1 | #! /usr/bin/perl
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2 | #
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3 | # TOPPERS Software
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4 | # Toyohashi Open Platform for Embedded Real-Time Systems
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5 | #
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6 | # Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
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7 | # Toyohashi Univ. of Technology, JAPAN
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8 | # Copyright (C) 2004-2011 by Embedded and Real-Time Systems Laboratory
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9 | # Graduate School of Information Science, Nagoya Univ., JAPAN
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10 | #
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11 | # ãLì ÒÍCȺÌ(1)`(4)Ìðð½·êÉÀèC{\tgEF
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12 | # Ai{\tgEFAðüϵ½àÌðÜÞDȺ¯¶jðgpE¡»Eü
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13 | # ÏEÄzziȺCpÆÄÔj·é±Æð³Åø·éD
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14 | # (1) {\tgEFAð\[XR[hÌ`Åp·éêÉÍCãLÌì
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15 | # \¦C±Ìpð¨æÑºLÌ³ÛØKèªC»ÌÜÜÌ`Å\[
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16 | # XR[hÉÜÜêĢ鱯D
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17 | # (2) {\tgEFAðCCu`®ÈÇC¼Ì\tgEFAJÉg
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18 | # pÅ«é`ÅÄzz·éêÉÍCÄzzɺ¤hL
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19 | gip
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20 | # Ò}j
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21 | AÈÇjÉCãLÌì \¦C±Ìpð¨æÑºL
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22 | # Ì³ÛØKèðfÚ·é±ÆD
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23 | # (3) {\tgEFAðC@íÉgÝÞÈÇC¼Ì\tgEFAJÉg
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24 | # pūȢ`ÅÄzz·éêÉÍCÌ¢¸ê©Ìðð½·±
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25 | # ÆD
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26 | # (a) Äzzɺ¤hL
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27 | gipÒ}j
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28 | AÈÇjÉCãLÌ
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29 | # ì \¦C±Ìpð¨æÑºLÌ³ÛØKèðfÚ·é±ÆD
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30 | # (b) ÄzzÌ`ÔðCÊÉèßéû@ÉæÁÄCTOPPERSvWFNgÉ
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31 | # ñ·é±ÆD
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32 | # (4) {\tgEFAÌpÉæè¼ÚIܽÍÔÚIɶ¶é¢©Èé¹
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33 | # Q©çàCãLì Ò¨æÑTOPPERSvWFNgðÆÓ·é±ÆD
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34 | # ܽC{\tgEFAÌ[UܽÍGh[U©çÌ¢©Èé
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35 | # RÉîÿ©çàCãLì Ò¨æÑTOPPERSvWFNgð
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36 | # ÆÓ·é±ÆD
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37 | #
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38 | # {\tgEFAÍC³ÛØÅñ³êÄ¢éàÌÅ éDãLì Ò¨
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39 | # æÑTOPPERSvWFNgÍC{\tgEFAÉÖµÄCÁèÌgpÚI
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40 | # ÉηéK«àÜßÄC¢©ÈéÛØàsíÈ¢DܽC{\tgEF
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41 | # AÌpÉæè¼ÚIܽÍÔÚIɶ¶½¢©Èé¹QÉÖµÄàC»
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42 | # ÌÓCðíÈ¢D
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43 | #
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44 | # @(#) $Id: genoffset 1840 2010-07-10 17:29:42Z ertl-hiro $
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45 | #
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46 |
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47 | #
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48 | # ú»
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49 | #
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50 | $infile = $ARGV[0];
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51 | $sil_endian = "";
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52 |
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53 | #
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54 | # ðßÅ«éfBNeBuÌe[u
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55 | #
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56 | %directives = (
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57 | "long", "",
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58 | "dword", "",
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59 | "word", "",
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60 | "hword", "",
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61 | "int", "",
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62 | "short", "",
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63 | "half", "",
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64 | "byte", "",
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65 | "value", "",
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66 | "uaword", "",
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67 | "uashort", "",
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68 | "data32", 4,
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69 | "data16", 2,
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70 | "data8", 1,
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71 | "zero", -1,
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72 | "space", -1,
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73 | "globl", 0,
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74 | "global", 0,
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75 | "align", 0,
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76 | "p2align", 0,
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77 | "even", 0,
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78 | "data", 0,
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79 | "stabs", 0,
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80 | "type", 0,
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81 | "size", 0,
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82 | "section", 0,
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83 | "sdata", 0,
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84 | "code", 0,
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85 | );
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86 |
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87 | #
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88 | # ItZbglÌoÍ
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89 | #
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90 | sub parse_offset {
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91 | my($label, $val) = @_;
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92 |
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93 | printf "#define %s\t%d\n",$label,$val;
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94 | }
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95 |
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96 | #
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97 | # fBNeBuÌÇÝæè
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98 | #
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99 | sub ref_bit {
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100 | my($size) = @_;
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101 | my($dir, $directive);
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102 |
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103 | while ($line = <INFILE>) {
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104 | chomp $line;
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105 | next if ($line =~ /^[ \t]*[#;].*$/);
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106 |
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107 | if ($line =~ /[ \t]*\.([a-zA-Z0-9]+)[ \t]*([^ \t]*)[ \t]*/
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108 | && defined($dir = $directives{$1})) {
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109 | $directive = $1;
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110 | if ($dir eq "") {
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111 | # o^·×«fBNeBu
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112 | $directives{$directive} = $size;
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113 | }
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114 | last;
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115 | }
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116 | else {
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117 | # ðÍūȢs
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118 | print STDERR "genoffset: cannot parse: $line\n";
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119 | $error = 1;
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120 | }
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121 | }
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122 | }
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123 |
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124 | #
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125 | # rbgT[`
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126 | #
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127 | sub search_bit {
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128 | my($val) = @_;
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129 | my($val_bit);
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130 |
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131 | return(-1) if ($val == 0);
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132 |
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133 | $val_bit = 0;
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134 | while (($val & 1) == 0) {
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135 | $val >>= 1;
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136 | $val_bit++;
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137 | }
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138 | return($val_bit);
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139 | }
