diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index fb5d25259..2d90e175b 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,3 +1,7 @@
+2005-04-01  Jan Beulich  <jbeulich@novell.com>
+
+	* i386.h (i386_optab): Add rdtscp.
+
 2005-03-29  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* i386.h (i386_optab): Don't allow the `l' suffix for moving
diff --git a/include/opcode/i386.h b/include/opcode/i386.h
index 4de2771e2..ca80d0ab8 100644
--- a/include/opcode/i386.h
+++ b/include/opcode/i386.h
@@ -1375,6 +1375,7 @@ static const template i386_optab[] =
 {"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} },