From 6325245e3ea7fae6609d0e9854c5ee7279140c02 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 25 Feb 2009 10:17:49 -0800
Subject: X86: Implement the longmode versions of the syscall instruction.

---
 src/arch/x86/isa/decoder/two_byte_opcodes.isa | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(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 67845fe8d..887b5bb14 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -254,7 +254,13 @@
                     }
                 }
 #if FULL_SYSTEM
-                0x05: syscall();
+                0x05: decode MODE_MODE {
+                    0x0: decode MODE_SUBMODE {
+                        0x0: Inst::SYSCALL_64();
+                        0x1: Inst::SYSCALL_COMPAT();
+                    }
+                    0x1: Inst::SYSCALL_LEGACY();
+                }
 #else
                 0x05: SyscallInst::syscall('xc->syscall(Rax)', IsSyscall);
 #endif
-- 
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