FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/c3_14pf.c @ 485:751f06541fbb
doc/Codec-utils: clarify lack of DHF in gsmfr-decode-rb
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 20 May 2024 01:47:22 +0000 |
parents | 5fc9a2d12048 |
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rev | line source |
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1 /* |
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2 ******************************************************************************** |
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3 * |
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4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 |
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5 * R99 Version 3.3.0 |
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6 * REL-4 Version 4.1.0 |
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7 * |
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8 ******************************************************************************** |
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9 * |
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10 * File : c3_14pf.c |
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11 * Purpose : Searches a 14 bit algebraic codebook containing 3 pulses |
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12 * in a frame of 40 samples. |
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13 * |
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14 ******************************************************************************** |
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15 */ |
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16 |
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17 /* |
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18 ******************************************************************************** |
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19 * MODULE INCLUDE FILE AND VERSION ID |
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20 ******************************************************************************** |
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21 */ |
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22 #include "namespace.h" |
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23 #include "c3_14pf.h" |
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24 |
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25 /* |
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26 ******************************************************************************** |
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27 * INCLUDE FILES |
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28 ******************************************************************************** |
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29 */ |
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30 #include "typedef.h" |
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31 #include "basic_op.h" |
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32 #include "no_count.h" |
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33 #include "inv_sqrt.h" |
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34 #include "cnst.h" |
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35 #include "cor_h.h" |
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36 #include "set_sign.h" |
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37 |
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38 /* |
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39 ******************************************************************************** |
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40 * LOCAL VARIABLES AND TABLES |
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41 ******************************************************************************** |
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42 */ |
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43 #define NB_PULSE 3 |
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44 |
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45 /* |
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46 ******************************************************************************** |
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47 * DECLARATION OF PROTOTYPES |
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48 ******************************************************************************** |
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49 */ |
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50 static void search_3i40( |
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51 Word16 dn[], /* i : correlation between target and h[] */ |
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52 Word16 dn2[], /* i : maximum of corr. in each track. */ |
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53 Word16 rr[][L_CODE],/* i : matrix of autocorrelation */ |
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54 Word16 codvec[] /* o : algebraic codebook vector */ |
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55 ); |
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56 |
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57 static Word16 build_code( |
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58 Word16 codvec[], /* i : algebraic codebook vector */ |
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59 Word16 dn_sign[], /* i : sign of dn[] */ |
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60 Word16 cod[], /* o : algebraic (fixed) codebook excitation */ |
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61 Word16 h[], /* i : impulse response of weighted synthesis filter */ |
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62 Word16 y[], /* o : filtered fixed codebook excitation */ |
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63 Word16 sign[] /* o : sign of 3 pulses */ |
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64 ); |
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65 |
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66 /* |
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67 ******************************************************************************** |
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68 * PUBLIC PROGRAM CODE |
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69 ******************************************************************************** |
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70 */ |
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71 /************************************************************************* |
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72 * |
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73 * FUNCTION: code_3i40_14bits() |
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74 * |
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75 * PURPOSE: Searches a 14 bit algebraic codebook containing 3 pulses |
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76 * in a frame of 40 samples. |
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77 * |
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78 * DESCRIPTION: |
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79 * The code length is 40, containing 3 nonzero pulses: i0...i2. |
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80 * All pulses can have two possible amplitudes: +1 or -1. |
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81 * Pulse i0 can have 8 possible positions, pulses i1 and i2 can have |
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82 * 2x8=16 positions. |
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83 * |
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84 * i0 : 0, 5, 10, 15, 20, 25, 30, 35. |
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85 * i1 : 1, 6, 11, 16, 21, 26, 31, 36. |
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86 * 3, 8, 13, 18, 23, 28, 33, 38. |
