-#!/usr/local/bin/perl
+#!/usr/bin/env perl
# require 'x86asm.pl';
-# &asm_init("cpp","des-586.pl");
-# XXX
-# XXX
-# main'asm_finish
-
-sub main'asm_finish
- {
- &file_end();
- &asm_finish_cpp() if $cpp;
- print &asm_get_output();
- }
-
-sub main'asm_init
- {
- ($type,$fn,$i386)=@_;
- $filename=$fn;
-
- $elf=$cpp=$coff=$aout=$win32=$netware=$mwerks=0;
- if ( ($type eq "elf"))
- { $elf=1; require "x86unix.pl"; }
- elsif ( ($type eq "a.out"))
- { $aout=1; require "x86unix.pl"; }
- elsif ( ($type eq "coff" or $type eq "gaswin"))
- { $coff=1; require "x86unix.pl"; }
- elsif ( ($type eq "cpp"))
- { $cpp=1; require "x86unix.pl"; }
- elsif ( ($type eq "win32"))
- { $win32=1; require "x86ms.pl"; }
- elsif ( ($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; $mwerks=1; require "x86nasm.pl"; }
- else
- {
- print STDERR <<"EOF";
+# &asm_init(<flavor>,"des-586.pl"[,$i386only]);
+# &function_begin("foo");
+# ...
+# &function_end("foo");
+# &asm_finish
+
+# 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 2 arguments passed to $opcode" if ($#_>1);
+
+ $opcode =~ s/.*:://;
+ if ($opcode =~ /^push/) { $stack+=4; }
+ elsif ($opcode =~ /^pop/) { $stack-=4; }
+
+ &generic($opcode,@_) or die "undefined subroutine \&$AUTOLOAD";
+}
+
+$out=();
+$i386=0;
+
+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 ::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();
+ $stack=0;
+ &function_end_B(@_);
+}
+
+sub ::function_end_A
+{ &pop("edi");
+ &pop("esi");
+ &pop("ebx");
+ &pop("ebp");
+ &ret();
+ $stack+=16; # readjust esp as if we didn't pop anything
+}
+
+sub ::asm_finish
+{ &file_end();
+ print @out;
+}
+
+sub ::asm_init
+{ my ($type,$fn,$cpu)=@_;
+
+ $filename=$fn;
+ $i386=$cpu;
+
+ $elf=$cpp=$coff=$aout=$win32=$netware=$mwerks=0;
+ if (($type eq "elf"))
+ { $elf=1; require "x86unix.pl"; }
+ elsif (($type eq "a\.out"))
+ { $aout=1; require "x86unix.pl"; }
+ elsif (($type eq "coff" or $type eq "gaswin"))
+ { $coff=1; require "x86unix.pl"; }
+ elsif (($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"; }
+ else
+ { print STDERR <<"EOF";
Pick one target type from
elf - Linux, FreeBSD, Solaris x86, etc.
- a.out - OpenBSD, DJGPP, etc.
+ a.out - DJGPP, elder OpenBSD, etc.
coff - GAS/COFF such as Win32 targets
- win32 - Windows 95/Windows NT
win32n - Windows 95/Windows NT NASM format
nw-nasm - NetWare NASM format
nw-mwasm- NetWare Metrowerks Assembler
EOF
- exit(1);
- }
-
- $pic=0;
- for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); }
-
- &asm_init_output();
-
-&comment("Don't even think of reading this code");
-&comment("It was automatically generated by $filename");
-&comment("Which is a perl program used to generate the x86 assember for");
-&comment("any of ELF, a.out, COFF, Win32, ...");
-&comment("eric <eay\@cryptsoft.com>");
-&comment("");
-
- $filename =~ s/\.pl$//;
- &file($filename);
- }
-
-sub asm_finish_cpp
- {
- return unless $cpp;
-
- local($tmp,$i);
- foreach $i (&get_labels())
- {
- $tmp.="#define $i _$i\n";
- }
- print <<"EOF";
-/* Run the C pre-processor over this file with one of the following defined
- * ELF - elf object files,
- * OUT - a.out object files,
- * BSDI - BSDI style a.out object files
- * SOL - Solaris style elf
- */
-
-#define TYPE(a,b) .type a,b
-#define SIZE(a,b) .size a,b
-
-#if defined(OUT) || (defined(BSDI) && !defined(ELF))
-$tmp
-#endif
-
-#ifdef OUT
-#define OK 1
-#define ALIGN 4
-#if defined(__CYGWIN__) || defined(__DJGPP__) || defined(__MINGW32__)
-#undef SIZE
-#undef TYPE
-#define SIZE(a,b)
-#define TYPE(a,b) .def a; .scl 2; .type 32; .endef
-#endif /* __CYGWIN || __DJGPP */
-#endif
-
-#if defined(BSDI) && !defined(ELF)
-#define OK 1
-#define ALIGN 4
-#undef SIZE
-#undef TYPE
-#define SIZE(a,b)
-#define TYPE(a,b)
-#endif
-
-#if defined(ELF) || defined(SOL)
-#define OK 1
-#define ALIGN 16
-#endif
-
-#ifndef OK
-You need to define one of
-ELF - elf systems - linux-elf, NetBSD and DG-UX
-OUT - a.out systems - linux-a.out and FreeBSD
-SOL - solaris systems, which are elf with strange comment lines
-BSDI - a.out with a very primative version of as.
