diff options
Diffstat (limited to 'target-microblaze')
| -rw-r--r-- | target-microblaze/translate.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c index a74da8e1a5..06d23460f9 100644 --- a/target-microblaze/translate.c +++ b/target-microblaze/translate.c @@ -1317,6 +1317,23 @@ static void dec_br(DisasContext *dc) /* Memory barrier. */ mbar = (dc->ir >> 16) & 31; if (mbar == 2 && dc->imm == 4) { + /* mbar IMM & 16 decodes to sleep. */ + if (dc->rd & 16) { + TCGv_i32 tmp_hlt = tcg_const_i32(EXCP_HLT); + TCGv_i32 tmp_1 = tcg_const_i32(1); + + LOG_DIS("sleep\n"); + + t_sync_flags(dc); + tcg_gen_st_i32(tmp_1, cpu_env, + -offsetof(MicroBlazeCPU, env) + +offsetof(CPUState, halted)); + tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc + 4); + gen_helper_raise_exception(cpu_env, tmp_hlt); + tcg_temp_free_i32(tmp_hlt); + tcg_temp_free_i32(tmp_1); + return; + } LOG_DIS("mbar %d\n", dc->rd); /* Break the TB. */ dc->cpustate_changed = 1; |