;; #LAYOUT# STD * #TAKE ;; #LAYOUT# * KERNAL_0 #TAKE ;; #LAYOUT# * * #IGNORE ; ; Official Kernal routine, described in: ; ; - [RG64] C64 Programmers Reference Guide - page 300 ; - [CM64] Computes Mapping the Commodore 64 - page 239 ; ; CPU registers that has to be preserved (see [RG64]): .A, .X, .Y ; SETTMO: sta TIMOUT rts