diff options
| author | gpoirier <gpoirier@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2005-10-04 21:06:07 +0000 |
|---|---|---|
| committer | gpoirier <gpoirier@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2005-10-04 21:06:07 +0000 |
| commit | ac9e6666a3a977c5d2aaeaf624a976ee0f5e7f3b (patch) | |
| tree | 2de6e899f2ba3b88cdb089d9c7db777f54b3a4ac /cpudetect.c | |
| parent | 9cae258a42501d074b48a270e16d2bf615c54f20 (diff) | |
| download | mpv-ac9e6666a3a977c5d2aaeaf624a976ee0f5e7f3b.tar.bz2 mpv-ac9e6666a3a977c5d2aaeaf624a976ee0f5e7f3b.tar.xz | |
according to Intel/AMD official documentations, CPU family should be displayed as
the sum of CPUID's family field and extended family field when a CPU has a CPUID
family 0xF.
Patch by Zuxy <zuxy POIS meng AH gmail POIS com>
Original thread:
Date: Oct 2, 2005 11:08 AM
Subject: [MPlayer-dev-eng] [Patch] Correction of P4 family CPUs detection in cputable.h
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16663 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'cpudetect.c')
| -rw-r--r-- | cpudetect.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/cpudetect.c b/cpudetect.c index af85c7fdab..09fe43d323 100644 --- a/cpudetect.c +++ b/cpudetect.c @@ -120,9 +120,12 @@ void GetCpuCaps( CpuCaps *caps) do_cpuid(0x00000001, regs2); caps->cpuType=(regs2[0] >> 8)&0xf; + +// see AMD64 Architecture Programmer's Manual, Volume 3: General-purpose and +// System Instructions, Table 3-2: Effective family computation, page 120. if(caps->cpuType==0xf){ - // use extended family (P4, IA64) - caps->cpuType=8+((regs2[0]>>20)&255); + // use extended family (P4, IA64, K8) + caps->cpuType=0xf+((regs2[0]>>20)&255); } caps->cpuStepping=regs2[0] & 0xf; |