[PATCH 34/38] target/riscv: RV64 Only 32-bit Multiply & Add Instructions

[LIU Zhiwei]

Signed-off-by: LIU Zhiwei <zhiwei_...@c-sky.com>
---
 target/riscv/helper.h                   |  4 ++++
 target/riscv/insn32-64.decode           |  4 ++++
 target/riscv/insn_trans/trans_rvp.c.inc |  5 ++++
 target/riscv/packed_helper.c            | 31 +++++++++++++++++++++++++
 4 files changed, 44 insertions(+)

diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 198b010601..05f7c1d811 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -1453,4 +1453,8 @@ DEF_HELPER_4(kdmatt16, tl, env, tl, tl, tl)
 
 DEF_HELPER_3(smbt32, tl, env, tl, tl)
 DEF_HELPER_3(smtt32, tl, env, tl, tl)
+
+DEF_HELPER_4(kmabb32, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmabt32, tl, env, tl, tl, tl)
+DEF_HELPER_4(kmatt32, tl, env, tl, tl, tl)
 #endif
diff --git a/target/riscv/insn32-64.decode b/target/riscv/insn32-64.decode
index 46a4e5d080..c5b07a2667 100644
--- a/target/riscv/insn32-64.decode
+++ b/target/riscv/insn32-64.decode
@@ -148,3 +148,7 @@ kdmatt16   1111100  ..... ..... 001 ..... 1111111 @r
 
 smbt32     0001100  ..... ..... 010 ..... 1111111 @r
 smtt32     0010100  ..... ..... 010 ..... 1111111 @r
+
+kmabb32    0101101  ..... ..... 010 ..... 1111111 @r
+kmabt32    0110101  ..... ..... 010 ..... 1111111 @r
+kmatt32    0111101  ..... ..... 010 ..... 1111111 @r
diff --git a/target/riscv/insn_trans/trans_rvp.c.inc 
b/target/riscv/insn_trans/trans_rvp.c.inc
index 33435c3a9e..da6a4ba14a 100644
--- a/target/riscv/insn_trans/trans_rvp.c.inc
+++ b/target/riscv/insn_trans/trans_rvp.c.inc
@@ -1194,4 +1194,9 @@ GEN_RVP_R_ACC_OOL(kdmatt16);
 /* (RV64 Only) 32-bit Multiply Instructions */
 GEN_RVP_R_OOL(smbt32);
 GEN_RVP_R_OOL(smtt32);
+
+/* (RV64 Only) 32-bit Multiply & Add Instructions */
+GEN_RVP_R_ACC_OOL(kmabb32);
+GEN_RVP_R_ACC_OOL(kmabt32);
+GEN_RVP_R_ACC_OOL(kmatt32);
 #endif
diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c
index 11b41637a1..99da28a4b3 100644
--- a/target/riscv/packed_helper.c
+++ b/target/riscv/packed_helper.c
@@ -3592,4 +3592,35 @@ static inline void do_smtt32(CPURISCVState *env, void 
*vd, void *va,
 }
 
 RVPR(smtt32, 1, sizeof(target_ulong));
+
+/* (RV64 Only) 32-bit Multiply & Add Instructions */
+static inline void do_kmabb32(CPURISCVState *env, void *vd, void *va,
+                              void *vb, void *vc, uint8_t i)
+{
+    int64_t *d = vd, *c = vc;
+    int32_t *a = va, *b = vb;
+    *d = sadd64(env, 0, (int64_t)a[H4(2 * i)] * b[H4(2 * i)], *c);
+}
+
+RVPR_ACC(kmabb32, 1, sizeof(target_ulong));
+
+static inline void do_kmabt32(CPURISCVState *env, void *vd, void *va,
+                              void *vb, void *vc, uint8_t i)
+{
+    int64_t *d = vd, *c = vc;
+    int32_t *a = va, *b = vb;
+    *d = sadd64(env, 0, (int64_t)a[H4(2 * i)] * b[H4(2 * i + 1)], *c);
+}
+
+RVPR_ACC(kmabt32, 1, sizeof(target_ulong));
+
+static inline void do_kmatt32(CPURISCVState *env, void *vd, void *va,
+                              void *vb, void *vc, uint8_t i)
+{
+    int64_t *d = vd, *c = vc;
+    int32_t *a = va, *b = vb;
+    *d = sadd64(env, 0, (int64_t)a[H4(2 * i + 1)] * b[H4(2 * i + 1)], *c);
+}
+
+RVPR_ACC(kmatt32, 1, sizeof(target_ulong));
 #endif
-- 
2.17.1