mirror of https://github.com/proxmox/mirror_qemu
s390x/tcg: Implement VECTOR SUBTRACT
We can use tcg_gen_sub2_i64() to do 128-bit subtraction and otherwise existing gvec helpers. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com>master
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8112274f86
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@ -1174,6 +1174,8 @@
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F(0xe77c, VSRL, VRR_c, V, 0, 0, 0, 0, vsrl, 0, IF_VEC)
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F(0xe77c, VSRL, VRR_c, V, 0, 0, 0, 0, vsrl, 0, IF_VEC)
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/* VECTOR SHIFT RIGHT LOGICAL BY BYTE */
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/* VECTOR SHIFT RIGHT LOGICAL BY BYTE */
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F(0xe77d, VSRLB, VRR_c, V, 0, 0, 0, 0, vsrl, 0, IF_VEC)
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F(0xe77d, VSRLB, VRR_c, V, 0, 0, 0, 0, vsrl, 0, IF_VEC)
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/* VECTOR SUBTRACT */
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F(0xe7f7, VS, VRR_c, V, 0, 0, 0, 0, vs, 0, IF_VEC)
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#ifndef CONFIG_USER_ONLY
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#ifndef CONFIG_USER_ONLY
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/* COMPARE AND SWAP AND PURGE */
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/* COMPARE AND SWAP AND PURGE */
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@ -2123,3 +2123,20 @@ static DisasJumpType op_vsrl(DisasContext *s, DisasOps *o)
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tcg_temp_free_i64(shift);
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tcg_temp_free_i64(shift);
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return DISAS_NEXT;
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return DISAS_NEXT;
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}
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}
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static DisasJumpType op_vs(DisasContext *s, DisasOps *o)
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{
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const uint8_t es = get_field(s->fields, m4);
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if (es > ES_128) {
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gen_program_exception(s, PGM_SPECIFICATION);
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return DISAS_NORETURN;
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} else if (es == ES_128) {
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gen_gvec128_3_i64(tcg_gen_sub2_i64, get_field(s->fields, v1),
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get_field(s->fields, v2), get_field(s->fields, v3));
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return DISAS_NEXT;
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}
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gen_gvec_fn_3(sub, es, get_field(s->fields, v1), get_field(s->fields, v2),
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get_field(s->fields, v3));
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return DISAS_NEXT;
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}
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