perlasm/x86* update: support for 3 and 4 argument instructions.
[openssl.git] / crypto / perlasm / x86gas.pl
index e3fbb94..6eab727 100644 (file)
@@ -25,24 +25,20 @@ sub opsize()
 # 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                       { $suffix="l";           }
@@ -71,19 +67,6 @@ sub ::jmp_ptr        { &::generic("jmp","*$_[0]");   }
 
 *::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="";