-#endif
-
-/* Let the Assembler begin :-) */
-EOF
- }
+ exit(1);
+ }
+
+ $pic=0;
+ for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); }
+
+ $filename =~ s/\.pl$//;
+ &file($filename);
+}
1;
+++ /dev/null
-#!/usr/local/bin/perl
-
-package x86ms;
-
-$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,@_);
- foreach (@_) {
- push(@out, "EXTRN\t_$_:DWORD\n");
- }
-}
-
-sub main'LB
- {
- (defined($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{$_[0]});
- }
-
-sub main'BP
- {
- &get_mem("BYTE",@_);
- }
-
-sub main'DWP
- {
- &get_mem("DWORD",@_);
- }
-
-sub main'QWP
- {
- &get_mem("QWORD",@_);
- }
-
-sub main'BC
- {
- return @_;
- }
-
-sub main'DWC
- {
- return @_;
- }
-
-sub main'stack_push
- {
- local($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-z][_a-z0-9]*$/i)
- {
- $addr="_$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'sbb { &out2("sbb",@_); }
-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'pushf { &out0("pushfd"); $stack+=4; }
-sub main'popf { &out0("popfd"); $stack-=4; }
-sub main'bswap { &out1("bswap",@_); &using486(); }
-sub main'not { &out1("not",@_); }
-sub main'call { &out1("call",($_[0]=~/^\$L/?'':'_').$_[0]); }
-sub main'call_ptr { &out1p("call",@_); }
-sub main'ret { &out0("ret"); }
-sub main'nop { &out0("nop"); }
-sub main'test { &out2("test",@_); }
-sub main'bt { &out2("bt",@_); }
-sub main'leave { &out0("leave"); }
-sub main'cpuid { &out0("DW\t0A20Fh"); }
-sub main'rdtsc { &out0("DW\t0310Fh"); }
-sub main'halt { &out0("hlt"); }
-sub main'movz { &out2("movzx",@_); }
-sub main'neg { &out1("neg",@_); }
-sub main'cld { &out0("cld"); }
-
-# SSE2
-sub main'emms { &out0("emms"); }
-sub main'movd { &out2("movd",@_); }
-sub main'movq { &out2("movq",@_); }
-sub main'movdqu { &out2("movdqu",@_); }
-sub main'movdqa { &out2("movdqa",@_); }
-sub main'movdq2q{ &out2("movdq2q",@_); }
-sub main'movq2dq{ &out2("movq2dq",@_); }
-sub main'paddq { &out2("paddq",@_); }
-sub main'pmuludq{ &out2("pmuludq",@_); }
-sub main'psrlq { &out2("psrlq",@_); }
-sub main'psllq { &out2("psllq",@_); }
-sub main'pxor { &out2("pxor",@_); }
-sub main'por { &out2("por",@_); }
-sub main'pand { &out2("pand",@_); }
-
-sub out2
- {
- local($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 $file.asm
- .386
-.model FLAT
-_TEXT\$ SEGMENT PAGE 'CODE'
-
-EOF
- push(@out,$tmp);
- }
-
-sub main'function_begin
- {
- local($func,$extra)=@_;
-
- push(@labels,$func);
-
- local($tmp)=<<"EOF";
-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";
-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
-EOF
- push(@out,$tmp);
- $stack=0;
- %label=();
- }
-
-sub main'function_end_B
- {
- local($func)=@_;
-
- local($tmp)=<<"EOF";
-_$func ENDP
-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
- {
- # try to detect if SSE2 or MMX extensions were used...
- if (grep {/xmm[0-7]\s*,/i} @out) {
- grep {s/\.[3-7]86/\.686\n\t\.XMM/} @out;
- }
- elsif (grep {/mm[0-7]\s*,/i} @out) {
- grep {s/\.[3-7]86/\.686\n\t\.MMX/} @out;
- }
- push(@out,"_TEXT\$ ENDS\n");
- 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'public_label
- {
- $label{$_[0]}="_$_[0]" if (!defined($label{$_[0]}));
- push(@out,"PUBLIC\t$label{$_[0]}\n");
- }
-
-sub main'label
- {
- if (!defined($label{$_[0]}))
- {
- $label{$_[0]}="\$${label}${_[0]}";
- $label++;
- }
- return($label{$_[0]});
- }
-
-sub main'set_label
- {
- if (!defined($label{$_[0]}))
- {
- $label{$_[0]}="\$${label}${_[0]}";
- $label++;
- }
- if ($_[1]!=0 && $_[1]>1)
- {
- main'align($_[1]);
- }
- if((defined $_[2]) && ($_[2] == 1))
- {
- push(@out,"$label{$_[0]}::\n");
- }
- elsif ($label{$_[0]} !~ /^\$/)
- {
- push(@out,"$label{$_[0]}\tLABEL PTR\n");
- }
- else
- {
- push(@out,"$label{$_[0]}:\n");
- }
- }
-
-sub main'data_byte
- {
- push(@out,"\tDB\t".join(',',@_)."\n");
- }
-
-sub main'data_word
- {
- push(@out,"\tDD\t".join(',',@_)."\n");
- }
-
-sub main'align
- {
- push(@out,"\tALIGN\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($sym));
- }
-
-sub main'blindpop { &out1("pop",@_); }
-
-sub main'initseg
- {
- local($f)=@_;
- local($tmp)=<<___;
-OPTION DOTNAME
-.CRT\$XCU SEGMENT DWORD PUBLIC 'DATA'
-EXTRN _$f:NEAR
-DD _$f
-.CRT\$XCU ENDS
-___
- push(@out,$tmp);
- }
-
-1;
-#!/usr/local/bin/perl
+#!/usr/bin/env perl
package x86nasm;
-$label="L000";
-$under=($main'netware)?'':'_';
+*out=\@::out;
-%lb=( 'eax', 'al',
- 'ebx', 'bl',
- 'ecx', 'cl',
- 'edx', 'dl',
- 'ax', 'al',
- 'bx', 'bl',
- 'cx', 'cl',
- 'dx', 'dl',
- );
+$lprfx="\@L";
+$label="000";
+$under=($::netware)?'':'_';
-%hb=( 'eax', 'ah',
- 'ebx', 'bh',
- 'ecx', 'ch',
- 'edx', 'dh',
- 'ax', 'ah',
- 'bx', 'bh',
- 'cx', 'ch',
- 'dx', 'dh',
- );
+sub ::generic
+{ my $opcode=shift;
+ my $tmp;
-sub main'asm_init_output { @out=(); }
-sub main'asm_get_output { return(@out); }
-sub main'get_labels { return(@labels); }
-
-sub main'external_label
-{
- push(@labels,@_);
- foreach (@_) {
- push(@out,".") if ($main'mwerks);
- push(@out, "extern\t${under}$_\n");
- }
+ if (!$::mwerks)
+ { if ($opcode =~ m/^j/o && $#_==0) # optimize jumps
+ { $_[0] = "NEAR $_[0]"; }
+ elsif ($opcode eq "lea" && $#_==1)# wipe storage qualifier from lea
+ { $_[1] =~ s/^[^\[]*\[/\[/o; }
+ }
+ &::emit($opcode,@_);
+ 1;
}
-
-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'QWP
- {
- &get_mem("",@_);
- }
-
-sub main'BC
- {
- return (($main'mwerks)?"":"BYTE ")."@_";
- }
-
-sub main'DWC
- {
- return (($main'mwerks)?"":"DWORD ")."@_";
- }
-
-sub main'stack_push
- {
- my($num)=@_;
- $stack+=$num*4;
- &main'sub("esp",$num*4);
- }
-
-sub main'stack_pop
- {
- my($num)=@_;
- $stack-=$num*4;
- &main'add("esp",$num*4);
- }
+#
+# opcodes not covered by ::generic above, mostly inconsistent namings...
