gsm-codec-lib: libgsmefr/basicop2.c annotate

annotate libgsmefr/basicop2.c @ 176:9fb22fa4d373

doc/RTP-analysis: document rtp-g711-extr

author	Mychaela Falconia <falcon@freecalypso.org>
date	Tue, 27 Dec 2022 01:29:14 +0000
parents	38326102fc43
children

rev	line source
38 38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	3 \| Basic arithmetic operators. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	4 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	5 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	6
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	7 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	8 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	9 \| Include-Files \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	10 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	11 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	12
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	13 #include <stdint.h>
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	14 #include "typedef.h"
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	15 #include "namespace.h"
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	16 #include "basic_op.h"
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	17
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	18 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	19 #include "count.h"
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	20 extern BASIC_OP counter;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	21 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	22
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	23 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	24 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	25 \| Functions \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	26 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	27 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	28
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	29 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	30 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	31 \| Function Name : saturate \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	32 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	33 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	34 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	35 \| Limit the 32 bit input to the range of a 16 bit word. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	36 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	37 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	38 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	39 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	40 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	41 \| range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	42 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	43 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	44 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	45 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	46 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	47 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	48 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	49 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	50 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	51 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	52 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	53 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	54
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	55 static inline Word16
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	56 saturate (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	57 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	58 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	59
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	60 if (L_var1 > 0X00007fffL)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	61 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	62 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	63 var_out = MAX_16;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	64 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	65 else if (L_var1 < (Word32) 0xffff8000L)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	66 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	67 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	68 var_out = MIN_16;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	69 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	70 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	71 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	72 Overflow = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	73 var_out = extract_l (L_var1);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	74 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	75 counter.extract_l--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	76 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	77 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	78
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	79 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	80 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	81
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	82 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	83 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	84 \| Function Name : add \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	85 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	86 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	87 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	88 \| Performs the addition (var1+var2) with overflow control and saturation;\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	89 \| the 16 bit result is set at +32767 when overflow occurs or at -32768 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	90 \| when underflow occurs. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	91 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	92 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	93 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	94 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	95 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	96 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	97 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	98 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	99 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	100 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	101 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	102 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	103 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	104 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	105 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	106 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	107 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	108 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	109 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	110 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	111 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	112 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	113 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	114 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	115
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	116 Word16 add (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	117 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	118 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	119 Word32 L_sum;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	120
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	121 L_sum = (Word32) var1 + var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	122 var_out = saturate (L_sum);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	123 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	124 counter.add++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	125 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	126 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	127 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	128
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	129 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	130 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	131 \| Function Name : sub \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	132 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	133 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	134 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	135 \| Performs the subtraction (var1+var2) with overflow control and satu- \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	136 \| ration; the 16 bit result is set at +32767 when overflow occurs or at \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	137 \| -32768 when underflow occurs. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	138 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	139 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	140 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	141 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	142 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	143 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	144 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	145 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	146 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	147 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	148 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	149 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	150 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	151 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	152 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	153 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	154 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	155 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	156 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	157 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	158 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	159 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	160 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	161 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	162
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	163 Word16 sub (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	164 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	165 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	166 Word32 L_diff;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	167
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	168 L_diff = (Word32) var1 - var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	169 var_out = saturate (L_diff);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	170 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	171 counter.sub++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	172 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	173 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	174 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	175
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	176 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	177 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	178 \| Function Name : abs_s \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	179 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	180 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	181 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	182 \| Absolute value of var1; abs_s(-32768) = 32767. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	183 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	184 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	185 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	186 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	187 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	188 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	189 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	190 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	191 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	192 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	193 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	194 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	195 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	196 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	197 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	198 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	199 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	200 \| range : 0x0000 0000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	201 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	202 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	203
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	204 Word16 abs_s (Word16 var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	205 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	206 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	207
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	208 if (var1 == (Word16) 0X8000)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	209 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	210 var_out = MAX_16;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	211 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	212 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	213 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	214 if (var1 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	215 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	216 var_out = -var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	217 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	218 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	219 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	220 var_out = var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	221 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	222 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	223 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	224 counter.abs_s++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	225 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	226 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	227 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	228
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	229 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	230 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	231 \| Function Name : shl \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	232 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	233 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	234 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	235 \| Arithmetically shift the 16 bit input var1 left var2 positions.Zero fill\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	236 \| the var2 LSB of the result. If var2 is negative, arithmetically shift \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	237 \| var1 right by -var2 with sign extension. Saturate the result in case of \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	238 \| underflows or overflows. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	239 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	240 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	241 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	242 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	243 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	244 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	245 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	246 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	247 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	248 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	249 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	250 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	251 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	252 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	253 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	254 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	255 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	256 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	257 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	258 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	259 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	260 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	261 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	262 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	263
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	264 Word16 shl (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	265 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	266 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	267 Word32 result;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	268
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	269 if (var2 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	270 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	271 var_out = shr (var1, -var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	272 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	273 counter.shr--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	274 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	275 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	276 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	277 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	278 result = (Word32) var1 *((Word32) 1 << var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	279
