From 5d45de9796539f95eb6b1201588362981f8cb2d4 Mon Sep 17 00:00:00 2001 From: "Edgar E. Iglesias" Date: Thu, 28 Mar 2013 22:59:03 +0100 Subject: microblaze: Add support for the sleep insn Signed-off-by: Edgar E. Iglesias --- target-microblaze/translate.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c index a74da8e..06d2346 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; -- cgit v1.1