Mercurial > sdl-ios-xcode
comparison src/audio/SDL_mixer_MMX.c @ 1411:efb34e597d21
Fixed assembly alignment error on Intel Macs.
Do we really need 16-bit alignment here?
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 21 Feb 2006 19:28:45 +0000 |
| parents | d910939febfa |
| children | 97d0966f4bf7 |
comparison
equal
deleted
inserted
replaced
| 1410:93c48ff6d41f | 1411:efb34e597d21 |
|---|---|
| 57 " psllq $16,%%mm0\n" | 57 " psllq $16,%%mm0\n" |
| 58 " por %%mm1,%%mm0\n" | 58 " por %%mm1,%%mm0\n" |
| 59 " psllq $16,%%mm0\n" | 59 " psllq $16,%%mm0\n" |
| 60 " por %%mm1,%%mm0\n" // mm0 = vol|vol|vol|vol | 60 " por %%mm1,%%mm0\n" // mm0 = vol|vol|vol|vol |
| 61 | 61 |
| 62 ".align 16\n" | 62 ".align 8\n" |
| 63 " .mixloopS16:\n" | 63 " .mixloopS16:\n" |
| 64 | 64 |
| 65 " movq (%1),%%mm1\n" // mm1 = a|b|c|d | 65 " movq (%1),%%mm1\n" // mm1 = a|b|c|d |
| 66 | 66 |
| 67 " movq %%mm1,%%mm2\n" // mm2 = a|b|c|d | 67 " movq %%mm1,%%mm2\n" // mm2 = a|b|c|d |
| 157 " shr $3,%%edx\n" // process 8 bytes per iteration = 8 samples | 157 " shr $3,%%edx\n" // process 8 bytes per iteration = 8 samples |
| 158 | 158 |
| 159 " cmp $0,%%edx\n" | 159 " cmp $0,%%edx\n" |
| 160 " je .endS8\n" | 160 " je .endS8\n" |
| 161 | 161 |
| 162 ".align 16\n" | 162 ".align 8\n" |
| 163 " .mixloopS8:\n" | 163 " .mixloopS8:\n" |
| 164 | 164 |
| 165 " pxor %%mm2,%%mm2\n" // mm2 = 0 | 165 " pxor %%mm2,%%mm2\n" // mm2 = 0 |
| 166 " movq (%1),%%mm1\n" // mm1 = a|b|c|d|e|f|g|h | 166 " movq (%1),%%mm1\n" // mm1 = a|b|c|d|e|f|g|h |
| 167 | 167 |