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  • DiagROM v1.47

    Posted on January 2nd, 2020 Phil

    Updated the Spectrum DiagROM code some more.. Minor improvements and a fix for a bug that crept into the code recently (was returning false multiplexor errors – note to self: don’t rely completely on emulators for testing..)

  • DiagROM V1.40

    Posted on April 28th, 2019 Phil

    I’ve updated my Spectrum Diagnostic ROM slightly: Various improvements both in aesthetics and function, optimizations and some ULA/Z80 analysis.

  • Restoring the white ZX Spectrum case logo

    Posted on March 28th, 2019 Phil

    Crikey, a site update!

    I’ve finally had a few spare minutes to type up an article on restoring the white logo on the ZX Spectrum. Hope others have success with this method!

  • Snapload V3.2

    Posted on November 14th, 2018 Phil

    Added a little feature to the NMI menu of the SMART Card’s snapload ROM: When a .tap file has been loaded, the current position of the (virtual) tape can be stored and restored allowing “rewinding” for multi-load games (the tape now also automatically rewinds at the end). The latest ROMs are – as always – available at

  • LOAD “”

    Posted on November 23rd, 2017 Phil

    I sometimes get questions about difficulties encountered when loading (Spectrum) games from cassette tape, and end up typing the same info over and over.  To save time in future I’ve pasted my thoughts here :)