Mercurial > sdl-ios-xcode
diff src/video/SDL_blit_copy.c @ 3577:72024425b437
Fixed bug #736
Don't use the SSE cache instruction in MMX code if SSE isn't available. :)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 16 Dec 2009 03:02:31 +0000 |
parents | 99210400e8b9 |
children | f7b03b6838cb |
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--- 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);