Archipelago » qemu

void helper_hlt(void)

{

    env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */

    env->hflags |= HF_HALTED_MASK;

    env->exception_index = EXCP_HLT;

    cpu_loop_exit();

}

void helper_monitor(void)

{

    if (ECX != 0)

        raise_exception(EXCP0D_GPF);

    /* XXX: store address ? */

}

void helper_mwait(void)

{

    if (ECX != 0)

        raise_exception(EXCP0D_GPF);

    /* XXX: not complete but not completely erroneous */

    if (env->cpu_index != 0 || env->next_cpu != NULL) {

        /* more than one CPU: do not sleep because another CPU may

           wake this one */

    } else {

        helper_hlt();

    }

}