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[PATCH v3 16/37] target/riscv: Signed MSW 32x16 Multiply and Add Instruc
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From: |
LIU Zhiwei |
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Subject: |
[PATCH v3 16/37] target/riscv: Signed MSW 32x16 Multiply and Add Instructions |
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Date: |
Thu, 24 Jun 2021 18:55:00 +0800 |
Always contain a 32x16 multiplification and the most significant
word can be used as the result, or an operand for an add or
subtract operation with rounding or saturation.
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/helper.h | 17 ++
target/riscv/insn32.decode | 17 ++
target/riscv/insn_trans/trans_rvp.c.inc | 18 ++
target/riscv/packed_helper.c | 208 ++++++++++++++++++++++++
4 files changed, 260 insertions(+)
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 600e8dee44..854f48d385 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -1280,3 +1280,20 @@ DEF_HELPER_4(kmmsb, tl, env, tl, tl, tl)
DEF_HELPER_4(kmmsb_u, tl, env, tl, tl, tl)
DEF_HELPER_3(kwmmul, tl, env, tl, tl)
DEF_HELPER_3(kwmmul_u, tl, env, tl, tl)
+
+DEF_HELPER_3(smmwb, tl, env, tl, tl)
+DEF_HELPER_3(smmwb_u, tl, env, tl, tl)
+DEF_HELPER_3(smmwt, tl, env, tl, tl)
+DEF_HELPER_3(smmwt_u, tl, env, tl, tl)
+DEF_HELPER_4(kmmawb, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawb_u, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt_u, tl, env, tl, tl, tl)
+DEF_HELPER_3(kmmwb2, tl, env, tl, tl)
+DEF_HELPER_3(kmmwb2_u, tl, env, tl, tl)
+DEF_HELPER_3(kmmwt2, tl, env, tl, tl)
+DEF_HELPER_3(kmmwt2_u, tl, env, tl, tl)
+DEF_HELPER_4(kmmawb2, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawb2_u, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt2, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmmawt2_u, tl, env, tl, tl, tl)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 0484de140b..e5a8f663dc 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -883,3 +883,20 @@ kmmsb 0100001 ..... ..... 001 ..... 1110111 @r
kmmsb_u 0101001 ..... ..... 001 ..... 1110111 @r
kwmmul 0110001 ..... ..... 001 ..... 1110111 @r
kwmmul_u 0111001 ..... ..... 001 ..... 1110111 @r
+
+smmwb 0100010 ..... ..... 001 ..... 1110111 @r
+smmwb_u 0101010 ..... ..... 001 ..... 1110111 @r
+smmwt 0110010 ..... ..... 001 ..... 1110111 @r
+smmwt_u 0111010 ..... ..... 001 ..... 1110111 @r
+kmmawb 0100011 ..... ..... 001 ..... 1110111 @r
+kmmawb_u 0101011 ..... ..... 001 ..... 1110111 @r
+kmmawt 0110011 ..... ..... 001 ..... 1110111 @r
+kmmawt_u 0111011 ..... ..... 001 ..... 1110111 @r
+kmmwb2 1000111 ..... ..... 001 ..... 1110111 @r
+kmmwb2_u 1001111 ..... ..... 001 ..... 1110111 @r
+kmmwt2 1010111 ..... ..... 001 ..... 1110111 @r
+kmmwt2_u 1011111 ..... ..... 001 ..... 1110111 @r
+kmmawb2 1100111 ..... ..... 001 ..... 1110111 @r
+kmmawb2_u 1101111 ..... ..... 001 ..... 1110111 @r
+kmmawt2 1110111 ..... ..... 001 ..... 1110111 @r
+kmmawt2_u 1111111 ..... ..... 001 ..... 1110111 @r
diff --git a/target/riscv/insn_trans/trans_rvp.c.inc
b/target/riscv/insn_trans/trans_rvp.c.inc
index 073558b950..af490a5ef0 100644
--- a/target/riscv/insn_trans/trans_rvp.c.inc
+++ b/target/riscv/insn_trans/trans_rvp.c.inc
@@ -413,3 +413,21 @@ GEN_RVP_R_ACC_OOL(kmmsb);
GEN_RVP_R_ACC_OOL(kmmsb_u);
GEN_RVP_R_OOL(kwmmul);
GEN_RVP_R_OOL(kwmmul_u);
+
+/* Most Significant Word “32x16” Multiply & Add Instructions */
+GEN_RVP_R_OOL(smmwb);
+GEN_RVP_R_OOL(smmwb_u);
+GEN_RVP_R_OOL(smmwt);
+GEN_RVP_R_OOL(smmwt_u);
+GEN_RVP_R_ACC_OOL(kmmawb);
+GEN_RVP_R_ACC_OOL(kmmawb_u);
+GEN_RVP_R_ACC_OOL(kmmawt);
+GEN_RVP_R_ACC_OOL(kmmawt_u);
+GEN_RVP_R_OOL(kmmwb2);
+GEN_RVP_R_OOL(kmmwb2_u);
+GEN_RVP_R_OOL(kmmwt2);
+GEN_RVP_R_OOL(kmmwt2_u);
+GEN_RVP_R_ACC_OOL(kmmawb2);
+GEN_RVP_R_ACC_OOL(kmmawb2_u);
+GEN_RVP_R_ACC_OOL(kmmawt2);
+GEN_RVP_R_ACC_OOL(kmmawt2_u);
diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c
index 465cb5a3b3..868a1a71ba 100644
--- a/target/riscv/packed_helper.c
+++ b/target/riscv/packed_helper.c
@@ -1468,3 +1468,211 @@ static inline void do_kwmmul_u(CPURISCVState *env, void
*vd, void *va,
}
RVPR(kwmmul_u, 1, 4);
+
+/* Most Significant Word “32x16” Multiply & Add Instructions */
+static inline void do_smmwb(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i)] >> 16;
+}
+
+RVPR(smmwb, 1, 4);
+
+static inline void do_smmwb_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i)] + (1ull << 15)) >> 16;
+}
+
+RVPR(smmwb_u, 1, 4);
+
+static inline void do_smmwt(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 16;
+}
+
+RVPR(smmwt, 1, 4);
+
+static inline void do_smmwt_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] + (1ull << 15)) >> 16;
+}
+
+RVPR(smmwt_u, 1, 4);
+
