HelenOS sources

tick_counter_read   55 kernel/arch/sparc64/src/drivers/tick.c 	compare.tick_cmpr = tick_counter_read() +
tick_counter_read  116 kernel/arch/sparc64/src/drivers/tick.c 	drift = tick_counter_read() - CPU->arch.next_tick_cmpr;
tick_counter_read  121 kernel/arch/sparc64/src/drivers/tick.c 	CPU->arch.next_tick_cmpr = tick_counter_read() +
HelenOS homepage, sources at GitHub