From 114b643dd0125518c5f0b40959057dcf316f5007 Mon Sep 17 00:00:00 2001
From: Andreas Sandberg <andreas@sandberg.pp.se>
Date: Mon, 30 Sep 2013 12:06:36 +0200
Subject: x86: Add support for FXSAVE, FXSAVE64, FXRSTOR, and FXRSTOR64

---
 src/arch/x86/isa/decoder/two_byte_opcodes.isa | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'src/arch/x86/isa/decoder')

diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index 294509df3..fb3add4ac 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -762,8 +762,16 @@
                         default: Inst::UD2();
                     }
                     default: decode MODRM_REG {
-                        0x0: fxsave();
-                        0x1: fxrstor();
+                        0x0: decode OPSIZE {
+                            4: Inst::FXSAVE(M);
+                            8: Inst::FXSAVE64(M);
+                            default: fxsave();
+                        }
+                        0x1: decode OPSIZE {
+                            4: Inst::FXRSTOR(M);
+                            8: Inst::FXRSTOR64(M);
+                            default: fxrstor();
+                        }
                         0x2: Inst::LDMXCSR(Md);
                         0x3: Inst::STMXCSR(Md);
                         0x4: xsave();
-- 
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