Breakout Style Games on CP/M
Breakout style video games were pretty popular at one time both at Arcades and on home computers. The games are based on a simple concept where you have to destroy a group of 'bricks' at the top of t...
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64 Column Text Mode on the Commodore VIC-20
With a little lateral thinking and by putting the television on its side we can create a 64 column sideways text mode on the VIC-20. This article will demonstrate this and show how it is done. Previo...
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Hamurabi and Similar Games on CP/M
Hamurabi is probably the best known land and resource management game on CP/M. However, there are a few other similar text-based games that sought to extend the concept such as Dukedom and Kingdom. T...
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Word Processors on the Commodore VIC-20
Word processing is possible on the VIC-20 and can be surprisingly comfortable despite the small screen text area. Here I will show a variety of word processors each of which handles the 22 column rest...
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Getting the Address of BASIC Variables on the VIC-20
Getting the address of a BASIC variable can be useful if you want to pass data to a machine code routine or want to access the bytes of a variable directly to improve speed and reduce garbage collectio...
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