Commit 5d45de97 authored by Edgar E. Iglesias's avatar Edgar E. Iglesias Committed by Edgar E. Iglesias
Browse files

microblaze: Add support for the sleep insn 



Signed-off-by: default avatarEdgar E. Iglesias <edgar.iglesias@xilinx.com>
parent 174d4d21

target-microblaze/translate.c

+17 −0
Original line number Diff line number Diff line
@@ -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;