This code appears in the following versions (click to see it in the source code):
Code variations between these versions are shown below.
Name: DOT Type: Subroutine Category: Dashboard
Arguments:
COMX The screen pixel x-coordinate of the dash COMY The screen pixel y-coordinate of the dash
.DOT
This variation is blank in the Cassette, Disc (flight), 6502 Second Processor and Electron versions.
LDA #%00001111 \ Set bits 1 and 2 of the Access Control Register at STA VIA+&34 \ SHEILA &34 to switch screen memory into &3000-&7FFF