[MPlayer-dev-eng] [PATCH] TOOLS/cpuinfo.c: correct k6_mtrr detection

[Zuxy]

Hi,

Two years ago Diego added '{ 32, "k6_mtrr", "Memory Type Range
Registers" }' to TOOLS/cpuinfo.c. However, the instruction "sal eax,
32" is in effect identical to "sal eax, 0", so what cpuinfo.c really
checked is bit 0 of the extended feature string, i.e. built-in FPU. As
a consequence k6_mtrr was reported on virtually every AMD CPU.
However, only some K6-2 and K6-III supports this type of MTRR,
including neither K6, which dosen't have any MTRR, nor Athlons, which
implement MTRR in a way compliant with Intel P6.

The attached patch corrects this, plus a lot of new feature bits that
pave the way for future optimizations to mplayer, including SSE3.

--
Zuxy
Beauty is truth,
While truth is beauty.
PGP KeyID: E8555ED6
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