diff options
Diffstat (limited to 'devel/perlasm/x86asm.pl')
| l---------[-rw-r--r--] | devel/perlasm/x86asm.pl | 289 |
1 files changed, 1 insertions, 288 deletions
diff --git a/devel/perlasm/x86asm.pl b/devel/perlasm/x86asm.pl index 17abf92297..4c88d69117 100644..120000 --- a/devel/perlasm/x86asm.pl +++ b/devel/perlasm/x86asm.pl @@ -1,288 +1 @@ -#!/usr/bin/env perl - -# require 'x86asm.pl'; -# &asm_init(<flavor>,"des-586.pl"[,$i386only]); -# &function_begin("foo"); -# ... -# &function_end("foo"); -# &asm_finish - -$out=(); -$i386=0; - -# AUTOLOAD is this context has quite unpleasant side effect, namely -# that typos in function calls effectively go to assembler output, -# but on the pros side we don't have to implement one subroutine per -# each opcode... -sub ::AUTOLOAD -{ my $opcode = $AUTOLOAD; - - die "more than 4 arguments passed to $opcode" if ($#_>3); - - $opcode =~ s/.*:://; - if ($opcode =~ /^push/) { $stack+=4; } - elsif ($opcode =~ /^pop/) { $stack-=4; } - - &generic($opcode,@_) or die "undefined subroutine \&$AUTOLOAD"; -} - -sub ::emit -{ my $opcode=shift; - - if ($#_==-1) { push(@out,"\t$opcode\n"); } - else { push(@out,"\t$opcode\t".join(',',@_)."\n"); } -} - -sub ::LB -{ $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'low byte'"; - $1."l"; -} -sub ::HB -{ $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'high byte'"; - $1."h"; -} -sub ::stack_push{ my $num=$_[0]*4; $stack+=$num; &sub("esp",$num); } -sub ::stack_pop { my $num=$_[0]*4; $stack-=$num; &add("esp",$num); } -sub ::blindpop { &pop($_[0]); $stack+=4; } -sub ::wparam { &DWP($stack+4*$_[0],"esp"); } -sub ::swtmp { &DWP(4*$_[0],"esp"); } - -sub ::bswap -{ if ($i386) # emulate bswap for i386 - { &comment("bswap @_"); - &xchg(&HB(@_),&LB(@_)); - &ror (@_,16); - &xchg(&HB(@_),&LB(@_)); - } - else - { &generic("bswap",@_); } -} -# These are made-up opcodes introduced over the years essentially -# by ignorance, just alias them to real ones... -sub ::movb { &mov(@_); } -sub ::xorb { &xor(@_); } -sub ::rotl { &rol(@_); } -sub ::rotr { &ror(@_); } -sub ::exch { &xchg(@_); } -sub ::halt { &hlt; } -sub ::movz { &movzx(@_); } -sub ::pushf { &pushfd; } -sub ::popf { &popfd; } - -# 3 argument instructions -sub ::movq -{ my($p1,$p2,$optimize)=@_; - - if ($optimize && $p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/) - # movq between mmx registers can sink Intel CPUs - { &::pshufw($p1,$p2,0xe4); } - else - { &::generic("movq",@_); } -} - -# SSE>2 instructions -my %regrm = ( "eax"=>0, "ecx"=>1, "edx"=>2, "ebx"=>3, - "esp"=>4, "ebp"=>5, "esi"=>6, "edi"=>7 ); -sub ::pextrd -{ my($dst,$src,$imm)=@_; - if ("$dst:$src" =~ /(e[a-dsd][ixp]):xmm([0-7])/) - { &::data_byte(0x66,0x0f,0x3a,0x16,0xc0|($2<<3)|$regrm{$1},$imm); } - else - { &::generic("pextrd",@_); } -} - -sub ::pinsrd -{ my($dst,$src,$imm)=@_; - if ("$dst:$src" =~ /xmm([0-7]):(e[a-dsd][ixp])/) - { &::data_byte(0x66,0x0f,0x3a,0x22,0xc0|($1<<3)|$regrm{$2},$imm); } - else - { &::generic("pinsrd",@_); } -} - -sub ::pshufb -{ my($dst,$src)=@_; - if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/) - { &data_byte(0x66,0x0f,0x38,0x00,0xc0|($1<<3)|$2); } - else - { &::generic("pshufb",@_); } -} - -sub ::palignr -{ my($dst,$src,$imm)=@_; - if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/) - { &::data_byte(0x66,0x0f,0x3a,0x0f,0xc0|($1<<3)|$2,$imm); } - else - { &::generic("palignr",@_); } -} - -sub ::pclmulqdq -{ my($dst,$src,$imm)=@_; - if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/) - { &::data_byte(0x66,0x0f,0x3a,0x44,0xc0|($1<<3)|$2,$imm); } - else - { &::generic("pclmulqdq",@_); } -} - -sub ::rdrand -{ my ($dst)=@_; - if ($dst =~ /(e[a-dsd][ixp])/) - { &::data_byte(0x0f,0xc7,0xf0|$regrm{$dst}); } - else - { &::generic("rdrand",@_); } -} - -sub rxb { - local *opcode=shift; - my ($dst,$src1,$src2,$rxb)=@_; - - $rxb|=0x7<<5; - $rxb&=~(0x04<<5) if($dst>=8); - $rxb&=~(0x01<<5) if($src1>=8); - $rxb&=~(0x02<<5) if($src2>=8); - push @opcode,$rxb; -} - -sub ::vprotd -{ my $args=join(',',@_); - if ($args =~ /xmm([0-7]),xmm([0-7]),([x0-9a-f]+)/) - { my @opcode=(0x8f); - rxb(\@opcode,$1,$2,-1,0x08); - push @opcode,0x78,0xc2; - push @opcode,0xc0|($2&7)|(($1&7)<<3); # ModR/M - my $c=$3; - push @opcode,$c=~/^0/?oct($c):$c; - &::data_byte(@opcode); - } - else - { &::generic("vprotd",@_); } -} - -# label management -$lbdecor="L"; # local label decoration, set by package -$label="000"; - -sub ::islabel # see is argument is a known label -{ my $i; - foreach $i (values %label) { return $i if ($i eq $_[0]); } - $label{$_[0]}; # can be undef -} - -sub ::label # instantiate a function-scope label -{ if (!defined($label{$_[0]})) - { $label{$_[0]}="${lbdecor}${label}${_[0]}"; $label++; } - $label{$_[0]}; -} - -sub ::LABEL # instantiate a file-scope label -{ $label{$_[0]}=$_[1] if (!defined($label{$_[0]})); - $label{$_[0]}; -} - -sub ::static_label { &::LABEL($_[0],$lbdecor.$_[0]); } - -sub ::set_label_B { push(@out,"@_:\n"); } -sub ::set_label -{ my $label=&::label($_[0]); - &::align($_[1]) if ($_[1]>1); - &::set_label_B($label); - $label; -} - -sub ::wipe_labels # wipes function-scope labels -{ foreach $i (keys %label) - { delete $label{$i} if ($label{$i} =~ /^\Q${lbdecor}\E[0-9]{3}/); } -} - -# subroutine management -sub ::function_begin -{ &function_begin_B(@_); - $stack=4; - &push("ebp"); - &push("ebx"); - &push("esi"); - &push("edi"); -} - -sub ::function_end -{ &pop("edi"); - &pop("esi"); - &pop("ebx"); - &pop("ebp"); - &ret(); - &function_end_B(@_); - $stack=0; - &wipe_labels(); -} - -sub ::function_end_A -{ &pop("edi"); - &pop("esi"); - &pop("ebx"); - &pop("ebp"); - &ret(); - $stack+=16; # readjust esp as if we didn't pop anything -} - -sub ::asciz -{ my @str=unpack("C*",shift); - push @str,0; - while ($#str>15) { - &data_byte(@str[0..15]); - foreach (0..15) { shift @str; } - } - &data_byte(@str) if (@str); -} - -sub ::asm_finish -{ &file_end(); - print @out; -} - -sub ::asm_init -{ my ($type,$fn,$cpu)=@_; - - $filename=$fn; - $i386=$cpu; - - $elf=$cpp=$coff=$aout=$macosx=$win32=$netware=$mwerks=$android=0; - if (($type eq "elf")) - { $elf=1; require "x86gas.pl"; } - elsif (($type eq "a\.out")) - { $aout=1; require "x86gas.pl"; } - elsif (($type eq "coff" or $type eq "gaswin")) - { $coff=1; require "x86gas.pl"; } - elsif (($type eq "win32n")) - { $win32=1; require "x86nasm.pl"; } - elsif (($type eq "nw-nasm")) - { $netware=1; require "x86nasm.pl"; } - #elsif (($type eq "nw-mwasm")) - #{ $netware=1; $mwerks=1; require "x86nasm.pl"; } - elsif (($type eq "win32")) - { $win32=1; require "x86masm.pl"; } - elsif (($type eq "macosx")) - { $aout=1; $macosx=1; require "x86gas.pl"; } - elsif (($type eq "android")) - { $elf=1; $android=1; require "x86gas.pl"; } - else - { print STDERR <<"EOF"; -Pick one target type from - elf - Linux, FreeBSD, Solaris x86, etc. - a.out - DJGPP, elder OpenBSD, etc. - coff - GAS/COFF such as Win32 targets - win32n - Windows 95/Windows NT NASM format - nw-nasm - NetWare NASM format - macosx - Mac OS X -EOF - exit(1); - } - - $pic=0; - for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); } - - $filename =~ s/\.pl$//; - &file($filename); -} - -sub ::hidden {} - -1; +.././openssl/crypto/perlasm/x86asm.pl
\ No newline at end of file |