[x264-devel] [patch] AMD64 support for x264 codec

[Josef Zlomek]

Hi,

I have adapted the i386 assembler code of x264 codec to amd64 architecture.
I have changed the calling convention according to AMD64 ABI
(http://www.x86-64.org/documentation/abi-0.95.pdf) and made several minor
optimizations because amd64 has more registers.
I have left the MMX code intact, it might be possible to rewrite it to
SSE using 16 registers to improve speed of the codec.
Some code (like CPU features detection) might be useless.

The patch is available at http://zlomek.jikos.cz/x264-amd64.patch
The assembler code can be compiled by yasm 0.4.0.

Regards,

Josef Zlomek
Xeris
www.xeris.cz

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