Zx Spectrum - Test Program Link

ZX Spectrum Test Program

The , specifically the version published by Sinclair Research Ltd in 1985, is a legacy utility designed for internal diagnostics and Input/Output (I/O) handling on the 48K ZX Spectrum. Overview & Utility

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If you are looking for a more modern, open-source approach, Brendan Alford’s diagnostics are highly recommended. These are often used in conjunction with the or other external interface cartridges. zx spectrum test program link

2. The ULA Gate: RAM Contention and Screen Output

5. FUSE Emulator Built-in Test ROM (For reference)

The Difference Between ROM Testers and Tape/File Testers

1. Load the test program via an emulator (e.g., Fuse, ZX Spin) or real hardware using a DivMMC, tape adapter, or programmer.
2. Run with RANDOMIZE USR or autoload.
3. Follow on-screen instructions.

Do you have a favorite test program not listed here? Share your own ZX Spectrum test program link discoveries in the comments below! ZX Spectrum Test Program The , specifically the