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[11/15] target-tricore: Add instructions of SBC and SBRN opcode format

Message ID 1404756822-3253-12-git-send-email-kbastian@mail.uni-paderborn.de
State New
Headers show

Commit Message

Bastian Koppelmann July 7, 2014, 6:13 p.m. UTC 
Add instructions of SBC and SBRN opcode format.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
 target-tricore/translate.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

Comments

Richard Henderson July 8, 2014, 4:47 a.m. UTC | #1 
On 07/07/2014 11:13 AM, Bastian Koppelmann wrote:
> +/* SBRN-format jumps */
> +    case OPC1_16_SBRN_JZ_T:
> +        temp = tcg_temp_new();
> +        tcg_gen_andi_tl(temp, cpu_gpr_d[15], 0x1u << constant);
> +        gen_branch_condi(ctx, TCG_COND_NE, temp, 0x1 << constant, offset);
> +        tcg_temp_free(temp);
> +        break;
> +    case OPC1_16_SBRN_JNZ_T:
> +        temp = tcg_temp_new();
> +        tcg_gen_andi_tl(temp, cpu_gpr_d[15], 0x1u << constant);
> +        gen_branch_condi(ctx, TCG_COND_EQ, temp, 0x1 << constant, offset);
> +        tcg_temp_free(temp);
> +        break;

Compare vs zero after the andi.


r~
diff mbox

Patch

diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index f32e1d1..69d99d3 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -284,6 +284,7 @@  static inline void gen_branch_condi(DisasContext *ctx, int cond, TCGv r1,
 static void gen_compute_branch(DisasContext *ctx, uint32_t opc,
                    int r1, int r2 , int32_t constant , int32_t offset)
 {
+    TCGv temp;
 
     switch (opc) {
 /* SB-format jumps */
@@ -302,6 +303,26 @@  static void gen_compute_branch(DisasContext *ctx, uint32_t opc,
     case OPC1_16_SB_JNZ:
         gen_branch_condi(ctx, TCG_COND_NE, cpu_gpr_d[15], 0, offset);
         break;
+/* SBC-format jumps */
+    case OPC1_16_SBC_JEQ:
+        gen_branch_condi(ctx, TCG_COND_NE, cpu_gpr_d[15], constant, offset);
+        break;
+    case OPC1_16_SBC_JNE:
+        gen_branch_condi(ctx, TCG_COND_NE, cpu_gpr_d[15], constant, offset);
+        break;
+/* SBRN-format jumps */
+    case OPC1_16_SBRN_JZ_T:
+        temp = tcg_temp_new();
+        tcg_gen_andi_tl(temp, cpu_gpr_d[15], 0x1u << constant);
+        gen_branch_condi(ctx, TCG_COND_NE, temp, 0x1 << constant, offset);
+        tcg_temp_free(temp);
+        break;
+    case OPC1_16_SBRN_JNZ_T:
+        temp = tcg_temp_new();
+        tcg_gen_andi_tl(temp, cpu_gpr_d[15], 0x1u << constant);
+        gen_branch_condi(ctx, TCG_COND_EQ, temp, 0x1 << constant, offset);
+        tcg_temp_free(temp);
+        break;
     default:
             printf("Branch Error at %x\n", ctx->pc);
     }
@@ -626,7 +647,29 @@  static void decode_16Bit_opc(CPUTRICOREState *env, DisasContext *ctx)
         address = sign_extend(MASK_OP_SB_DISP8(ctx->opcode), 7);
         gen_compute_branch(ctx, op1, 0, 0, 0, address);
         break;
-    }
+/* SBC-format */
+    case OPC1_16_SBC_JEQ:
+        address = MASK_OP_SBC_DISP4(ctx->opcode);
+        const16 = sign_extend(MASK_OP_SBC_CONST4(ctx->opcode), 3);
+        gen_compute_branch(ctx, op1, 0, 0, const16, address);
+        break;
+    case OPC1_16_SBC_JNE:
+        address = MASK_OP_SBC_DISP4(ctx->opcode);
+        const16 = sign_extend(MASK_OP_SBC_CONST4(ctx->opcode), 3);
+        gen_compute_branch(ctx, op1, 0, 0, const16, address);
+        break;
+/* SBRN-format */
+    case OPC1_16_SBRN_JNZ_T:
+        address = MASK_OP_SBRN_DISP4(ctx->opcode);
+        const16 = MASK_OP_SBRN_N(ctx->opcode);
+        gen_compute_branch(ctx, op1, 0, 0, const16, address);
+        break;
+    case OPC1_16_SBRN_JZ_T:
+        address = MASK_OP_SBRN_DISP4(ctx->opcode);
+        const16 = MASK_OP_SBRN_N(ctx->opcode);
+        gen_compute_branch(ctx, op1, 0, 0, const16, address);
+        break;
+   }
 }
 
 static void decode_32Bit_opc(CPUTRICOREState *env, DisasContext *ctx)