QL Screen Scrolling
Posted: Fri Apr 22, 2022 2:23 pm
Hi,
After scanning the QDOS Companion, I was reminded of the QDOS Traps (system calls) to PAN and SCROLL the 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?
After scanning the QDOS Companion, I was reminded of the QDOS Traps (system calls) to PAN and SCROLL the 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?