: A utility that converts a plain text file containing BASIC code into a .tap file that can be loaded into an emulator or real hardware [9].
| Border Color | Meaning | |--------------|---------| | | CPU test passed, beginning RAM test | | Red | Fatal error: CPU or ROM addressing fault | | Green | DRAM test in progress | | Cyan | Lower 16K RAM (bank 0) passed | | Yellow | Upper 32K RAM (banks 1-3) testing | | Magenta | RAM refresh failure (timing) | | Black | All tests passed – but with rapid flashing? Wait, no – steady black indicates halted CPU. | zx spectrum test program link
If you are looking for a "test program" to verify if a physical machine is working correctly, several community-standard diagnostic ROMs and tools are available: Phil Ruston's Diagnostic ROM : A utility that converts a plain text
: Community tools like Phil Ruston’s Retroleum Diagnostic ROM provide advanced RAM and component testing for both original and 128K models. How to Use the Test Program To run these diagnostics on original hardware or emulators: New ZX Spectrum Next PLUS ! & A tape that doesn't exist ?! | If you are looking for a "test