[PATCH] x86 emulator: Add opcodes 0xb9-0xbf (mov r,imm)

Mohammed Gamal
2008-07-31T13:31:11Z

The emulator only supported opcode 0xb8 for mov r,imm. However 0xb9-0xbf
are also mov r,imm. This patch adds support for these instructions.

Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>

---
arch/x86/kvm/x86_emulate.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 005f1db..4c7ca7f 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -156,7 +156,9 @@ static u16 opcode_table[256] = {
ByteOp | ImplicitOps | String, ImplicitOps | String,
/* 0xB0 - 0xBF */
0, 0, 0, 0, 0, 0, 0, 0,
- DstReg | SrcImm | Mov, 0, 0, 0, 0, 0, 0, 0,
+ DstReg | SrcImm | Mov, DstReg | SrcImm | Mov, DstReg | SrcImm | Mov,
+ DstReg | SrcImm | Mov, DstReg | SrcImm | Mov, DstReg | SrcImm | Mov,
+ DstReg | SrcImm | Mov, DstReg | SrcImm | Mov,
/* 0xC0 - 0xC7 */
ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
0, ImplicitOps | Stack, 0, 0,
@@ -1660,7 +1662,7 @@ special_insn:
case 0xae ... 0xaf: /* scas */
DPRINTF("Urk! I don't handle SCAS.\n");
goto cannot_emulate;
- case 0xb8: /* mov r, imm */
+ case 0xb8 ... 0xbf: /* mov r, imm */
goto mov;
case 0xc0 ... 0xc1:
emulate_grp2(ctxt);
--
1.5.4.3