TEXTCOLOR = $e0c022 NEWVIDEO = $e0c029 BORDERCOLOR = $e0c034 CLOCKCTL = $e0c034 SHADOW = $e0c035 STACKCTL = $e0c068 KBD = $e0c000 KBDSTROBE = $e0c010 COUT = $fded ; Zero page locations we use (unused by Monitor, Applesoft, or ProDOS) PARAM0 = $06 PARAM1 = $07 PARAM2 = $08 PARAM3 = $09 PARAML0 = $06 ; 16-bit versions of params PARAML1 = $08 SCRATCH0 = $19 SCRATCH1 = $1a SCRATCHL = $19 ; 16-bit version of scratch