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87 * i2 : 2, 7, 12, 17, 22, 27, 32, 37. |
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88 * 4, 9, 14, 19, 24, 29, 34, 39. |
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89 * |
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90 *************************************************************************/ |
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91 |
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92 Word16 code_3i40_14bits( |
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93 Word16 x[], /* i : target vector */ |
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94 Word16 h[], /* i : impulse response of weighted synthesis filter */ |
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95 /* h[-L_subfr..-1] must be set to zero. */ |
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96 Word16 T0, /* i : Pitch lag */ |
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97 Word16 pitch_sharp, /* i : Last quantized pitch gain */ |
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98 Word16 code[], /* o : Innovative codebook */ |
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99 Word16 y[], /* o : filtered fixed codebook excitation */ |
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100 Word16 * sign /* o : Signs of 3 pulses */ |
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101 ) |
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102 { |
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103 Word16 codvec[NB_PULSE]; |
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104 Word16 dn[L_CODE], dn2[L_CODE], dn_sign[L_CODE]; |
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105 Word16 rr[L_CODE][L_CODE]; |
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106 Word16 i, index, sharp; |
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107 |
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108 sharp = shl(pitch_sharp, 1); |
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109 test (); |
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110 if (sub(T0, L_CODE) < 0) |
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111 { |
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112 for (i = T0; i < L_CODE; i++) { |
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113 h[i] = add(h[i], mult(h[i - T0], sharp)); move16 (); |
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114 } |
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115 } |
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116 |
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117 cor_h_x(h, x, dn, 1); |
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118 set_sign(dn, dn_sign, dn2, 6); |
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119 cor_h(h, dn_sign, rr); |
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120 search_3i40(dn, dn2, rr, codvec); |
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121 move16 (); /* function result */ |
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122 index = build_code(codvec, dn_sign, code, h, y, sign); |
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123 |
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124 /*-----------------------------------------------------------------* |
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125 * Compute innovation vector gain. * |
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126 * Include fixed-gain pitch contribution into code[]. * |
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127 *-----------------------------------------------------------------*/ |
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128 |
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129 test (); |
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130 if (sub(T0, L_CODE) < 0) |
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131 { |
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132 for (i = T0; i < L_CODE; i++) { |
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133 code[i] = add(code[i], mult(code[i - T0], sharp)); move16 (); |
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134 } |
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135 } |
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136 return index; |
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137 } |
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138 |
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139 /* |
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140 ******************************************************************************** |
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141 * PRIVATE PROGRAM CODE |
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142 ******************************************************************************** |
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143 */ |
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144 |
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145 /************************************************************************* |
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146 * |
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147 * FUNCTION search_3i40() |
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148 * |
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149 * PURPOSE: Search the best codevector; determine positions of the 3 pulses |
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150 * in the 40-sample frame. |
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151 * |
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152 *************************************************************************/ |
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153 |
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154 #define _1_2 (Word16)(32768L/2) |
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155 #define _1_4 (Word16)(32768L/4) |
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156 #define _1_8 (Word16)(32768L/8) |
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157 #define _1_16 (Word16)(32768L/16) |
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158 |
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159 static void search_3i40( |
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160 Word16 dn[], /* i : correlation between target and h[] */ |
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161 Word16 dn2[], /* i : maximum of corr. in each track. */ |
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162 Word16 rr[][L_CODE], /* i : matrix of autocorrelation */ |
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163 Word16 codvec[] /* o : algebraic codebook vector */ |
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164 ) |
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165 { |
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166 Word16 i0, i1, i2; |
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167 Word16 ix = 0; /* initialization only needed to keep gcc silent */ |
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168 Word16 ps = 0; /* initialization only needed to keep gcc silent */ |
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169 Word16 i, pos, track1, track2, ipos[NB_PULSE]; |
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170 Word16 psk, ps0, ps1, sq, sq1; |
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171 Word16 alpk, alp, alp_16; |
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172 Word32 s, alp0, alp1; |
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173 |
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174 psk = -1; move16 (); |
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175 alpk = 1; move16 (); |
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176 for (i = 0; i < NB_PULSE; i++) |
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177 { |
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178 codvec[i] = i; move16 (); |
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179 } |
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180 |
