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| author | David Hildenbrand <david@redhat.com> | 2019-04-10 22:48:25 +0200 |
|---|---|---|
| committer | David Hildenbrand <david@redhat.com> | 2019-05-17 10:54:13 +0200 |
| commit | fe2be36d26b3d3e86246c88bb09a9613b99dc6c9 (patch) | |
| tree | 8843fade2d58ead810be3b206bcec0adefad023f | |
| parent | bc725e65152c57d42f19eec134c99940114d6362 (diff) | |
| download | qemu-fe2be36d26b3d3e86246c88bb09a9613b99dc6c9.zip | |
s390x/tcg: Implement VECTOR SUM ACROSS DOUBLEWORD
Perform the calculations without a helper. Only 16 bit or 32 bit values
have to be added.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/translate_vx.inc.c | 29 |
2 files changed, 31 insertions, 0 deletions
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index a8d90517f6..dd37003082 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1182,6 +1182,8 @@ F(0xe7bf, VSBI, VRR_d, V, 0, 0, 0, 0, vsbi, 0, IF_VEC) /* VECTOR SUBTRACT WITH BORROW COMPUTE BORROW INDICATION */ F(0xe7bd, VSBCBI, VRR_d, V, 0, 0, 0, 0, vsbcbi, 0, IF_VEC) +/* VECTOR SUM ACROSS DOUBLEWORD */ + F(0xe765, VSUMG, VRR_c, V, 0, 0, 0, 0, vsumg, 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 85cd5f03b3..7b4efee5c0 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -2252,3 +2252,32 @@ static DisasJumpType op_vsbcbi(DisasContext *s, DisasOps *o) get_field(s->fields, v4)); return DISAS_NEXT; } + +static DisasJumpType op_vsumg(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s->fields, m4); + TCGv_i64 sum, tmp; + uint8_t dst_idx; + + if (es == ES_8 || es > ES_32) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + sum = tcg_temp_new_i64(); + tmp = tcg_temp_new_i64(); + for (dst_idx = 0; dst_idx < 2; dst_idx++) { + uint8_t idx = dst_idx * NUM_VEC_ELEMENTS(es) / 2; + const uint8_t max_idx = idx + NUM_VEC_ELEMENTS(es) / 2 - 1; + + read_vec_element_i64(sum, get_field(s->fields, v3), max_idx, es); + for (; idx <= max_idx; idx++) { + read_vec_element_i64(tmp, get_field(s->fields, v2), idx, es); + tcg_gen_add_i64(sum, sum, tmp); + } + write_vec_element_i64(sum, get_field(s->fields, v1), dst_idx, ES_64); + } + tcg_temp_free_i64(sum); + tcg_temp_free_i64(tmp); + return DISAS_NEXT; +} |