diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index f6aeb0b..e6388a6 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2001-11-01  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
+
+	* gas/m68hc11/opers12.s: Add test for disassembler bug with movb
+	instruction.
+	* gas/m68hc11/opers12.d: Likewise.
+	* gas/m68hc11/opers12-dwarf2.d: Likewise.
+
 2001-10-09  Nick Clifton  <nickc@cambridge.redhat.com>
 
 	* sh/basic.exp: Add dsp dump test.
diff --git a/gas/testsuite/gas/m68hc11/opers12-dwarf2.d b/gas/testsuite/gas/m68hc11/opers12-dwarf2.d
index a9ecb8a..e8944af 100644
--- a/gas/testsuite/gas/m68hc11/opers12-dwarf2.d
+++ b/gas/testsuite/gas/m68hc11/opers12-dwarf2.d
@@ -214,3 +214,28 @@
  10f:	1b fa 00 ff 	leas	255,PC
 	leas	max9b,pc
  113:	1b fa 00 00 	leas	0,PC
+
+;;
+;; Disassembler bug with movb
+;;
+	movb	#23,0x2345
+ 117:	18 0b 17 23 	movb	#23, 2345 <max9b\+0x2246>
+ 11b:	45 
+	movb	#40,12,sp
+ 11c:	18 08 8c 28 	movb	#40, 12,SP
+	movb	#39,3,\+sp
+ 120:	18 08 a2 27 	movb	#39, 3,\+SP
+	movb	#20,14,sp
+ 124:	18 08 8e 14 	movb	#20, 14,SP
+	movw	#0x3210,0x3456
+ 128:	18 03 32 10 	movw	#3210 <bb\+0xa10>, 3456 <bb\+0xc56>
+ 12c:	34 56 
+	movw	#0x4040,12,sp
+ 12e:	18 00 8c 40 	movw	#4040 <bb\+0x1840>, 12,SP
+ 132:	40 
+	movw	#0x3900,3,\+sp
+ 133:	18 00 a2 39 	movw	#3900 <bb\+0x1100>, 3,\+SP
+ 137:	00 
+	movw	#0x2000,14,sp
+ 138:	18 00 8e 20 	movw	#2000 <max9b\+0x1f01>, 14,SP
+ 13c:	00 
diff --git a/gas/testsuite/gas/m68hc11/opers12.d b/gas/testsuite/gas/m68hc11/opers12.d
index e6cdce0..645a5fe 100644
--- a/gas/testsuite/gas/m68hc11/opers12.d
+++ b/gas/testsuite/gas/m68hc11/opers12.d
@@ -88,3 +88,11 @@
 0+10b <t2\+0x16> leas	0,PC
 0+10f <t2\+0x1a> leas	255,PC
 0+113 <t2\+0x1e> leas	0,PC
+0+117 <t2\+0x22> movb	#23, 0+2345 <max9b\+0x2246>
+0+11c <t2\+0x27> movb	#40, 12,SP
+0+120 <t2\+0x2b> movb	#39, 3,\+SP
+0+124 <t2\+0x2f> movb	#20, 14,SP
+0+128 <t2\+0x33> movw	#0+3210 <bb\+0xa10>, 0+3456 <bb\+0xc56>
+0+12e <t2\+0x39> movw	#0+4040 <bb\+0x1840>, 12,SP
+0+133 <t2\+0x3e> movw	#0+3900 <bb\+0x1100>, 3,\+SP
+0+138 <t2\+0x43> movw	#0+2000 <max9b\+0x1f01>, 14,SP
diff --git a/gas/testsuite/gas/m68hc11/opers12.s b/gas/testsuite/gas/m68hc11/opers12.s
index 94f8912..6157d8d 100644
--- a/gas/testsuite/gas/m68hc11/opers12.s
+++ b/gas/testsuite/gas/m68hc11/opers12.s
@@ -100,6 +100,19 @@
 	leas	min9b,pc
 	leas	max9b,pc
 
+;;
+;; Disassembler bug with movb
+;;
+	movb	#23,0x2345
+	movb	#40,12,sp
+	movb	#39,3,+sp
+	movb	#20,14,sp
+	movw	#0x3210,0x3456
+	movw	#0x4040,12,sp
+	movw	#0x3900,3,+sp
+	movw	#0x2000,14,sp
+#	movb	#111,start
+
 titi = 10
 toto = 100
 min5b= -15