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s390x/tcg: Implement VECTOR ADD WITH CARRY COMPUTE CARRY

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Similar to VECTOR ADD COMPUTE CARRY, however 128-bit handling only.
Courtesy of Richard H.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2019-04-10 23:25:46 +02:00
parent 8d4eb4b6c2
commit 8a931bb8dd
2 changed files with 34 additions and 0 deletions
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2
target/s390x/insn-data.def
View File

@ -1062,6 +1062,8 @@
F(0xe7f1, VACC, VRR_c, V, 0, 0, 0, 0, vacc, 0, IF_VEC)
/* VECTOR ADD WITH CARRY */
F(0xe7bb, VAC, VRR_d, V, 0, 0, 0, 0, vac, 0, IF_VEC)
/* VECTOR ADD WITH CARRY COMPUTE CARRY */
F(0xe7b9, VACCC, VRR_d, V, 0, 0, 0, 0, vaccc, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

32
target/s390x/translate_vx.inc.c
View File

@ -1146,3 +1146,35 @@ static DisasJumpType op_vac(DisasContext *s, DisasOps *o)
get_field(s->fields, v4));
return DISAS_NEXT;
}
static void gen_accc2_i64(TCGv_i64 dl, TCGv_i64 dh, TCGv_i64 al, TCGv_i64 ah,
TCGv_i64 bl, TCGv_i64 bh, TCGv_i64 cl, TCGv_i64 ch)
{
TCGv_i64 tl = tcg_temp_new_i64();
TCGv_i64 th = tcg_temp_new_i64();
TCGv_i64 zero = tcg_const_i64(0);
tcg_gen_andi_i64(tl, cl, 1);
tcg_gen_add2_i64(tl, th, tl, zero, al, zero);
tcg_gen_add2_i64(tl, th, tl, th, bl, zero);
tcg_gen_add2_i64(tl, th, th, zero, ah, zero);
tcg_gen_add2_i64(tl, dl, tl, th, bh, zero);
tcg_gen_mov_i64(dh, zero);
tcg_temp_free_i64(tl);
tcg_temp_free_i64(th);
tcg_temp_free_i64(zero);
}
static DisasJumpType op_vaccc(DisasContext *s, DisasOps *o)
{
if (get_field(s->fields, m5) != ES_128) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}
gen_gvec128_4_i64(gen_accc2_i64, get_field(s->fields, v1),
get_field(s->fields, v2), get_field(s->fields, v3),
get_field(s->fields, v4));
return DISAS_NEXT;
}