motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 15:23:53 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/riscv: vector widening floating-point multiply

Browse source 
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: <20200701152549.1218-34-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
LIU Zhiwei 2020-07-01 23:25:21 +08:00 • committed by Alistair Francis
parent 0e0057cbe2
commit f7c7b7cd29
4 changed files with 33 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

22
target/riscv/vector_helper.c
View file

@ -3410,3 +3410,25 @@ RVVCALL(OPFVF2, vfrdiv_vf_d, OP_UUU_D, H8, H8, float64_rdiv)
GEN_VEXT_VF(vfrdiv_vf_h, 2, 2, clearh)
GEN_VEXT_VF(vfrdiv_vf_w, 4, 4, clearl)
GEN_VEXT_VF(vfrdiv_vf_d, 8, 8, clearq)
/* Vector Widening Floating-Point Multiply */
static uint32_t vfwmul16(uint16_t a, uint16_t b, float_status *s)
{
return float32_mul(float16_to_float32(a, true, s),
float16_to_float32(b, true, s), s);
}
static uint64_t vfwmul32(uint32_t a, uint32_t b, float_status *s)
{
return float64_mul(float32_to_float64(a, s),
float32_to_float64(b, s), s);
}
RVVCALL(OPFVV2, vfwmul_vv_h, WOP_UUU_H, H4, H2, H2, vfwmul16)
RVVCALL(OPFVV2, vfwmul_vv_w, WOP_UUU_W, H8, H4, H4, vfwmul32)
GEN_VEXT_VV_ENV(vfwmul_vv_h, 2, 4, clearl)
GEN_VEXT_VV_ENV(vfwmul_vv_w, 4, 8, clearq)
RVVCALL(OPFVF2, vfwmul_vf_h, WOP_UUU_H, H4, H2, vfwmul16)
RVVCALL(OPFVF2, vfwmul_vf_w, WOP_UUU_W, H8, H4, vfwmul32)
GEN_VEXT_VF(vfwmul_vf_h, 2, 4, clearl)
GEN_VEXT_VF(vfwmul_vf_w, 4, 8, clearq)