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	280 if ((var2 > 15 && var1 != 0) \|\| (result != (Word32) ((Word16) result)))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	281 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	282 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	283 var_out = (var1 > 0) ? MAX_16 : MIN_16;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	284 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	285 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	286 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	287 var_out = extract_l (result);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	288 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	289 counter.extract_l--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	290 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	291 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	292 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	293 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	294 counter.shl++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	295 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	296 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	297 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	298
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	299 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	300 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	301 \| Function Name : shr \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	302 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	303 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	304 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	305 \| Arithmetically shift the 16 bit input var1 right var2 positions with \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	306 \| sign extension. If var2 is negative, arithmetically shift var1 left by \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	307 \| -var2 with sign extension. Saturate the result in case of underflows or \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	308 \| overflows. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	309 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	310 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	311 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	312 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	313 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	314 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	315 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	316 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	317 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	318 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	319 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	320 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	321 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	322 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	323 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	324 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	325 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	326 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	327 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	328 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	329 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	330 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	331 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	332 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	333
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	334 Word16 shr (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	335 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	336 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	337
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	338 if (var2 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	339 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	340 var_out = shl (var1, -var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	341 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	342 counter.shl--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	343 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	344 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	345 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	346 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	347 if (var2 >= 15)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	348 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	349 var_out = (var1 < 0) ? -1 : 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	350 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	351 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	352 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	353 if (var1 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	354 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	355 var_out = ~((~var1) >> var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	356 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	357 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	358 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	359 var_out = var1 >> var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	360 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	361 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	362 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	363
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	364 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	365 counter.shr++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	366 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	367 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	368 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	369
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	370 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	371 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	372 \| Function Name : mult \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	373 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	374 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	375 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	376 \| Performs the multiplication of var1 by var2 and gives a 16 bit result \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	377 \| which is scaled i.e.: \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	378 \| mult(var1,var2) = extract_l(L_shr((var1 times var2),15)) and \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	379 \| mult(-32768,-32768) = 32767. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	380 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	381 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	382 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	383 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	384 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	385 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	386 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	387 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	388 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	389 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	390 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	391 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	392 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	393 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	394 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	395 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	396 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	397 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	398 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	399 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	400 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	401 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	402 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	403 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	404
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	405 Word16 mult (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	406 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	407 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	408 Word32 L_product;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	409
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	410 L_product = (Word32) var1 *(Word32) var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	411
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	412 L_product = (L_product & (Word32) 0xffff8000L) >> 15;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	413
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	414 if (L_product & (Word32) 0x00010000L)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	415 L_product = L_product \| (Word32) 0xffff0000L;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	416
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	417 var_out = saturate (L_product);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	418 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	419 counter.mult++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	420 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	421 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	422 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	423
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	424 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	425 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	426 \| Function Name : L_mult \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	427 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	428 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	429 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	430 \| L_mult is the 32 bit result of the multiplication of var1 times var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	431 \| with one shift left i.e.: \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	432 \| L_mult(var1,var2) = L_shl((var1 times var2),1) and \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	433 \| L_mult(-32768,-32768) = 2147483647. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	434 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	435 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	436 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	437 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	438 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	439 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	440 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	441 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	442 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	443 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	444 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	445 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	446 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	447 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	448 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	449 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	450 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	451 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	452 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	453 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	454 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	455 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	456 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	457 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	458
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	459 Word32 L_mult (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	460 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	461 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	462
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	463 L_var_out = (Word32) var1 *(Word32) var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	464
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	465 if (L_var_out != (Word32) 0x40000000L)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	466 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	467 L_var_out *= 2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	468 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	469 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	470 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	471 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	472 L_var_out = MAX_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	473 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	474
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	475 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	476 counter.L_mult++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	477 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	478 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	479 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	480
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	481 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	482 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	483 \| Function Name : negate \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	484 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	485 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	486 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	487 \| Negate var1 with saturation, saturate in the case where input is -32768:\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	488 \| negate(var1) = sub(0,var1). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	489 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	490 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	491 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	492 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	493 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	494 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	495 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	496 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	497 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	498 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	499 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	500 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	501 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	502 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	503 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	504 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	505 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	506 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	507 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	508 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	509
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	510 Word16 negate (Word16 var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	511 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	512 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	513
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	514 var_out = (var1 == MIN_16) ? MAX_16 : -var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	515 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	516 counter.negate++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	517 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	518 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	519 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	520
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	521 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	522 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	523 \| Function Name : extract_h \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	524 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	525 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	526 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	527 \| Return the 16 MSB of L_var1. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	528 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	529 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	530 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	531 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	532 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	533 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	534 \| 32 bit long signed integer (Word32 ) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	535 \| range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	536 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	537 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	538 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	539 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	540 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	541 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	542 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	543 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	544 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	545 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	546 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	547 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	548
