From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:37473) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ULwZj-0006SO-5L for qemu-devel@nongnu.org; Sat, 30 Mar 2013 10:16:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ULwZh-0002mJ-Bg for qemu-devel@nongnu.org; Sat, 30 Mar 2013 10:16:07 -0400 Received: from mail-ee0-f45.google.com ([74.125.83.45]:56695) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ULwZh-0002mC-5K for qemu-devel@nongnu.org; Sat, 30 Mar 2013 10:16:05 -0400 Received: by mail-ee0-f45.google.com with SMTP id b57so531539eek.4 for ; Sat, 30 Mar 2013 07:16:04 -0700 (PDT) From: edgar.iglesias@gmail.com Date: Sat, 30 Mar 2013 15:12:24 +0100 Message-Id: <1364652744-7001-1-git-send-email-edgar.iglesias@gmail.com> Subject: [Qemu-devel] [PATCH v2] microblaze: Add support for the sleep insn List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org From: "Edgar E. Iglesias" 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; -- 1.7.9.5