Commit 7007ec27 authored by David Hildenbrand's avatar David Hildenbrand Committed by Cornelia Huck
Browse files

s390x/tcg: Implement VECTOR SCATTER ELEMENT 



Similar to VECTOR GATHER ELEMENT, but the other direction.

Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-25-david@redhat.com>
Signed-off-by: default avatarCornelia Huck <cohuck@redhat.com>
parent 3a338e29

target/s390x/insn-data.def

+3 −0
Original line number Diff line number Diff line
@@ -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 */

target/s390x/translate_vx.inc.c

+22 −0
Original line number Diff line number Diff line
@@ -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;

}