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	549 Word16 extract_h (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	550 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	551 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	552
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	553 var_out = (Word16) (L_var1 >> 16);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	554 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	555 counter.extract_h++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	556 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	557 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	558 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	559
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	560 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	561 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	562 \| Function Name : extract_l \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	563 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	564 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	565 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	566 \| Return the 16 LSB of L_var1. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	567 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	568 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	569 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	570 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	571 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	572 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	573 \| 32 bit long signed integer (Word32 ) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	574 \| range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	575 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	576 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	577 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	578 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	579 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	580 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	581 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	582 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	583 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	584 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	585 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	586 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	587
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	588 Word16 extract_l (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	589 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	590 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	591
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	592 var_out = (Word16) L_var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	593 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	594 counter.extract_l++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	595 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	596 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	597 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	598
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	599 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	600 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	601 \| Function Name : round \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	602 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	603 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	604 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	605 \| Round the lower 16 bits of the 32 bit input number into the MS 16 bits \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	606 \| with saturation. Shift the resulting bits right by 16 and return the 16 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	607 \| bit number: \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	608 \| round(L_var1) = extract_h(L_add(L_var1,32768)) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	609 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	610 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	611 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	612 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	613 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	614 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	615 \| 32 bit long signed integer (Word32 ) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	616 \| range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	617 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	618 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	619 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	620 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	621 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	622 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	623 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	624 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	625 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	626 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	627 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	628 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	629
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	630 Word16 round (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	631 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	632 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	633 Word32 L_rounded;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	634
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	635 L_rounded = L_add (L_var1, (Word32) 0x00008000L);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	636 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	637 counter.L_add--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	638 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	639 var_out = extract_h (L_rounded);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	640 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	641 counter.extract_h--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	642 counter.round++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	643 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	644 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	645 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	646
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	647 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	648 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	649 \| Function Name : L_mac \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	650 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	651 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	652 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	653 \| Multiply var1 by var2 and shift the result left by 1. Add the 32 bit \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	654 \| result to L_var3 with saturation, return a 32 bit result: \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	655 \| L_mac(L_var3,var1,var2) = L_add(L_var3,L_mult(var1,var2)). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	656 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	657 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	658 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	659 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	660 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	661 \| L_var3 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	662 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	663 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	664 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	665 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	666 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	667 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	668 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	669 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	670 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	671 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	672 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	673 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	674 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	675 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	676 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	677 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	678 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	679 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	680 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	681 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	682 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	683
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	684 Word32 L_mac (Word32 L_var3, Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	685 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	686 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	687 Word32 L_product;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	688
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	689 L_product = L_mult (var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	690 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	691 counter.L_mult--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	692 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	693 L_var_out = L_add (L_var3, L_product);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	694 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	695 counter.L_add--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	696 counter.L_mac++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	697 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	698 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	699 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	700
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	701 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	702 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	703 \| Function Name : L_msu \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	704 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	705 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	706 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	707 \| Multiply var1 by var2 and shift the result left by 1. Subtract the 32 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	708 \| bit result to L_var3 with saturation, return a 32 bit result: \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	709 \| L_msu(L_var3,var1,var2) = L_sub(L_var3,L_mult(var1,var2)). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	710 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	711 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	712 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	713 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	714 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	715 \| L_var3 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	716 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	717 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	718 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	719 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	720 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	721 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	722 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	723 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	724 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	725 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	726 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	727 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	728 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	729 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	730 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	731 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	732 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	733 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	734 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	735 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	736 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	737
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	738 Word32 L_msu (Word32 L_var3, Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	739 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	740 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	741 Word32 L_product;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	742
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	743 L_product = L_mult (var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	744 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	745 counter.L_mult--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	746 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	747 L_var_out = L_sub (L_var3, L_product);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	748 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	749 counter.L_sub--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	750 counter.L_msu++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	751 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	752 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	753 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	754
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	755 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	756 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	757 \| Function Name : L_macNs \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	758 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	759 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	760 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	761 \| Multiply var1 by var2 and shift the result left by 1. Add the 32 bit \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	762 \| result to L_var3 without saturation, return a 32 bit result. Generate \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	763 \| carry and overflow values : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	764 \| L_macNs(L_var3,var1,var2) = L_add_c(L_var3,L_mult(var1,var2)). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	765 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	766 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	767 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	768 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	769 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	770 \| L_var3 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	771 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	772 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	773 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	774 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	775 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	776 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	777 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	778 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	779 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	780 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	781 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	782 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	783 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	784 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	785 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	786 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	787 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	788 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	789 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	790 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	791 \| Caution : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	792 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	793 \| In some cases the Carry flag has to be cleared or set before using \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	794 \| operators which take into account its value. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	795 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	796 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	797
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	798 Word32 L_macNs (Word32 L_var3, Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	799 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	800 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	801
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	802 L_var_out = L_mult (var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	803 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	804 counter.L_mult--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	805 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	806 L_var_out = L_add_c (L_var3, L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	807 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	808 counter.L_add_c--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	809 counter.L_macNs++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	810 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	811 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	812 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	813
