#!/usr/local/bin/perl
-# Because the bswapl instruction is not supported for old assembers
-# (it was a new instruction for the 486), I've added .byte xxxx code
-# to put it in.
-# eric 24-Apr-1998
-#
-
package x86unix;
$label="L000";
return(&main'DWP(@_));
}
+sub main'BC
+ {
+ return @_;
+ }
+
+sub main'DWC
+ {
+ return @_;
+ }
+
#sub main'BP
# {
# local($addr,$reg1,$reg2,$idx)=@_;
sub main'inc { &out1("incl",@_); }
sub main'push { &out1("pushl",@_); $stack+=4; }
sub main'pop { &out1("popl",@_); $stack-=4; }
-sub main'bswap { &out1("bswapl",@_); }
sub main'not { &out1("notl",@_); }
sub main'call { &out1("call",$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)=@_;