+++ /dev/null
-#!/usr/local/bin/perl
-
-package x86unix;
-
-$label="L000";
-$const="";
-$constl=0;
-
-$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="";
- $addr =~ s/(^|[+ \t])([A-Za-z_]+[A-Za-z0-9_]+)($|[+ \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 "" && $idx != 0)
- { $ret.="($reg1,$reg2,$idx)"; }
- else
- { $ret.="($reg1,$reg2)"; }
- }
- elsif ($reg1 ne "")
- { $ret.="($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'ja { &out1("ja",@_); }
-sub main'jae { &out1("jae",@_); }
-sub main'jb { &out1("jb",@_); }
-sub main'jbe { &out1("jbe",@_); }
-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'pushf { &out0("pushf"); $stack+=4; }
-sub main'popf { &out0("popf"); $stack-=4; }
-sub main'not { &out1("notl",@_); }
-sub main'call { &out1("call",($_[0]=~/^\.L/?'':$under).$_[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"); }
- elsif ($main'gaswin)
- { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\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"); }
- elsif ($main'gaswin)
- { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\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
-.L_${func}_end:
-EOF
- push(@out,$tmp);
-
- if ($main'cpp)
- { push(@out,"\tSIZE($func,.L_${func}_end-$func)\n"); }
- elsif ($main'gaswin)
- { $tmp=push(@out,"\t.align 4\n"); }
- else { push(@out,"\t.size\t$func,.L_${func}_end-$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.$func;
-
- push(@out,".L_${func}_end:\n");
- if ($main'cpp)
- { push(@out,"\tSIZE($func,.L_${func}_end-$func)\n"); }
- elsif ($main'gaswin)
- { push(@out,"\t.align 4\n"); }
- else { push(@out,"\t.size\t$func,.L_${func}_end-$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
- {
- if ($main'elf) # GNU and SVR4 as'es use different comment delimiters,
- { # so we just skip comments...
- push(@out,"\n");
- return;
- }
- foreach (@_)
- {
- if (/^\s*$/)
- { 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
- {
- if ($const ne "")
- {
- push(@out,".section .rodata\n");
- push(@out,$const);
- $const="";
- }
- }
-
-sub main'data_word
- {
- push(@out,"\t.long $_[0]\n");
- }
-
-# debug output functions: puts, putx, printf
-
-sub main'puts
- {
- &pushvars();
- &main'push('$Lstring' . ++$constl);
- &main'call('puts');
- $stack-=4;
- &main'add("esp",4);
- &popvars();
-
- $const .= "Lstring$constl:\n\t.string \"@_[0]\"\n";
- }
-
-sub main'putx
- {
- &pushvars();
- &main'push($_[0]);
- &main'push('$Lstring' . ++$constl);
- &main'call('printf');
- &main'add("esp",8);
- $stack-=8;
- &popvars();
-
- $const .= "Lstring$constl:\n\t.string \"\%X\"\n";
- }
-
-sub main'printf
- {
- $ostack = $stack;
- &pushvars();
- for ($i = @_ - 1; $i >= 0; $i--)
- {
- if ($i == 0) # change this to support %s format strings
- {
- &main'push('$Lstring' . ++$constl);
- $const .= "Lstring$constl:\n\t.string \"@_[$i]\"\n";
- }
- else
- {
- if ($_[$i] =~ /([0-9]*)\(%esp\)/)
- {
- &main'push(($1 + $stack - $ostack) . '(%esp)');
- }
- else
- {
- &main'push($_[$i]);
- }
- }
- }
- &main'call('printf');
- $stack-=4*@_;
- &main'add("esp",4*@_);
- &popvars();
- }
-
-sub pushvars
- {
- &main'pushf();
- &main'push("edx");
- &main'push("ecx");
- &main'push("eax");
- }
-
-sub popvars
- {
- &main'pop("eax");
- &main'pop("ecx");
- &main'pop("edx");
- &main'popf();
- }
-
-sub main'picmeup
- {
- local($dst,$sym)=@_;
- if ($main'cpp)
- {
- local($tmp)=<<___;
-#if (defined(ELF) || defined(SOL)) && defined(PIC)
- .align 8
- call 1f
-1: popl $regs{$dst}
- addl \$_GLOBAL_OFFSET_TABLE_+[.-1b],$regs{$dst}
- movl $sym\@GOT($regs{$dst}),$regs{$dst}
-#else
- leal $sym,$regs{$dst}
-#endif
-___
- push(@out,$tmp);
- }
- elsif ($main'pic && ($main'elf || $main'aout))
- {
- push(@out,"\t.align\t8\n");
- &main'call(&main'label("PIC_me_up"));
- &main'set_label("PIC_me_up");
- &main'blindpop($dst);
- &main'add($dst,"\$$under"."_GLOBAL_OFFSET_TABLE_+[.-".
- &main'label("PIC_me_up") . "]");
- &main'mov($dst,&main'DWP($sym."\@GOT",$dst));
- }
- else
- {
- &main'lea($dst,&main'DWP($sym));
- }
- }
-
-sub main'blindpop { &out1("popl",@_); }
projects / bcm963xx.git / blobdiff