Hi Avi, Attached is the patch to implement emulation of instruction: dec reg opcodes: 0x48 - 0x4f Please apply.
-- Thanks & Regards, Nitin Open Source Technology Center, Intel Corporation ----------------------------------------------------------------- The mind is like a parachute; it works much better when it's open
commit ea06cdff59c8f9d74be2f6d7b7c4137a7c150a50 Author: Nitin A Kamble <[EMAIL PROTECTED]> Date: Fri Sep 14 14:55:33 2007 -0700 Implement emulation of instruction: dec reg opcode: 0x48 - 0x4f Signed-off-by: Nitin A Kamble <[EMAIL PROTECTED]> diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index f5a4f4a..64909ff 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -100,7 +100,8 @@ static u8 opcode_table[256] = { ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, /* 0x48 - 0x4F */ - 0, 0, 0, 0, 0, 0, 0, 0, + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, /* 0x50 - 0x57 */ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, @@ -1409,6 +1410,22 @@ pop_instruction: } no_wb = 1; /* Disable writeback. */ break; + case 0x48 ... 0x4f: /* dec r16/r32 */ + dst.ptr = (unsigned long *)&_regs[b & 0x7]; + dst.val = *dst.ptr; + switch (op_bytes) { + case 2: + *(u16 *)dst.ptr = (u16)dst.val - 1; + break; + case 4: + *dst.ptr = (u32)dst.val - 1; + break; /* 64b: zero-ext */ + case 8: + *dst.ptr = dst.val - 1; + break; + } + no_wb = 1; /* Disable writeback. */ + break; case 0xa4 ... 0xa5: /* movs */ dst.type = OP_MEM; dst.bytes = (d & ByteOp) ? 1 : op_bytes;
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