diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index 60b910dad..32e2baf0c 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,3 +1,8 @@
+2000-10-20  Jakub Jelinek  <jakub@redhat.com>
+
+	* sparc.h (enum sparc_opcode_arch_val): Add SPARC_OPCODE_ARCH_V9B.
+	Note that '3' is used for siam operand.
+
 2000-09-22  Jim Wilson  <wilson@cygnus.com>
 
 	* ia64.h (enum ia64_dependency_semantics): Add IA64_DVS_STOP.
diff --git a/include/opcode/sparc.h b/include/opcode/sparc.h
index 4f159bd89..423cea7b4 100644
--- a/include/opcode/sparc.h
+++ b/include/opcode/sparc.h
@@ -1,5 +1,5 @@
 /* Definitions for opcode table for the sparc.
-   Copyright (C) 1989, 91, 92, 93, 94, 95, 96, 1997
+   Copyright (C) 1989, 91, 92, 93, 94, 95, 96, 97, 2000
    Free Software Foundation, Inc.
 
 This file is part of GAS, the GNU Assembler, GDB, the GNU debugger, and
@@ -46,6 +46,7 @@ enum sparc_opcode_arch_val {
   /* v9 variants must appear last */
   SPARC_OPCODE_ARCH_V9,
   SPARC_OPCODE_ARCH_V9A, /* v9 with ultrasparc additions */
+  SPARC_OPCODE_ARCH_V9B, /* v9 with ultrasparc and cheetah additions */
   SPARC_OPCODE_ARCH_BAD /* error return from sparc_opcode_lookup_arch */
 };
 
@@ -141,6 +142,7 @@ Kinds of operands:
 	h	22 high bits.
 	X	5 bit unsigned immediate
 	Y	6 bit unsigned immediate
+	3	SIAM mode (3 bits). (v9b)
 	K	MEMBAR mask (7 bits). (v9)
 	j	10 bit Immediate. (v9)
 	I	11 bit Immediate. (v9)
@@ -187,7 +189,7 @@ Kinds of operands:
 	/	Ancillary state register in rs1 (v9a)
 
 The following chars are unused: (note: ,[] are used as punctuation)
-[345]
+[45]
 
 */