diff options
| author | LIU Zhiwei <zhiwei_liu@c-sky.com> | 2020-07-01 23:25:41 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2020-07-02 09:19:33 -0700 |
| commit | 78d90cfe859c8f5bd7baa0d41a4b5126e08eac24 (patch) | |
| tree | 6c83353d65c3b7a9bc312e1ede60a73ac2b207ad /target/riscv/vector_helper.c | |
| parent | 81fbf7daf2eccadd6480b90db95a2e8c410d4414 (diff) | |
target/riscv: vector iota instruction
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-54-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/vector_helper.c')
| -rw-r--r-- | target/riscv/vector_helper.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index a58809a3cd..e0e6299e64 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -4644,3 +4644,32 @@ void HELPER(vmsof_m)(void *vd, void *v0, void *vs2, CPURISCVState *env, { vmsetm(vd, v0, vs2, env, desc, ONLY_FIRST); } + +/* Vector Iota Instruction */ +#define GEN_VEXT_VIOTA_M(NAME, ETYPE, H, CLEAR_FN) \ +void HELPER(NAME)(void *vd, void *v0, void *vs2, CPURISCVState *env, \ + uint32_t desc) \ +{ \ + uint32_t mlen = vext_mlen(desc); \ + uint32_t vlmax = env_archcpu(env)->cfg.vlen / mlen; \ + uint32_t vm = vext_vm(desc); \ + uint32_t vl = env->vl; \ + uint32_t sum = 0; \ + int i; \ + \ + for (i = 0; i < vl; i++) { \ + if (!vm && !vext_elem_mask(v0, mlen, i)) { \ + continue; \ + } \ + *((ETYPE *)vd + H(i)) = sum; \ + if (vext_elem_mask(vs2, mlen, i)) { \ + sum++; \ + } \ + } \ + CLEAR_FN(vd, vl, vl * sizeof(ETYPE), vlmax * sizeof(ETYPE)); \ +} + +GEN_VEXT_VIOTA_M(viota_m_b, uint8_t, H1, clearb) +GEN_VEXT_VIOTA_M(viota_m_h, uint16_t, H2, clearh) +GEN_VEXT_VIOTA_M(viota_m_w, uint32_t, H4, clearl) +GEN_VEXT_VIOTA_M(viota_m_d, uint64_t, H8, clearq) |