From d4f805ed81b3c10c6a7ceca0db60f1f6b4e7a63b Mon Sep 17 00:00:00 2001
From: Fabrice Desclaux <fabrice.desclaux@cea.fr>
Date: Mon, 9 Feb 2015 15:56:01 +0100
Subject: Arch/X86: fix fsntenv in 64bit

---
 miasm2/arch/x86/sem.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'miasm2/arch/x86/sem.py')

diff --git a/miasm2/arch/x86/sem.py b/miasm2/arch/x86/sem.py
index 22e8c276..fefd484d 100644
--- a/miasm2/arch/x86/sem.py
+++ b/miasm2/arch/x86/sem.py
@@ -2003,6 +2003,9 @@ def fnstenv(ir, instr, a):
                                ])
 
     s = instr.mode
+    # The behaviour in 64bit is identical to 64 bit
+    # This will truncate addresses
+    s = min(32, s)
     ad = ExprMem(a.arg, size=16)
     e.append(ExprAff(ad, float_control))
     ad = ExprMem(a.arg + ExprInt_from(a.arg, s / 8 * 1), size=16)
-- 
cgit 1.4.1