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target/loongarch: Implement vsat

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This patch includes:
- VSAT.{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-18-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-05-04 20:27:43 +08:00
parent 4cc4c0f78b
commit cbe44190cc
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GPG key ID: 40A2FFF239263EDF
5 changed files with 168 additions and 0 deletions
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37
target/loongarch/lsx_helper.c
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@ -590,3 +590,40 @@ VDIV(vmod_bu, 8, UB, DO_REMU)
VDIV(vmod_hu, 16, UH, DO_REMU)
VDIV(vmod_wu, 32, UW, DO_REMU)
VDIV(vmod_du, 64, UD, DO_REMU)
#define VSAT_S(NAME, BIT, E) \
void HELPER(NAME)(void *vd, void *vj, uint64_t max, uint32_t v) \
{ \
int i; \
VReg *Vd = (VReg *)vd; \
VReg *Vj = (VReg *)vj; \
typedef __typeof(Vd->E(0)) TD; \
\
for (i = 0; i < LSX_LEN/BIT; i++) { \
Vd->E(i) = Vj->E(i) > (TD)max ? (TD)max : \
Vj->E(i) < (TD)~max ? (TD)~max: Vj->E(i); \
} \
}
VSAT_S(vsat_b, 8, B)
VSAT_S(vsat_h, 16, H)
VSAT_S(vsat_w, 32, W)
VSAT_S(vsat_d, 64, D)
#define VSAT_U(NAME, BIT, E) \
void HELPER(NAME)(void *vd, void *vj, uint64_t max, uint32_t v) \
{ \
int i; \
VReg *Vd = (VReg *)vd; \
VReg *Vj = (VReg *)vj; \
typedef __typeof(Vd->E(0)) TD; \
\
for (i = 0; i < LSX_LEN/BIT; i++) { \
Vd->E(i) = Vj->E(i) > (TD)max ? (TD)max : Vj->E(i); \
} \
}
VSAT_U(vsat_bu, 8, UB)
VSAT_U(vsat_hu, 16, UH)
VSAT_U(vsat_wu, 32, UW)
VSAT_U(vsat_du, 64, UD)