diff options
| author | Keith Whitwell <[email protected]> | 2002-11-09 17:43:58 +0000 |
|---|---|---|
| committer | Keith Whitwell <[email protected]> | 2002-11-09 17:43:58 +0000 |
| commit | b6d90e50ea363f642027cbf31ae1b98a25443c8a (patch) | |
| tree | 7df45adfe8ec7939b631b12fdb6b87a103678434 /src/mesa/x86/common_x86_asm.S | |
| parent | aa80f0548499f693a0fda1bdab5af416f21025e8 (diff) | |
fix 3dnow misdetection on new p4's
Diffstat (limited to 'src/mesa/x86/common_x86_asm.S')
| -rw-r--r-- | src/mesa/x86/common_x86_asm.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/mesa/x86/common_x86_asm.S b/src/mesa/x86/common_x86_asm.S index 5e7e39febe5..a966078b2da 100644 --- a/src/mesa/x86/common_x86_asm.S +++ b/src/mesa/x86/common_x86_asm.S @@ -1,4 +1,4 @@ -/* $Id: common_x86_asm.S,v 1.12 2002/09/19 16:07:32 brianp Exp $ */ +/* $Id: common_x86_asm.S,v 1.13 2002/11/09 17:43:58 keithw Exp $ */ /* * Mesa 3-D graphics library @@ -112,6 +112,11 @@ GLNAME( _mesa_identify_x86_cpu_features ): MOV_L ( CONST(0x1), EAX ) CPUID MOV_L ( EDX, EAX ) + + /* Mask out highest bit, which is used by AMD for 3dnow + * Newer Intel have this bit set, but do not support 3dnow + */ + AND_L ( CONST(0X7FFFFFFF), EAX) JMP ( LLBL(cpuid_done) ) LLBL(cpuid_amd): |