diff options
| author | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2008-06-22 07:05:40 +0000 |
|---|---|---|
| committer | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2008-06-22 07:05:40 +0000 |
| commit | 00eebe3d6a5d8ecd05d76d57eeb4b2b3e91f1d02 (patch) | |
| tree | 187e8fe24f4280218c077172d96d8ea645b0ae09 /libavcodec | |
| parent | 3d9cc27df8786f75d3119b277a58e348c4c7ab12 (diff) | |
Fix add_bytes_mmx and add_bytes_l2_mmx for w < 16
Originally committed as revision 13877 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/i386/dsputil_mmx.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavcodec/i386/dsputil_mmx.c b/libavcodec/i386/dsputil_mmx.c index 53cfe9d848..60511a3bab 100644 --- a/libavcodec/i386/dsputil_mmx.c +++ b/libavcodec/i386/dsputil_mmx.c @@ -482,6 +482,7 @@ static void clear_blocks_mmx(DCTELEM *blocks) static void add_bytes_mmx(uint8_t *dst, uint8_t *src, int w){ x86_reg i=0; asm volatile( + "jmp 2f \n\t" "1: \n\t" "movq (%1, %0), %%mm0 \n\t" "movq (%2, %0), %%mm1 \n\t" @@ -492,8 +493,9 @@ static void add_bytes_mmx(uint8_t *dst, uint8_t *src, int w){ "paddb %%mm0, %%mm1 \n\t" "movq %%mm1, 8(%2, %0) \n\t" "add $16, %0 \n\t" + "2: \n\t" "cmp %3, %0 \n\t" - " jb 1b \n\t" + " js 1b \n\t" : "+r" (i) : "r"(src), "r"(dst), "r"((x86_reg)w-15) ); @@ -504,6 +506,7 @@ static void add_bytes_mmx(uint8_t *dst, uint8_t *src, int w){ static void add_bytes_l2_mmx(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w){ x86_reg i=0; asm volatile( + "jmp 2f \n\t" "1: \n\t" "movq (%2, %0), %%mm0 \n\t" "movq 8(%2, %0), %%mm1 \n\t" @@ -512,8 +515,9 @@ static void add_bytes_l2_mmx(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w){ "movq %%mm0, (%1, %0) \n\t" "movq %%mm1, 8(%1, %0) \n\t" "add $16, %0 \n\t" + "2: \n\t" "cmp %4, %0 \n\t" - " jb 1b \n\t" + " js 1b \n\t" : "+r" (i) : "r"(dst), "r"(src1), "r"(src2), "r"((x86_reg)w-15) ); |