rem: acquire_sem_etc(sem_id sem, int count, int j1, bigtime_t j2)
add: acquire_sem_etc(sem_id sem, int32 count, uint32 j1, bigtime_t j2)
context: acquire_sem_etc(sem_id sem, int count, int j1, bigtime_t j2){    int *ptr = (int *)sem;    if (*ptr <= 0) {        myfs_die("You lose sucka! acquire_sem_etc of sem with count == %d\n",                 *ptr);    }    *ptr -= count;    return 0;}