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  • Mastering Machine Code on your ZX Spectrum by Toni Baker - Chapter 17 Disassembling the ROMHi All, As promised I have posted the source code for the disassembler from Chapter 17 of Mastering Machine Code on your ZX Spectrum by Toni Baker…

    ... -baker-chapter-17-disassembling-the-rom/"]here[/url].

    Thanks ...
    dbolli dbolli March 2016 Development
  • Where can I find accurate ROM functions map?Basically so I can avoid reinventing the wheel and just CALL rom if there is function there (for example, $203C, print function) that does exactly wh…

    Basically so I can avoid reinventing the wheel and just CALL rom if there is function there (for example, $203C, print function) that does exactly what I want. Would also help keep program size small.
    Darkhog Darkhog April 2016 Development
  • ROM checksum tool.A recent post by Rorthron reminded me about this category and how little activity it's had since it was set up. :-S Reading through the "preservat…

    ... .worldofspectrum.org/forums/discussion/52364/rom-checksum-utility"]in Sinclair Miscellaneous ...
    guesser guesser April 2016 Hardware Preservation
  • Complete Spectrum ROM Disassembly copyrightApologies if the answer to this question lies somewhere in the bowels of this forum, but I couldn't find any information on it. It's impossible to…

    ... of the The Complete Spectrum ROM Disassembly (by Logan and O ... SkoolKit job on the Spectrum ROM and publishing the result. Being ...
    SkoolKid SkoolKid May 2016 Sinclair Miscellaneous
  • ROM disassembly of CAS disk interfaceI finished disassembling of the ROM with operating system of CAS (Cheyenne Advanced Systems) disk interface. This interface is a clone of Beta 48 and…

    I finished disassembling of the ROM with operating system of CAS ( ...
    TK90XFan TK90XFan June 2016 Sinclair Miscellaneous
  • 48k Speccy died, resistors getting too hot to touchHi folks, With 2 days to go till an exhibition my trusty dual-boot 48K issue 3b that I made last year has given up the ghost and I'm not sure I ha…

    ... japes to transfer games to microdrive.

    Symptoms were a ... , the diagnostics portion of the ROM failed at SOMETHING but I ...
    witchy witchy June 2016 Hardware
  • Connecting a Microdrive to modern hardwareHas anyone looked into connecting a Microdrive to an Arduino or Raspberry Pi?

    Has anyone looked into connecting a Microdrive to an Arduino or Raspberry Pi?
    Mr Millside Mr Millside July 2016 Hardware
  • The Complete Spectrum ROM Disassembly - SkoolKittedAs [url="http://worldofspectrum.org/forums/discussion/52745"]indicated previously[/url], I've recently been working on converting Logan and O'Hara's …

    ... and O'Hara's Spectrum ROM disassembly into SkoolKit format.
    rom/"]The Complete Spectrum ROM Disassembly[/url]
    SkoolKid SkoolKid July 2016 Announcements
  • Tir Na Nog - Microdrive save/restore?The docs for tir na nog e.g. [url="http://www.worldofspectrum.org/pub/sinclair/games-info/t/TirNaNog.pdf"]worldofspectrum.org/pub/sinclair/games-info…

    ... /t/TirNaNog.pdf[/url] mention microdrive save/restore.

    I ... got my copy loaded via microdrive using the MinnaMicroZ80 tool which ... /> Anyone got saves working via microdrive?
    mister_wavey mister_wavey August 2016 Games
  • Startup colours of the Spectrum ROMHi Folks, Thought I would have a go at changing the startup colours of the Spectrum ROMs used within BasinC which ships with 48.rom (16384 bytes) …

    ... ships with 48.rom (16384 bytes) and plus2.rom (32768 bytes). Looking ... in the Complete ROM Disassembly I made the following ... br />
    In the plus2.rom file I changed:

    ROM disassembly.

    Many ...
    Paddy Coleman Paddy Coleman October 2016 Development
  • Recommend games that don't need the ROM ?I'm looking for a few games that: * Are freely available as .sna files * Do not need the ROM at all * Have motion on screen after snapshot resta…

    ...
    * Do not need the ROM at all
    * Have motion ...
    Mr X Mr X October 2016 Games
  • ROM PRINT routine issuesHi all, I am using the ROM print routines a lot in my assembly program and I'm experiencing issues. I am changing the system variable DF CC to po…

    ... />
    I am using the ROM print routines a lot in ... character. I'm assuming the ROM print routines are updating other ...
    Kevin_C Kevin_C December 2016 Development
  • What should your speccy have come with ?:) I was thinking about this earlier. What changes should of been made to the Speccy when you purchased yours ? Realistically this topic really…

    ... the video out on the IF1 ? I realise the signal is ... if it used Microdrive commands.

