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s390x/tcg: Implement VECTOR LOAD ELEMENT

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Fairly easy, load with desired size and store it into the right element.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-10-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2019-03-07 13:15:16 +01:00 committed by Cornelia Huck
parent 79c1620aea
commit 4b66439463
2 changed files with 23 additions and 0 deletions
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5
target/s390x/insn-data.def
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@ -986,6 +986,11 @@
F(0xe756, VLR, VRR_a, V, 0, 0, 0, 0, vlr, 0, IF_VEC)
/* VECTOR LOAD AND REPLICATE */
F(0xe705, VLREP, VRX, V, la2, 0, 0, 0, vlrep, 0, IF_VEC)
/* VECTOR LOAD ELEMENT */
E(0xe700, VLEB, VRX, V, la2, 0, 0, 0, vle, 0, ES_8, IF_VEC)
E(0xe701, VLEH, VRX, V, la2, 0, 0, 0, vle, 0, ES_16, IF_VEC)
E(0xe703, VLEF, VRX, V, la2, 0, 0, 0, vle, 0, ES_32, IF_VEC)
E(0xe702, VLEG, VRX, V, la2, 0, 0, 0, vle, 0, ES_64, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

18
target/s390x/translate_vx.inc.c
View File

@ -262,3 +262,21 @@ static DisasJumpType op_vlrep(DisasContext *s, DisasOps *o)
tcg_temp_free_i64(tmp);
return DISAS_NEXT;
}
static DisasJumpType op_vle(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();
tcg_gen_qemu_ld_i64(tmp, o->addr1, get_mem_index(s), MO_TE | es);
write_vec_element_i64(tmp, get_field(s->fields, v1), enr, es);
tcg_temp_free_i64(tmp);
return DISAS_NEXT;
}