#!/usr/local/bin/perl
-package x86ms;
+package x86unix;
$label="L000";
+$const="";
$align=($main'aout)?"4":"16";
$under=($main'aout)?"_":"";
$com_start=($main'sol)?"/":"#";
+sub main'asm_init_output { @out=(); }
+sub main'asm_get_output { return(@out); }
+sub main'get_labels { return(@labels); }
+sub main'external_label { push(@labels,@_); }
+
if ($main'cpp)
{
$align="ALIGN";
'esp', '%esp',
);
+%reg_val=(
+ 'eax', 0x00,
+ 'ebx', 0x03,
+ 'ecx', 0x01,
+ 'edx', 0x02,
+ 'esi', 0x06,
+ 'edi', 0x07,
+ 'ebp', 0x05,
+ 'esp', 0x04,
+ );
+
sub main'LB
{
(defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";
{
local($addr,$reg1,$reg2,$idx)=@_;
-
$ret="";
-
$addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
-
$reg1="$regs{$reg1}" if defined($regs{$reg1});
$reg2="$regs{$reg2}" if defined($regs{$reg2});
$ret.=$addr if ($addr ne "") && ($addr ne 0);
if ($reg2 ne "")
{
- $ret.="($reg1,$reg2,$idx)";
- }
+ if($idx ne "")
+ { $ret.="($reg1,$reg2,$idx)"; }
+ else
+ { $ret.="($reg1,$reg2)"; }
+ }
else
- {
- $ret.="($reg1)"
- }
+ { $ret.="($reg1)" }
return($ret);
}
sub main'BP
{
- local($addr,$reg1,$reg2,$idx)=@_;
-
-
- $ret="";
+ return(&main'DWP(@_));
+ }
- $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
+sub main'BC
+ {
+ return @_;
+ }
- $reg1="$regs{$reg1}" if defined($regs{$reg1});
- $reg2="$regs{$reg2}" if defined($regs{$reg2});
- $ret.=$addr if ($addr ne "") && ($addr ne 0);
- if ($reg2 ne "")
- {
- $ret.="($reg1,$reg2,$idx)";
- }
- else
- {
- $ret.="($reg1)"
- }
- return($ret);
+sub main'DWC
+ {
+ return @_;
}
+#sub main'BP
+# {
+# local($addr,$reg1,$reg2,$idx)=@_;
+#
+# $ret="";
+#
+# $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
+# $reg1="$regs{$reg1}" if defined($regs{$reg1});
+# $reg2="$regs{$reg2}" if defined($regs{$reg2});
+# $ret.=$addr if ($addr ne "") && ($addr ne 0);
+# if ($reg2 ne "")
+# { $ret.="($reg1,$reg2,$idx)"; }
+# else
+# { $ret.="($reg1)" }
+# return($ret);
+# }
+
sub main'mov { &out2("movl",@_); }
sub main'movb { &out2("movb",@_); }
sub main'and { &out2("andl",@_); }
sub main'shl { &out2("sall",@_); }
sub main'shr { &out2("shrl",@_); }
sub main'xor { &out2("xorl",@_); }
+sub main'xorb { &out2("xorb",@_); }
sub main'add { &out2("addl",@_); }
+sub main'adc { &out2("adcl",@_); }
sub main'sub { &out2("subl",@_); }
sub main'rotl { &out2("roll",@_); }
sub main'rotr { &out2("rorl",@_); }
sub main'exch { &out2("xchg",@_); }
sub main'cmp { &out2("cmpl",@_); }
+sub main'lea { &out2("leal",@_); }
+sub main'mul { &out1("mull",@_); }
+sub main'div { &out1("divl",@_); }
sub main'jmp { &out1("jmp",@_); }
+sub main'jmp_ptr { &out1p("jmp",@_); }
sub main'je { &out1("je",@_); }
+sub main'jle { &out1("jle",@_); }
sub main'jne { &out1("jne",@_); }
sub main'jnz { &out1("jnz",@_); }
sub main'jz { &out1("jz",@_); }
+sub main'jge { &out1("jge",@_); }
+sub main'jl { &out1("jl",@_); }
+sub main'jb { &out1("jb",@_); }
+sub main'jc { &out1("jc",@_); }
+sub main'jnc { &out1("jnc",@_); }
+sub main'jno { &out1("jno",@_); }
sub main'dec { &out1("decl",@_); }
-sub main'push { &out1("pushl",@_); }
+sub main'inc { &out1("incl",@_); }
+sub main'push { &out1("pushl",@_); $stack+=4; }
+sub main'pop { &out1("popl",@_); $stack-=4; }
+sub main'not { &out1("notl",@_); }
sub main'call { &out1("call",$under.$_[0]); }
+sub main'ret { &out0("ret"); }
+sub main'nop { &out0("nop"); }
+# The bswapl instruction is new for the 486. Emulate if i386.
