delay, microdelay, addclock0link - small delays, clock interrupts void delay(int n)

void microdelay(int n)

void addclock0link(void(*clockf)(void))

Delay busy waits for n milliseconds, forced to be at least one millisecond.

Microdelay is similar, but busy waits for n microseconds.

For delays on the order of clock ticks, tsleep (see sleep (10.2)) provides a better alternative to the busy waiting of these routines.

Addclock0link adds clockf to a list of functions to be executed at each clock interrupt.

sleep (10.2)