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	814 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	815 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	816 \| Function Name : L_msuNs \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	817 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	818 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	819 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	820 \| Multiply var1 by var2 and shift the result left by 1. Subtract the 32 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	821 \| bit result from L_var3 without saturation, return a 32 bit result. Ge- \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	822 \| nerate carry and overflow values : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	823 \| L_msuNs(L_var3,var1,var2) = L_sub_c(L_var3,L_mult(var1,var2)). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	824 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	825 \| Complexity weight : 1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	826 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	827 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	828 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	829 \| L_var3 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	830 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	831 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	832 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	833 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	834 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	835 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	836 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	837 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	838 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	839 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	840 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	841 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	842 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	843 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	844 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	845 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	846 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	847 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	848 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	849 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	850 \| Caution : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	851 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	852 \| In some cases the Carry flag has to be cleared or set before using \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	853 \| operators which take into account its value. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	854 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	855 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	856
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	857 Word32 L_msuNs (Word32 L_var3, Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	858 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	859 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	860
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	861 L_var_out = L_mult (var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	862 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	863 counter.L_mult--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	864 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	865 L_var_out = L_sub_c (L_var3, L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	866 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	867 counter.L_sub_c--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	868 counter.L_msuNs++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	869 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	870 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	871 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	872
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	873 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	874 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	875 \| Function Name : L_add \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	876 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	877 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	878 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	879 \| 32 bits addition of the two 32 bits variables (L_var1+L_var2) with \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	880 \| overflow control and saturation; the result is set at +2147483647 when \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	881 \| overflow occurs or at -2147483648 when underflow occurs. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	882 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	883 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	884 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	885 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	886 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	887 \| L_var1 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	888 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	889 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	890 \| L_var2 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	891 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	892 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	893 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	894 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	895 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	896 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	897 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	898 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	899 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	900 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	901 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	902 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	903 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	904
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	905 Word32 L_add (Word32 L_var1, Word32 L_var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	906 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	907 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	908
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	909 L_var_out = L_var1 + L_var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	910
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	911 if (((L_var1 ^ L_var2) & MIN_32) == 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	912 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	913 if ((L_var_out ^ L_var1) & MIN_32)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	914 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	915 L_var_out = (L_var1 < 0) ? MIN_32 : MAX_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	916 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	917 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	918 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	919 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	920 counter.L_add++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	921 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	922 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	923 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	924
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	925 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	926 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	927 \| Function Name : L_sub \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	928 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	929 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	930 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	931 \| 32 bits subtraction of the two 32 bits variables (L_var1-L_var2) with \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	932 \| overflow control and saturation; the result is set at +2147483647 when \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	933 \| overflow occurs or at -2147483648 when underflow occurs. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	934 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	935 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	936 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	937 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	938 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	939 \| L_var1 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	940 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	941 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	942 \| L_var2 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	943 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	944 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	945 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	946 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	947 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	948 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	949 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	950 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	951 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	952 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	953 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	954 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	955 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	956
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	957 Word32 L_sub (Word32 L_var1, Word32 L_var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	958 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	959 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	960
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	961 L_var_out = L_var1 - L_var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	962
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	963 if (((L_var1 ^ L_var2) & MIN_32) != 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	964 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	965 if ((L_var_out ^ L_var1) & MIN_32)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	966 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	967 L_var_out = (L_var1 < 0L) ? MIN_32 : MAX_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	968 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	969 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	970 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	971 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	972 counter.L_sub++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	973 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	974 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	975 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	976
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	977 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	978 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	979 \| Function Name : L_add_c \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	980 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	981 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	982 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	983 \| Performs 32 bits addition of the two 32 bits variables (L_var1+L_var2+C)\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	984 \| with carry. No saturation. Generate carry and Overflow values. The car- \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	985 \| ry and overflow values are binary variables which can be tested and as- \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	986 \| signed values. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	987 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	988 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	989 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	990 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	991 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	992 \| L_var1 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	993 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	994 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	995 \| L_var2 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	996 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	997 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	998 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	999 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1000 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1001 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1002 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1003 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1004 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1005 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1006 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1007 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1008 \| Caution : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1009 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1010 \| In some cases the Carry flag has to be cleared or set before using \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1011 \| operators which take into account its value. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1012 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1013 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1014 Word32 L_add_c (Word32 L_var1, Word32 L_var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1015 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1016 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1017 Word32 L_test;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1018 Flag carry_int = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1019
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1020 L_var_out = L_var1 + L_var2 + Carry;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1021
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1022 L_test = L_var1 + L_var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1023
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1024 if ((L_var1 > 0) && (L_var2 > 0) && (L_test < 0))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1025 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1026 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1027 carry_int = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1028 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1029 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1030 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1031 if ((L_var1 < 0) && (L_var2 < 0))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1032 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1033 if (L_test >= 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1034 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1035 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1036 carry_int = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1037 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1038 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1039 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1040 Overflow = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1041 carry_int = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1042 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1043 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1044 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1045 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1046 if (((L_var1 ^ L_var2) < 0) && (L_test >= 0))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1047 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1048 Overflow = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1049 carry_int = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1050 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1051 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1052 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1053 Overflow = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1054 carry_int = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1055 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1056 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1057 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1058
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1059 if (Carry)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1060 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1061 if (L_test == MAX_32)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1062 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1063 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1064 Carry = carry_int;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1065 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1066 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1067 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1068 if (L_test == (Word32) 0xFFFFFFFFL)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1069 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1070 Carry = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1071 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1072 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1073 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1074 Carry = carry_int;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1075 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1076 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1077 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1078 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1079 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1080 Carry = carry_int;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1081 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1082
