From: Keith Whitwell <keith@tungstengraphics.com>
Date: Sat, 9 Nov 2002 17:43:58 +0000 (+0000)
Subject: fix 3dnow misdetection on new p4's
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b6d90e50ea363f642027cbf31ae1b98a25443c8a;p=mesa.git

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 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):