ref: 6cb359cc00bdc8204b011db46b8746c446f2c4de
parent: a2eafd2cb0d6206ddaa846d50c320a309a17f05e
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Sun Jan 22 15:39:14 EST 2017
sgi: cleanup timer code - no need to splhi() in timerset, always called with interrupts off. - make timerset always update the period (next == 0) - remove period update in fastticks(), simplify delta calculation.