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target/riscv: vector single-width scaling shift instructions

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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: <20200701152549.1218-29-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
LIU Zhiwei 2020-07-01 23:25:16 +08:00 • committed by Alistair Francis
parent 0a1eaf0036
commit 04a614062d
4 changed files with 148 additions and 0 deletions
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117
target/riscv/vector_helper.c
View file

@ -2909,3 +2909,120 @@ RVVCALL(OPIVX3_RM, vwsmaccus_vx_w, WOP_SUS_W, H8, H4, vwsmaccus32)
GEN_VEXT_VX_RM(vwsmaccus_vx_b, 1, 2, clearh)
GEN_VEXT_VX_RM(vwsmaccus_vx_h, 2, 4, clearl)
GEN_VEXT_VX_RM(vwsmaccus_vx_w, 4, 8, clearq)
/* Vector Single-Width Scaling Shift Instructions */
static inline uint8_t
vssrl8(CPURISCVState *env, int vxrm, uint8_t a, uint8_t b)
{
uint8_t round, shift = b & 0x7;
uint8_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
static inline uint16_t
vssrl16(CPURISCVState *env, int vxrm, uint16_t a, uint16_t b)
{
uint8_t round, shift = b & 0xf;
uint16_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
static inline uint32_t
vssrl32(CPURISCVState *env, int vxrm, uint32_t a, uint32_t b)
{
uint8_t round, shift = b & 0x1f;
uint32_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
static inline uint64_t
vssrl64(CPURISCVState *env, int vxrm, uint64_t a, uint64_t b)
{
uint8_t round, shift = b & 0x3f;
uint64_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
RVVCALL(OPIVV2_RM, vssrl_vv_b, OP_UUU_B, H1, H1, H1, vssrl8)
RVVCALL(OPIVV2_RM, vssrl_vv_h, OP_UUU_H, H2, H2, H2, vssrl16)
RVVCALL(OPIVV2_RM, vssrl_vv_w, OP_UUU_W, H4, H4, H4, vssrl32)
RVVCALL(OPIVV2_RM, vssrl_vv_d, OP_UUU_D, H8, H8, H8, vssrl64)
GEN_VEXT_VV_RM(vssrl_vv_b, 1, 1, clearb)
GEN_VEXT_VV_RM(vssrl_vv_h, 2, 2, clearh)
GEN_VEXT_VV_RM(vssrl_vv_w, 4, 4, clearl)
GEN_VEXT_VV_RM(vssrl_vv_d, 8, 8, clearq)
RVVCALL(OPIVX2_RM, vssrl_vx_b, OP_UUU_B, H1, H1, vssrl8)
RVVCALL(OPIVX2_RM, vssrl_vx_h, OP_UUU_H, H2, H2, vssrl16)
RVVCALL(OPIVX2_RM, vssrl_vx_w, OP_UUU_W, H4, H4, vssrl32)
RVVCALL(OPIVX2_RM, vssrl_vx_d, OP_UUU_D, H8, H8, vssrl64)
GEN_VEXT_VX_RM(vssrl_vx_b, 1, 1, clearb)
GEN_VEXT_VX_RM(vssrl_vx_h, 2, 2, clearh)
GEN_VEXT_VX_RM(vssrl_vx_w, 4, 4, clearl)
GEN_VEXT_VX_RM(vssrl_vx_d, 8, 8, clearq)
static inline int8_t
vssra8(CPURISCVState *env, int vxrm, int8_t a, int8_t b)
{
uint8_t round, shift = b & 0x7;
int8_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
static inline int16_t
vssra16(CPURISCVState *env, int vxrm, int16_t a, int16_t b)
{
uint8_t round, shift = b & 0xf;
int16_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
static inline int32_t
vssra32(CPURISCVState *env, int vxrm, int32_t a, int32_t b)
{
uint8_t round, shift = b & 0x1f;
int32_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
static inline int64_t
vssra64(CPURISCVState *env, int vxrm, int64_t a, int64_t b)
{
uint8_t round, shift = b & 0x3f;
int64_t res;
round = get_round(vxrm, a, shift);
res = (a >> shift) + round;
return res;
}
RVVCALL(OPIVV2_RM, vssra_vv_b, OP_SSS_B, H1, H1, H1, vssra8)
RVVCALL(OPIVV2_RM, vssra_vv_h, OP_SSS_H, H2, H2, H2, vssra16)
RVVCALL(OPIVV2_RM, vssra_vv_w, OP_SSS_W, H4, H4, H4, vssra32)
RVVCALL(OPIVV2_RM, vssra_vv_d, OP_SSS_D, H8, H8, H8, vssra64)
GEN_VEXT_VV_RM(vssra_vv_b, 1, 1, clearb)
GEN_VEXT_VV_RM(vssra_vv_h, 2, 2, clearh)
GEN_VEXT_VV_RM(vssra_vv_w, 4, 4, clearl)
GEN_VEXT_VV_RM(vssra_vv_d, 8, 8, clearq)
RVVCALL(OPIVX2_RM, vssra_vx_b, OP_SSS_B, H1, H1, vssra8)
RVVCALL(OPIVX2_RM, vssra_vx_h, OP_SSS_H, H2, H2, vssra16)
RVVCALL(OPIVX2_RM, vssra_vx_w, OP_SSS_W, H4, H4, vssra32)
RVVCALL(OPIVX2_RM, vssra_vx_d, OP_SSS_D, H8, H8, vssra64)
GEN_VEXT_VX_RM(vssra_vx_b, 1, 1, clearb)
GEN_VEXT_VX_RM(vssra_vx_h, 2, 2, clearh)
GEN_VEXT_VX_RM(vssra_vx_w, 4, 4, clearl)
GEN_VEXT_VX_RM(vssra_vx_d, 8, 8, clearq)