Ula How To Design A Microcomputer Zx Design Retro Computer Portable — The Zx Spectrum
Designing a modern "Speccy" clone or a unique 8-bit machine involves translating these 40-year-old logic circuits into modern components. 1. Logic Implementation You can recreate the ULA's functions using several methods:
In the early 1980s, Richard Altwasser and the Sinclair team faced a challenge: build a color computer for under £100. Their solution was the Ferranti ULA, a "gate array" precursor to modern FPGAs. The ULA performed four critical roles: Designing a modern "Speccy" clone or a unique
It scanned the rubber membrane keyboard and managed audio input/output for cassette tapes. Designing a modern "Speccy" clone or a unique
It divided a 14 MHz master clock down to 3.5 MHz for the Z80 CPU. How to Design Your Own Retro Microcomputer Designing a modern "Speccy" clone or a unique
It handled pixel and attribute (color) data from memory to generate a PAL video signal.