On Sat, 17 Nov 2018 15:20:08 +0100 Carl Eugen Hoyos <[email protected]> wrote:
> 2018-11-17 9:09 GMT+01:00, Lauri Kasanen <[email protected]>: > > Carl Eugen Hoyos <[email protected]> wrote: > >> (This is less important atm, but I believe all functions currently > >> in libswscale/ppc compile and run fine on - old - 32bit be hardware > >> as your new function does. > >> My completely inexperienced suspicion is that the instruction that > >> you call "VSX" also exists on Altivec.) > > > > Ref > > http://gcc.gnu.org/onlinedocs/gcc/PowerPC-AltiVec-Built-in-Functions-Available-on-ISA-2_002e06.html#PowerPC-AltiVec-Built-in-Functions-Available-on-ISA-2_002e06 > > > > VSX functions such as vec_vsx_ld were added in ISA 2.06, aka POWER7. > > The instruction vec_vsx_ld is currently only used for little-endian ppc > which I thought did not exist before power7, am I wrong? Looks like there were LE Powers like the 440 already in 1999: https://lwn.net/Articles/408051/ datasheets.chipdb.org/IBM/PowerPC/440/PowerPC-440-Core.pdf - Lauri _______________________________________________ ffmpeg-devel mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
