From 3dfa564e70e4804ef118ba94c81233fb85f56ba2 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Fri, 27 Feb 2009 09:23:58 -0800
Subject: X86: Respect segment override prefixes even when there's no ModRM
 byte.

---
 src/arch/x86/emulenv.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/arch/x86/emulenv.cc')

diff --git a/src/arch/x86/emulenv.cc b/src/arch/x86/emulenv.cc
index 30ed80942..0d7b32130 100644
--- a/src/arch/x86/emulenv.cc
+++ b/src/arch/x86/emulenv.cc
@@ -105,3 +105,11 @@ void EmulEnv::doModRM(const ExtMachInst & machInst)
     }
 }
 
+void EmulEnv::setSeg(const ExtMachInst & machInst)
+{
+    seg = SEGMENT_REG_DS;
+    //Handle any segment override that might have been in the instruction
+    int segFromInst = machInst.legacy.seg;
+    if (segFromInst)
+        seg = (SegmentRegIndex)(segFromInst - 1);
+}
-- 
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