target-s390: Implement SUBTRACT HALFWORD
Signed-off-by: Richard Henderson <rth@twiddle.net>
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index 2acc8f0..44e1ca7 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -46,6 +46,9 @@
C(0xb9e9, SGRK, RRF_a, DO, r2, r3, r1, 0, sub, subs64)
C(0xe309, SG, RXY_a, Z, r1, m2_64, r1, 0, sub, subs64)
C(0xe319, SGF, RXY_a, Z, r1, m2_32s, r1, 0, sub, subs64)
+/* SUBTRACT HALFWORD */
+ C(0x4b00, SH, RX_a, Z, r1, m2_16s, new, r1_32, sub, subs32)
+ C(0xe37b, SHY, RXY_a, LD, r1, m2_16s, new, r1_32, sub, subs32)
/* SUBTRACT LOGICAL */
C(0x1f00, SLR, RR_a, Z, r1, r2, new, r1_32, sub, subu32)
C(0xb9fb, SLRK, RRF_a, DO, r2, r3, new, r1_32, sub, subu32)