--- /dev/null
+#!/usr/local/bin/perl
+
+package x86ms;
+
+$label="L000";
+
+%lb=( 'eax', 'al',
+ 'ebx', 'bl',
+ 'ecx', 'cl',
+ 'edx', 'dl',
+ 'ax', 'al',
+ 'bx', 'bl',
+ 'cx', 'cl',
+ 'dx', 'dl',
+ );
+
+%hb=( 'eax', 'ah',
+ 'ebx', 'bh',
+ 'ecx', 'ch',
+ 'edx', 'dh',
+ 'ax', 'ah',
+ 'bx', 'bh',
+ 'cx', 'ch',
+ 'dx', 'dh',
+ );
+
+sub main'asm_init_output { @out=(); }
+sub main'asm_get_output { return(@out); }
+sub main'get_labels { return(@labels); }
+sub main'external_label { push(@labels,@_); }
+
+sub main'LB
+ {
+ (defined($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{$_[0]});
+ }
+
+sub main'BP
+ {
+ &get_mem("BYTE",@_);
+ }
+
+sub main'DWP
+ {
+ &get_mem("DWORD",@_);
+ }
+
+sub main'BC
+ {
+ return @_;
+ }
+
+sub main'DWC
+ {
+ return @_;
+ }
+
+sub main'stack_push
+ {
+ local($num)=@_;
+ $stack+=$num*4;
+ &main'sub("esp",$num*4);
+ }
+
+sub main'stack_pop
+ {
+ local($num)=@_;
+ $stack-=$num*4;
+ &main'add("esp",$num*4);
+ }
+
+sub get_mem
+ {
+ local($size,$addr,$reg1,$reg2,$idx)=@_;
+ local($t,$post);
+ local($ret)="$size PTR ";
+
+ $addr =~ s/^\s+//;
+ if ($addr =~ /^(.+)\+(.+)$/)
+ {
+ $reg2=&conv($1);
+ $addr="_$2";
+ }
+ elsif ($addr =~ /^[_a-zA-Z]/)
+ {
+ $addr="_$addr";
+ }
+
+ if ($addr =~ /^.+\-.+$/) { $addr="($addr)"; }
+
+ $reg1="$regs{$reg1}" if defined($regs{$reg1});
+ $reg2="$regs{$reg2}" if defined($regs{$reg2});
+ if (($addr ne "") && ($addr ne 0))
+ {
+ if ($addr !~ /^-/)
+ { $ret.=$addr; }
+ else { $post=$addr; }
+ }
+ if ($reg2 ne "")
+ {
+ $t="";
+ $t="*$idx" if ($idx != 0);
+ $reg1="+".$reg1 if ("$reg1$post" ne "");
+ $ret.="[$reg2$t$reg1$post]";
+ }
+ else
+ {
+ $ret.="[$reg1$post]"
+ }
+ $ret =~ s/\[\]//; # in case $addr was the only argument
+ return($ret);
+ }
+
+sub main'mov { &out2("mov",@_); }
+sub main'movb { &out2("mov",@_); }
+sub main'and { &out2("and",@_); }
+sub main'or { &out2("or",@_); }
+sub main'shl { &out2("shl",@_); }
+sub main'shr { &out2("shr",@_); }
+sub main'xor { &out2("xor",@_); }
+sub main'xorb { &out2("xor",@_); }
+sub main'add { &out2("add",@_); }
+sub main'adc { &out2("adc",@_); }
+sub main'sub { &out2("sub",@_); }
+sub main'rotl { &out2("rol",@_); }
+sub main'rotr { &out2("ror",@_); }
+sub main'exch { &out2("xchg",@_); }
+sub main'cmp { &out2("cmp",@_); }
+sub main'lea { &out2("lea",@_); }
+sub main'mul { &out1("mul",@_); }
+sub main'div { &out1("div",@_); }
+sub main'dec { &out1("dec",@_); }
+sub main'inc { &out1("inc",@_); }
+sub main'jmp { &out1("jmp",@_); }
+sub main'jmp_ptr { &out1p("jmp",@_); }
+sub main'je { &out1("je",@_); }
+sub main'jle { &out1("jle",@_); }
+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'jnz { &out1("jnz",@_); }
+sub main'jne { &out1("jne",@_); }
+sub main'jno { &out1("jno",@_); }
+sub main'push { &out1("push",@_); $stack+=4; }
+sub main'pop { &out1("pop",@_); $stack-=4; }
+sub main'bswap { &out1("bswap",@_); &using486(); }