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1083 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1084 counter.L_add_c++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1085 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1086 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1087 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1088
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1089 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1090 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1091 \| Function Name : L_sub_c \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1092 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1093 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1094 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1095 \| Performs 32 bits subtraction of the two 32 bits variables with carry \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1096 \| (borrow) : L_var1-L_var2-C. No saturation. Generate carry and Overflow \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1097 \| values. The carry and overflow values are binary variables which can \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1098 \| be tested and assigned values. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1099 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1100 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1101 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1102 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1103 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1104 \| L_var1 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1105 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1106 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1107 \| L_var2 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1108 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1109 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1110 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1111 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1112 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1113 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1114 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1115 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1116 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1117 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1118 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1119 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1120 \| Caution : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1121 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1122 \| In some cases the Carry flag has to be cleared or set before using \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1123 \| operators which take into account its value. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1124 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1125 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1126
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1127 Word32 L_sub_c (Word32 L_var1, Word32 L_var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1128 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1129 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1130 Word32 L_test;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1131 Flag carry_int = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1132
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1133 if (Carry)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1134 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1135 Carry = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1136 if (L_var2 != MIN_32)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1137 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1138 L_var_out = L_add_c (L_var1, -L_var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1139 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1140 counter.L_add_c--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1141 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1142 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1143 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1144 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1145 L_var_out = L_var1 - L_var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1146 if (L_var1 > 0L)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1147 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1148 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1149 Carry = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1150 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1151 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1152 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1153 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1154 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1155 L_var_out = L_var1 - L_var2 - (Word32) 0X00000001L;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1156 L_test = L_var1 - L_var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1157
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1158 if ((L_test < 0) && (L_var1 > 0) && (L_var2 < 0))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1159 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1160 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1161 carry_int = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1162 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1163 else if ((L_test > 0) && (L_var1 < 0) && (L_var2 > 0))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1164 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1165 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1166 carry_int = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1167 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1168 else if ((L_test > 0) && ((L_var1 ^ L_var2) > 0))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1169 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1170 Overflow = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1171 carry_int = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1172 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1173 if (L_test == MIN_32)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1174 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1175 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1176 Carry = carry_int;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1177 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1178 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1179 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1180 Carry = carry_int;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1181 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1182 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1183
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1184 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1185 counter.L_sub_c++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1186 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1187 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1188 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1189
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1190 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1191 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1192 \| Function Name : L_negate \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1193 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1194 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1195 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1196 \| Negate the 32 bit variable L_var1 with saturation; saturate in the case \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1197 \| where input is -2147483648 (0x8000 0000). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1198 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1199 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1200 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1201 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1202 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1203 \| L_var1 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1204 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1205 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1206 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1207 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1208 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1209 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1210 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1211 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1212 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1213 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1214 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1215 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1216 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1217
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1218 Word32 L_negate (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1219 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1220 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1221
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1222 L_var_out = (L_var1 == MIN_32) ? MAX_32 : -L_var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1223 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1224 counter.L_negate++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1225 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1226 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1227 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1228
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1229 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1230 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1231 \| Function Name : mult_r \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1232 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1233 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1234 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1235 \| Same as mult with rounding, i.e.: \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1236 \| mult_r(var1,var2) = extract_l(L_shr(((var1 * var2) + 16384),15)) and \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1237 \| mult_r(-32768,-32768) = 32767. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1238 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1239 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1240 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1241 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1242 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1243 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1244 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1245 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1246 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1247 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1248 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1249 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1250 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1251 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1252 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1253 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1254 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1255 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1256 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1257 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1258 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1259 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1260 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1261 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1262
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1263 Word16 mult_r (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1264 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1265 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1266 Word32 L_product_arr;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1267
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1268 L_product_arr = (Word32) var1 (Word32) var2; / product */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1269 L_product_arr += (Word32) 0x00004000L; /* round */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1270 L_product_arr &= (Word32) 0xffff8000L;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1271 L_product_arr >>= 15; /* shift */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1272
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1273 if (L_product_arr & (Word32) 0x00010000L) /* sign extend when necessary */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1274 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1275 L_product_arr \|= (Word32) 0xffff0000L;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1276 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1277 var_out = saturate (L_product_arr);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1278 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1279 counter.mult_r++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1280 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1281 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1282 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1283
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1284 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1285 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1286 \| Function Name : L_shl \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1287 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1288 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1289 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1290 \| Arithmetically shift the 32 bit input L_var1 left var2 positions. Zero \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1291 \| fill the var2 LSB of the result. If var2 is negative, arithmetically \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1292 \| shift L_var1 right by -var2 with sign extension. Saturate the result in \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1293 \| case of underflows or overflows. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1294 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1295 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1296 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1297 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1298 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1299 \| L_var1 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1300 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1301 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1302 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1303 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1304 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1305 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1306 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1307 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1308 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1309 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1310 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1311 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1312 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1313 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1314 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1315 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1316 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1317
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1318 Word32 L_shl (Word32 L_var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1319 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1320 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1321
