[FFmpeg-devel] [PATCH]doc/platform: Mention musl where x86_32 is not supported

Guillaume POIRIER poirierg at gmail.com
Mon Oct 3 14:05:47 EEST 2016


On Mon, Oct 3, 2016 at 11:38 AM, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> 2016-10-03 3:52 GMT+02:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:
>> New patch attached.
>> +Compilation with @uref{http://www.musl-libc.org/, musl} on x86-64 is supposed
>> +to work out-of-the-box.
> Is this true or is it just working by accident?

AMD64 dictates that float operations must occur with scalar SSE
operations, so it's not working by accident. It works because float
operations don't use x87 stack (which is shared with MMX)

Best regards,

Wearing a Rolex is like driving an Audi: It says you've got some
money, but nothing to say.
John Lefèvre

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