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target/s390x: Emulate CVDG

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CVDG is the same as CVD, except that it converts 64 bits into 128,
rather than 32 into 64. Create a new helper, which uses Int128
wrappers.

Reported-by: Ido Plat <Ido.Plat@ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20240205205830.6425-2-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Ilya Leoshkevich 2024-02-05 21:54:53 +01:00 • committed by Thomas Huth
parent 6a41a62171
commit a6e55a82e9
4 changed files with 31 additions and 0 deletions
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1
target/s390x/tcg/insn-data.h.inc
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@ -296,6 +296,7 @@
/* CONVERT TO DECIMAL */
C(0x4e00, CVD, RX_a, Z, r1_o, a2, 0, 0, cvd, 0)
C(0xe326, CVDY, RXY_a, LD, r1_o, a2, 0, 0, cvd, 0)
C(0xe32e, CVDG, RXY_a, Z, r1_o, a2, 0, 0, cvdg, 0)
/* CONVERT TO FIXED */
F(0xb398, CFEBR, RRF_e, Z, 0, e2, new, r1_32, cfeb, 0, IF_BFP)
F(0xb399, CFDBR, RRF_e, Z, 0, f2, new, r1_32, cfdb, 0, IF_BFP)