Fixed bug #736
authorSam Lantinga <slouken@libsdl.org>
Wed, 16 Dec 2009 03:02:31 +0000
changeset 3577 72024425b437
parent 3576 5ea08f1c29d0
child 3578 0d1b16ee0bca
Fixed bug #736 Don't use the SSE cache instruction in MMX code if SSE isn't available. :)
src/video/SDL_blit_copy.c
--- a/src/video/SDL_blit_copy.c	Wed Dec 16 02:08:59 2009 +0000
+++ b/src/video/SDL_blit_copy.c	Wed Dec 16 03:02:31 2009 +0000
@@ -65,7 +65,9 @@
 
     __m64 values[8];
     for (i = len / 64; i--;) {
+#ifdef __SSE__
         _mm_prefetch(src, _MM_HINT_NTA);
+#endif
         values[0] = *(__m64 *) (src + 0);
         values[1] = *(__m64 *) (src + 8);
         values[2] = *(__m64 *) (src + 16);