diff options
Diffstat (limited to 'crypto/perlasm/x86unix.pl')
| -rw-r--r-- | crypto/perlasm/x86unix.pl | 256 |
1 files changed, 186 insertions, 70 deletions
diff --git a/crypto/perlasm/x86unix.pl b/crypto/perlasm/x86unix.pl index 3426563dca..deb1185fc9 100644 --- a/crypto/perlasm/x86unix.pl +++ b/crypto/perlasm/x86unix.pl @@ -1,6 +1,12 @@ #!/usr/local/bin/perl -package x86ms; +# Because the bswapl instruction is not supported for old assembers +# (it was a new instruction for the 486), I've added .byte xxxx code +# to put it in. +# eric 24-Apr-1998 +# + +package x86unix; $label="L000"; @@ -8,6 +14,11 @@ $align=($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) { $align="ALIGN"; @@ -46,6 +57,17 @@ if ($main'cpp) '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 "$_[0] does not have a 'low byte'\n"; @@ -62,48 +84,40 @@ sub main'DWP { local($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 "") - { - $ret.="($reg1,$reg2,$idx)"; - } + { $ret.="($reg1,$reg2,$idx)"; } else - { - $ret.="($reg1)" - } + { $ret.="($reg1)" } return($ret); } sub main'BP { - local($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($ret); + return(&main'DWP(@_)); } +#sub main'BP +# { +# local($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",@_); } @@ -111,45 +125,107 @@ 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'push { &out1("pushl",@_); } +sub main'inc { &out1("incl",@_); } +sub main'push { &out1("pushl",@_); $stack+=4; } +sub main'pop { &out1("popl",@_); $stack-=4; } +sub main'bswap { &out1("bswapl",@_); } +sub main'not { &out1("notl",@_); } sub main'call { &out1("call",$under.$_[0]); } - +sub main'ret { &out0("ret"); } +sub main'nop { &out0("nop"); } sub out2 { local($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,$t); + local(%special)=("bswapl",0x0FC8); - print "\t$name\t"; - print &conv($p1); - print "\n"; + if ((defined($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 @@ -160,7 +236,7 @@ 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 $p; } @@ -169,47 +245,69 @@ sub main'file { local($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"); } + 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.$func; - print <<"EOF"; + local($tmp)=<<"EOF"; popl %edi popl %esi popl %ebx @@ -217,10 +315,11 @@ sub main'function_end ret .${func}_end: EOF + push(@out,$tmp); 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"); } + else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); } + push(@out,".ident \"$func\"\n"); $stack=0; %label=(); } @@ -229,13 +328,14 @@ sub main'function_end_A { local($func)=@_; - print <<"EOF"; + local($tmp)=<<"EOF"; popl %edi popl %esi popl %ebx popl %ebp ret EOF + push(@out,$tmp); } sub main'function_end_B @@ -244,13 +344,11 @@ sub main'function_end_B $func=$under.$func; - print <<"EOF"; -.${func}_end: -EOF + push(@out,".${func}_end:\n"); if ($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($func,.${func}_end-$func)\n"); } + else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); } + push(@out,".ident \"desasm.pl\"\n"); $stack=0; %label=(); } @@ -262,28 +360,41 @@ sub main'wparam return(&main'DWP($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"); } } } @@ -304,10 +415,15 @@ sub main'set_label $label{$_[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"); + } |