+#
+sub ::movz { &::movzx(@_); }
+sub ::pushf { &::pushfd; }
+sub ::popf { &::popfd; }
+
+sub ::call { &::emit("call",(&islabel($_[0]) or "$under$_[0]")); }
+sub ::call_ptr { &::emit("call",@_); }
+sub ::jmp_ptr { &::emit("jmp",@_); }
+
+# chosen SSE 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
+ { &::emit("movq",@_); }
+}
+sub ::pshufw { &::emit("pshufw",@_); }
sub get_mem
- {
- my($size,$addr,$reg1,$reg2,$idx)=@_;
- my($t,$post);
- my($ret)=$size;
- if ($ret ne "")
- {
- $ret .= " PTR" if ($main'mwerks);
- $ret .= " ";
- }
- $ret .= "[";
- $addr =~ s/^\s+//;
- if ($addr =~ /^(.+)\+(.+)$/)
- {
- $reg2=&conv($1);
- $addr="$under$2";
- }
- elsif ($addr =~ /^[_a-z][_a-z0-9]*$/i)
- {
- $addr="$under$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'sbb { &out2("sbb",@_); }
-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",@_); }
-
-# This is a bit of a kludge: declare all branches as NEAR.
-$near=($main'mwerks)?'':'NEAR';
-sub main'je { &out1("je $near",@_); }
-sub main'jle { &out1("jle $near",@_); }
-sub main'jz { &out1("jz $near",@_); }
-sub main'jge { &out1("jge $near",@_); }
-sub main'jl { &out1("jl $near",@_); }
-sub main'ja { &out1("ja $near",@_); }
-sub main'jae { &out1("jae $near",@_); }
-sub main'jb { &out1("jb $near",@_); }
-sub main'jbe { &out1("jbe $near",@_); }
-sub main'jc { &out1("jc $near",@_); }
-sub main'jnc { &out1("jnc $near",@_); }
-sub main'jnz { &out1("jnz $near",@_); }
-sub main'jne { &out1("jne $near",@_); }
-sub main'jno { &out1("jno $near",@_); }
-
-sub main'push { &out1("push",@_); $stack+=4; }
-sub main'pop { &out1("pop",@_); $stack-=4; }
-sub main'pushf { &out0("pushfd"); $stack+=4; }
-sub main'popf { &out0("popfd"); $stack-=4; }
-sub main'bswap { &out1("bswap",@_); &using486(); }
-sub main'not { &out1("not",@_); }
-sub main'call { &out1("call",($_[0]=~/^\@L/?'':$under).$_[0]); }
-sub main'call_ptr { &out1p("call",@_); }
-sub main'ret { &out0("ret"); }
-sub main'nop { &out0("nop"); }
-sub main'test { &out2("test",@_); }
-sub main'bt { &out2("bt",@_); }
-sub main'leave { &out0("leave"); }
-sub main'cpuid { &out0("cpuid"); }
-sub main'rdtsc { &out0("rdtsc"); }
-sub main'halt { &out0("hlt"); }
-sub main'movz { &out2("movzx",@_); }
-sub main'neg { &out1("neg",@_); }
-sub main'cld { &out0("cld"); }
-
-# SSE2
-sub main'emms { &out0("emms"); }
-sub main'movd { &out2("movd",@_); }
-sub main'movq { &out2("movq",@_); }
-sub main'movdqu { &out2("movdqu",@_); }
-sub main'movdqa { &out2("movdqa",@_); }
-sub main'movdq2q{ &out2("movdq2q",@_); }
-sub main'movq2dq{ &out2("movq2dq",@_); }
-sub main'paddq { &out2("paddq",@_); }
-sub main'pmuludq{ &out2("pmuludq",@_); }
-sub main'psrlq { &out2("psrlq",@_); }
-sub main'psllq { &out2("psllq",@_); }
-sub main'pxor { &out2("pxor",@_); }
-sub main'por { &out2("por",@_); }
-sub main'pand { &out2("pand",@_); }
-
-sub out2
- {
- my($name,$p1,$p2)=@_;
- my($l,$t);
-
- push(@out,"\t$name\t");
- if (!$main'mwerks and $name eq "lea")
- {
- $p1 =~ s/^[^\[]*\[/\[/;
- $p2 =~ s/^[^\[]*\[/\[/;
- }
- $t=&conv($p1).",";
- $l=length($t);
- push(@out,$t);
- $l=4-($l+9)/8;
- push(@out,"\t" x $l);
- push(@out,&conv($p2));
- push(@out,"\n");
- }
-
-sub out0
- {
- my($name)=@_;
-
- push(@out,"\t$name\n");
- }
-
-sub out1
- {
- my($name,$p1)=@_;
- my($l,$t);
- push(@out,"\t$name\t".&conv($p1)."\n");
- }
-
-sub conv
- {
- my($p)=@_;
- $p =~ s/0x([0-9A-Fa-f]+)/0$1h/;
- return $p;
- }
-
-sub using486
- {
- return if $using486;
- $using486++;
- grep(s/\.386/\.486/,@out);
- }
-
-sub main'file
- {
- if ($main'mwerks) { push(@out,".section\t.text\n"); }
- else {
- local $tmp=<<___;
+{ my($size,$addr,$reg1,$reg2,$idx)=@_;
+ my($post,$ret);
+
+ if ($size ne "")
+ { $ret .= "$size";
+ $ret .= " PTR" if ($::mwerks);
+ $ret .= " ";
+ }
+ $ret .= "[";
+
+ $addr =~ s/^\s+//;
+ # prepend global references with optional underscore
+ $addr =~ s/^([^\+\-0-9][^\+\-]*)/islabel($1) or "$under$1"/ige;
+ # put address arithmetic expression in parenthesis
+ $addr="($addr)" if ($addr =~ /^.+[\-\+].+$/);
+
+ if (($addr ne "") && ($addr ne 0))
+ { if ($addr !~ /^-/) { $ret .= "$addr+"; }
+ else { $post=$addr; }
+ }
+
+ if ($reg2 ne "")
+ { $idx!=0 or $idx=1;
+ $ret .= "$reg2*$idx";
+ $ret .= "+$reg1" if ($reg1 ne "");
+ }
+ else
+ { $ret .= "$reg1"; }
+
+ $ret .= "$post]";
+ $ret =~ s/\+\]/]/; # in case $addr was the only argument
+
+ $ret;
+}
+sub ::BP { &get_mem("BYTE",@_); }
+sub ::DWP { &get_mem("DWORD",@_); }
+sub ::QWP { &get_mem("QWORD",@_); }
+sub ::BC { (($::mwerks)?"":"BYTE ")."@_"; }
+sub ::DWC { (($::mwerks)?"":"DWORD ")."@_"; }
+
+sub ::file
+{ if ($::mwerks) { push(@out,".section\t.text\n"); }
+ else
+ { my $tmp=<<___;
%ifdef __omf__
-section code use32 class=code
+section code use32 class=code align=64
%else
-section .text
+section .text code align=64
%endif
___
- push(@out,$tmp);
- }