+sub main'bswap
+ {
+ if ($main'i386)
+ {
+ &main'comment("bswapl @_");
+ &main'exch(main'HB(@_),main'LB(@_));
+ &main'rotr(@_,16);
+ &main'exch(main'HB(@_),main'LB(@_));
+ }
+ else
+ {
+ &out1("bswapl",@_);
+ }
+ }
sub out2
{
local($name,$p1,$p2)=@_;
local($l,$ll,$t);
+ local(%special)=( "roll",0xD1C0,"rorl",0xD1C8,
+ "rcll",0xD1D0,"rcrl",0xD1D8,
+ "shll",0xD1E0,"shrl",0xD1E8,
+ "sarl",0xD1F8);
+
+ if ((defined($special{$name})) && defined($regs{$p1}) && ($p2 == 1))
+ {
+ $op=$special{$name}|$reg_val{$p1};
+ $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
+ $tmp2=sprintf(".byte %d\t",$op &0xff);
+ push(@out,$tmp1);
+ push(@out,$tmp2);
+
+ $p2=&conv($p2);
+ $p1=&conv($p1);
+ &main'comment("$name $p2 $p1");
+ return;
+ }
- print "\t$name\t";
+ push(@out,"\t$name\t");
$t=&conv($p2).",";
$l=length($t);
- print $t;
+ push(@out,$t);
$ll=4-($l+9)/8;
- print "\t" x $ll;
- print &conv($p1);
- print "\n";
+ $tmp1=sprintf("\t" x $ll);
+ push(@out,$tmp1);
+ push(@out,&conv($p1)."\n");
}
sub out1
{
local($name,$p1)=@_;
local($l,$t);
+ local(%special)=("bswapl",0x0FC8);
+
+ if ((defined($special{$name})) && defined($regs{$p1}))
+ {
+ $op=$special{$name}|$reg_val{$p1};
+ $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
+ $tmp2=sprintf(".byte %d\t",$op &0xff);
+ push(@out,$tmp1);
+ push(@out,$tmp2);
+
+ $p2=&conv($p2);
+ $p1=&conv($p1);
+ &main'comment("$name $p2 $p1");
+ return;
+ }
- print "\t$name\t";
- print &conv($p1);
- print "\n";
+ push(@out,"\t$name\t".&conv($p1)."\n");
+ }
+
+sub out1p
+ {
+ local($name,$p1)=@_;
+ local($l,$t);
+
+ push(@out,"\t$name\t*".&conv($p1)."\n");
+ }
+
+sub out0
+ {
+ push(@out,"\t$_[0]\n");
}
sub conv
$p=$regs{$p} if (defined($regs{$p}));
- $p =~ s/^([0-9A-Fa-f]+)$/\$$1/;
+ $p =~ s/^(-{0,1}[0-9A-Fa-f]+)$/\$$1/;
$p =~ s/^(0x[0-9A-Fa-f]+)$/\$$1/;
return $p;
}
{
local($file)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
.file "$file.s"
.version "01.01"
gcc2_compiled.:
EOF
+ push(@out,$tmp);
}
sub main'function_begin
{
- local($func,$num)=@_;
-
- $params=$num*4;
+ local($func)=@_;
+ &main'external_label($func);
$func=$under.$func;
- print <<"EOF";
+ local($tmp)=<<"EOF";
.text
.align $align
.globl $func
EOF
+ push(@out,$tmp);
if ($main'cpp)
- { printf("\tTYPE($func,\@function)\n"); }
- else { printf("\t.type $func,\@function\n"); }
- print <<"EOF";
-$func:
+ { $tmp=push(@out,"\tTYPE($func,\@function)\n"); }
+ elsif ($main'gaswin)
+ { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
+ else { $tmp=push(@out,"\t.type\t$func,\@function\n"); }
+ push(@out,"$func:\n");
+ $tmp=<<"EOF";
pushl %ebp
pushl %ebx
pushl %esi
pushl %edi
EOF
+ push(@out,$tmp);
$stack=20;
}
+sub main'function_begin_B
+ {
+ local($func,$extra)=@_;
+
+ &main'external_label($func);
+ $func=$under.$func;
+
+ local($tmp)=<<"EOF";
+.text
+ .align $align
+.globl $func
+EOF
+ push(@out,$tmp);
+ if ($main'cpp)
+ { push(@out,"\tTYPE($func,\@function)\n"); }