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181 for (track1 = 1; track1 < 4; track1 += 2) |
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182 { |
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183 for (track2 = 2; track2 < 5; track2 += 2) |
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184 { |
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185 /* fix starting position */ |
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186 |
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187 ipos[0] = 0; move16 (); |
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188 ipos[1] = track1; move16 (); |
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189 ipos[2] = track2; move16 (); |
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190 |
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191 /*------------------------------------------------------------------* |
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192 * main loop: try 3 tracks. * |
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193 *------------------------------------------------------------------*/ |
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194 |
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195 for (i = 0; i < NB_PULSE; i++) |
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196 { |
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197 /*----------------------------------------------------------------* |
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198 * i0 loop: try 8 positions. * |
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199 *----------------------------------------------------------------*/ |
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200 |
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201 move16 (); /* account for ptr. init. (rr[io]) */ |
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202 for (i0 = ipos[0]; i0 < L_CODE; i0 += STEP) |
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203 { |
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204 test (); |
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205 if (dn2[i0] >= 0) |
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206 { |
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207 ps0 = dn[i0]; move16 (); |
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208 alp0 = L_mult(rr[i0][i0], _1_4); |
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209 |
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210 /*----------------------------------------------------------------* |
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211 * i1 loop: 8 positions. * |
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212 *----------------------------------------------------------------*/ |
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213 |
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214 sq = -1; move16 (); |
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215 alp = 1; move16 (); |
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216 ps = 0; move16 (); |
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217 ix = ipos[1]; move16 (); |
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218 |
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219 /* initialize 4 index for next loop. */ |
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220 /*-------------------------------------------------------------------* |
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221 * These index have low complexity address computation because * |
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222 * they are, in fact, pointers with fixed increment. For example, * |
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223 * "rr[i0][i2]" is a pointer initialized to "&rr[i0][ipos[2]]" * |
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224 * and incremented by "STEP". * |
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225 *-------------------------------------------------------------------*/ |
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226 |
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227 move16 (); /* account for ptr. init. (rr[i1]) */ |
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228 move16 (); /* account for ptr. init. (dn[i1]) */ |
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229 move16 (); /* account for ptr. init. (rr[io]) */ |
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230 for (i1 = ipos[1]; i1 < L_CODE; i1 += STEP) |
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231 { |
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232 ps1 = add(ps0, dn[i1]); /* idx increment = STEP */ |
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233 |
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234 /* alp1 = alp0 + rr[i0][i1] + 1/2*rr[i1][i1]; */ |
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235 |
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236 alp1 = L_mac(alp0, rr[i1][i1], _1_4); /* idx incr = STEP */ |
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237 alp1 = L_mac(alp1, rr[i0][i1], _1_2); /* idx incr = STEP */ |
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238 |
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239 sq1 = mult(ps1, ps1); |
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240 |
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241 alp_16 = round(alp1); |
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242 |
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243 s = L_msu(L_mult(alp, sq1), sq, alp_16); |
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244 |
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245 test (); |
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246 if (s > 0) |
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247 { |
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248 sq = sq1; move16 (); |
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249 ps = ps1; move16 (); |
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250 alp = alp_16; move16 (); |
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251 ix = i1; move16 (); |
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252 } |
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253 } |
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254 i1 = ix; move16 (); |
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255 |
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256 /*----------------------------------------------------------------* |
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257 * i2 loop: 8 positions. * |
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258 *----------------------------------------------------------------*/ |
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259 |
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260 ps0 = ps; move16 (); |
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261 alp0 = L_mult(alp, _1_4); |
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262 |
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263 sq = -1; move16 (); |
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264 alp = 1; move16 (); |
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265 ps = 0; move16 (); |
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266 ix = ipos[2]; move16 (); |
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267 |
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268 /* initialize 4 index for next loop (see i1 loop) */ |
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269 |
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270 move16 (); /* account for ptr. init. (rr[i2]) */ |
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271 move16 (); /* account for ptr. init. (rr[i1]) */ |
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272 move16 (); /* account for ptr. init. (dn[i2]) */ |
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273 move16 (); /* account for ptr. init. (rr[io]) */ |
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274 for (i2 = ipos[2]; i2 < L_CODE; i2 += STEP) |
