[164] | 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¨æѺL̳ÛØKèªC»ÌÜÜÌ`Å\[
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| 16 | # XR[hÉÜÜêÄ¢é±ÆD
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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¨æѺL
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| 22 | # ̳ÛØKèðfÚ·é±ÆD
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| 23 | # (3) {\tgEFAðC@íÉgÝÞÈÇC¼Ì\tgEFAJÉg
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| 24 | # pÅ«È¢`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¨æѺL̳ÛØKèðfÚ·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 | # ðÍÅ«È¢s
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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 | # ðÍÅ«È¢s
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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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