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46 lines
799 B
Perl
Executable File
46 lines
799 B
Perl
Executable File
#!/usr/bin/perl -w
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# $FreeBSD$
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use strict;
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if (!defined($ARGV[0])) {
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print(
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"
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Perl script to convert NCR script address into label+offset.
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Useful to find the failed NCR instruction ...
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usage: $0 <address>
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");
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exit(1);
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}
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my $errpos = hex($ARGV[0])/4;
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my $ofs=0;
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open (INPUT, "cc -E ncr.c 2>/dev/null |");
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while ($_ = <INPUT>)
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{
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last if /^struct script \{/;
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}
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while ($_ = <INPUT>)
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{
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last if /^\}\;/;
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my ($label, $size) = /ncrcmd\s+(\S+)\s+\[([^]]+)/;
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$size = eval($size);
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if (defined($label) && $label) {
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if ($errpos) {
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if ($ofs + $size > $errpos) {
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printf ("%4x: %s\n", $ofs * 4, $label);
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printf ("%4x: %s + %d\n", $errpos * 4, $label, $errpos - $ofs);
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last;
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}
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$ofs += $size;
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} else {
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printf ("%4x: %s\n", $ofs * 4, $label);
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}
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}
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}
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