From: Fredrik Noring <noring@nocrew.org>

The three-operand MADD and MADDU are specific to R5900 cores.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
---
 target/mips/translate.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/target/mips/translate.c b/target/mips/translate.c
index 3ad3b31..7bf0ee8 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -5039,7 +5039,7 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc,
  *
  * and
  *
- *     MADD[U]    rd, rs, rt
+ *     MADD[U][1] rd, rs, rt
  *
  * such that
  *
@@ -5101,6 +5101,9 @@ static void gen_mul_txx9(DisasContext *ctx, uint32_t opc,
             tcg_temp_free_i32(t3);
         }
         break;
+    case MMI_OPC_MADD1:
+        acc = 1;
+        /* Fall through */
     case MMI_OPC_MADD:
         {
             TCGv_i64 t2 = tcg_temp_new_i64();
@@ -5120,6 +5123,9 @@ static void gen_mul_txx9(DisasContext *ctx, uint32_t opc,
             tcg_temp_free_i64(t2);
         }
         break;
+    case MMI_OPC_MADDU1:
+        acc = 1;
+        /* Fall through */
     case MMI_OPC_MADDU:
         {
             TCGv_i64 t2 = tcg_temp_new_i64();
@@ -26753,6 +26759,8 @@ static void decode_mmi(CPUMIPSState *env, DisasContext *ctx)
     case MMI_OPC_MULTU1:
     case MMI_OPC_MADD:
     case MMI_OPC_MADDU:
+    case MMI_OPC_MADD1:
+    case MMI_OPC_MADDU1:
         gen_mul_txx9(ctx, opc, rd, rs, rt);
         break;
     case MMI_OPC_DIV1:
@@ -26768,8 +26776,6 @@ static void decode_mmi(CPUMIPSState *env, DisasContext *ctx)
         gen_HILO1_tx79(ctx, opc, rd);
         break;
     case MMI_OPC_PLZCW:         /* TODO: MMI_OPC_PLZCW */
-    case MMI_OPC_MADD1:         /* TODO: MMI_OPC_MADD1 */
-    case MMI_OPC_MADDU1:        /* TODO: MMI_OPC_MADDU1 */
     case MMI_OPC_PMFHL:         /* TODO: MMI_OPC_PMFHL */
     case MMI_OPC_PMTHL:         /* TODO: MMI_OPC_PMTHL */
     case MMI_OPC_PSLLH:         /* TODO: MMI_OPC_PSLLH */
-- 
2.7.4