diff options
| -rw-r--r-- | target-openrisc/translate.c | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/target-openrisc/translate.c b/target-openrisc/translate.c index 8276ce73a2..91c60ebaae 100644 --- a/target-openrisc/translate.c +++ b/target-openrisc/translate.c @@ -209,42 +209,49 @@ static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0) { target_ulong tmp_pc; - int lab = gen_new_label(); - TCGv sr_f = tcg_temp_new(); /* N26, 26bits imm */ tmp_pc = sign_extend((imm<<2), 26) + dc->pc; - tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); - if (op0 == 0x00) { /* l.j */ + switch (op0) { + case 0x00: /* l.j */ tcg_gen_movi_tl(jmp_pc, tmp_pc); - } else if (op0 == 0x01) { /* l.jal */ + break; + case 0x01: /* l.jal */ tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); tcg_gen_movi_tl(jmp_pc, tmp_pc); - } else if (op0 == 0x03) { /* l.bnf */ - tcg_gen_movi_tl(jmp_pc, dc->pc+8); - tcg_gen_brcondi_i32(TCG_COND_EQ, sr_f, SR_F, lab); - tcg_gen_movi_tl(jmp_pc, tmp_pc); - gen_set_label(lab); - } else if (op0 == 0x04) { /* l.bf */ - tcg_gen_movi_tl(jmp_pc, dc->pc+8); - tcg_gen_brcondi_i32(TCG_COND_NE, sr_f, SR_F, lab); - tcg_gen_movi_tl(jmp_pc, tmp_pc); - gen_set_label(lab); - } else if (op0 == 0x11) { /* l.jr */ + break; + case 0x03: /* l.bnf */ + case 0x04: /* l.bf */ + { + int lab = gen_new_label(); + TCGv sr_f = tcg_temp_new(); + tcg_gen_movi_tl(jmp_pc, dc->pc+8); + tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); + tcg_gen_brcondi_i32(op0 == 0x03 ? TCG_COND_EQ : TCG_COND_NE, + sr_f, SR_F, lab); + tcg_gen_movi_tl(jmp_pc, tmp_pc); + gen_set_label(lab); + tcg_temp_free(sr_f); + } + break; + case 0x11: /* l.jr */ tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); - } else if (op0 == 0x12) { /* l.jalr */ + break; + case 0x12: /* l.jalr */ tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); - } else { + break; + default: gen_illegal_exception(dc); + break; } - tcg_temp_free(sr_f); dc->delayed_branch = 2; dc->tb_flags |= D_FLAG; gen_sync_flags(dc); } + static void dec_calc(DisasContext *dc, uint32_t insn) { uint32_t op0, op1, op2; |