- }
-
-sub main'function_begin
- {
- my($func,$extra)=@_;
-
- push(@labels,$func);
- my($tmp)=<<"EOF";
-global $under$func
-$under$func:
- push ebp
- push ebx
- push esi
- push edi
-EOF
push(@out,$tmp);
- $stack=20;
- }
-
-sub main'function_begin_B
- {
- my($func,$extra)=@_;
- my($tmp)=<<"EOF";
-global $under$func
-$under$func:
-EOF
- push(@out,$tmp);
- $stack=4;
- }
+ }
+}
-sub main'function_end
- {
- my($func)=@_;
+sub ::function_begin_B
+{ my $func=$under.shift;
+ my $tmp=<<___;
+global $func
+align 16
+$func:
+___
+ push(@out,$tmp);
+ $::stack=4;
+}
+sub ::function_end_B
+{ my $i;
+ foreach $i (%label) { undef $label{$i} if ($label{$i} =~ /^$prfx/); }
+ $::stack=0;
+}
- my($tmp)=<<"EOF";
- pop edi
- pop esi
+sub ::file_end
+{ # try to detect if SSE2 or MMX extensions were used on Win32...
+ if ($::win32 && grep {/\s+[x]*mm[0-7]/i} @out)
+ { # One can argue that it's wasteful to craft every
+ # SSE/MMX module with this snippet... Well, it's 72
+ # bytes long and for the moment we have two modules.
+ # Let's argue when we have 7 modules or so...
+ #
+ # $1<<10 sets a reserved bit to signal that variable
+ # was initialized already...
+ my $tmp=<<___;
+align 16
+${lprfx}OPENSSL_ia32cap_init:
+ lea edx,[${under}OPENSSL_ia32cap_P]
+ cmp DWORD [edx],0
+ jne NEAR ${lprfx}nocpuid
+ mov DWORD [edx],1<<10
+ pushfd
+ pop eax
+ mov ecx,eax
+ xor eax,1<<21
+ push eax
+ popfd
+ pushfd
+ pop eax
+ xor eax,ecx
+ bt eax,21
+ jnc NEAR ${lprfx}nocpuid
+ push edi
+ push ebx
+ mov edi,edx
+ mov eax,1
+ cpuid
+ or edx,1<<10
+ mov DWORD [edi],edx
pop ebx
- pop ebp
- ret
-EOF
- push(@out,$tmp);
- $stack=0;
- %label=();
- }
-
-sub main'function_end_B
- {
- $stack=0;
- %label=();
- }
-
-sub main'function_end_A
- {
- my($func)=@_;
-
- my($tmp)=<<"EOF";
pop edi
- pop esi
- pop ebx
- pop ebp
+${lprfx}nocpuid:
ret
-EOF
- push(@out,$tmp);
- }
-sub main'file_end
- {
- }
-
-sub main'wparam
- {
- my($num)=@_;
-
- return(&main'DWP($stack+$num*4,"esp","",0));
- }
-
-sub main'swtmp
- {
- return(&main'DWP($_[0]*4,"esp","",0));
- }
-
-# Should use swtmp, which is above esp. Linix can trash the stack above esp
-#sub main'wtmp
-# {
-# my($num)=@_;
-#
-# return(&main'DWP(-(($num+1)*4),"esp","",0));
-# }
-
-sub main'comment
- {
- foreach (@_)
- {
- push(@out,"\t; $_\n");
- }
- }
+segment .CRT\$XCU rdata align=4
+dd ${lprfx}OPENSSL_ia32cap_init
+segment .bss
+common ${under}OPENSSL_ia32cap_P 4
+___
+ push (@out,$tmp);
+ }
+}
-sub main'public_label
- {
- $label{$_[0]}="${under}${_[0]}" if (!defined($label{$_[0]}));
- push(@out,"global\t$label{$_[0]}\n");
- }
+sub ::comment { foreach (@_) { push(@out,"\t; $_\n"); } }
-sub main'label
- {
- if (!defined($label{$_[0]}))
- {
- $label{$_[0]}="\@${label}${_[0]}";
- $label++;
- }
- return($label{$_[0]});
- }
+sub islabel # see is argument is known label
+{ my $i;
+ foreach $i (%label) { return $label{$i} if ($label{$i} eq $_[0]); }
+ undef;
+}
-sub main'set_label
- {
- if (!defined($label{$_[0]}))
- {
- $label{$_[0]}="\@${label}${_[0]}";
- $label++;
- }
- if ($_[1]!=0 && $_[1]>1)
- {
- main'align($_[1]);
- }
- push(@out,"$label{$_[0]}:\n");
- }
+sub ::external_label
+{ push(@labels,@_);
+ foreach (@_)
+ { push(@out,".") if ($::mwerks);
+ push(@out, "extern\t${under}$_\n");
+ }
+}
-sub main'data_byte
- {
- push(@out,(($main'mwerks)?".byte\t":"DB\t").join(',',@_)."\n");
- }
+sub ::public_label
+{ $label{$_[0]}="${under}${_[0]}" if (!defined($label{$_[0]}));
+ push(@out,"global\t$label{$_[0]}\n");
+}
-sub main'data_word
- {
- push(@out,(($main'mwerks)?".long\t":"DD\t").join(',',@_)."\n");
- }
+sub ::label
+{ if (!defined($label{$_[0]}))
+ { $label{$_[0]}="${lprfx}${label}${_[0]}"; $label++; }
+ $label{$_[0]};
+}
-sub main'align
- {
- push(@out,".") if ($main'mwerks);
- push(@out,"align\t$_[0]\n");
- }
+sub ::set_label
+{ my $label=&::label($_[0]);
+ &::align($_[1]) if ($_[1]>1);
+ push(@out,"$label{$_[0]}:\n");
+}
-sub out1p
- {
- my($name,$p1)=@_;
- my($l,$t);
+sub ::data_byte
+{ push(@out,(($::mwerks)?".byte\t":"db\t").join(',',@_)."\n"); }
- push(@out,"\t$name\t".&conv($p1)."\n");
- }
+sub ::data_word
+{ push(@out,(($::mwerks)?".long\t":"dd\t").join(',',@_)."\n"); }
-sub main'picmeup
- {
- local($dst,$sym)=@_;
- &main'lea($dst,&main'DWP($sym));
- }
+sub ::align
+{ push(@out,".") if ($::mwerks); push(@out,"align\t$_[0]\n"); }
-sub main'blindpop { &out1("pop",@_); }
+sub ::picmeup
+{ my($dst,$sym)=@_;
+ &::lea($dst,&::DWP($sym));
+}
-sub main'initseg
- {
- local($f)=@_;
- if ($main'win32)
- {
- local($tmp)=<<___;
-segment .CRT\$XCU data
-extern $under$f
-DD $under$f
+sub ::initseg
+{ my($f)=$under.shift;
+ if ($::win32)
+ { my($tmp)=<<___;
+segment .CRT\$XCU rdata align=4
+extern $f
+dd $f
___
- push(@out,$tmp);
- }
- }
+ push(@out,$tmp);
+ }
+}
1;
-#!/usr/local/bin/perl
+#!/usr/bin/env perl
package x86unix; # GAS actually...
