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s390x/tcg: Implement VECTOR SCATTER ELEMENT 

Similar to VECTOR GATHER ELEMENT, but the other direction.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-25-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
master
David Hildenbrand 2019-03-07 13:15:31 +01:00 committed by Cornelia Huck
parent 3a338e29df
commit 7007ec27a9
2 changed files with 25 additions and 0 deletions
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3
target/s390x/insn-data.def
View File

@ -1027,6 +1027,9 @@
F(0xe74d, VREP, VRI_c, V, 0, 0, 0, 0, vrep, 0, IF_VEC)
/* VECTOR REPLICATE IMMEDIATE */
F(0xe745, VREPI, VRI_a, V, 0, 0, 0, 0, vrepi, 0, IF_VEC)
/* VECTOR SCATTER ELEMENT */
E(0xe71b, VSCEF, VRV, V, la2, 0, 0, 0, vsce, 0, ES_32, IF_VEC)
E(0xe71a, VSCEG, VRV, V, la2, 0, 0, 0, vsce, 0, ES_64, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

22
target/s390x/translate_vx.inc.c
View File

@ -721,3 +721,25 @@ static DisasJumpType op_vrepi(DisasContext *s, DisasOps *o)
gen_gvec_dupi(es, get_field(s->fields, v1), data);
return DISAS_NEXT;
}
static DisasJumpType op_vsce(DisasContext *s, DisasOps *o)
{
const uint8_t es = s->insn->data;
const uint8_t enr = get_field(s->fields, m3);
TCGv_i64 tmp;
if (!valid_vec_element(enr, es)) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}
tmp = tcg_temp_new_i64();
read_vec_element_i64(tmp, get_field(s->fields, v2), enr, es);
tcg_gen_add_i64(o->addr1, o->addr1, tmp);
gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 0);
read_vec_element_i64(tmp, get_field(s->fields, v1), enr, es);
tcg_gen_qemu_st_i64(tmp, o->addr1, get_mem_index(s), MO_TE | es);
tcg_temp_free_i64(tmp);
return DISAS_NEXT;
}