system/qemu
system/qemu
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/qemu synced 2024-11-05 20:35:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

s390x/tcg: Implement VECTOR LOAD WITH LENGTH

Browse source 
We can reuse the helper introduced along with VECTOR LOAD TO BLOCK
BOUNDARY. We just have to take care of converting the highest index into
a length.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-18-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2019-03-07 13:15:24 +01:00 committed by Cornelia Huck
parent 76dbd28935
commit f6c7ff6757
3 changed files with 22 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
target/s390x/insn-data.def
View file

@ -1008,6 +1008,8 @@
F(0xe722, VLVG, VRS_b, V, la2, r3, 0, 0, vlvg, 0, IF_VEC)
/* VECTOR LOAD VR FROM GRS DISJOINT */
F(0xe762, VLVGP, VRR_f, V, r2, r3, 0, 0, vlvgp, 0, IF_VEC)
/* VECTOR LOAD WITH LENGTH */
F(0xe737, VLL, VRS_b, V, la2, r3_32u, 0, 0, vll, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

7
target/s390x/translate.c
View file

@ -5794,6 +5794,13 @@ static void in2_r3_sr32(DisasContext *s, DisasFields *f, DisasOps *o)
}
#define SPEC_in2_r3_sr32 0
static void in2_r3_32u(DisasContext *s, DisasFields *f, DisasOps *o)
{
o->in2 = tcg_temp_new_i64();
tcg_gen_ext32u_i64(o->in2, regs[get_field(f, r3)]);
}
#define SPEC_in2_r3_32u 0
static void in2_r2_32s(DisasContext *s, DisasFields *f, DisasOps *o)
{
o->in2 = tcg_temp_new_i64();

13
target/s390x/translate_vx.inc.c
View file

@ -519,3 +519,16 @@ static DisasJumpType op_vlvgp(DisasContext *s, DisasOps *o)
write_vec_element_i64(o->in2, get_field(s->fields, v1), 1, ES_64);
return DISAS_NEXT;
}
static DisasJumpType op_vll(DisasContext *s, DisasOps *o)
{
const int v1_offs = vec_full_reg_offset(get_field(s->fields, v1));
TCGv_ptr a0 = tcg_temp_new_ptr();
/* convert highest index into an actual length */
tcg_gen_addi_i64(o->in2, o->in2, 1);
tcg_gen_addi_ptr(a0, cpu_env, v1_offs);
gen_helper_vll(cpu_env, a0, o->addr1, o->in2);
tcg_temp_free_ptr(a0);
return DISAS_NEXT;
}