target-tricore: Added new MOV instruction variant

Puts the content of data register D[a] into E[c][63:32] and the
content of data register D[b] into E[c][31:0].

[BK: fix style error]
[BK: Allocate temporaries only when needed]
Signed-off-by: NPeer Adelt <peer.adelt@c-lab.de>
Message-Id: <1465314555-11501-4-git-send-email-peer.adelt@c-lab.de>
Signed-off-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>

target/tricore/translate.c

@@ -6034,6 +6034,8 @@ static void decode_rr_accumulator(CPUTriCoreState *env, DisasContext *ctx)
     uint32_t op2;
     int r3, r2, r1;
 
+    TCGv temp;
+
     r3 = MASK_OP_RR_D(ctx->opcode);
     r2 = MASK_OP_RR_S2(ctx->opcode);
     r1 = MASK_OP_RR_S1(ctx->opcode);
@@ -6224,6 +6226,20 @@ static void decode_rr_accumulator(CPUTriCoreState *env, DisasContext *ctx)
     case OPC2_32_RR_MOV:
         tcg_gen_mov_tl(cpu_gpr_d[r3], cpu_gpr_d[r2]);
         break;
+    case OPC2_32_RR_MOV_64:
+        if (tricore_feature(env, TRICORE_FEATURE_16)) {
+            temp = tcg_temp_new();
+
+            CHECK_REG_PAIR(r3);
+            tcg_gen_mov_tl(temp, cpu_gpr_d[r1]);
+            tcg_gen_mov_tl(cpu_gpr_d[r3], cpu_gpr_d[r2]);
+            tcg_gen_mov_tl(cpu_gpr_d[r3 + 1], temp);
+
+            tcg_temp_free(temp);
+        } else {
+            generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);
+        }
+        break;
     case OPC2_32_RR_NE:
         tcg_gen_setcond_tl(TCG_COND_NE, cpu_gpr_d[r3], cpu_gpr_d[r1],
                            cpu_gpr_d[r2]);

target/tricore/tricore-opcodes.h

@@ -1062,6 +1062,7 @@ enum {
     OPC2_32_RR_MIN_H                             = 0x78,
     OPC2_32_RR_MIN_HU                            = 0x79,
     OPC2_32_RR_MOV                               = 0x1f,
+    OPC2_32_RR_MOV_64                            = 0x81,
     OPC2_32_RR_NE                                = 0x11,
     OPC2_32_RR_OR_EQ                             = 0x27,
     OPC2_32_RR_OR_GE                             = 0x2b,