+ elsif ($main'gaswin)
+ { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
+ else { push(@out,"\t.type $func,\@function\n"); }
+ push(@out,"$func:\n");
+ $stack=4;
+ }
+
sub main'function_end
{
local($func)=@_;
$func=$under.$func;
- print <<"EOF";
+ local($tmp)=<<"EOF";
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
+$const
.${func}_end:
EOF
+ push(@out,$tmp);
+ $const="";
+
if ($main'cpp)
- { printf("\tSIZE($func,.${func}_end-$func)\n"); }
- else { printf("\t.size\t$func,.${func}_end-$func\n"); }
- print ".ident \"desasm.pl\"\n";
+ { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); }
+ elsif ($main'gaswin)
+ { $tmp=push(@out,"\t.align 4\n"); }
+ else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); }
+ push(@out,".ident \"$func\"\n");
$stack=0;
%label=();
}
{
local($func)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
EOF
+ push(@out,$tmp);
}
sub main'function_end_B
$func=$under.$func;
- print <<"EOF";
-.${func}_end:
-EOF
+ push(@out,".L_${func}_end:\n");
if ($main'cpp)
- { printf("\tSIZE($func,.${func}_end-$func)\n"); }
- else { printf("\t.size\t$func,.${func}_end-$func\n"); }
- print ".ident \"desasm.pl\"\n";
+ { push(@out,"\tSIZE($func,.L_${func}_end-$func)\n"); }
+ elsif ($main'gaswin)
+ { push(@out,"\t.align 4\n"); }
+ else { push(@out,"\t.size\t$func,.L_${func}_end-$func\n"); }
+ push(@out,".ident \"desasm.pl\"\n");
$stack=0;
%label=();
}
return(&main'DWP($stack+$num*4,"esp","",0));
}
-sub main'wtmp_b
+sub main'stack_push
{
- local($num,$b)=@_;
-
- return(&main'BP(-(($num+1)*4)+$b,"esp","",0));
+ local($num)=@_;
+ $stack+=$num*4;
+ &main'sub("esp",$num*4);
}
-sub main'wtmp
+sub main'stack_pop
{
local($num)=@_;
+ $stack-=$num*4;
+ &main'add("esp",$num*4);
+ }
- return(&main'DWP(-($num+1)*4,"esp","",0));
+sub main'swtmp
+ {
+ return(&main'DWP($_[0]*4,"esp","",0));
}
+# Should use swtmp, which is above esp. Linix can trash the stack above esp
+#sub main'wtmp
+# {
+# local($num)=@_;
+#
+# return(&main'DWP(-($num+1)*4,"esp","",0));
+# }
+
sub main'comment
{
foreach (@_)
{
if (/^\s*$/)
- { print "\n"; }
+ { push(@out,"\n"); }
else
- { print "\t$com_start $_ $com_end\n"; }
+ { push(@out,"\t$com_start $_ $com_end\n"); }
}
}
$label{$_[0]}=".${label}${_[0]}";
$label++;
}
- print ".align $align\n";
- print "$label{$_[0]}:\n";
+ push(@out,".align $align\n") if ($_[1] != 0);
+ push(@out,"$label{$_[0]}:\n");
}
sub main'file_end
{
}
+
+sub main'data_word
+ {
+ push(@out,"\t.long $_[0]\n");
+ }
+
+sub main'puts
+ {
+ $constl++;
+ &main'push('$Lstring' . $constl);
+ &main'call('puts');
+ &main'add("esp",4);
+
+ $const .= "Lstring$constl:\n\t.string \"@_[0]\"\n";
+ }
+
+sub main'putx
+ {
+ $constl++;
+ &main'push($_[0]);
+ &main'push('$Lstring' . $constl);
+ &main'call('printf');
+ &main'add("esp",8);
+
+ $const .= "Lstring$constl:\n\t.string \"\%X\"\n";
+ }
projects / openssl.git / blobdiff