diff options
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/translate.c | 1 | ||||
| -rw-r--r-- | target/s390x/translate_vx.inc.c | 39 |
3 files changed, 42 insertions, 0 deletions
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 7d128ac..d3f66c8 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -977,6 +977,8 @@ /* VECTOR GATHER ELEMENT */ E(0xe713, VGEF, VRV, V, la2, 0, 0, 0, vge, 0, ES_32, IF_VEC) E(0xe712, VGEG, VRV, V, la2, 0, 0, 0, vge, 0, ES_64, IF_VEC) +/* VECTOR GENERATE BYTE MASK */ + F(0xe744, VGBM, VRI_a, V, 0, 0, 0, 0, vgbm, 0, IF_VEC) #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/translate.c b/target/s390x/translate.c index a1c6698..588fc21 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -34,6 +34,7 @@ #include "disas/disas.h" #include "exec/exec-all.h" #include "tcg-op.h" +#include "tcg-op-gvec.h" #include "qemu/log.h" #include "qemu/host-utils.h" #include "exec/cpu_ldst.h" diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c index 9864ec5..395c0eb 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -112,6 +112,9 @@ static void write_vec_element_i64(TCGv_i64 src, int reg, uint8_t enr, } } +#define gen_gvec_dup64i(v1, c) \ + tcg_gen_gvec_dup64i(vec_full_reg_offset(v1), 16, 16, c) + static DisasJumpType op_vge(DisasContext *s, DisasOps *o) { const uint8_t es = s->insn->data; @@ -133,3 +136,39 @@ static DisasJumpType op_vge(DisasContext *s, DisasOps *o) tcg_temp_free_i64(tmp); return DISAS_NEXT; } + +static uint64_t generate_byte_mask(uint8_t mask) +{ + uint64_t r = 0; + int i; + + for (i = 0; i < 8; i++) { + if ((mask >> i) & 1) { + r |= 0xffull << (i * 8); + } + } + return r; +} + +static DisasJumpType op_vgbm(DisasContext *s, DisasOps *o) +{ + const uint16_t i2 = get_field(s->fields, i2); + + if (i2 == (i2 & 0xff) * 0x0101) { + /* + * Masks for both 64 bit elements of the vector are the same. + * Trust tcg to produce a good constant loading. + */ + gen_gvec_dup64i(get_field(s->fields, v1), + generate_byte_mask(i2 & 0xff)); + } else { + TCGv_i64 t = tcg_temp_new_i64(); + + tcg_gen_movi_i64(t, generate_byte_mask(i2 >> 8)); + write_vec_element_i64(t, get_field(s->fields, v1), 0, ES_64); + tcg_gen_movi_i64(t, generate_byte_mask(i2)); + write_vec_element_i64(t, get_field(s->fields, v1), 1, ES_64); + tcg_temp_free_i64(t); + } + return DISAS_NEXT; +} |