    Talking of IF1: A bit ... a 'station' ID in the IF1 so it was permanently set ...
    spider spider December 2016 Sinclair Miscellaneous
  • can a backup device damage the spectrum ROM?as above. been using a specmate device which seems to have corrupted my speccys ROM.

    as above. been using a specmate device which seems to have corrupted my speccys ROM.
    cypher007 cypher007 January 2017 Hardware
  • how to edit a romhi, i just wanted to know the best way to edit a rom. im going to do it in an emulator first and then run it in a spectrum.

    hi,

    i just wanted to know the best way to edit a rom. im going to do it in an emulator first and then run it in a spectrum.
    digital digital January 2017 Hardware
  • where is border/ink, etc stored in rom?hi, i just wondered where these were stored in rom and how i change these?

    hi, i just wondered where these were stored in rom and how i change these?
    digital digital January 2017 Sinclair Miscellaneous
  • ZX Interface 1 + ZX Microdrive + ZX PrinterAll with early original shipping box: http://www.ebay.co.uk/itm/Sinclair-ZX-Interface-1-in-original-postage-box-/172508324401?hash=item282a4c2231:…

    ... .co.uk/itm/Sinclair-ZX-Microdrive-in-original-postage-box-/172508330228 ...
    ranma_simon ranma_simon January 2017 Sales
  • Wanted - Space Raiders ROM CartridgeI keep an eye on eBay and there's a Space Raiders ROM cartridge up for sale at the moment, but I don't think it's worth £70 for such a tatty box. …

    ... there's a Space Raiders ROM cartridge up for sale at ...
    joefish joefish March 2017 Wanted
  • Disable IF1 with switchOk probably silly question time but if you don't ask you'll never know, I have the JS128 which is great and has a jumper on the board to disable the …

    ... connector with things like the IF1 with it, but if i ... then have to unplug my IF1,Ram Turbo and Ramprint, so ... add a switch to the IF1 to disable it and the ...
    thesender thesender March 2017 Hardware
  • Disabling the ROM without removing the whole thingHi! I've got my hands on a non-working issue 6a. I suspect the ROM may be bad, but other things may be faulty as well. I've read that in an otherwis…

    ... issue 6a. I suspect the ROM may be bad, but other ... otherwise working speccy removing the ROM gives a very specific screen ... problem to the ROM.

    But the ROM (a NEC type ...
    Mikelone Mikelone April 2017 Hardware
  • SINCLAIR ZX MICRODRIVE: NEW, unused!!!http://www.ebay.co.uk/itm/SINCLAIR-ZX-MICRODRIVE-NEW-unused-/172623503401 Perfect box, complete with plastic protection inside the internal metal …

    http://www.ebay.co.uk/itm/SINCLAIR-ZX-MICRODRIVE-NEW-unused-/172623503401

    Perfect box, complete with plastic protection inside the internal metal plate cover.

    Have a nice bid ;)
    ranma_simon ranma_simon April 2017 Sales
  • Sinclair QL Preservation: how to dump a MicrodriveHi Guys. Just want to let you know that I'm making some videos on my YouTube channel that explain how the Sinclair Microdrive process works. If…

    ... that explain how the Sinclair Microdrive process works.

    If ...
    ranma_simon ranma_simon May 2017 MIA/STP/SDP
  • Horace and the Spiders and Planetoids ROM cartsOffloading another 2 rare ROM carts, in pretty good nick. £60 for both seem fair? [img]https://s15.postimg.org/y9mibpyrf/2017-05-02-1095.jpg[/i…

    Offloading another 2 rare ROM carts, in pretty good nick.

    £60 for both seem fair?

    [img]https://s15.postimg.org/y9mibpyrf/2017-05-02-1095.jpg[/img]

    [img]https://s2.postimg.org/eloo6fdqh/hats.jpg[/img]
    daveysludge daveysludge May 2017 Sales
  • 128 toastrack ROM "upgrade"Hello all As I hate the UK-model menu & editor I would like to replace the original with the (translated) Spanish ROM but can't find any plain image…

    ... original with the (translated) Spanish ROM but can't find any ... me in EightyOne only as ROM-cartridge (as it should), not ... as ROM replacement.

    Any hint ...
    Mad Fritz Mad Fritz June 2017 Hardware
  • ZX ROM in 64 characters a lineDear ZXS users, I am glad the today's release is not only concerning MB-02+ as it is normally the case with me, but it concerns really everyone, sinc…

    ... everyone, since everyone uses ZX ROM :).

    Busy agreed and ... created superb ROM patches which make ROM print in 64 ...
    Hood Hood June 2017 Sinclair Basic
  • ROM emulation in softwareHi, first of all -- I only have shallow / uni knowledge of hardware, electronics, and physics. So forgive me for asking things that are out of that …

    ... 20ns. But the ZX Spectrum ROM chip timing shows that its ... to somehow wire ZX Spectrum ROM slot to some fast PC ... feed read the ZX Spectrum ROM address and feed it data ...
    tstih tstih June 2017 Hardware
  • +2 Black Boot Rom Selectionhello, i have a custom ROM with a test RAM software burned in that i have used before to troubleshooting ram problems on my +2 grey, is there a…

    ... />
    i have a custom ROM with a test RAM software ... that +2 black has 2 rom ICs, is there any technique ...
    xaris_sm xaris_sm June 2017 Hardware
  • Afterburner rom showing sound options in 48K mode?I am running an [i]Afterburner (1988) (Activision)[/i] rom (which I can't remember where I got it from) that shows the music or sound effects choice …

    ... [i]Afterburner (1988) (Activision)[/i] rom (which I can't remember ...
    Renegade Renegade July 2017 Games
  • Burning a ROM for a 128k +2 (Grey)Hi Guys, I would like to change the 128k +2 menus I have actually in French with English. The OS is in a 27C256 eprom. I do have a programmer and …

    ... where to get the correct rom file to load and how ...
    repetto74 repetto74 September 2017 Hardware
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

HitBox

Word Docs Hits
if1 1K 1.6K
microdrive 2.6K 4.1K
rom 15.6K 29.7K

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  • What causes microdrive capacity reduction ... when the microdrive is a vDrive-ZX?I've just had my Spectrum 48K and Interface 1 refurbished and have bought a vDrive-ZX.<br /> <br /> I'm finding that I cannot copy my Microdrives t…

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