diff options
| author | LIU Zhiwei <zhiwei_liu@c-sky.com> | 2020-07-01 23:25:24 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2020-07-02 09:19:33 -0700 |
| commit | d9e4ce72a5a0f7c404156d40d3252d4d6a9d6a36 (patch) | |
| tree | 373931f600dcd33409e128a6bda967d47cb83074 /target/riscv/vector_helper.c | |
| parent | 0dd509594fbd53fc9c3edc79bd7a575f079c3c87 (diff) | |
target/riscv: vector floating-point square-root instruction
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-37-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 | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 607fcc8742..40ea67d116 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -3774,3 +3774,46 @@ RVVCALL(OPFVF3, vfwnmsac_vf_h, WOP_UUU_H, H4, H2, fwnmsac16) RVVCALL(OPFVF3, vfwnmsac_vf_w, WOP_UUU_W, H8, H4, fwnmsac32) GEN_VEXT_VF(vfwnmsac_vf_h, 2, 4, clearl) GEN_VEXT_VF(vfwnmsac_vf_w, 4, 8, clearq) + +/* Vector Floating-Point Square-Root Instruction */ +/* (TD, T2, TX2) */ +#define OP_UU_H uint16_t, uint16_t, uint16_t +#define OP_UU_W uint32_t, uint32_t, uint32_t +#define OP_UU_D uint64_t, uint64_t, uint64_t + +#define OPFVV1(NAME, TD, T2, TX2, HD, HS2, OP) \ +static void do_##NAME(void *vd, void *vs2, int i, \ + CPURISCVState *env) \ +{ \ + TX2 s2 = *((T2 *)vs2 + HS2(i)); \ + *((TD *)vd + HD(i)) = OP(s2, &env->fp_status); \ +} + +#define GEN_VEXT_V_ENV(NAME, ESZ, DSZ, CLEAR_FN) \ +void HELPER(NAME)(void *vd, void *v0, void *vs2, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + uint32_t vlmax = vext_maxsz(desc) / ESZ; \ + uint32_t mlen = vext_mlen(desc); \ + uint32_t vm = vext_vm(desc); \ + uint32_t vl = env->vl; \ + uint32_t i; \ + \ + if (vl == 0) { \ + return; \ + } \ + for (i = 0; i < vl; i++) { \ + if (!vm && !vext_elem_mask(v0, mlen, i)) { \ + continue; \ + } \ + do_##NAME(vd, vs2, i, env); \ + } \ + CLEAR_FN(vd, vl, vl * DSZ, vlmax * DSZ); \ +} + +RVVCALL(OPFVV1, vfsqrt_v_h, OP_UU_H, H2, H2, float16_sqrt) +RVVCALL(OPFVV1, vfsqrt_v_w, OP_UU_W, H4, H4, float32_sqrt) +RVVCALL(OPFVV1, vfsqrt_v_d, OP_UU_D, H8, H8, float64_sqrt) +GEN_VEXT_V_ENV(vfsqrt_v_h, 2, 2, clearh) +GEN_VEXT_V_ENV(vfsqrt_v_w, 4, 4, clearl) +GEN_VEXT_V_ENV(vfsqrt_v_d, 8, 8, clearq) |