+*out=\@::out;
+
$label="L000";
$const="";
$constl=0;
-$align=($main'aout)?"4":"16";
-$under=($main'aout or $main'coff)?"_":"";
-$dot=($main'aout)?"":".";
-$com_start="#" if ($main'aout or $main'coff);
-
-sub main'asm_init_output { @out=(); }
-sub main'asm_get_output { return(@out); }
-sub main'get_labels { return(@labels); }
-sub main'external_label { push(@labels,@_); }
-
-if ($main'cpp)
- {
- $align="ALIGN";
- $under="";
- $com_start='/*';
- $com_end='*/';
- }
-
-%lb=( 'eax', '%al',
- 'ebx', '%bl',
- 'ecx', '%cl',
- 'edx', '%dl',
- 'ax', '%al',
- 'bx', '%bl',
- 'cx', '%cl',
- 'dx', '%dl',
- );
-
-%hb=( 'eax', '%ah',
- 'ebx', '%bh',
- 'ecx', '%ch',
- 'edx', '%dh',
- 'ax', '%ah',
- 'bx', '%bh',
- 'cx', '%ch',
- 'dx', '%dh',
- );
-
-%regs=( 'eax', '%eax',
- 'ebx', '%ebx',
- 'ecx', '%ecx',
- 'edx', '%edx',
- 'esi', '%esi',
- 'edi', '%edi',
- 'ebp', '%ebp',
- 'esp', '%esp',
-
- 'mm0', '%mm0',
- 'mm1', '%mm1',
- 'mm2', '%mm2',
- 'mm3', '%mm3',
- 'mm4', '%mm4',
- 'mm5', '%mm5',
- 'mm6', '%mm6',
- 'mm7', '%mm7',
-
- 'xmm0', '%xmm0',
- 'xmm1', '%xmm1',
- 'xmm2', '%xmm2',
- 'xmm3', '%xmm3',
- 'xmm4', '%xmm4',
- 'xmm5', '%xmm5',
- 'xmm6', '%xmm6',
- 'xmm7', '%xmm7',
- );
-
-%reg_val=(
- 'eax', 0x00,
- 'ebx', 0x03,
- 'ecx', 0x01,
- 'edx', 0x02,
- 'esi', 0x06,
- 'edi', 0x07,
- 'ebp', 0x05,
- 'esp', 0x04,
- );
-
-sub main'LB
- {
- (defined($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($ret);
- }
-
-sub main'QWP
- {
- return(&main'DWP(@_));
- }
-
-sub main'BP
- {
- return(&main'DWP(@_));
- }
-
-sub main'BC
- {
- return @_;
- }
-
-sub main'DWC
- {
- return @_;
- }
-
-#sub main'BP
-# {
-# local($addr,$reg1,$reg2,$idx)=@_;
+$align=($::aout)?"4":"16";
+$under=($::aout or $::coff)?"_":"";
+$dot=($::aout)?"":".";
+$com_start="#" if ($::aout or $::coff);
+
+sub opsize()
+{ my $reg=shift;
+ if ($reg =~ m/^%e/o) { "l"; }
+ elsif ($reg =~ m/^%[a-d][hl]$/o) { "b"; }
+ elsif ($reg =~ m/^%[xm]/o) { undef; }
+ else { "w"; }
+}
+
+# swap arguments;
+# expand opcode with size suffix;
+# prefix numeric constants with $;
+sub ::generic
+{ my($opcode,$dst,$src)=@_;
+ my($tmp,$suffix,@arg);
+
+ if (defined($src))
+ { $src =~ s/^(e?[a-dsixphl]{2})$/%$1/o;
+ $src =~ s/^(x?mm[0-7])$/%$1/o;
+ $src =~ s/^(\-?[0-9]+)$/\$$1/o;
+ $src =~ s/^(\-?0x[0-9a-f]+)$/\$$1/o;
+ push(@arg,$src);
+ }
+ if (defined($dst))
+ { $dst =~ s/^(\*?)(e?[a-dsixphl]{2})$/$1%$2/o;
+ $dst =~ s/^(x?mm[0-7])$/%$1/o;
+ $dst =~ s/^(\-?[0-9]+)$/\$$1/o if(!defined($src));
+ $dst =~ s/^(\-?0x[0-9a-f]+)$/\$$1/o if(!defined($src));
+ push(@arg,$dst);
+ }
+
+ if ($dst =~ m/^%/o) { $suffix=&opsize($dst); }
+ elsif ($src =~ m/^%/o) { $suffix=&opsize($src); }
+ else { $suffix="l"; }
+ undef $suffix if ($dst =~ m/^%[xm]/o || $src =~ m/^%[xm]/o);
+
+ if ($#_==0) { &::emit($opcode); }
+ elsif ($opcode =~ m/^j/o && $#_==1) { &::emit($opcode,@arg); }
+ elsif ($opcode eq "call" && $#_==1) { &::emit($opcode,@arg); }
+ else { &::emit($opcode.$suffix,@arg);}
+
+ 1;
+}
#
-# $ret="";
+# opcodes not covered by ::generic above, mostly inconsistent namings...
