| Index: openssl/crypto/perlasm/x86masm.pl
|
| ===================================================================
|
| --- openssl/crypto/perlasm/x86masm.pl (revision 0)
|
| +++ openssl/crypto/perlasm/x86masm.pl (revision 0)
|
| @@ -0,0 +1,184 @@
|
| +#!/usr/bin/env perl
|
| +
|
| +package x86masm;
|
| +
|
| +*out=\@::out;
|
| +
|
| +$::lbdecor="\$L"; # local label decoration
|
| +$nmdecor="_"; # external name decoration
|
| +
|
| +$initseg="";
|
| +$segment="";
|
| +
|
| +sub ::generic
|
| +{ my ($opcode,@arg)=@_;
|
| +
|
| + # fix hexadecimal constants
|
| + for (@arg) { s/0x([0-9a-f]+)/0$1h/oi; }
|
| +
|
| + if ($opcode !~ /movq/)
|
| + { # fix xmm references
|
| + $arg[0] =~ s/\b[A-Z]+WORD\s+PTR/XMMWORD PTR/i if ($arg[1]=~/\bxmm[0-7]\b/i);
|
| + $arg[1] =~ s/\b[A-Z]+WORD\s+PTR/XMMWORD PTR/i if ($arg[0]=~/\bxmm[0-7]\b/i);
|
| + }
|
| +
|
| + &::emit($opcode,@arg);
|
| + 1;
|
| +}
|
| +#
|
| +# opcodes not covered by ::generic above, mostly inconsistent namings...
|
| +#
|
| +sub ::call { &::emit("call",(&::islabel($_[0]) or "$nmdecor$_[0]")); }
|
| +sub ::call_ptr { &::emit("call",@_); }
|
| +sub ::jmp_ptr { &::emit("jmp",@_); }
|
| +
|
| +sub get_mem
|
| +{ my($size,$addr,$reg1,$reg2,$idx)=@_;
|
| + my($post,$ret);
|
| +
|
| + $ret .= "$size PTR " if ($size ne "");
|
| +
|
| + $addr =~ s/^\s+//;
|
| + # prepend global references with optional underscore
|
| + $addr =~ s/^([^\+\-0-9][^\+\-]*)/&::islabel($1) or "$nmdecor$1"/ige;
|
| + # put address arithmetic expression in parenthesis
|
| + $addr="($addr)" if ($addr =~ /^.+[\-\+].+$/);
|
| +
|
| + if (($addr ne "") && ($addr ne 0))
|
| + { if ($addr !~ /^-/) { $ret .= "$addr"; }
|
| + else { $post=$addr; }
|
| + }
|
| + $ret .= "[";
|
| +
|
| + if ($reg2 ne "")
|
| + { $idx!=0 or $idx=1;
|
| + $ret .= "$reg2*$idx";
|
| + $ret .= "+$reg1" if ($reg1 ne "");
|
| + }
|
| + else
|
| + { $ret .= "$reg1"; }
|
| +
|
| + $ret .= "$post]";
|
| + $ret =~ s/\+\]/]/; # in case $addr was the only argument
|
| + $ret =~ s/\[\s*\]//;
|
| +
|
| + $ret;
|
| +}
|
| +sub ::BP { &get_mem("BYTE",@_); }
|
| +sub ::DWP { &get_mem("DWORD",@_); }
|
| +sub ::QWP { &get_mem("QWORD",@_); }
|
| +sub ::BC { "@_"; }
|
| +sub ::DWC { "@_"; }
|
| +
|
| +sub ::file
|
| +{ my $tmp=<<___;
|
| +TITLE $_[0].asm
|
| +IF \@Version LT 800
|
| +ECHO MASM version 8.00 or later is strongly recommended.