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1322 if (var2 <= 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1323 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1324 L_var_out = L_shr (L_var1, -var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1325 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1326 counter.L_shr--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1327 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1328 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1329 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1330 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1331 for (; var2 > 0; var2--)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1332 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1333 if (L_var1 > (Word32) 0X3fffffffL)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1334 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1335 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1336 L_var_out = MAX_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1337 break;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1338 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1339 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1340 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1341 if (L_var1 < (Word32) 0xc0000000L)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1342 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1343 Overflow = 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1344 L_var_out = MIN_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1345 break;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1346 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1347 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1348 L_var1 *= 2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1349 L_var_out = L_var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1350 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1351 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1352 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1353 counter.L_shl++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1354 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1355 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1356 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1357
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1358 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1359 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1360 \| Function Name : L_shr \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1361 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1362 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1363 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1364 \| Arithmetically shift the 32 bit input L_var1 right var2 positions with \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1365 \| sign extension. If var2 is negative, arithmetically shift L_var1 left \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1366 \| by -var2 and zero fill the -var2 LSB of the result. Saturate the result \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1367 \| in case of underflows or overflows. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1368 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1369 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1370 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1371 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1372 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1373 \| L_var1 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1374 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1375 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1376 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1377 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1378 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1379 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1380 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1381 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1382 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1383 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1384 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1385 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1386 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1387 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1388 \| range : 0x8000 0000 <= L_var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1389 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1390 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1391
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1392 Word32 L_shr (Word32 L_var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1393 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1394 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1395
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1396 if (var2 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1397 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1398 L_var_out = L_shl (L_var1, -var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1399 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1400 counter.L_shl--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1401 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1402 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1403 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1404 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1405 if (var2 >= 31)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1406 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1407 L_var_out = (L_var1 < 0L) ? -1 : 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1408 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1409 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1410 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1411 if (L_var1 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1412 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1413 L_var_out = ~((~L_var1) >> var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1414 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1415 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1416 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1417 L_var_out = L_var1 >> var2;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1418 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1419 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1420 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1421 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1422 counter.L_shr++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1423 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1424 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1425 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1426
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1427 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1428 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1429 \| Function Name : shr_r \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1430 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1431 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1432 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1433 \| Same as shr(var1,var2) but with rounding. Saturate the result in case of\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1434 \| underflows or overflows : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1435 \| - If var2 is greater than zero : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1436 \| if (sub(shl(shr(var1,var2),1),shr(var1,sub(var2,1)))) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1437 \| is equal to zero \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1438 \| then \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1439 \| shr_r(var1,var2) = shr(var1,var2) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1440 \| else \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1441 \| shr_r(var1,var2) = add(shr(var1,var2),1) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1442 \| - If var2 is less than or equal to zero : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1443 \| shr_r(var1,var2) = shr(var1,var2). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1444 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1445 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1446 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1447 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1448 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1449 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1450 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1451 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1452 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1453 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1454 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1455 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1456 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1457 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1458 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1459 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1460 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1461 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1462 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1463 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1464 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1465 \| range : 0xffff 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1466 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1467 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1468
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1469 Word16 shr_r (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1470 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1471 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1472
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1473 if (var2 > 15)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1474 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1475 var_out = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1476 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1477 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1478 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1479 var_out = shr (var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1480 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1481 counter.shr--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1482 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1483
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1484 if (var2 > 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1485 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1486 if ((var1 & ((Word16) 1 << (var2 - 1))) != 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1487 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1488 var_out++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1489 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1490 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1491 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1492 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1493 counter.shr_r++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1494 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1495 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1496 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1497
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1498 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1499 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1500 \| Function Name : mac_r \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1501 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1502 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1503 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1504 \| Multiply var1 by var2 and shift the result left by 1. Add the 32 bit \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1505 \| result to L_var3 with saturation. Round the LS 16 bits of the result \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1506 \| into the MS 16 bits with saturation and shift the result right by 16. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1507 \| Return a 16 bit result. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1508 \| mac_r(L_var3,var1,var2) = round(L_mac(L_var3,var1,var2)) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1509 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1510 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1511 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1512 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1513 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1514 \| L_var3 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1515 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1516 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1517 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1518 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1519 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1520 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1521 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1522 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1523 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1524 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1525 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1526 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1527 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1528 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1529 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1530 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1531 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1532 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1533 \| range : 0x0000 8000 <= L_var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1534 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1535 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1536
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1537 Word16 mac_r (Word32 L_var3, Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1538 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1539 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1540
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1541 L_var3 = L_mac (L_var3, var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1542 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1543 counter.L_mac--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1544 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1545 L_var3 = L_add (L_var3, (Word32) 0x00008000L);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1546 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1547 counter.L_add--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1548 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1549 var_out = extract_h (L_var3);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1550 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1551 counter.extract_h--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1552 counter.mac_r++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1553 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1554 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1555 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1556
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1557 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1558 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1559 \| Function Name : msu_r \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1560 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1561 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1562 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1563 \| Multiply var1 by var2 and shift the result left by 1. Subtract the 32 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1564 \| bit result to L_var3 with saturation. Round the LS 16 bits of the res- \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1565 \| ult into the MS 16 bits with saturation and shift the result right by \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1566 \| 16. Return a 16 bit result. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1567 \| msu_r(L_var3,var1,var2) = round(L_msu(L_var3,var1,var2)) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1568 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1569 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1570 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1571 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1572 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1573 \| L_var3 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1574 \| range : 0x8000 0000 <= L_var3 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1575 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1576 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1577 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1578 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1579 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1580 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1581 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1582 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1583 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1584 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1585 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1586 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1587 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1588 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1589 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1590 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1591 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1592 \| range : 0x0000 8000 <= L_var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1593 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1594 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1595
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1596 Word16 msu_r (Word32 L_var3, Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1597 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1598 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1599
