undef $label;
undef $opcode;
- undef $dst;
- undef $src;
undef $sz;
+ undef @args;
if ($label=label->re(\$line)) { print $label->out(); }
if (directive->re(\$line)) {
printf "%s",directive->out();
- } elsif ($opcode=opcode->re(\$line)) { ARGUMENT: {
+ } elsif ($opcode=opcode->re(\$line)) { ARGUMENT: while (1) {
+ my $arg;
- if ($src=register->re(\$line)) { opcode->size($src->size()); }
- elsif ($src=const->re(\$line)) { }
- elsif ($src=ea->re(\$line)) { }
- elsif ($src=expr->re(\$line)) { }
+ if ($arg=register->re(\$line)) { opcode->size($arg->size()); }
+ elsif ($arg=const->re(\$line)) { }
+ elsif ($arg=ea->re(\$line)) { }
+ elsif ($arg=expr->re(\$line)) { }
+ else { last ARGUMENT; }
- last ARGUMENT if ($line !~ /^,/);
-
- $line = substr($line,1); $line =~ s/^\s+//;
+ push @args,$arg;
- if ($dst=register->re(\$line)) { opcode->size($dst->size()); }
- elsif ($dst=const->re(\$line)) { }
- elsif ($dst=ea->re(\$line)) { }
+ last ARGUMENT if ($line !~ /^,/);
+ $line =~ s/^,\s*//;
} # ARGUMENT:
$sz=opcode->size();
- if (defined($dst)) {
+ if ($#args>=0) {
+ my $insn;
if ($gas) {
- printf "\t%s\t%s,%s", $opcode->out($dst->size()),
- $src->out($sz),$dst->out($sz);
+ $insn = $opcode->out($#args>=1?$args[$#args]->size():$sz);
} else {
+ $insn = $opcode->out();
+ @args = reverse(@args);
undef $sz if ($nasm && $opcode->mnemonic() eq "lea");
- printf "\t%s\t%s,%s", $opcode->out(),
- $dst->out($sz),$src->out($sz);
}
- } elsif (defined($src)) {
- printf "\t%s\t%s",$opcode->out(),$src->out($sz);
+ for (@args) { $_ = $_->out($sz); }
+ printf "\t%s\t%s", $insn, join(",",@args);
} else {
printf "\t%s",$opcode->out();
}
sub ::AUTOLOAD
{ my $opcode = $AUTOLOAD;
- die "more than 2 arguments passed to $opcode" if ($#_>1);
+ die "more than 4 arguments passed to $opcode" if ($#_>3);
$opcode =~ s/.*:://;
if ($opcode =~ /^push/) { $stack+=4; }
sub ::exch { &xchg(@_); }
sub ::halt { &hlt; }
sub ::movz { &movzx(@_); }
-sub ::pushf { &::pushfd; }
-sub ::popf { &::popfd; }
+sub ::pushf { &pushfd; }
+sub ::popf { &popfd; }
# 3 argument instructions
sub ::movq
else
{ &::generic("movq",@_); }
}
-sub ::pshufw { &::emit("pshufw",@_); }
-sub ::shld { &::emit("shld",@_); }
-sub ::shrd { &::emit("shrd",@_); }
# label management
$lbdecor="L"; # local label decoration, set by package
# 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);
+{ my($opcode,@arg)=@_;
+ my($suffix,$dst,$src);
+
+ @arg=reverse(@arg);
+
+ for (@arg)
+ { s/^(\*?)(e?[a-dsixphl]{2})$/$1%$2/o; # gp registers
+ s/^([xy]?mm[0-7])$/%$1/o; # xmm/mmx registers
+ s/^(\-?[0-9]+)$/\$$1/o; # constants
+ s/^(\-?0x[0-9a-f]+)$/\$$1/o; # constants
}
+ $dst = $arg[$#arg] if ($#arg>=0);
+ $src = $arg[$#arg-1] if ($#arg>=1);
if ($dst =~ m/^%/o) { $suffix=&opsize($dst); }
elsif ($src =~ m/^%/o) { $suffix=&opsize($src); }
else { $suffix="l"; }
*::bswap = sub { &::emit("bswap","%$_[0]"); } if (!$::i386);
-*::pshufw = sub
-{ my($dst,$src,$magic)=@_;
- &::emit("pshufw","\$$magic","%$src","%$dst");
-};
-*::shld = sub
-{ my($dst,$src,$bits)=@_;
- &::emit("shldl",$bits eq "cl"?"%cl":"\$$bits","%$src","%$dst");
-};
-*::shrd = sub
-{ my($dst,$src,$bits)=@_;
- &::emit("shrdl",$bits eq "cl"?"%cl":"\$$bits","%$src","%$dst");
-};
-
sub ::DWP
{ my($addr,$reg1,$reg2,$idx)=@_;
my $ret="";
{ my ($opcode,@arg)=@_;
# fix hexadecimal constants
- $arg[0] =~ s/0x([0-9a-f]+)/0$1h/oi if (defined($arg[0]));
- $arg[1] =~ s/0x([0-9a-f]+)/0$1h/oi if (defined($arg[1]));
+ for (@arg) { s/0x([0-9a-f]+)/0$1h/oi; }
# fix xmm references
$arg[0] =~ s/\b[A-Z]+WORD\s+PTR/XMMWORD PTR/i if ($arg[1]=~/\bxmm[0-7]\b/i);