|
| +ENDIF
|
| +.486
|
| +.MODEL FLAT
|
| +OPTION DOTNAME
|
| +IF \@Version LT 800
|
| +.text\$ SEGMENT PAGE 'CODE'
|
| +ELSE
|
| +.text\$ SEGMENT ALIGN(64) 'CODE'
|
| +ENDIF
|
| +___
|
| + push(@out,$tmp);
|
| + $segment = ".text\$";
|
| +}
|
| +
|
| +sub ::function_begin_B
|
| +{ my $func=shift;
|
| + my $global=($func !~ /^_/);
|
| + my $begin="${::lbdecor}_${func}_begin";
|
| +
|
| + &::LABEL($func,$global?"$begin":"$nmdecor$func");
|
| + $func="ALIGN\t16\n".$nmdecor.$func."\tPROC";
|
| +
|
| + if ($global) { $func.=" PUBLIC\n${begin}::\n"; }
|
| + else { $func.=" PRIVATE\n"; }
|
| + push(@out,$func);
|
| + $::stack=4;
|
| +}
|
| +sub ::function_end_B
|
| +{ my $func=shift;
|
| +
|
| + push(@out,"$nmdecor$func ENDP\n");
|
| + $::stack=0;
|
| + &::wipe_labels();
|
| +}
|
| +
|
| +sub ::file_end
|
| +{ my $xmmheader=<<___;
|
| +.686
|
| +.XMM
|
| +IF \@Version LT 800
|
| +XMMWORD STRUCT 16
|
| +DQ 2 dup (?)
|
| +XMMWORD ENDS
|
| +ENDIF
|
| +___
|
| + if (grep {/\b[x]?mm[0-7]\b/i} @out) {
|
| + grep {s/\.[3-7]86/$xmmheader/} @out;
|
| + }
|
| +
|
| + push(@out,"$segment ENDS\n");
|
| +
|
| + if (grep {/\b${nmdecor}OPENSSL_ia32cap_P\b/i} @out)
|
| + { my $comm=<<___;
|
| +.bss SEGMENT 'BSS'
|
| +COMM ${nmdecor}OPENSSL_ia32cap_P:DWORD
|
| +.bss ENDS
|
| +___
|
| + # comment out OPENSSL_ia32cap_P declarations
|
| + grep {s/(^EXTERN\s+${nmdecor}OPENSSL_ia32cap_P)/\;$1/} @out;
|
| + push (@out,$comm);
|
| + }
|
| + push (@out,$initseg) if ($initseg);
|
| + push (@out,"END\n");
|
| +}
|
| +
|
| +sub ::comment { foreach (@_) { push(@out,"\t; $_\n"); } }
|
| +
|
| +*::set_label_B = sub
|
| +{ my $l=shift; push(@out,$l.($l=~/^\Q${::lbdecor}\E[0-9]{3}/?":\n":"::\n")); };
|
| +
|
| +sub ::external_label
|
| +{ foreach(@_)
|
| + { push(@out, "EXTERN\t".&::LABEL($_,$nmdecor.$_).":NEAR\n"); }
|
| +}
|
| +
|
| +sub ::public_label
|
| +{ push(@out,"PUBLIC\t".&::LABEL($_[0],$nmdecor.$_[0])."\n"); }
|
| +
|
| +sub ::data_byte
|
| +{ push(@out,("DB\t").join(',',@_)."\n"); }
|
| +
|
| +sub ::data_word
|
| +{ push(@out,("DD\t").join(',',@_)."\n"); }
|
| +
|
| +sub ::align
|
| +{ push(@out,"ALIGN\t$_[0]\n"); }
|
| +
|
| +sub ::picmeup
|
| +{ my($dst,$sym)=@_;
|
| + &::lea($dst,&::DWP($sym));
|
| +}
|
| +
|
| +sub ::initseg
|
| +{ my $f=$nmdecor.shift;
|
| +
|
| + $initseg.=<<___;
|
| +.CRT\$XCU SEGMENT DWORD PUBLIC 'DATA'
|
| +EXTERN $f:NEAR
|
| +DD $f
|
| +.CRT\$XCU ENDS
|
| +___
|
| +}
|
| +
|
| +sub ::dataseg
|
| +{ push(@out,"$segment\tENDS\n_DATA\tSEGMENT\n"); $segment="_DATA"; }
|
| +
|
| +1;
|
|
|