#
-# $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \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($ret);
-# }
-
-sub main'mov { &out2("movl",@_); }
-sub main'movb { &out2("movb",@_); }
-sub main'and { &out2("andl",@_); }
-sub main'or { &out2("orl",@_); }
-sub main'shl { &out2("sall",@_); }
-sub main'shr { &out2("shrl",@_); }
-sub main'xor { &out2("xorl",@_); }
-sub main'xorb { &out2("xorb",@_); }
-sub main'add { &out2($_[0]=~/%[a-d][lh]/?"addb":"addl",@_); }
-sub main'adc { &out2("adcl",@_); }
-sub main'sub { &out2("subl",@_); }
-sub main'sbb { &out2("sbbl",@_); }
-sub main'rotl { &out2("roll",@_); }
-sub main'rotr { &out2("rorl",@_); }
-sub main'exch { &out2($_[0]=~/%[a-d][lh]/?"xchgb":"xchgl",@_); }
-sub main'cmp { &out2("cmpl",@_); }
-sub main'lea { &out2("leal",@_); }
-sub main'mul { &out1("mull",@_); }
-sub main'div { &out1("divl",@_); }
-sub main'jmp { &out1("jmp",@_); }
-sub main'jmp_ptr { &out1p("jmp",@_); }
-sub main'je { &out1("je",@_); }
-sub main'jle { &out1("jle",@_); }
-sub main'jne { &out1("jne",@_); }
-sub main'jnz { &out1("jnz",@_); }
-sub main'jz { &out1("jz",@_); }
-sub main'jge { &out1("jge",@_); }
-sub main'jl { &out1("jl",@_); }
-sub main'ja { &out1("ja",@_); }
-sub main'jae { &out1("jae",@_); }
-sub main'jb { &out1("jb",@_); }
-sub main'jbe { &out1("jbe",@_); }
-sub main'jc { &out1("jc",@_); }
-sub main'jnc { &out1("jnc",@_); }
-sub main'jno { &out1("jno",@_); }
-sub main'dec { &out1("decl",@_); }
-sub main'inc { &out1($_[0]=~/%[a-d][hl]/?"incb":"incl",@_); }
-sub main'push { &out1("pushl",@_); $stack+=4; }
-sub main'pop { &out1("popl",@_); $stack-=4; }
-sub main'pushf { &out0("pushfl"); $stack+=4; }
-sub main'popf { &out0("popfl"); $stack-=4; }
-sub main'not { &out1("notl",@_); }
-sub main'call { my $pre=$under;
- foreach $i (%label)
- { if ($label{$i} eq $_[0]) { $pre=''; last; } }
- &out1("call",$pre.$_[0]);
- }
-sub main'call_ptr { &out1p("call",@_); }
-sub main'ret { &out0("ret"); }
-sub main'nop { &out0("nop"); }
-sub main'test { &out2("testl",@_); }
-sub main'bt { &out2("btl",@_); }
-sub main'leave { &out0("leave"); }
-sub main'cpuid { &out0(".byte\t0x0f,0xa2"); }
-sub main'rdtsc { &out0(".byte\t0x0f,0x31"); }
-sub main'halt { &out0("hlt"); }
-sub main'movz { &out2("movzbl",@_); }
-sub main'neg { &out1("negl",@_); }
-sub main'cld { &out0("cld"); }
-
-# SSE2
-sub main'emms { &out0("emms"); }
-sub main'movd { &out2("movd",@_); }
-sub main'movdqu { &out2("movdqu",@_); }
-sub main'movdqa { &out2("movdqa",@_); }
-sub main'movdq2q{ &out2("movdq2q",@_); }
-sub main'movq2dq{ &out2("movq2dq",@_); }
-sub main'paddq { &out2("paddq",@_); }
-sub main'pmuludq{ &out2("pmuludq",@_); }
-sub main'psrlq { &out2("psrlq",@_); }
-sub main'psllq { &out2("psllq",@_); }
-sub main'pxor { &out2("pxor",@_); }
-sub main'por { &out2("por",@_); }
-sub main'pand { &out2("pand",@_); }
-sub main'movq {
- local($p1,$p2,$optimize)=@_;
- if ($optimize && $p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/)
- # movq between mmx registers can sink Intel CPUs
- { push(@out,"\tpshufw\t\$0xe4,%$p2,%$p1\n"); }
- else { &out2("movq",@_); }
- }
-sub main'pshufw {
- local ($dst,$src,$magic)=@_;
- push(@out,"\tpshufw\t\$$magic,%$src,%$dst\n");
- }
-sub main'punpckldq { &out2("punpckldq",@_); }
-sub main'pcmpgtb { &out2("pcmpgtb",@_); }
-sub main'paddb { &out2("paddb",@_); }
-sub main'psrld { &out2("psrld",@_); }
-sub main'pslld { &out2("pslld",@_); }
-
-# 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"
-EOF
- push(@out,$tmp);
- }
-
-sub main'function_begin
- {
- local($func)=@_;
-
- &main'external_label($func);
- $func=$under.$func;
-
- local($tmp)=<<"EOF";
-.text
-.globl $func
-EOF
- push(@out,$tmp);
- if ($main'cpp)
- { $tmp=push(@out,"TYPE($func,\@function)\n"); }
- elsif ($main'coff)
- { $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
- elsif ($main'aout and !$main'pic)
- { }
- else { $tmp=push(@out,".type\t$func,\@function\n"); }
- push(@out,".align\t$align\n");
- push(@out,"$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
-.globl $func
-EOF
- push(@out,$tmp);
- if ($main'cpp)
- { push(@out,"TYPE($func,\@function)\n"); }
- elsif ($main'coff)
- { $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
- elsif ($main'aout and !$main'pic)
- { }
- else { push(@out,".type $func,\@function\n"); }
- push(@out,".align\t$align\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
-${dot}L_${func}_end:
-EOF
- push(@out,$tmp);
-
- if ($main'cpp)
- { push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); }
- elsif ($main'coff or $main'aout)
- { }
- else { push(@out,".size\t$func,${dot}L_${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.$func;
-
- push(@out,"${dot}L_${func}_end:\n");
- if ($main'cpp)
- { push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); }
- elsif ($main'coff or $main'aout)
- { }
- else { push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); }
- push(@out,".ident \"$func\"\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 (!defined($com_start) or $main'elf)
- { # Regarding $main'elf above...