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1600 L_var3 = L_msu (L_var3, var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1601 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1602 counter.L_msu--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1603 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1604 L_var3 = L_add (L_var3, (Word32) 0x00008000L);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1605 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1606 counter.L_add--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1607 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1608 var_out = extract_h (L_var3);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1609 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1610 counter.extract_h--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1611 counter.msu_r++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1612 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1613 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1614 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1615
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1616 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1617 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1618 \| Function Name : L_deposit_h \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1619 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1620 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1621 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1622 \| Deposit the 16 bit var1 into the 16 MS bits of the 32 bit output. The \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1623 \| 16 LS bits of the output are zeroed. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1624 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1625 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1626 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1627 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1628 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1629 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1630 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1631 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1632 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1633 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1634 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1635 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1636 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1637 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1638 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1639 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1640 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1641 \| range : 0x8000 0000 <= var_out <= 0x7fff 0000. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1642 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1643 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1644
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1645 Word32 L_deposit_h (Word16 var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1646 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1647 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1648
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1649 L_var_out = (Word32) var1 << 16;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1650 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1651 counter.L_deposit_h++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1652 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1653 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1654 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1655
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1656 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1657 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1658 \| Function Name : L_deposit_l \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1659 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1660 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1661 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1662 \| Deposit the 16 bit var1 into the 16 LS bits of the 32 bit output. The \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1663 \| 16 MS bits of the output are sign extended. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1664 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1665 \| Complexity weight : 2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1666 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1667 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1668 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1669 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1670 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1671 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1672 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1673 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1674 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1675 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1676 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1677 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1678 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1679 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1680 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1681 \| range : 0xFFFF 8000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1682 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1683 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1684
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1685 Word32 L_deposit_l (Word16 var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1686 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1687 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1688
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1689 L_var_out = (Word32) var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1690 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1691 counter.L_deposit_l++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1692 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1693 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1694 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1695
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1696 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1697 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1698 \| Function Name : L_shr_r \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1699 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1700 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1701 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1702 \| Same as L_shr(L_var1,var2) but with rounding. Saturate the result in \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1703 \| case of underflows or overflows : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1704 \| - If var2 is greater than zero : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1705 \| if (L_sub(L_shl(L_shr(L_var1,var2),1),L_shr(L_var1,sub(var2,1))))\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1706 \| is equal to zero \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1707 \| then \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1708 \| L_shr_r(L_var1,var2) = L_shr(L_var1,var2) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1709 \| else \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1710 \| L_shr_r(L_var1,var2) = L_add(L_shr(L_var1,var2),1) \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1711 \| - If var2 is less than or equal to zero : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1712 \| L_shr_r(L_var1,var2) = L_shr(L_var1,var2). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1713 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1714 \| Complexity weight : 3 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1715 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1716 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1717 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1718 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1719 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1720 \| range : 0x8000 0000 <= var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1721 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1722 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1723 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1724 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1725 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1726 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1727 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1728 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1729 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1730 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1731 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1732 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1733 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1734 \| range : 0x8000 0000 <= var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1735 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1736 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1737
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1738 Word32 L_shr_r (Word32 L_var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1739 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1740 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1741
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1742 if (var2 > 31)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1743 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1744 L_var_out = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1745 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1746 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1747 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1748 L_var_out = L_shr (L_var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1749 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1750 counter.L_shr--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1751 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1752 if (var2 > 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1753 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1754 if ((L_var1 & ((Word32) 1 << (var2 - 1))) != 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1755 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1756 L_var_out++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1757 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1758 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1759 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1760 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1761 counter.L_shr_r++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1762 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1763 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1764 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1765
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1766 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1767 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1768 \| Function Name : L_abs \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1769 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1770 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1771 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1772 \| Absolute value of L_var1; Saturate in case where the input is \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1773 \| -214783648 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1774 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1775 \| Complexity weight : 3 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1776 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1777 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1778 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1779 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1780 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1781 \| range : 0x8000 0000 <= var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1782 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1783 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1784 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1785 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1786 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1787 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1788 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1789 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1790 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1791 \| range : 0x0000 0000 <= var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1792 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1793 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1794
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1795 Word32 L_abs (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1796 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1797 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1798
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1799 if (L_var1 == MIN_32)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1800 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1801 L_var_out = MAX_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1802 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1803 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1804 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1805 if (L_var1 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1806 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1807 L_var_out = -L_var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1808 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1809 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1810 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1811 L_var_out = L_var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1812 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1813 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1814
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1815 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1816 counter.L_abs++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1817 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1818 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1819 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1820
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1821 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1822 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1823 \| Function Name : L_sat \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1824 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1825 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1826 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1827 \| 32 bit L_var1 is set to 2147483647 if an overflow occured or to \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1828 \| -2147483648 if an underflow occured on the most recent L_add_c, \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1829 \| L_sub_c, L_macNs or L_msuNs operations. The carry and overflow values \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1830 \| are binary values which can be tested and assigned values. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1831 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1832 \| Complexity weight : 4 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1833 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1834 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1835 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1836 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1837 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1838 \| range : 0x8000 0000 <= var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1839 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1840 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1841 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1842 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1843 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1844 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1845 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1846 \| L_var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1847 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1848 \| range : 0x8000 0000 <= var_out <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1849 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1850 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1851
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1852 Word32 L_sat (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1853 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1854 Word32 L_var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1855
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1856 L_var_out = L_var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1857
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1858 if (Overflow)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1859 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1860
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1861 if (Carry)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1862 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1863 L_var_out = MIN_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1864 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1865 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1866 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1867 L_var_out = MAX_32;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1868 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1869
