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annotate src/gpf3/ccd/gsm5_v.c @ 541:5019764a0e9f

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doc/Config-vars: RVTMUX_ON_MODEM documented
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 06 Nov 2018 05:20:02 +0000
parents c41a534f33c6
children
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul : gsm5_v.c
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2002 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : Definition of encoding and decoding functions for GSM5_V elements
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18 +-----------------------------------------------------------------------------
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19 */
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20
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21
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22 /*
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23 * standard definitions like GLOBAL, UCHAR, ERROR etc.
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24 */
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25 #include "typedefs.h"
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26 #include "header.h"
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27
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28 /*
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29 * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only
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30 * look at ccdapi.h
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31 */
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32 #undef USE_DRIVER
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33 #include "ccdapi.h"
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34
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35 /*
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36 * Types and functions for bit access and manipulation
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37 */
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38 #include "ccd_globs.h"
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39 #include "bitfun.h"
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40
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41 /*
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42 * Prototypes of ccd internal functions
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43 */
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44 #include "ccd.h"
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45
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46 /*
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47 * Declaration of coder/decoder tables
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48 */
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49 #include "ccdtable.h"
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50 #include "ccddata.h"
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51
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52 #ifndef RUN_INT_RAM
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53 /*
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54 +--------------------------------------------------------------------+
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55 | PROJECT : CCD (6144) MODULE : CDC_GSM |
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56 | STATE : code ROUTINE : cdc_gsm5v_decode |
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57 +--------------------------------------------------------------------+
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58
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59 PURPOSE : Decoding of the GSM Type 5V element. This element
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60 consists of the not decoded bits of the bitstream.
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61 In the target C-structure this element is a bitbuffer
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62 (T_xxx_BUF) in wich the bitstream content are written.
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63
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64 */
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65
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66 SHORT cdc_gsm5v_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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67 {
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68 #ifdef DEBUG_CCD
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69 #ifndef CCD_SYMBOLS
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70 TRACE_CCD (globs, "cdc_gsm5v_decode()");
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71 #else
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72 TRACE_CCD (globs, "cdc_gsm5v_decode() %s", ccddata_get_alias((USHORT) e_ref, 1));
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73 #endif
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74 #endif
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75
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76 if (globs->bitpos >= globs->buflen)
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77 {
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78 return 1;
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79 }
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80 else
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81 {
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82 ULONG cix_ref;
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83
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84 cix_ref = melem[e_ref].calcIdxRef;
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85
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86 /*
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87 * if this element is conditional, check the condition
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88 */
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89 if (calcidx[cix_ref].numCondCalcs NEQ 0
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90 AND ! ccd_conditionOK (e_ref, globs))
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91 {
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92 return 1;
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93 }
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94 else
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95 {
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96 ULONG bits_to_read;
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97 ULONG num_prolog_steps, prolog_step_ref;
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98
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99 num_prolog_steps = calcidx[cix_ref].numPrologSteps;
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100 prolog_step_ref = calcidx[cix_ref].prologStepRef;
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101
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102 /* If there is a prologue given for this element, process it. */
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103 if (num_prolog_steps)
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104 {
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105 ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
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106 }
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107
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108 /*
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109 * Setup the offset into the C-structure for this element
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110 */
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111 globs->pstructOffs = melem[e_ref].structOffs;
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112
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113 if (melem[e_ref].optional)
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114 {
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115 /*
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116 * for optional elements set the valid-flag in the C-struct.
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117 */
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118 globs->pstruct[globs->pstructOffs++] = TRUE;
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119 }
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120
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121 if (globs->maxBitpos < globs->buflen - 16*globs->numEOCPending)
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122 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 ccd_recordFault (globs, ERR_LEN_MISMATCH, CONTINUE, (USHORT) e_ref,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 globs->pstruct + globs->pstructOffs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 bits_to_read = (ULONG)(globs->buflen - globs->bitpos - 16*globs->numEOCPending);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 bf_readBitChunk (bits_to_read, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 #endif /* !RUN_INT_RAM */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 #ifndef RUN_INT_RAM
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 +--------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 | PROJECT : CCD (6144) MODULE : CDC_GSM |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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140 | STATE : code ROUTINE : cdc_gsm5v_encode |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 +--------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 PURPOSE : Encoding of the GSM Type 5V element. This element
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 consists of the not decoded bits of the bitstream.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 In the target C-structure this element is a bitbuffer
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 (T_xxx_BUF) from wich the bitstream content is read.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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147
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 SHORT cdc_gsm5v_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 ULONG cix_ref, num_prolog_steps, prolog_step_ref;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 #ifdef DEBUG_CCD
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 #ifndef CCD_SYMBOLS
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 TRACE_CCD (globs, "cdc_gsm5v_encode()");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 #else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 TRACE_CCD (globs, "cdc_gsm5v_encode() %s", ccddata_get_alias((USHORT) e_ref, 1));
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 cix_ref = melem[e_ref].calcIdxRef;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 num_prolog_steps = calcidx[cix_ref].numPrologSteps;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 prolog_step_ref = calcidx[cix_ref].prologStepRef;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 * if this element is conditional, check the condition
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 if (calcidx[cix_ref].numCondCalcs NEQ 0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 AND ! ccd_conditionOK (e_ref, globs))
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 * if this element have a defined Prolog
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 * we have to process it before decoding the bitstream
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 if (num_prolog_steps)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 * Setup the offset into the C-structure for this element
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 globs->pstructOffs = melem[e_ref].structOffs;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 if (melem[e_ref].optional)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 /*
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 * for optional elements check the valid-flag in the C-struct.
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 * Spare elements does not have a corresponding valid flag.
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 */
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 if (globs->pstruct[globs->pstructOffs++] == FALSE)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 return 1;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 #ifdef DEBUG_CCD
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 else if (globs->pstruct [melem[e_ref].structOffs] != TRUE)
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 {
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 TRACE_CCD (globs, "Ambiguous value for valid flag!\n...assumed 1 for ccdID=%d",
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 e_ref);
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 #endif
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 bf_writeBitChunk (mvar[melem[e_ref].elemRef].bSize, globs);
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 return 1;
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 }
c41a534f33c6 src/gpf3: preened GPF goo from TCS3.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 #endif /* !RUN_INT_RAM */