The Zx Spectrum Ula- How To Design A Microcomputer -zx Design Retro Computer- Work Link

: Sits at addresses 0x4000 to 0x7FFF . This is where the video display file (screen memory) lives.

: Random-Access Memory (RAM) to store user programs and the display frame buffer. : Sits at addresses 0x4000 to 0x7FFF

Modern retro-computing enthusiasts and hardware designers have spent decades reverse-engineering the Ferranti ULA to understand its inner workings. Notable engineers like Chris Smith spent years analyzing the chip under microscopes to map its exact schematic down to the individual transistor. : Sits at addresses 0x4000 to 0x7FFF

ZX Spectrum ULA: How to Design a Microcomputer , written by , is considered the definitive technical resource for understanding the custom "heart" of the Sinclair ZX Spectrum . The book documents Smith’s extensive reverse-engineering project, where he stripped the ULA chip down to its transistors to reveal its hidden logic and design secrets. Core Technical Focus : Sits at addresses 0x4000 to 0x7FFF