target-s390: Implement SUBTRACT HALFWORD

Signed-off-by: N Richard Henderson <rth@twiddle.net>

target-s390: Implement SUBTRACT HALFWORD
Signed-off-by: N Richard Henderson <rth@twiddle.net>
3f4cb56a · Richard Henderson · d82287de · 3f4cb56a
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target-s390x/insn-data.def target-s390x/insn-data.def +3 -0

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--- 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)