[Qemu-devel] [PULL 30/33] s390x/tcg: Implement VECTOR STORE ELEMENT

[Cornelia Huck <cohuck@redhat.com>]

From: David Hildenbrand <david@redhat.com>

As we only store one element, there is nothing to consider regarding
exceptions.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-30-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
 target/s390x/insn-data.def      |  5 +++++
 target/s390x/translate_vx.inc.c | 18 ++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 4525d5b1452f..ff5b9e7302d2 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1036,6 +1036,11 @@
     F(0xe75f, VSEG,    VRR_a, V,   0, 0, 0, 0, vseg, 0, IF_VEC)
 /* VECTOR STORE */
     F(0xe70e, VST,     VRX,   V,   la2, 0, 0, 0, vst, 0, IF_VEC)
+/* VECTOR STORE ELEMENT */
+    E(0xe708, VSTEB,   VRX,   V,   la2, 0, 0, 0, vste, 0, ES_8, IF_VEC)
+    E(0xe709, VSTEH,   VRX,   V,   la2, 0, 0, 0, vste, 0, ES_16, IF_VEC)
+    E(0xe70b, VSTEF,   VRX,   V,   la2, 0, 0, 0, vste, 0, ES_32, IF_VEC)
+    E(0xe70a, VSTEG,   VRX,   V,   la2, 0, 0, 0, vste, 0, ES_64, 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 fcddd0cde713..ecc295da5b6f 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -834,3 +834,21 @@ static DisasJumpType op_vst(DisasContext *s, DisasOps *o)
     tcg_temp_free_i64(tmp);
     return DISAS_NEXT;
 }
+
+static DisasJumpType op_vste(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, 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;
+}
-- 
2.17.2