It causes some kernel mode exception. The code deliberately throws an
SSE exception to see if the OS supports them. The trap handler considers
this as a k-mode exception and bug checks.
See http://jira.reactos.org/browse/CORE-6776
Timo Kreuzer a écrit :
What exactly does it cause? And shouldn't we rather fix that, instead of
disabling optimizations? mesa is already slow enough.
Am 03.04.2013 14:02, schrieb jgar...@svn.reactos.org:
Author: jgardou
Date: Wed Apr 3 12:02:58 2013
New Revision: 58660
URL: http://svn.reactos.org/svn/reactos?rev=58660&view=rev
Log:
[MESA32]
* Disable SSE optimizations, as they only cause mayhem.
Modified:
trunk/reactos/dll/opengl/mesa/src/mesa/CMakeLists.txt
Modified: trunk/reactos/dll/opengl/mesa/src/mesa/CMakeLists.txt
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/opengl/mesa/src/mesa/CMakeLists.txt?rev=58660&r1=58659&r2=58660&view=diff
==============================================================================
--- trunk/reactos/dll/opengl/mesa/src/mesa/CMakeLists.txt [iso-8859-1]
(original)
+++ trunk/reactos/dll/opengl/mesa/src/mesa/CMakeLists.txt [iso-8859-1]
Wed Apr 3 12:02:58 2013
@@ -33,17 +33,18 @@
x86/3dnow_xform3.S
x86/3dnow_xform4.S
x86/3dnow_normal.S
- x86/sse_xform1.S
- x86/sse_xform2.S
- x86/sse_xform3.S
- x86/sse_xform4.S
- x86/sse_normal.S
+ # x86/sse_xform1.S
+ # x86/sse_xform2.S
+ # x86/sse_xform3.S
+ # x86/sse_xform4.S
+ # x86/sse_normal.S
x86/read_rgba_span_x86.S)
add_definitions(
-DUSE_X86_ASM
-DUSE_MMX_ASM
-DUSE_3DNOW_ASM
- -DUSE_SSE_ASM)
+ # -DUSE_SSE_ASM
+ )
endif()
list(APPEND SOURCE
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