- &bt (&DWP(0,"ecx"),26);
- &jnc (&label("no_sse2"));
- &pxor ("xmm0","xmm0");
- &pxor ("xmm1","xmm1");
- &pxor ("xmm2","xmm2");
- &pxor ("xmm3","xmm3");
- &pxor ("xmm4","xmm4");
- &pxor ("xmm5","xmm5");
- &pxor ("xmm6","xmm6");
- &pxor ("xmm7","xmm7");
-&set_label("no_sse2");
- # just a bunch of fldz to zap the fp/mm bank...
- &data_word(0xeed9eed9,0xeed9eed9,0xeed9eed9,0xeed9eed9);
- &emms ();
+ if ($sse2) {
+ &bt (&DWP(0,"ecx"),26);
+ &jnc (&label("no_sse2"));
+ &pxor ("xmm0","xmm0");
+ &pxor ("xmm1","xmm1");
+ &pxor ("xmm2","xmm2");
+ &pxor ("xmm3","xmm3");
+ &pxor ("xmm4","xmm4");
+ &pxor ("xmm5","xmm5");
+ &pxor ("xmm6","xmm6");
+ &pxor ("xmm7","xmm7");
+ &set_label("no_sse2");
+ }
+ # just a bunch of fldz to zap the fp/mm bank followed by finit...
+ &data_word(0xeed9eed9,0xeed9eed9,0xeed9eed9,0xeed9eed9,0x90e3db9b);