diff --git a/lib/arm-mes/arm.M1 b/lib/arm-mes/arm.M1
index 5a9bcd92..ac50904d 100644
--- a/lib/arm-mes/arm.M1
+++ b/lib/arm-mes/arm.M1
@@ -221,10 +221,12 @@ DEFINE strb___%r4,(%r4) 0040c4e5  # strb    r4, [r4]
 DEFINE strb___%r0,(%fp,+#$i8) 00cbe5 # strb    r0, [fp, +#xx]
 DEFINE strb___%r0,(%fp,-#$i8) 004be5 # strb    r0, [fp, -#xx]
 DEFINE strh___%r0,(%r0) b000c0e1  # strh    r0, [r0]
+DEFINE strh___%r0,(%r1) b000c1e1  # strh    r0, [r1]
 DEFINE strh___%r1,(%r1) b010c1e1  # strh    r1, [r1]
 DEFINE strh___%r2,(%r2) b020c2e1  # strh    r2, [r2]
 DEFINE strh___%r3,(%r3) b030c3e1  # strh    r3, [r3]
 DEFINE strh___%r4,(%r4) b040c4e1  # strh    r4, [r4]
+# Can't encode: DEFINE strh___%r0,(%fp,+#$i8) 
 DEFINE movle__%r0,$i8   00a0d3    # movle  r0, #xx
 DEFINE movlt__%r0,$i8   00a0b3    # movlt  r0, #xx
 DEFINE movge__%r0,$i8   00a0a3    # movge  r0, #xx