diff options
Diffstat (limited to 'crypto/libdes/asm/x86ms.pl')
-rw-r--r-- | crypto/libdes/asm/x86ms.pl | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/crypto/libdes/asm/x86ms.pl b/crypto/libdes/asm/x86ms.pl new file mode 100644 index 0000000..18b1186 --- /dev/null +++ b/crypto/libdes/asm/x86ms.pl @@ -0,0 +1,223 @@ +#!/usr/local/bin/perl + +package x86ms; + +$label="L000"; + +%lb=( 'eax', 'al', + 'ebx', 'bl', + 'ecx', 'cl', + 'edx', 'dl', + 'ax', 'al', + 'bx', 'bl', + 'cx', 'cl', + 'dx', 'dl', + ); + +%hb=( 'eax', 'ah', + 'ebx', 'bh', + 'ecx', 'ch', + 'edx', 'dh', + 'ax', 'ah', + 'bx', 'bh', + 'cx', 'ch', + 'dx', 'dh', + ); + +sub main'LB + { + (defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n"; + return($lb{$_[0]}); + } + +sub main'HB + { + (defined($hb{$_[0]})) || die "$_[0] does not have a 'high byte'\n"; + return($hb{$_[0]}); + } + +sub main'DWP + { + local($addr,$reg1,$reg2,$idx)=@_; + local($t); + local($ret)="DWORD PTR "; + + $addr =~ s/^\s+//; + if ($addr =~ /^(.+)\+(.+)$/) + { + $reg2=&conv($1); + $addr="_$2"; + } + elsif ($addr =~ /^[_a-zA-Z]/) + { + $addr="_$addr"; + } + + $reg1="$regs{$reg1}" if defined($regs{$reg1}); + $reg2="$regs{$reg2}" if defined($regs{$reg2}); + $ret.=$addr if ($addr ne "") && ($addr ne 0); + if ($reg2 ne "") + { + $t=""; + $t="*$idx" if ($idx != 0); + $ret.="[$reg2$t+$reg1]"; + } + else + { + $ret.="[$reg1]" + } + return($ret); + } + +sub main'mov { &out2("mov",@_); } +sub main'movb { &out2("mov",@_); } +sub main'and { &out2("and",@_); } +sub main'or { &out2("or",@_); } +sub main'shl { &out2("shl",@_); } +sub main'shr { &out2("shr",@_); } +sub main'xor { &out2("xor",@_); } +sub main'add { &out2("add",@_); } +sub main'sub { &out2("sub",@_); } +sub main'rotl { &out2("rol",@_); } +sub main'rotr { &out2("ror",@_); } +sub main'exch { &out2("xchg",@_); } +sub main'cmp { &out2("cmp",@_); } +sub main'dec { &out1("dec",@_); } +sub main'jmp { &out1("jmp",@_); } +sub main'je { &out1("je",@_); } +sub main'jz { &out1("jz",@_); } +sub main'push { &out1("push",@_); } +sub main'call { &out1("call",'_'.$_[0]); } + + +sub out2 + { + local($name,$p1,$p2)=@_; + local($l,$t); + + print "\t$name\t"; + $t=&conv($p1).","; + $l=length($t); + print $t; + $l=4-($l+9)/8; + print "\t" x $l; + print &conv($p2); + print "\n"; + } + +sub out1 + { + local($name,$p1)=@_; + local($l,$t); + + print "\t$name\t"; + print &conv($p1); + print "\n"; + } + +sub conv + { + local($p)=@_; + + $p =~ s/0x([0-9A-Fa-f]+)/0$1h/; + return $p; + } + +sub main'file + { + local($file)=@_; + + print <<"EOF"; + TITLE $file.asm + .386 +.model FLAT +EOF + } + +sub main'function_begin + { + local($func,$num)=@_; + + $params=$num*4; + + print <<"EOF"; +_TEXT SEGMENT +PUBLIC _$func +EXTRN _des_SPtrans:DWORD +_$func PROC NEAR + push ebp + push ebx + push esi + push edi +EOF + $stack=20; + } + +sub main'function_end + { + local($func)=@_; + + print <<"EOF"; + pop edi + pop esi + pop ebx + pop ebp + ret +_$func ENDP +_TEXT ENDS +EOF + $stack=0; + %label=(); + } + +sub main'file_end + { + print "END\n" + } + +sub main'wparam + { + local($num)=@_; + + return(&main'DWP($stack+$num*4,"esp","",0)); + } + +sub main'wtmp + { + local($num)=@_; + + return(&main'DWP($stack+$params+$num*4,"esp","",0)); + } + +sub main'comment + { + foreach (@_) + { + print "\t; $_\n"; + } + } + +sub main'label + { + if (!defined($label{$_[0]})) + { + $label{$_[0]}="\$${label}${_[0]}"; + $label++; + } + return($label{$_[0]}); + } + +sub main'set_label + { + if (!defined($label{$_[0]})) + { + $label{$_[0]}="${label}${_[0]}"; + $label++; + } + print "$label{$_[0]}:\n"; + } + +sub main'file_end + { + print "END\n"; + } |