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svolume: add comment

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This commit is contained in:
Wim Taymans 2009-08-19 20:00:28 +02:00
parent 8aa86f5247
commit aeae567f88
1 changed files with 3 additions and 0 deletions
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3
src/pulsecore/svolume_sse.c
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@ -117,6 +117,9 @@ pa_volume_s16ne_sse (int16_t *samples, int32_t *volumes, unsigned channels, unsi
" test $1, %2 \n\t" " test $1, %2 \n\t"
" je 6f \n\t" " je 6f \n\t"
/* FIXME, we can do aligned access of the volume values if we can guarantee
* that the array is 16 bytes aligned, we probably have to do the odd values
* after this then. */
"5: \n\t" /* do samples in groups of 4 */ "5: \n\t" /* do samples in groups of 4 */
" movdqu (%1, %3, 4), %%xmm0 \n\t" /* | v3h | v3l .. v0h | v0l | */ " movdqu (%1, %3, 4), %%xmm0 \n\t" /* | v3h | v3l .. v0h | v0l | */
" movq (%0), %%xmm1 \n\t" /* .. | p3 .. p0 | */ " movq (%0), %%xmm1 \n\t" /* .. | p3 .. p0 | */