diff options
Diffstat (limited to 'crypto/openssl/crypto/perlasm/x86unix.pl')
| -rw-r--r-- | crypto/openssl/crypto/perlasm/x86unix.pl | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/perlasm/x86unix.pl b/crypto/openssl/crypto/perlasm/x86unix.pl new file mode 100644 index 0000000..8c456b1 --- /dev/null +++ b/crypto/openssl/crypto/perlasm/x86unix.pl @@ -0,0 +1,453 @@ +#!/usr/local/bin/perl + +package x86unix; + +$label="L000"; + +$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"; + $under=""; + $com_start='/*'; + $com_end='*/'; + } + +%lb=( 'eax', '%al', + 'ebx', '%bl', + 'ecx', '%cl', + 'edx', '%dl', + 'ax', '%al', + 'bx', '%bl', + 'cx', '%cl', + 'dx', '%dl', + ); + +%hb=( 'eax', '%ah', + 'ebx', '%bh', + 'ecx', '%ch', + 'edx', '%dh', + 'ax', '%ah', + 'bx', '%bh', + 'cx', '%ch', + 'dx', '%dh', + ); + +%regs=( 'eax', '%eax', + 'ebx', '%ebx', + 'ecx', '%ecx', + 'edx', '%edx', + 'esi', '%esi', + 'edi', '%edi', + 'ebp', '%ebp', + 'esp', '%esp', + ); + +%reg_val=( + 'eax', 0x00, + 'ebx', 0x03, + 'ecx', 0x01, + 'edx', 0x02, + 'esi', 0x06, + 'edi', 0x07, + 'ebp', 0x05, + 'esp', 0x04, + ); + +sub main'LB + { + (defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n"; + 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)=@_; + + $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 ($reg2 ne "") + { + if($idx ne "") + { $ret.="($reg1,$reg2,$idx)"; } + else + { $ret.="($reg1,$reg2)"; } + } + else + { $ret.="($reg1)" } + return($ret); + } + +sub main'BP + { + return(&main'DWP(@_)); + } + +sub main'BC + { + return @_; + } + +sub main'DWC + { + return @_; + } + +#sub main'BP +# { +# local($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'or { &out2("orl",@_); } +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'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 $p1"); + return; + } + + push(@out,"\t$name\t"); + $t=&conv($p2).","; + $l=length($t); + push(@out,$t); + $ll=4-($l+9)/8; + $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 $p1"); + return; + } + + push(@out,"\t$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 + { + local($p)=@_; + +# $p =~ s/0x([0-9A-Fa-f]+)/0$1h/; + + $p=$regs{$p} if (defined($regs{$p})); + + $p =~ s/^(-{0,1}[0-9A-Fa-f]+)$/\$$1/; + $p =~ s/^(0x[0-9A-Fa-f]+)$/\$$1/; + return $p; + } + +sub main'file + { + local($file)=@_; + + local($tmp)=<<"EOF"; + .file "$file.s" + .version "01.01" +gcc2_compiled.: +EOF + push(@out,$tmp); + } + +sub main'function_begin + { + local($func)=@_; + + &main'external_label($func); + $func=$under.$func; + + local($tmp)=<<"EOF"; +.text + .align $align +.globl $func +EOF + push(@out,$tmp); + if ($main'cpp) + { $tmp=push(@out,"\tTYPE($func,\@function)\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"); } + else { push(@out,"\t.type $func,\@function\n"); } + push(@out,"$func:\n"); + $stack=4; + } + +sub main'function_end + { + local($func)=@_; + + $func=$under.$func; + + local($tmp)=<<"EOF"; + popl %edi + popl %esi + popl %ebx + popl %ebp + ret +.${func}_end: +EOF + push(@out,$tmp); + if ($main'cpp) + { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); } + else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); } + push(@out,".ident \"$func\"\n"); + $stack=0; + %label=(); + } + +sub main'function_end_A + { + local($func)=@_; + + local($tmp)=<<"EOF"; + popl %edi + popl %esi + popl %ebx + popl %ebp + ret +EOF + push(@out,$tmp); + } + +sub main'function_end_B + { + local($func)=@_; + + $func=$under.$func; + + push(@out,".${func}_end:\n"); + if ($main'cpp) + { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); } + else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); } + push(@out,".ident \"desasm.pl\"\n"); + $stack=0; + %label=(); + } + +sub main'wparam + { + local($num)=@_; + + return(&main'DWP($stack+$num*4,"esp","",0)); + } + +sub main'stack_push + { + local($num)=@_; + $stack+=$num*4; + &main'sub("esp",$num*4); + } + +sub main'stack_pop + { + local($num)=@_; + $stack-=$num*4; + &main'add("esp",$num*4); + } + +sub main'swtmp + { + return(&main'DWP($_[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*$/) + { push(@out,"\n"); } + else + { push(@out,"\t$com_start $_ $com_end\n"); } + } + } + +sub main'label + { + if (!defined($label{$_[0]})) + { + $label{$_[0]}=".${label}${_[0]}"; + $label++; + } + return($label{$_[0]}); + } + +sub main'set_label + { + if (!defined($label{$_[0]})) + { + $label{$_[0]}=".${label}${_[0]}"; + $label++; + } + 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"); + } |
