SLEEP
# define SLEEP(id, n) sleep((id), PZERO+1)
# define SLEEP(x,s) 0, interruptible_sleep_on(x##_linux)
# define SLEEP(id, n) sleepx((id), PZERO+1, 0)
# define SLEEP(x,y) 1;
# define SLEEP(id, n) tsleep((id), PPAUSE|PCATCH, n, 0)
# define SLEEP(id, n) { lock_t *_l = get_sleep_lock((caddr_t)id); \
# define SLEEP(id, n) sleep((id), PZERO+1)
SLEEP = 0xE6,