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  • DiagROM v1.50

    Posted on May 4th, 2020 Phil


    I’ve updated my Spectrum Diagnostic ROM a little. New stuff:

    • Added contention test to the Spectrum 128 menu
    • Added more ROM signatures for the Spectrum 128 test
    • Aesthetic improvements – better use of colour etc
    • Various odds and ends under the bonnet.

    The latest version is available (for free, naturally) here.


  • 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 www.retroleum.co.uk/smart.zip