Changeset 65491 in vbox

Timestamp:

Jan 27, 2017 10:33:48 PM (8 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

113121

Message:

IEM: Fixed decoding typo with xmpcxchg8b/16b.

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllInstructions.cpp.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllInstructions.cpp.h

@@ -6860 +6860 @@
                 || (pVCpu->iem.s.fPrefixes & (IEM_OP_PRF_SIZE_OP | IEM_OP_PRF_REPZ))) /** @todo Testcase: AMD seems to express a different idea here wrt prefixes. */
                 return IEMOP_RAISE_INVALID_OPCODE();
-            if (bRm & IEM_OP_PRF_SIZE_REX_W)
+            if (pVCpu->iem.s.fPrefixes & IEM_OP_PRF_SIZE_REX_W)
                 return FNIEMOP_CALL_1(iemOp_Grp9_cmpxchg16b_Mdq, bRm);
             return FNIEMOP_CALL_1(iemOp_Grp9_cmpxchg8b_Mq, bRm);