[MPlayer-users] cpu detection, athlon-4 vs. athlon-xp

[Corey Hickey]

Hi,

I have a family 6, model 8, stepping 0, AthlonXP 2200+ that ./configure
detects as an athlon-4 rather than an athlon-xp. As far as I can tell,
this is a result of the test that starts on line 667 of current cvs,
and is reached if the vendor id is "AuthenticAMD" and the family is 6.

<snip>
if test "$pmodel" -ge 7; then
	proc=athlon-4
elif test "$pmodel" -ge 6; then
	# only Athlon XP supports ssem MP, Duron etc not
	# but most of them are CPUID 666, so check if sse detected
	# btw. there is also athlon-mp opt, but we need extended
	# CPUID to detect if CPU is SMP capable -> athlon-mp ::atmos
if test "$_sse" = yes && test "$pstepping" -ge 2; then
		proc=athlon-xp
	else
		proc=athlon-4
	fi
elif test "$pmodel" -ge 4; then
	proc=athlon-tbird
else
	proc=athlon # TODO: should the Duron Spitfire be considered a 
Thunderbird instead?
fi
<snip>

Is this correct? Should my CPU be detected as athlon-xp, or as an
athlon-4? Either way, does this result in different optimizations for
gcc-3.2, and does it matter?

Thanks,
Corey