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#! /usr/bin/perl
# gcc -save-temps -fomit-frame-pointer -Os -Wall -c jpg.c
# convert: .data -> .text
# ## add: .code16gcc
# convert: .local/.comm foo,bar,??? -> foo: .space bar,0
# remove: .size, .type, .align
# remove .section .note...
# remove .ident
# replace getword
sub fix_getword;
@f = (<>);
$getword = `cat getword`;
for (@f) {
undef $_ if /^\s*\.(size|align|p2align|text|section|ident|local|data|file)/;
$_ = "\n" if /^\s*\.type/;
if(/^\s*\.globl/) {
push @globl, "\t$_";
undef $_;
}
if(/^\s*\.comm\s+(\S+),(\d+),\d+\s*$/) {
push @comm, ( "\n", "$1:\n", "\t.space\t$2,0\n" );
undef $_;
}
}
unshift @globl, ( "\t.file\t\"jpeg.S\"\n", "\t.text\n",
# "\t\.code16gcc\n",
"\n"
);
fix_getword;
$_ = join '', @globl, @comm, @f; s/\n{3,}/\n\n/g; @f = split /\n/;
print "$_\n" for @f;
for (qw ( getword )) {
if($fixes{$_} != 1) {
print STDERR "error: fix failed: $_\n"
}
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sub fix_getword
{
for (@f) {
if(/^getword:/ .. /^\s*ret\b/) {
if(/^getword:/) {
$_ = $getword;
$fixes{getword}++;
}
else {
undef $_;
}
}
}
}
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