diff options
Diffstat (limited to 'target-tricore/translate.c')
| -rw-r--r-- | target-tricore/translate.c | 90 |
1 files changed, 88 insertions, 2 deletions
diff --git a/target-tricore/translate.c b/target-tricore/translate.c index 428a41e8e8..84dd47db00 100644 --- a/target-tricore/translate.c +++ b/target-tricore/translate.c @@ -567,7 +567,7 @@ static void gen_loop(DisasContext *ctx, int r1, int32_t offset) static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1, int r2 , int32_t constant , int32_t offset) { - TCGv temp; + TCGv temp, temp2; int n; switch (opc) { @@ -721,6 +721,79 @@ static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1, } tcg_temp_free(temp); break; +/* BRR Format */ + case OPCM_32_BRR_EQ_NEQ: + if (MASK_OP_BRR_OP2(ctx->opcode) == OPC2_32_BRR_JEQ) { + gen_branch_cond(ctx, TCG_COND_EQ, cpu_gpr_d[r1], cpu_gpr_d[r2], + offset); + } else { + gen_branch_cond(ctx, TCG_COND_NE, cpu_gpr_d[r1], cpu_gpr_d[r2], + offset); + } + break; + case OPCM_32_BRR_ADDR_EQ_NEQ: + if (MASK_OP_BRR_OP2(ctx->opcode) == OPC2_32_BRR_JEQ_A) { + gen_branch_cond(ctx, TCG_COND_EQ, cpu_gpr_a[r1], cpu_gpr_a[r2], + offset); + } else { + gen_branch_cond(ctx, TCG_COND_NE, cpu_gpr_a[r1], cpu_gpr_a[r2], + offset); + } + break; + case OPCM_32_BRR_GE: + if (MASK_OP_BRR_OP2(ctx->opcode) == OPC2_32_BRR_JGE) { + gen_branch_cond(ctx, TCG_COND_GE, cpu_gpr_d[r1], cpu_gpr_d[r2], + offset); + } else { + gen_branch_cond(ctx, TCG_COND_GEU, cpu_gpr_d[r1], cpu_gpr_d[r2], + offset); + } + break; + case OPCM_32_BRR_JLT: + if (MASK_OP_BRR_OP2(ctx->opcode) == OPC2_32_BRR_JLT) { + gen_branch_cond(ctx, TCG_COND_LT, cpu_gpr_d[r1], cpu_gpr_d[r2], + offset); + } else { + gen_branch_cond(ctx, TCG_COND_LTU, cpu_gpr_d[r1], cpu_gpr_d[r2], + offset); + } + break; + case OPCM_32_BRR_LOOP: + if (MASK_OP_BRR_OP2(ctx->opcode) == OPC2_32_BRR_LOOP) { + gen_loop(ctx, r1, offset * 2); + } else { + /* OPC2_32_BRR_LOOPU */ + gen_goto_tb(ctx, 0, ctx->pc + offset * 2); + } + break; + case OPCM_32_BRR_JNE: + temp = tcg_temp_new(); + temp2 = tcg_temp_new(); + if (MASK_OP_BRC_OP2(ctx->opcode) == OPC2_32_BRR_JNED) { + tcg_gen_mov_tl(temp, cpu_gpr_d[r1]); + /* also save r2, in case of r1 == r2, so r2 is not decremented */ + tcg_gen_mov_tl(temp2, cpu_gpr_d[r2]); + /* subi is unconditional */ + tcg_gen_subi_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 1); + gen_branch_cond(ctx, TCG_COND_NE, temp, temp2, offset); + } else { + tcg_gen_mov_tl(temp, cpu_gpr_d[r1]); + /* also save r2, in case of r1 == r2, so r2 is not decremented */ + tcg_gen_mov_tl(temp2, cpu_gpr_d[r2]); + /* addi is unconditional */ + tcg_gen_addi_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 1); + gen_branch_cond(ctx, TCG_COND_NE, temp, temp2, offset); + } + tcg_temp_free(temp); + tcg_temp_free(temp2); + break; + case OPCM_32_BRR_JNZ: + if (MASK_OP_BRR_OP2(ctx->opcode) == OPC2_32_BRR_JNZ_A) { + gen_branch_condi(ctx, TCG_COND_NE, cpu_gpr_a[r1], 0, offset); + } else { + gen_branch_condi(ctx, TCG_COND_EQ, cpu_gpr_a[r1], 0, offset); + } + break; default: printf("Branch Error at %x\n", ctx->pc); } @@ -2378,7 +2451,7 @@ static void decode_bol_opc(CPUTriCoreState *env, DisasContext *ctx, int32_t op1) static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx) { int op1; - int32_t r1; + int32_t r1, r2; int32_t address; int8_t b, const4; int32_t bpos; @@ -2530,6 +2603,19 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx) r1 = MASK_OP_BRN_S1(ctx->opcode); gen_compute_branch(ctx, op1, r1, 0, 0, address); break; +/* BRR Format */ + case OPCM_32_BRR_EQ_NEQ: + case OPCM_32_BRR_ADDR_EQ_NEQ: + case OPCM_32_BRR_GE: + case OPCM_32_BRR_JLT: + case OPCM_32_BRR_JNE: + case OPCM_32_BRR_JNZ: + case OPCM_32_BRR_LOOP: + address = MASK_OP_BRR_DISP15_SEXT(ctx->opcode); + r2 = MASK_OP_BRR_S2(ctx->opcode); + r1 = MASK_OP_BRR_S1(ctx->opcode); + gen_compute_branch(ctx, op1, r1, r2, 0, address); + break; } } |