[FFmpeg-devel] [PATCH] Set sse_deps to mmx, not mmxext.

[Alexis Ballier]

On Mon, 16 Feb 2015 13:31:40 -0300
James Almer <jamrial at gmail.com> wrote:

> On 16/02/15 1:22 PM, Alexis Ballier wrote:
> > [50cd43f2c] changed that silently, while no modern cpu has mmxext:
> > https://en.wikipedia.org/wiki/Extended_MMX
> 
> In this case, mmxext refers to the integer instructions introduced
> with SSE, and not this Cyrix set.
> AMD cpus pre-Athlon XP featured the integer instructions but not the
> float ones. The distinction was made so functions using only the
> integer SSE instructions could be run on them.

thanks for the clarification; please disregard the patch then