+static inline void do_kmmawb(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, (int64_t)a[H4(i)] * b[H2(2 * i)] >> 16,
c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb, 1, 4);
+
+static inline void do_kmmawb_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, ((int64_t)a[H4(i)] * b[H2(2 * i)] +
+ (1ull << 15)) >> 16, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb_u, 1, 4);
+
+static inline void do_kmmawt(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 16,
+ c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt, 1, 4);
+
+static inline void do_kmmawt_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc;
+ int16_t *b = vb;
+ d[H4(i)] = sadd32(env, 0, ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] +
+ (1ull << 15)) >> 16, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt_u, 1, 4);
+
+static inline void do_kmmwb2(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i)] >> 15;
+ }
+}
+
+RVPR(kmmwb2, 1, 4);
+
+static inline void do_kmmwb2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i)] + (1ull << 14)) >> 15;
+ }
+}
+
+RVPR(kmmwb2_u, 1, 4);
+
+static inline void do_kmmwt2(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 15;
+ }
+}
+
+RVPR(kmmwt2, 1, 4);
+
+static inline void do_kmmwt2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, uint8_t i)
+{
+ int32_t *d = vd, *a = va;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ d[H4(i)] = INT32_MAX;
+ } else {
+ d[H4(i)] = ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] + (1ull << 14)) >> 15;
+ }
+}
+
+RVPR(kmmwt2_u, 1, 4);
+
+static inline void do_kmmawb2(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = (int64_t)a[H4(i)] * b[H2(2 * i)] >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb2, 1, 4);
+
+static inline void do_kmmawb2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = ((int64_t)a[H4(i)] * b[H2(2 * i)] + (1ull << 14)) >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawb2_u, 1, 4);
+
+static inline void do_kmmawt2(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = (int64_t)a[H4(i)] * b[H2(2 * i + 1)] >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt2, 1, 4);
+
+static inline void do_kmmawt2_u(CPURISCVState *env, void *vd, void *va,
+ void *vb, void *vc, uint8_t i)
+{
+ int32_t *d = vd, *a = va, *c = vc, result;
+ int16_t *b = vb;
+ if (a[H4(i)] == INT32_MIN && b[H2(2 * i + 1)] == INT16_MIN) {
+ env->vxsat = 0x1;
+ result = INT32_MAX;
+ } else {
+ result = ((int64_t)a[H4(i)] * b[H2(2 * i + 1)] + (1ull << 14)) >> 15;
+ }
+ d[H4(i)] = sadd32(env, 0, result, c[H4(i)]);
+}
+
+RVPR_ACC(kmmawt2_u, 1, 4);
--
2.17.1
- [PATCH v3 06/37] target/riscv: SIMD 8-bit Shift Instructions, (continued)
- [PATCH v3 06/37] target/riscv: SIMD 8-bit Shift Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 07/37] target/riscv: SIMD 16-bit Compare Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 08/37] target/riscv: SIMD 8-bit Compare Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 09/37] target/riscv: SIMD 16-bit Multiply Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 10/37] target/riscv: SIMD 8-bit Multiply Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 11/37] target/riscv: SIMD 16-bit Miscellaneous Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 12/37] target/riscv: SIMD 8-bit Miscellaneous Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 13/37] target/riscv: 8-bit Unpacking Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 14/37] target/riscv: 16-bit Packing Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 15/37] target/riscv: Signed MSW 32x32 Multiply and Add Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 16/37] target/riscv: Signed MSW 32x16 Multiply and Add Instructions,
LIU Zhiwei <=
- [PATCH v3 17/37] target/riscv: Signed 16-bit Multiply 32-bit Add/Subtract Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 18/37] target/riscv: Signed 16-bit Multiply 64-bit Add/Subtract Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 19/37] target/riscv: Partial-SIMD Miscellaneous Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 20/37] target/riscv: 8-bit Multiply with 32-bit Add Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 21/37] target/riscv: 64-bit Add/Subtract Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 22/37] target/riscv: 32-bit Multiply 64-bit Add/Subtract Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 23/37] target/riscv: Signed 16-bit Multiply with 64-bit Add/Subtract Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 24/37] target/riscv: Non-SIMD Q15 saturation ALU Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 25/37] target/riscv: Non-SIMD Q31 saturation ALU Instructions, LIU Zhiwei, 2021/06/24
- [PATCH v3 26/37] target/riscv: 32-bit Computation Instructions, LIU Zhiwei, 2021/06/24