QL Screen Scrolling

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QL Screen Scrolling

Postby Derek_Stewart » Fri Apr 22, 2022 2:23 pm


After scanning tge QDOS Companion, I was reminded of the QDOS Traps (system calls) to PAN and SCROLL tge screen or screen channel, which has S*BASIC keywords.

This feature is not present in most computers, so the programmer has to write a horizontal scrolling rountine.

I find this strange as the QL was not suposed to be a gaming computer, but there are assembler and basic rountines available to potentially programme platform games.

Does anyone use the these features?



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