[FFmpeg-devel] [PATCH] read_time() for SPARC

[Jeff Downs]

On Thu, 9 Sep 2010, M?ns Rullg?rd wrote:

> Michael Kostylev <michael.kostylev at gmail.com> writes:
> 
> >> The presence of __sparc_v9__ clearly does not imply we are allowed
> >> to use 64-bit registers; __arch64__ does.
> >
> > __sparc_v9__ means the v9 hardware, __arch64__ means the v9 abi.
> 
> Exactly, and without the v9 ABI we can't use 64-bit registers.

This is inaccurate.  See:
http://developers.sun.com/solaris/articles/sparcv9abi.html

Specifically, global registers (g0-g7) are 64-bit in (the poorly 
documented) v8plus ABI.

	-Jeff