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140 |
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141 | #
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142 | # rbgÊuÌoÍ
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143 | #
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144 | sub parse_bit {
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145 | my($endian, $size, $label) = @_;
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146 | my($offset, $dir, $val, $val_bit);
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147 |
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148 | if ($sil_endian && $endian ne $sil_endian) {
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149 | # GfBAÌsêv
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150 | print STDERR "genoffset: endian mismatch: $line\n";
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151 | $error = 1;
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152 | }
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153 |
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154 | $offset = 0;
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155 | while ($line = <INFILE>) {
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156 | chomp $line;
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157 | next if ($line =~ /^[ \t]*[#;].*$/);
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158 |
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159 | if ($line =~ /[ \t]*\.([a-zA-Z0-9]+)[ \t]*([^ \t]*)[ \t]*/
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160 | && defined($dir = $directives{$1})) {
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161 | $val = $2;
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162 |
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163 | # 16iÆ8iÌlÖÌÏ·
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164 | if ($val =~ /^0x(.+)$/) {
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165 | $val = hex($1);
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166 | }
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167 | elsif ($val =~ /^0(.+)$/) {
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168 | $val = oct($1);
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169 | }
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170 |
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171 | if ($dir eq "") {
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172 | # TCYðmçÈ¢fBNeBu
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173 | print STDERR "genoffset: unknown directive: $line\n";
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174 | $error = 1;
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175 | }
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176 | elsif ($dir == 0) {
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177 | # ÇÝòη׫fBNeBu
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178 | }
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179 | elsif ($dir == -1) {
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180 | # .zerofBNeBuÌ
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181 | $offset += $val;
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182 | }
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183 | elsif ($val == 0) {
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184 | # lª0ÌtB[hÌ
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185 | $offset += $dir;
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186 | }
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187 | else {
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188 | # lª0ÅÈ¢tB[hª©Â©êÎ[vðI¹
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189 | last;
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190 | }
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191 | }
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192 | else {
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193 | # ðÍūȢs
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194 | print STDERR "genoffset: cannot parse: $line\n";
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195 | $error = 1;
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196 | }
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197 | }
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198 |
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199 | # rbgÊuðT·
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200 | $val_bit = search_bit($val);
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201 |
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202 | # oCgPÊÉ·Z·é
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203 | if ($endian eq "B") {
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204 | $offset += $dir - 1;
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205 | $offset -= $val_bit >> 3;
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206 | }
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207 | else {
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208 | $offset += $val_bit >> 3;
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209 | }
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210 | $val_bit &= 0x07;
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211 |
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212 | # oÍPÊÉ·Z·é
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213 | if ($size eq "W") {
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214 | if ($endian eq "B") {
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215 | $val_bit += 24;
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216 | $val_bit -= ($offset & 0x03) << 3;
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217 | }
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218 | else {
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219 | $val_bit += ($offset & 0x03) << 3;
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220 | }
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221 | $offset &= ~0x03;
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222 | }
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223 | elsif ($size eq "H") {
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224 | if ($endian eq "B") {
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225 | $val_bit += 8;
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226 | $val_bit -= ($offset & 0x01) << 3;
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227 | }
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228 | else {
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229 | $val_bit += ($offset & 0x01) << 3;
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230 | }
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231 | $offset &= ~0x01;
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232 | }
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233 |
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234 | # è`ÌoÍ
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235 | $label =~ s/^_//;
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236 | printf "#define %s\t%d\n",$label,$offset;
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237 | printf "#define %s_bit\t%d\n",$label,$val_bit;
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238 | printf "#define %s_mask\t0x%x\n",$label,(1 << $val_bit);
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239 | }
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240 |
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241 | #
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242 | # C[`
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243 | #
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244 | print "/* This file is generated by genoffset. */\n";
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245 | print "\n";
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246 |
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247 | $error = 0;
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248 | open(INFILE, $infile) || die "Cannot open $infile";
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249 | while ($line = <INFILE>) {
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250 | chomp $line;
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251 |
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252 | if ($line =~ /^[ \t]*OFFSET_DEF ([^ \t]+) = [#\$]?([^ \t]+)/) {
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253 | parse_offset($1, $2);
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254 | }
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255 | elsif ($line =~ /^[ \t]*_?BIT_REF_([0-9]+):/) {
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256 | ref_bit($1);
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257 | }
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258 | elsif ($line =~ /^[ \t]*SIL_ENDIAN = ([BL])/) {
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259 | $sil_endian = $1;
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260 | }
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261 | }
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262 | #
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263 | # RpCªO[oÏÌzuðÏX·éÆCBIT_REF_?ªºÉÈ
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264 | # éÂ\«ª é½ßCª©çÇݼ·D
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265 | #
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266 | seek(INFILE, 0, SEEK_SET);
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267 | while ($line = <INFILE>) {
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268 | chomp $line;
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269 |
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270 | if ($line =~ /^[ \t]*_?BIT_([BL])([BHW])_([^ \t]+):/) {
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271 | parse_bit($1, $2, $3);
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272 | }
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273 | }
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274 | close(INFILE);
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275 | exit($error);
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