Hi, On Thu, Jan 17, 2013 at 3:29 PM, Vitor Sessak <vitor1...@gmail.com> wrote: > On Wed, Jan 16, 2013 at 1:58 AM, Ronald S. Bultje <rsbul...@gmail.com> wrote: >> +INIT_XMM sse >> +cglobal vorbis_inverse_coupling, 3, 3, 6, mag, ang, block_size >> + movsxdifnidn block_sizeq, block_sized >> + mova m5, [pdw_80000000] >> + lea magq, [magq+block_sizeq*4] >> + lea angq, [angq+block_sizeq*4] >> + neg block_sizeq >> +.loop: >> + mova m0, [magq+block_sizeq*4] >> + mova m1, [angq+block_sizeq*4] >> + xorps m2, m2 >> + xorps m3, m3 >> + cmpleps m2, m0 ; m <= 0.0 >> + cmpleps m3, m1 ; a <= 0.0 >> + andps m2, m5 ; keep only the sign bit > > Am I missing something or we can just do: > > andps m2, m0, m5 > > Instead of the xorps + cmpleps + andps?
I just tried that, but it doesn't pass fate. I'm not really that great at floating-point numbers so I'm not sure if that's expected or not... I like the idea though... Ronald _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