+sub main'not { &out1("not",@_); }
+sub main'call { &out1("call",($_[0]=~/^\$L/?'':'_').$_[0]); }
+sub main'ret { &out0("ret"); }
+sub main'nop { &out0("nop"); }
+sub main'movz { &out2("movzx",@_); }
+
+sub out2
+ {
+ local($name,$p1,$p2)=@_;
+ local($l,$t);
+
+ push(@out,"\t$name\t");
+ $t=&conv($p1).",";
+ $l=length($t);
+ push(@out,$t);
+ $l=4-($l+9)/8;
+ push(@out,"\t" x $l);
+ push(@out,&conv($p2));
+ push(@out,"\n");
+ }
+
+sub out0
+ {
+ local($name)=@_;
+
+ push(@out,"\t$name\n");
+ }
+
+sub out1
+ {
+ local($name,$p1)=@_;
+ local($l,$t);
+
+ push(@out,"\t$name\t".&conv($p1)."\n");
+ }
+
+sub conv
+ {
+ local($p)=@_;
+
+ $p =~ s/0x([0-9A-Fa-f]+)/0$1h/;
+ return $p;
+ }
+
+sub using486
+ {
+ return if $using486;
+ $using486++;
+ grep(s/\.386/\.486/,@out);
+ }
+
+sub main'file
+ {
+ local($file)=@_;
+
+ local($tmp)=<<"EOF";
+ TITLE $file.asm
+ .386
+.model FLAT
+EOF
+ push(@out,$tmp);
+ }
+
+sub main'function_begin
+ {
+ local($func,$extra)=@_;
+
+ push(@labels,$func);
+
+ local($tmp)=<<"EOF";
+_TEXT SEGMENT
+PUBLIC _$func
+$extra
+_$func PROC NEAR
+ push ebp
+ push ebx
+ push esi
+ push edi
+EOF
+ push(@out,$tmp);
+ $stack=20;
+ }
+
+sub main'function_begin_B
+ {
+ local($func,$extra)=@_;
+
+ local($tmp)=<<"EOF";
+_TEXT SEGMENT
+PUBLIC _$func
+$extra
+_$func PROC NEAR
+EOF
+ push(@out,$tmp);
+ $stack=4;
+ }
+
+sub main'function_end
+ {
+ local($func)=@_;
+
+ local($tmp)=<<"EOF";
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+ ret
+_$func ENDP
+_TEXT ENDS
+EOF
+ push(@out,$tmp);
+ $stack=0;
+ %label=();
+ }
+
+sub main'function_end_B
+ {
+ local($func)=@_;
+
+ local($tmp)=<<"EOF";
+_$func ENDP
+_TEXT ENDS
+EOF
+ push(@out,$tmp);
+ $stack=0;
+ %label=();
+ }
+
+sub main'function_end_A
+ {
+ local($func)=@_;
+
+ local($tmp)=<<"EOF";
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+ ret
+EOF
+ push(@out,$tmp);
+ }
+
+sub main'file_end
+ {
+ push(@out,"END\n");
+ }
+
+sub main'wparam
+ {
+ local($num)=@_;
+
+ return(&main'DWP($stack+$num*4,"esp","",0));
+ }
+
+sub main'swtmp
+ {
+ return(&main'DWP($_[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 (@_)
+ {
+ push(@out,"\t; $_\n");
+ }
+ }
+
+sub main'label
+ {
+ if (!defined($label{$_[0]}))
+ {
+ $label{$_[0]}="\$${label}${_[0]}";
+ $label++;
+ }
+ return($label{$_[0]});
+ }
+
+sub main'set_label
+ {
+ if (!defined($label{$_[0]}))
+ {
+ $label{$_[0]}="\$${label}${_[0]}";
+ $label++;
+ }
+ if((defined $_[2]) && ($_[2] == 1))
+ {
+ push(@out,"$label{$_[0]}::\n");
+ }
+ else
+ {
+ push(@out,"$label{$_[0]}:\n");
+ }
+ }
+
+sub main'data_word
+ {
+ push(@out,"\tDD\t$_[0]\n");
+ }
+
+sub out1p
+ {
+ local($name,$p1)=@_;
+ local($l,$t);
+
+ push(@out,"\t$name\t ".&conv($p1)."\n");
+ }
+
+sub main'picmeup
+ {
+ local($dst,$sym)=@_;
+ &main'lea($dst,&main'DWP($sym));
+ }
+
+sub main'blindpop { &out1("pop",@_); }
projects / bcm963xx.git / blobdiff