From: Julian Seward <jseward@acm.org>
Date: Sat, 4 Dec 2004 01:45:56 +0000 (+0000)
Subject: Set host FPU mode to the default mode expected by VEX generated code.
X-Git-Tag: svn/VALGRIND_3_0_0~1139
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c5b50284b3fd9dfa029b2b8bb6ebf9d5e041205;p=thirdparty%2Fvalgrind.git

Set host FPU mode to the default mode expected by VEX generated code.
ToDo: set SSE control word correctly too, and also D flag.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3179
---

diff --git a/coregrind/x86/dispatch.S b/coregrind/x86/dispatch.S
index 4cf8e21255..6c5c4e78c1 100644
--- a/coregrind/x86/dispatch.S
+++ b/coregrind/x86/dispatch.S
@@ -66,6 +66,12 @@ VG_(run_innerloop):
 	/* fetch %EIP into %eax */
 	movl	VG_(instr_ptr_offset), %esi
 	movl	(%ebp, %esi, 1), %eax
+
+	/* set host FPU mode to the default mode expected 
+	   by VEX-generated code. */
+	pushl	$0x037F
+	fldcw	0(%esp)
+	addl	$4, %esp
 	
 	/* fall into main loop */