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1870 Carry = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1871 Overflow = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1872 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1873 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1874 counter.L_sat++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1875 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1876 return (L_var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1877 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1878
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1879 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1880 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1881 \| Function Name : norm_s \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1882 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1883 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1884 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1885 \| Produces the number of left shift needed to normalize the 16 bit varia- \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1886 \| ble var1 for positive values on the interval with minimum of 16384 and \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1887 \| maximum of 32767, and for negative values on the interval with minimum \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1888 \| of -32768 and maximum of -16384; in order to normalize the result, the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1889 \| following operation must be done : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1890 \| norm_var1 = shl(var1,norm_s(var1)). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1891 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1892 \| Complexity weight : 15 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1893 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1894 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1895 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1896 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1897 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1898 \| range : 0xffff 8000 <= var1 <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1899 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1900 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1901 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1902 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1903 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1904 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1905 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1906 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1907 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1908 \| range : 0x0000 0000 <= var_out <= 0x0000 000f. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1909 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1910 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1911
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1912 Word16 norm_s (Word16 var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1913 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1914 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1915
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1916 if (var1 == 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1917 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1918 var_out = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1919 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1920 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1921 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1922 if (var1 == (Word16) 0xffff)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1923 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1924 var_out = 15;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1925 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1926 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1927 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1928 if (var1 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1929 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1930 var1 = ~var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1931 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1932 for (var_out = 0; var1 < 0x4000; var_out++)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1933 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1934 var1 <<= 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1935 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1936 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1937 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1938
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1939 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1940 counter.norm_s++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1941 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1942 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1943 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1944
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1945 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1946 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1947 \| Function Name : div_s \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1948 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1949 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1950 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1951 \| Produces a result which is the fractional integer division of var1 by \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1952 \| var2; var1 and var2 must be positive and var2 must be greater or equal \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1953 \| to var1; the result is positive (leading bit equal to 0) and truncated \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1954 \| to 16 bits. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1955 \| If var1 = var2 then div(var1,var2) = 32767. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1956 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1957 \| Complexity weight : 18 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1958 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1959 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1960 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1961 \| var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1962 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1963 \| range : 0x0000 0000 <= var1 <= var2 and var2 != 0. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1964 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1965 \| var2 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1966 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1967 \| range : var1 <= var2 <= 0x0000 7fff and var2 != 0. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1968 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1969 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1970 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1971 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1972 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1973 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1974 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1975 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1976 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1977 \| range : 0x0000 0000 <= var_out <= 0x0000 7fff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1978 \| It's a Q15 value (point between b15 and b14). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1979 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1980 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1981
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1982 Word16 div_s (Word16 var1, Word16 var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1983 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1984 Word16 var_out = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1985 Word16 iteration;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1986 Word32 L_num;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1987 Word32 L_denom;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1988
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1989 #if 0
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1990 if ((var1 > var2) \|\| (var1 < 0) \|\| (var2 < 0))
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1991 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1992 printf ("Division Error var1=%d var2=%d\n", var1, var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1993 exit (0);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1994 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1995 if (var2 == 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1996 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1997 printf ("Division by 0, Fatal error \n");
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1998 exit (0);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1999 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2000 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2001
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2002 if (var1 == 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2003 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2004 var_out = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2005 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2006 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2007 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2008 if (var1 == var2)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2009 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2010 var_out = MAX_16;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2011 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2012 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2013 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2014 L_num = L_deposit_l (var1);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2015 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2016 counter.L_deposit_l--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2017 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2018 L_denom = L_deposit_l (var2);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2019 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2020 counter.L_deposit_l--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2021 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2022
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2023 for (iteration = 0; iteration < 15; iteration++)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2024 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2025 var_out <<= 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2026 L_num <<= 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2027
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2028 if (L_num >= L_denom)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2029 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2030 L_num = L_sub (L_num, L_denom);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2031 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2032 counter.L_sub--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2033 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2034 var_out = add (var_out, 1);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2035 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2036 counter.add--;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2037 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2038 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2039 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2040 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2041 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2042
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2043 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2044 counter.div_s++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2045 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2046 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2047 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2048
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2049 /*___________________________________________________________________________
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2050 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2051 \| Function Name : norm_l \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2052 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2053 \| Purpose : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2054 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2055 \| Produces the number of left shifts needed to normalize the 32 bit varia-\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2056 \| ble L_var1 for positive values on the interval with minimum of \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2057 \| 1073741824 and maximum of 2147483647, and for negative values on the in-\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2058 \| terval with minimum of -2147483648 and maximum of -1073741824; in order \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2059 \| to normalize the result, the following operation must be done : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2060 \| norm_L_var1 = L_shl(L_var1,norm_l(L_var1)). \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2061 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2062 \| Complexity weight : 30 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2063 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2064 \| Inputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2065 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2066 \| L_var1 \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2067 \| 32 bit long signed integer (Word32) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2068 \| range : 0x8000 0000 <= var1 <= 0x7fff ffff. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2069 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2070 \| Outputs : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2071 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2072 \| none \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2073 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2074 \| Return Value : \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2075 \| \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2076 \| var_out \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2077 \| 16 bit short signed integer (Word16) whose value falls in the \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2078 \| range : 0x0000 0000 <= var_out <= 0x0000 001f. \|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2079 \|___________________________________________________________________________\|
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2080 */
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2081
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2082 Word16 norm_l (Word32 L_var1)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2083 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2084 Word16 var_out;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2085
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2086 if (L_var1 == 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2087 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2088 var_out = 0;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2089 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2090 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2091 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2092 if (L_var1 == (Word32) 0xffffffffL)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2093 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2094 var_out = 31;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2095 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2096 else
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2097 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2098 if (L_var1 < 0)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2099 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2100 L_var1 = ~L_var1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2101 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2102 for (var_out = 0; L_var1 < (Word32) 0x40000000L; var_out++)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2103 {
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2104 L_var1 <<= 1;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2105 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2106 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2107 }
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2108
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2109 #if (WMOPS)
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2110 counter.norm_l++;
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2111 #endif
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2112 return (var_out);
38326102fc43 libgsmefr: beginning to integrate code from ETSI Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2113 }

FreeCalypso > hg > gsm-codec-lib

annotate libgsmefr/basicop2.c @ 176:9fb22fa4d373