{"syscall", 0, 0x0f05, X, CpuK6, NoSuf, { 0, 0, 0} },
{"sysret", 0, 0x0f07, X, CpuK6, lq_Suf|DefaultSize, { 0, 0, 0} },
{"swapgs", 0, 0x0f01, 0xf8, Cpu64, NoSuf|ImmExt, { 0, 0, 0} },
+{"rdtscp", 0, 0x0f01, 0xf9, CpuSledgehammer,NoSuf|ImmExt, { 0, 0, 0} },
/* VIA PadLock extensions. */
{"xstorerng", 0, 0x000fa7c0, X, Cpu686|CpuPadLock, NoSuf|IsString, { 0, 0, 0} },