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275 { |
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276 ps1 = add(ps0, dn[i2]); /* index increment = STEP */ |
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277 |
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278 /* alp1 = alp0 + rr[i0][i2] + rr[i1][i2] + 1/2*rr[i2][i2]; */ |
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279 |
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Mychaela Falconia <falcon@freecalypso.org>
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280 alp1 = L_mac(alp0, rr[i2][i2], _1_16); /* idx incr = STEP */ |
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281 alp1 = L_mac(alp1, rr[i1][i2], _1_8); /* idx incr = STEP */ |
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282 alp1 = L_mac(alp1, rr[i0][i2], _1_8); /* idx incr = STEP */ |
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283 |
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Mychaela Falconia <falcon@freecalypso.org>
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284 sq1 = mult(ps1, ps1); |
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285 |
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Mychaela Falconia <falcon@freecalypso.org>
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286 alp_16 = round(alp1); |
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libtwamr: integrate c3_14pf.c
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287 |
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Mychaela Falconia <falcon@freecalypso.org>
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288 s = L_msu(L_mult(alp, sq1), sq, alp_16); |
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289 |
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Mychaela Falconia <falcon@freecalypso.org>
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290 test (); |
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291 if (s > 0) |
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Mychaela Falconia <falcon@freecalypso.org>
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292 { |
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Mychaela Falconia <falcon@freecalypso.org>
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293 sq = sq1; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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294 ps = ps1; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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295 alp = alp_16; move16 (); |
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libtwamr: integrate c3_14pf.c
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296 ix = i2; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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297 } |
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Mychaela Falconia <falcon@freecalypso.org>
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298 } |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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299 i2 = ix; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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300 |
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Mychaela Falconia <falcon@freecalypso.org>
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301 /*----------------------------------------------------------------* |
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302 * memorise codevector if this one is better than the last one. * |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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303 *----------------------------------------------------------------*/ |
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Mychaela Falconia <falcon@freecalypso.org>
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|
304 |
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Mychaela Falconia <falcon@freecalypso.org>
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305 s = L_msu(L_mult(alpk, sq), psk, alp); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
306 |
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Mychaela Falconia <falcon@freecalypso.org>
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|
307 test (); |
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Mychaela Falconia <falcon@freecalypso.org>
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|
308 if (s > 0) |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
309 { |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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310 psk = sq; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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311 alpk = alp; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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312 codvec[0] = i0; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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313 codvec[1] = i1; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
314 codvec[2] = i2; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
315 } |
5fc9a2d12048
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Mychaela Falconia <falcon@freecalypso.org>
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|
316 } |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
317 } |
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Mychaela Falconia <falcon@freecalypso.org>
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|
318 /*----------------------------------------------------------------* |
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Mychaela Falconia <falcon@freecalypso.org>
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319 * Cyclic permutation of i0, i1 and i2. * |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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320 *----------------------------------------------------------------*/ |
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Mychaela Falconia <falcon@freecalypso.org>
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|
321 |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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322 pos = ipos[2]; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
323 ipos[2] = ipos[1]; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
324 ipos[1] = ipos[0]; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
325 ipos[0] = pos; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
326 } |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
327 } |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
328 } |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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329 return; |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
330 } |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
331 |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
332 /************************************************************************* |
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Mychaela Falconia <falcon@freecalypso.org>
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|
333 * |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
334 * FUNCTION: build_code() |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
335 * |
5fc9a2d12048
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Mychaela Falconia <falcon@freecalypso.org>
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|
336 * PURPOSE: Builds the codeword, the filtered codeword and index of the |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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337 * codevector, based on the signs and positions of 3 pulses. |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
338 * |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
339 *************************************************************************/ |
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Mychaela Falconia <falcon@freecalypso.org>
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|
