Similar to VECTOR SHIFT LEFT ARITHMETIC. Add s390_vec_sar() similar to
s390_vec_shr().
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Signed-off-by: David Hildenbrand <da...@redhat.com>
---
target/s390x/helper.h | 1 +
target/s390x/insn-data.def | 4 ++++
target/s390x/translate_vx.inc.c | 17 +++++++++++++++++
target/s390x/vec_int_helper.c | 26 ++++++++++++++++++++++++++
4 files changed, 48 insertions(+)
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index b4ddc8a722..fda274d325 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -205,6 +205,7 @@ DEF_HELPER_FLAGS_4(gvec_verll16, TCG_CALL_NO_RWG, void,
ptr, cptr, i64, i32)
DEF_HELPER_FLAGS_4(gvec_verim8, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32)
DEF_HELPER_FLAGS_4(gvec_verim16, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32)
DEF_HELPER_FLAGS_4(gvec_vsl, TCG_CALL_NO_RWG, void, ptr, cptr, i64, i32)
+DEF_HELPER_FLAGS_4(gvec_vsra, TCG_CALL_NO_RWG, void, ptr, cptr, i64, i32)
#ifndef CONFIG_USER_ONLY
DEF_HELPER_3(servc, i32, env, i64, i64)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 76aec5a21f..587de3eaac 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1166,6 +1166,10 @@
F(0xe775, VSLB, VRR_c, V, 0, 0, 0, 0, vsl, 0, IF_VEC)
/* VECTOR SHIFT LEFT DOUBLE BY BYTE */
F(0xe777, VSLDB, VRI_d, V, 0, 0, 0, 0, vsldb, 0, IF_VEC)
+/* VECTOR SHIFT RIGHT ARITHMETIC */
+ F(0xe77e, VSRA, VRR_c, V, 0, 0, 0, 0, vsra, 0, IF_VEC)
+/* VECTOR SHIFT RIGHT ARITHMETIC BY BYTE */
+ F(0xe77f, VSRAB, VRR_c, V, 0, 0, 0, 0, vsra, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */
diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c
index fd9c5a46e0..a54682987a 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -2085,3 +2085,20 @@ static DisasJumpType op_vsldb(DisasContext *s, DisasOps
*o)
tcg_temp_free(t2);
return DISAS_NEXT;
}
+
+static DisasJumpType op_vsra(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 shift = tcg_temp_new_i64();
+
+ read_vec_element_i64(shift, get_field(s->fields, v3), 7, ES_8);
+ if (s->fields->op2 == 0x7e) {
+ tcg_gen_andi_i64(shift, shift, 0x7);
+ } else {
+ tcg_gen_andi_i64(shift, shift, 0x78);
+ }
+
+ gen_gvec_2i_ool(get_field(s->fields, v1), get_field(s->fields, v2),
+ shift, 0, gen_helper_gvec_vsra);
+ tcg_temp_free_i64(shift);
+ return DISAS_NEXT;
+}
diff --git a/target/s390x/vec_int_helper.c b/target/s390x/vec_int_helper.c
index 3df069f033..67e9f2b0ed 100644
--- a/target/s390x/vec_int_helper.c
+++ b/target/s390x/vec_int_helper.c
@@ -49,6 +49,26 @@ static void s390_vec_shl(S390Vector *d, const S390Vector *a,
uint64_t count)
}
}
+static void s390_vec_sar(S390Vector *d, const S390Vector *a, uint64_t count)
+{
+ uint64_t tmp;
+
+ if (count == 0) {
+ d->doubleword[0] = a->doubleword[0];
+ d->doubleword[1] = a->doubleword[1];
+ } else if (count == 64) {
+ d->doubleword[1] = a->doubleword[0];
+ d->doubleword[0] = 0;
+ } else if (count < 64) {
+ tmp = a->doubleword[1] >> count;
+ d->doubleword[1] = deposit64(tmp, 64 - count, count, a->doubleword[0]);
+ d->doubleword[0] = (int64_t)a->doubleword[0] >> count;
+ } else {
+ d->doubleword[1] = (int64_t)a->doubleword[0] >> (count - 64);
+ d->doubleword[0] = 0;
+ }
+}
+
static void s390_vec_shr(S390Vector *d, const S390Vector *a, uint64_t count)
{
uint64_t tmp;
@@ -535,3 +555,9 @@ void HELPER(gvec_vsl)(void *v1, const void *v2, uint64_t
count,
{
s390_vec_shl(v1, v2, count);
}
+
+void HELPER(gvec_vsra)(void *v1, const void *v2, uint64_t count,
+ uint32_t desc)
+{
+ s390_vec_sar(v1, v2, count);
+}
--
2.20.1
