# HG changeset patch
# User Sam Lantinga <slouken@libsdl.org>
# Date 1260932551 0
# Node ID 72024425b437965b74acc19ac321a9bdb31b757c
# Parent  5ea08f1c29d03da62c1acfe1fd06a6494aa6e8b7
Fixed bug #736

Don't use the SSE cache instruction in MMX code if SSE isn't available. :)

diff -r 5ea08f1c29d0 -r 72024425b437 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);