+sub ::movz { &::movzb(@_); }
+sub ::pushf { &::pushfl; }
+sub ::popf { &::popfl; }
+sub ::cpuid { &::emit(".byte\t0x0f,0xa2"); }
+sub ::rdtsc { &::emit(".byte\t0x0f,0x31"); }
+
+sub ::call { &::emit("call",(&islabel($_[0]) or "$under$_[0]")); }
+sub ::call_ptr { &::generic("call","*$_[0]"); }
+sub ::jmp_ptr { &::generic("jmp","*$_[0]"); }
+
+*::bswap = sub { &::emit("bswap","%$_[0]"); } if (!$::i386);
+
+# chosen SSE 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",@_); }
+}
+sub ::pshufw
+{ my($dst,$src,$magic)=@_;
+ &::emit("pshufw","\$$magic","%$src","%$dst");
+}
+
+sub ::DWP
+{ my($addr,$reg1,$reg2,$idx)=@_;
+ my $ret="";
+
+ $addr =~ s/^\s+//;
+ # prepend global references with optional underscore
+ $addr =~ s/^([^\+\-0-9][^\+\-]*)/islabel($1) or "$under$1"/ige;
+
+ $reg1 = "%$reg1" if ($reg1);
+ $reg2 = "%$reg2" if ($reg2);
+
+ $ret .= $addr if (($addr ne "") && ($addr ne 0));
+
+ if ($reg2)
+ { $idx!= 0 or $idx=1;
+ $ret .= "($reg1,$reg2,$idx)";
+ }
+ elsif ($reg1)
+ { $ret .= "($reg1)"; }
+
+ $ret;
+}
+sub ::QWP { &::DWP(@_); }
+sub ::BP { &::DWP(@_); }
+sub ::BC { @_; }
+sub ::DWC { @_; }
+
+sub ::file
+{ push(@out,".file\t\"$_[0].s\"\n"); }
+
+sub ::function_begin_B
+{ my($func,$extra)=@_;
+ my $tmp;
+
+ &::external_label($func);
+ $func=$under.$func;
+
+ push(@out,".text\n.globl\t$func\n");
+ if ($::coff)
+ { push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
+ elsif ($::aout and !$::pic)
+ { }
+ else
+ { push(@out,".type $func,\@function\n"); }
+ push(@out,".align\t$align\n");
+ push(@out,"$func:\n");
+ $::stack=4;
+}
+
+sub ::function_end_B
+{ my($func)=@_;
+
+ $func=$under.$func;
+ push(@out,"${dot}L_${func}_end:\n");
+ if ($::elf)
+ { push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); }
+ $::stack=0;
+ %label=();
+}
+
+sub ::comment
+ {
+ if (!defined($com_start) or $::elf)
+ { # Regarding $::elf above...
# GNU and SVR4 as'es use different comment delimiters,
push(@out,"\n"); # so we just skip ELF comments...
return;
}
}
-sub main'public_label
- {
- $label{$_[0]}="${under}${_[0]}" if (!defined($label{$_[0]}));
- push(@out,".globl\t$label{$_[0]}\n");
- }
-
-sub main'label
- {
- if (!defined($label{$_[0]}))
- {
- $label{$_[0]}="${dot}${label}${_[0]}";
- $label++;
- }
- return($label{$_[0]});
- }
-
-sub main'set_label
- {
- if (!defined($label{$_[0]}))
- {
- $label{$_[0]}="${dot}${label}${_[0]}";
- $label++;
- }
- if ($_[1]!=0)
- {
- if ($_[1]>1) { main'align($_[1]); }
- else { push(@out,".align $align\n"); }
- }
- push(@out,"$label{$_[0]}:\n");
- }
-
-sub main'file_end
- {
- # try to detect if SSE2 or MMX extensions were used on ELF platform...
- if ($main'elf && grep {/%[x]*mm[0-7]/i} @out) {
- local($tmp);
-
- push (@out,"\n.section\t.bss\n");
- push (@out,".comm\t${under}OPENSSL_ia32cap_P,4,4\n");
-
- push (@out,".section\t.init\n");
- # One can argue that it's wasteful to craft every
- # SSE/MMX module with this snippet... Well, it's 72
- # bytes long and for the moment we have two modules.
- # Let's argue when we have 7 modules or so...
- #
- # $1<<10 sets a reserved bit to signal that variable
- # was initialized already...
- &main'picmeup("edx","OPENSSL_ia32cap_P");
- $tmp=<<___;
- cmpl \$0,(%edx)
- jne 1f
- movl \$1<<10,(%edx)
- pushf
- popl %eax
- movl %eax,%ecx
- xorl \$1<<21,%eax
- pushl %eax
- popf
- pushf
- popl %eax
- xorl %ecx,%eax
- btl \$21,%eax
- jnc 1f
- pushl %edi
- pushl %ebx
- movl %edx,%edi
- movl \$1,%eax
- .byte 0x0f,0xa2
- orl \$1<<10,%edx
- movl %edx,0(%edi)
- popl %ebx
- popl %edi
- jmp 1f
+sub islabel # see is argument is a known label
+{ my $i;
+ foreach $i (%label) { return $label{$i} if ($label{$i} eq $_[0]); }
+ undef;
+}
+
+sub ::external_label { push(@labels,@_); }
+
+sub ::public_label
+{ $label{$_[0]}="${under}${_[0]}" if (!defined($label{$_[0]}));
+ push(@out,".globl\t$label{$_[0]}\n");
+}
+
+sub ::label
+{ if (!defined($label{$_[0]}))
+ { $label{$_[0]}="${dot}${label}${_[0]}"; $label++; }
+ $label{$_[0]};
+}
+
+sub ::set_label
+{ my $label=&::label($_[0]);
+ &::align($_[1]) if ($_[1]>1);
+ push(@out,"$label:\n");
+}
+
+sub ::file_end
+{ # try to detect if SSE2 or MMX extensions were used on ELF platform...
