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It is possible to increase the resolution on the C64. Turning off the borders allows sprites to be seen in the border area. Unfortunately you can't tell the c
by Lerc 9y ago
It is possible to increase the resolution on the C64. Turning off the borders allows sprites to be seen in the border area.
Unfortunately you can't tell the c64 to turn off the border. You can just tell it to turn on at a time that is not now. Removing the top/bottom border is easy enough and some games did this (usually for showing the score/lives etc.) Side borders were a somewhat trickier to do while you did anything else.
https://en.wikipedia.org/wiki/Commodore_64_demos https://en.wikipedia.org/wiki/Commodore_64_demos shows a screenshot of a border sprite hack.
It would be tough to add another 80 pixels though, which is what you'd need to significantly improve an 80 column text display giving each character another pixel.
- vidarh 9y agoI mentioned the top/bottom borders, but as I pointed out it only gives you at most 192 pixels wide so you don't get full extra lines. The reason I didn't mention the side border is that it would eat up most of the available CPU time, since you'd need to spend most of it on timing the on/off switch. You'd basically be left with almost only the vertical blanking interval to do other processing.