Skip to Main Content

< www.rider.edu

Rider University Library

Zx Spectrum Test Program File

Finding books (fiction, non-fiction, poetry, plays), movies, news, magazines, literary journals and more for LGBTQIA+ (lesbian, gay, bisexual, transgender, queer/questioning, intersex, asexual/ally and more!) interests and research

Here’s a retro-computing style post for a forum, social media, or blog, depending on where you want to share it. Building a Simple Test Program for the ZX Spectrum – Check RAM, ROM, and Keyboard in under 1KB

#ZXSpectrum #RetroComputing #Z80 #Diagnostics #Homebrew

Just finished a little weekend project – a bare-bones ZX Spectrum diagnostic/test program written in Z80 assembly. Thought I’d share it for anyone restoring old rubber-keyed Speccys or building a clone (like a Harlequin or ZX-UNO).

Last Updated: Feb 17, 2026 7:35 PM
URL: https://guides.rider.edu/lgbtqia
Print Page

Zx Spectrum Test Program File

Here’s a retro-computing style post for a forum, social media, or blog, depending on where you want to share it. Building a Simple Test Program for the ZX Spectrum – Check RAM, ROM, and Keyboard in under 1KB

#ZXSpectrum #RetroComputing #Z80 #Diagnostics #Homebrew zx spectrum test program

Just finished a little weekend project – a bare-bones ZX Spectrum diagnostic/test program written in Z80 assembly. Thought I’d share it for anyone restoring old rubber-keyed Speccys or building a clone (like a Harlequin or ZX-UNO). Here’s a retro-computing style post for a forum,

© 2026 True Chronicle