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-rw-r--r--target/s390x/insn-data.def2
-rw-r--r--target/s390x/translate_vx.inc.c40
2 files changed, 42 insertions, 0 deletions
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 2b36205c84..fa0f3a9003 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1000,6 +1000,8 @@
F(0xe721, VLGV, VRS_c, V, la2, 0, r1, 0, vlgv, 0, IF_VEC)
/* VECTOR LOAD LOGICAL ELEMENT AND ZERO */
F(0xe704, VLLEZ, VRX, V, la2, 0, 0, 0, vllez, 0, IF_VEC)
+/* VECTOR LOAD MULTIPLE */
+ F(0xe736, VLM, VRS_a, V, la2, 0, 0, 0, vlm, 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 cdad2a52f0..083f5c6213 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -406,3 +406,43 @@ static DisasJumpType op_vllez(DisasContext *s, DisasOps *o)
tcg_temp_free_i64(t);
return DISAS_NEXT;
}
+
+static DisasJumpType op_vlm(DisasContext *s, DisasOps *o)
+{
+ const uint8_t v3 = get_field(s->fields, v3);
+ uint8_t v1 = get_field(s->fields, v1);
+ TCGv_i64 t0, t1;
+
+ if (v3 < v1 || (v3 - v1 + 1) > 16) {
+ gen_program_exception(s, PGM_SPECIFICATION);
+ return DISAS_NORETURN;
+ }
+
+ /*
+ * Check for possible access exceptions by trying to load the last
+ * element. The first element will be checked first next.
+ */
+ t0 = tcg_temp_new_i64();
+ t1 = tcg_temp_new_i64();
+ gen_addi_and_wrap_i64(s, t0, o->addr1, (v3 - v1) * 16 + 8);
+ tcg_gen_qemu_ld_i64(t0, t0, get_mem_index(s), MO_TEQ);
+
+ for (;; v1++) {
+ tcg_gen_qemu_ld_i64(t1, o->addr1, get_mem_index(s), MO_TEQ);
+ write_vec_element_i64(t1, v1, 0, ES_64);
+ if (v1 == v3) {
+ break;
+ }
+ gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8);
+ tcg_gen_qemu_ld_i64(t1, o->addr1, get_mem_index(s), MO_TEQ);
+ write_vec_element_i64(t1, v1, 1, ES_64);
+ gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8);
+ }
+
+ /* Store the last element, loaded first */
+ write_vec_element_i64(t0, v1, 1, ES_64);
+
+ tcg_temp_free_i64(t0);
+ tcg_temp_free_i64(t1);
+ return DISAS_NEXT;
+}