340 |
5fc9a2d12048
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Mychaela Falconia <falcon@freecalypso.org>
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|
341 static Word16 |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
342 build_code( |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
343 Word16 codvec[], /* i : position of pulses */ |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
344 Word16 dn_sign[], /* i : sign of pulses */ |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
345 Word16 cod[], /* o : innovative code vector */ |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
346 Word16 h[], /* i : impulse response of weighted synthesis filter */ |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
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|
347 Word16 y[], /* o : filtered innovative code */ |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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348 Word16 sign[] /* o : sign of 3 pulses */ |
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349 ) |
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350 { |
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351 Word16 i, j, k, track, index, _sign[NB_PULSE], indx, rsign; |
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352 Word16 *p0, *p1, *p2; |
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353 Word32 s; |
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354 |
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355 for (i = 0; i < L_CODE; i++) { |
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356 cod[i] = 0; move16 (); |
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357 } |
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358 |
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359 indx = 0; move16 (); |
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360 rsign = 0; move16 (); |
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361 for (k = 0; k < NB_PULSE; k++) |
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362 { |
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363 i = codvec[k]; move16 (); /* read pulse position */ |
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364 j = dn_sign[i]; move16 (); /* read sign */ |
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libtwamr: integrate c3_14pf.c
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365 |
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366 index = mult(i, 6554); /* index = pos/5 */ |
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367 /* track = pos%5 */ |
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368 track = sub(i, extract_l(L_shr(L_mult(index, 5), 1))); |
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369 |
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libtwamr: integrate c3_14pf.c
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370 test (); |
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371 if (sub(track, 1) == 0) |
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libtwamr: integrate c3_14pf.c
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372 index = shl(index, 4); |
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373 else if (sub(track, 2) == 0) |
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libtwamr: integrate c3_14pf.c
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374 { |
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375 test (); |
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376 track = 2; move16 (); |
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libtwamr: integrate c3_14pf.c
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377 index = shl(index, 8); |
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libtwamr: integrate c3_14pf.c
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378 } |
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libtwamr: integrate c3_14pf.c
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379 else if (sub(track, 3) == 0) |
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libtwamr: integrate c3_14pf.c
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380 { |
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381 test (); test (); |
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libtwamr: integrate c3_14pf.c
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382 track = 1; move16 (); |
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libtwamr: integrate c3_14pf.c
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383 index = add(shl(index, 4), 8); |
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libtwamr: integrate c3_14pf.c
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384 } |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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385 else if (sub(track, 4) == 0) |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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386 { |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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387 test (); test (); test (); |
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libtwamr: integrate c3_14pf.c
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parents:
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388 track = 2; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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389 index = add(shl(index, 8), 128); |
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libtwamr: integrate c3_14pf.c
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parents:
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390 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
391 |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
392 test (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
393 if (j > 0) |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
394 { |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
395 cod[i] = 8191; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
396 _sign[k] = 32767; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
397 rsign = add(rsign, shl(1, track)); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
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398 } else { |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
399 cod[i] = -8192; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
400 _sign[k] = (Word16) - 32768L; move16 (); |
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libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
401 } |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
402 |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
403 indx = add(indx, index); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
404 } |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
405 *sign = rsign; move16 (); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
406 |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
407 p0 = h - codvec[0]; move16 (); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
408 p1 = h - codvec[1]; move16 (); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
409 p2 = h - codvec[2]; move16 (); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
410 |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
411 for (i = 0; i < L_CODE; i++) |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
412 { |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
413 s = 0; move32 (); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
414 s = L_mac(s, *p0++, _sign[0]); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
415 s = L_mac(s, *p1++, _sign[1]); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
416 s = L_mac(s, *p2++, _sign[2]); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
417 y[i] = round(s); move16 (); |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
418 } |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
419 |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
420 return indx; |
5fc9a2d12048
libtwamr: integrate c3_14pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
421 } |