A unique font that converts hexadecimal characters into disassembled Z80 instructions using OpenType features, with a focus on challenges and solutions for handling out-of-order operands and multiple character combinations.
An email machine, the Cidco MailStation, is repurposed as a terminal using the Z80 processor and msTERM application. The WiFiStation dongle enables network communication.
- Hardware: Z80 processor, 128KB RAM, 0.5MB flash, modem, parallel port, RTC, QWERTY keyboard.
- Code Loading: Built-in hex editor or loader program via parallel port.
- Dev Env: OpenBSD laptop, C/Z80 assembly, SDCC compiler, upload via parallel port.
- msTERM: Stein's terminal program for BBS communication, custom ISR, modified font.
- Get Started: Stein's released msTERM code, example project, WiFi adapter option."
- Hardware: Z80 processor, 128KB RAM, 0.5MB flash, modem, parallel port, RTC, QWERTY keyboard.
- Code Loading: Built-in hex editor or loader program via parallel port.
- Dev Env: OpenBSD laptop, C/Z80 assembly, SDCC compiler, upload via parallel port.
- msTERM: Stein's terminal program for BBS communication, custom ISR, modified font.
- Get Started: Stein's released msTERM code, example project, WiFi adapter option."
A tribute to the Z80 microprocessor, which has been discontinued after 48 years. The article discusses the history of the Z80, from its creation at Intel to its eventual departure from the market.
