diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index 33d0e3381..392bf7ef3 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,3 +1,7 @@
+2001-11-29  Alexandre Oliva  <aoliva@redhat.com>
+
+	* d10v.h (OPERAND_SP): New macro.
+
 2001-11-15  Alan Modra  <amodra@bigpond.net.au>
 
 	* ppc.h (struct powerpc_operand <insert, extract>): Add dialect param.
diff --git a/include/opcode/d10v.h b/include/opcode/d10v.h
index 2298b5e8c..52be36056 100644
--- a/include/opcode/d10v.h
+++ b/include/opcode/d10v.h
@@ -181,6 +181,9 @@ extern const struct d10v_operand d10v_operands[];
 /* needed for rac/rachi */
 #define RESTRICTED_NUM3	(0x80000)
 
+/* Pre-decrement is only supported for SP.  */
+#define OPERAND_SP      (0x100000)
+
 /* Structure to hold information about predefined registers.  */
 struct pd_reg
 {