fix 3dnow misdetection on new p4's

diff --git a/src/mesa/x86/common_x86_asm.S b/src/mesa/x86/common_x86_asm.S
index 5e7e39febe5cafb27b7d8a81deec6b917d05af20..a966078b2da40e944d26d5c6b472343138f0d350 100644 (file)
--- 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):