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EPEX: An Environment Extension for CP/M

Epex is an evironment extension for CP/M. It stands for Environmental Processing EXecutive, and v1.1 was released by James H. Whorton in 1986. It can make using CP/M much more comfortable at the cost...   Read More

File Comparison Utilities on CP/M

There are many utilities available for CP/M to compare the differences between files and to distribute those differences. All the utilities in this article can be found on the Walnut Creek CD. Binary ...   Read More

80 Columns in Software on the Commodore VIC-20

If you have good eyesight, a well-tuned display and patience it is possible to use 80 columns in software on the VIC-20. This is really just an experiment but considering the limitations of the Vic I ...   Read More

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...   Read More

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...   Read More

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