Z80 Control Board

posted in: Z80 Projects | 0

Through the late 80s and early 90s the Zilog Z80 was my favorite CPU to work with. I loved the architecture, instruction set, capabilities and vast array of support chips available. I started designing commercial Z80 boards around 1992 and the early designs were built on perf-board and wire-wrapped. This article discusses a couple of early boards I made, the design, the development tools I used and even some example code. Read More

QuickBASIC Applications

posted in: PC Applications | 0

A collection of applications I wrote in both QuickBASIC 4.5 and PDS 7.0 that ran on a DOS PC with CGA/EGA/VGA graphics. These applications are very old and do not run on modern 64-bit architecture. You made need to use a special emulator to run them, unless you have an old DOS-based PC. You can click the title of each application to download it as a ZIP archive. Read More

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