Archipelago » qemu

/* Return the virtual CPU time, based on the instruction counter.  */

int64_t cpu_get_icount(void)

{

    int64_t icount;

    CPUState *env = cpu_single_env;;

    icount = qemu_icount;

    if (env) {

        if (!can_do_io(env)) {

            fprintf(stderr, "Bad clock read\n");

        }

        icount -= (env->icount_decr.u16.low + env->icount_extra);

    }

    return qemu_icount_bias + (icount << icount_time_shift);

}