target-s390: Convert 64-bit MULTIPLY LOGICAL
Use a new "retxl" member of CPUS290XState to return the "eXtra Low" part
of a 128-bit value. That said, this will get used when two independent
values need returning (e.g. quotient+remainder) as well.
At the same time, shuffle the elements of CPUS390XState to get this new
space from existing padding in the structure.
Signed-off-by: Richard Henderson <rth@twiddle.net>
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index ca12e47..94cd220 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -54,6 +54,8 @@
/* MULTIPLY LOGICAL */
C(0xb996, MLR, RRE, Z, r1p1_32u, r2_32u, new, r1_D32, mul, 0)
C(0xe396, ML, RXY_a, Z, r1p1_32u, m2_32u, new, r1_D32, mul, 0)
+ C(0xb986, MLGR, RRE, Z, r1p1, r2_o, r1_P, 0, mul128, 0)
+ C(0xe386, MLG, RXY_a, Z, r1p1, m2_64, r1_P, 0, mul128, 0)
/* MULTIPLY SINGLE */
C(0xb252, MSR, RRE, Z, r1_o, r2_o, new, r1_32, mul, 0)
C(0x7100, MS, RX_a, Z, r1_o, m2_32s, new, r1_32, mul, 0)