+ if ($::elf && grep {/%[x]?mm[0-7]/i} @out){
+ my $tmp;
+
+ push (@out,"\n.section\t.bss\n");
+ push (@out,".comm\t${under}OPENSSL_ia32cap_P,4,4\n");
+
+ push (@out,".section\t.init\n");
+ # One can argue that it's wasteful to craft every
+ # SSE/MMX module with this snippet... Well, it's 72
+ # bytes long and for the moment we have two modules.
+ # Let's argue when we have 7 modules or so...
+ #
+ # $1<<10 sets a reserved bit to signal that variable
+ # was initialized already...
+ &::picmeup("edx","OPENSSL_ia32cap_P");
+ $tmp=<<___;
+ cmpl \$0,(%edx)
+ jne 1f
+ movl \$1<<10,(%edx)
+ pushf
+ popl %eax
+ movl %eax,%ecx
+ xorl \$1<<21,%eax
+ pushl %eax
+ popf
+ pushf
+ popl %eax
+ xorl %ecx,%eax
+ btl \$21,%eax
+ jnc 1f
+ pushl %edi
+ pushl %ebx
+ movl %edx,%edi
+ movl \$1,%eax
+ .byte 0x0f,0xa2
+ orl \$1<<10,%edx
+ movl %edx,0(%edi)
+ popl %ebx
+ popl %edi
+ jmp 1f
.align $align
1:
___
- push (@out,$tmp);
- }
-
- if ($const ne "")
- {
- push(@out,".section .rodata\n");
- push(@out,$const);
- $const="";
- }
- }
-
-sub main'data_byte
- {
- push(@out,"\t.byte\t".join(',',@_)."\n");
- }
-
-sub main'data_word
- {
- push(@out,"\t.long\t".join(',',@_)."\n");
- }
-
-sub main'align
- {
- my $val=$_[0],$p2,$i;
- if ($main'aout) {
- for ($p2=0;$val!=0;$val>>=1) { $p2++; }
- $val=$p2-1;
- $val.=",0x90";
- }
- push(@out,".align\t$val\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');
- $stack-=4*@_;
- &main'add("esp",4*@_);
- &popvars();
- }
-
-sub pushvars
- {
- &main'pushf();
- &main'push("edx");
- &main'push("ecx");
- &main'push("eax");
- }
-
-sub popvars
- {
- &main'pop("eax");
- &main'pop("ecx");
- &main'pop("edx");
- &main'popf();
+ push (@out,$tmp);
+ }
+
+ if ($const ne "")
+ { push(@out,".section .rodata\n");
+ push(@out,$const);
+ $const="";
+ }
+}
+
+sub ::data_byte { push(@out,".byte\t".join(',',@_)."\n"); }
+sub ::data_word { push(@out,".long\t".join(',',@_)."\n"); }
+
+sub ::align
+{ my $val=$_[0],$p2,$i;
+ if ($::aout)
+ { for ($p2=0;$val!=0;$val>>=1) { $p2++; }
+ $val=$p2-1;
+ $val.=",0x90";
+ }
+ push(@out,".align\t$val\n");
+}
+
+sub ::picmeup
+{ my($dst,$sym,$base,$reflabel)=@_;
+
+ if ($::pic && ($::elf || $::aout))
+ { if (!defined($base))
+ { &::call(&::label("PIC_me_up"));
+ &::set_label("PIC_me_up");
+ &::blindpop($dst);
+ &::add($dst,"\$${under}_GLOBAL_OFFSET_TABLE_+[.-".
+ &::label("PIC_me_up") . "]");
}
-
-sub main'picmeup
- {
- local($dst,$sym,$base,$reflabel)=@_;
-
- if ($main'cpp)
- {
- local($tmp);
- if (!defined($base))
- {
- $tmp=<<___;
-#if (defined(ELF) || defined(SOL)) && defined(PIC)
- 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
-___
- }
- else {
- $tmp=<<___;
-#if (defined(ELF) || defined(SOL)) && defined(PIC)
- leal _GLOBAL_OFFSET_TABLE_+[.-$reflabel]($regs{$base}),$regs{$dst}
- movl $sym\@GOT($regs{$dst}),$regs{$dst}
-#else
- leal $sym,$regs{$dst}
-#endif
-___
- }
- push(@out,$tmp);
- }
- elsif ($main'pic && ($main'elf || $main'aout))
- {
- if (!defined($base))
- {
- &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") . "]");
- }
- else {
- &main'lea($dst,&main'DWP(
- "${under}_GLOBAL_OFFSET_TABLE_+[.-$reflabel]",
- $base));
- }
- &main'mov($dst,&main'DWP($under.$sym."\@GOT",$dst));
- }
else
- {
- &main'lea($dst,&main'DWP($sym));
- }
+ { &::lea($dst,&::DWP("${under}_GLOBAL_OFFSET_TABLE_+[.-$reflabel]",
+ $base));
}
+ &::mov($dst,&::DWP($under.$sym."\@GOT",$dst));
+ }
+ else
+ { &::lea($dst,&::DWP($sym)); }
+}
-sub main'blindpop { &out1("popl",@_); }
+sub ::initseg
+{ my($f)=@_;
+ my($tmp,$ctor);
-sub main'initseg
- {
- local($f)=@_;
- local($tmp);
- if ($main'elf)
- {
- $tmp=<<___;
+ if ($::elf)
+ { $tmp=<<___;
.section .init
call $under$f
jmp .Linitalign
.align $align
.Linitalign:
___
- }
- elsif ($main'coff)
- {
- $tmp=<<___; # applies to both Cygwin and Mingw
+ }
+ elsif ($::coff)
+ { $tmp=<<___; # applies to both Cygwin and Mingw
.section .ctors
.long $under$f
___
- }
- elsif ($main'aout)
- {
- local($ctor)="${under}_GLOBAL_\$I\$$f";
- $tmp=".text\n";
- $tmp.=".type $ctor,\@function\n" if ($main'pic);
- $tmp.=<<___; # OpenBSD way...
+ }
+ elsif ($::aout)
+ { $ctor="${under}_GLOBAL_\$I\$$f";
+ $tmp=".text\n";
+ $tmp.=".type $ctor,\@function\n" if ($::pic);
+ $tmp.=<<___; # OpenBSD way...
.globl $ctor
.align 2
$ctor:
jmp $under$f
___
- }
- push(@out,$tmp) if ($tmp);
- }
+ }
+ push(@out,$tmp) if ($tmp);
+}
1;
projects / oweals / openssl.git / commitdiff