Mercurial > sdl-ios-xcode
changeset 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 | 5ea08f1c29d0 |
| children | 0d1b16ee0bca |
| files | src/video/SDL_blit_copy.c |
| diffstat | 1 files changed, 2 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- 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);