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  • ZX rom type detectionHere is routine for fast detection of zx rom / computer model. [URL="http://velesoft.speccy.cz/other/ZXROMDETECT.zip"]http://velesoft.speccy.cz/othe…

    ... for fast detection of zx rom / computer model.

    [URL ... +2 SPANISH
    255 = UNKNOWN ROM

    Source code:
    rom type from 48basic rom.
    I compare ... . Only original ZX Spectrum 48 rom contain byte #BF at address ...
    velesoft velesoft January 2015 Sinclair Miscellaneous
  • Rom questionHi Can .rom files be viewed? I am curious to what the .rom file looks like. I saw some versions that have been modified and have source code to vie…

    Hi

    Can .rom files be viewed? I am ... curious to what the .rom file looks like.


    So is a rom file just compiled assembly code ...
    username username February 2015 Emulators
  • Add imageI could not get the image feature to work. I ended up manually putting the link in my code. I notice also that you do not have to surround it in [img…

    I could not get the image feature to work. I ended ... a direct link to an image, rather than the ...
    Scottie_uk Scottie_uk May 2015 WoS/Forum Issues
  • ZX81 SP ROM Disassembly<div>Hi All,</div><div><br></div><div>For anyone who is interested in ZX81 Assembler and ASZMIC ROM...</div><div><br></div><div>I have created a disa…

    ... in ZX81 Assembler and ASZMIC ROM...
    I have created ... disassembly of the Comprocsys SP ROM for ZX 81 froman ... conjunction with the Comprocsys ASZMIC ROM or without (via ZX81 BASIC ... commands).
    SP ROM Disassembly Xcode project is available ...
    dbolli dbolli June 2015 Sinclair Miscellaneous
  • Destroyed my ROM. Need a new one...I was messing around with my 48K rubberkey's ROM trying to read its contents with the programmer we have at work but in my haste and excitement I mad…

    ... with my 48K rubberkey's ROM trying to read its contents ... have ended up blowing the ROM up *[i]hangs head in ...
    namtip namtip August 2015 Hardware
  • Interface 1 Rom UpdateHi, I have an Interface 1 with a version 1 Shadow Rom, I would like to update it to Version 2. I think IF1 Rom v2 code could be burned into a T…

    ... with a version 1 Shadow Rom, I would like to update ... .

    I think IF1 Rom v2 code could be burned ... there maybe a version 3 rom, was that ever released.
    doubledecca doubledecca August 2015 Hardware
  • +2 Grey versionsThis thread is an attempt to pin down the various hardware revisions of the +2 Grey. If anybody can provide further images from their machines or fur…

    ... br /> [img]http://cl.ly/image/2R2Q2G1R1x0c/Screenshot%202015-09-03 ... br /> Mid (1987? Week 21): ROM has text rotated on it ... /sinclair/images/plus2_pcb.jpg[/img](image nvg)

    [i] ... components are not fitted, French ROM (40068)[img]http://mo5.com ...
    smogit smogit September 2015 Hardware
  • Searching for correct Betadisk 48k TR-DOS v4.12 ROM (Save ROM via TRDOS-Prompt to Disk)Hi, I have two ROM-Files which should be read out from an original Betadisk 48 Interface TRDOS v4.12 (ROM-Size 8k). But when I compare them, they…

    ... br />
    First ROM has Checksum: SHA-1: C8BAAEF66AB7FBF457BA76B783C02434CC5E2130 ...
    Second ROM has Checksum: SHA-1: ... to
    Vision GUI with ROM-size 16k.

    Luzie Luzie September 2015 Hardware
  • Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …

    ... problem with the pixel address rom routine at 8874.

    Going by the ZXSpectrum Rom Dissassembly book, I'm trying ...
    Tobo Tobo September 2015 Development
  • The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…

    ... /> Custom ROM in ROM-A
    DRAM in ROM-B with ... )

    --------------------------
    ROM and RAM in More Detail ...
    --------------------------
    ROM:

    ROM0 - ... and copy the .TRD image sector by sector to ...
    bverstee bverstee October 2015 Hardware
  • SINCLAIR ZX80 + 16K ORIGINAL EXPANSION ROM!!!http://www.ebay.co.uk/itm/-/171965470419? Here you are my ZX80 in perfect working condition. It was upgraded in 1981 with the new rom and keybo…

    ... in 1981 with the new rom and keyboard.

    It ...
    ranma_simon ranma_simon October 2015 Sales
  • 128K Toast Rack / +2 Grey Bug Fixed english ROM ?Just spotted this on ebay before ending: http://www.ebay.com/itm/1x-Sinclair-ZX-Spectrum-128K-Toast-Rack-2-Grey-Bug-Fixed-english-ROM-/26206065205…

    ... -2-Grey-Bug-Fixed-english-ROM-/262060652057?hash=item3d04083619:g:i ... to place a 128k Toastrack Rom on a grey +2? Any ... , a grey +2 with that ROM would become the most compatible ...
    Renegade Renegade October 2015 Hardware
  • Spectrum+ 128k ROM replacementHello, I want to change the stock ROM of my Spectrum+ 128k with an EPROM ([url="http://pdf.datasheetarchive.com/datasheetsmain/Datasheets-32/DSA-6…

    ... want to change the stock ROM of my Spectrum+ 128k with ...
    kwyjibo kwyjibo November 2015 Hardware
  • 48K Issue 3B ROM to EPROM methodsHi folks, While fixing up a completely dead Commodore PET I needed a way of testing the 4116 RAM chips that make up its 32K, some googling found a…

    ... EPROM containing the 48K ROM and a diagnostic ROM from Paul Farrow ... 've found of doing the ROM - EPROM replacement, either the ... diags.

    Sanity check ROM burner (MQP Pinmaster 48) by ... reburn the 27c256 with stock ROM (previous attempt had been with ...
    witchy witchy December 2015 Hardware
  • WANTED Machinecode Routine for Paging in Betadisk TR-DOS v5 ROMI try to build a small MCode-program which writes the TR-DOS-ROM v4 / v5 to RAM adress 40000 an up. It´s working on TR-DOS v4 / Betadisk 48k: C…

    ... which writes the TR-DOS-ROM v4 / v5 to ... #3C06 = 15366 dez = DOS / ROM ON
    ;TR-DOS v4 ... I compare the Bytes from ROM-Files, it seems with ... copies the standard Spectrum 48k ROM to adress 40000
    ... and NOT the Betadisk v5 ROM (because it´s not paged ...
    Luzie Luzie December 2015 Hardware
  • Image 2 spectrumHi. This is my take on the "converting rgb images to spectrum". (or well, second take, first was a photoshop filter..) [img]https://dl.dropboxu…

    ... apply to the source image, and the modified image is then sent ...
    Sol_HSA Sol_HSA December 2015 Announcements
  • LgK image compressorOk people, i decided to make it proper thread since i've finally got something tested & useful for everyone. Here is my "chunky" ZX image compressor …

    ... . Here is my "chunky" ZX image compressor (codename Lethargeek Kompakt or ...
    Lethargeek Lethargeek January 2016 Development
  • I don't think I'm getting the $22AA Pixel-Add rom routineDear all, I'm misunderstanding how the PIXEL-ADD rom routine works. My code... [code]ld b,175 ld c,1 call $22AA ld (hl),a ret[/code] So…

    ... misunderstanding how the PIXEL-ADD rom routine works.

    My ... that, I'm assuming the rom routine at $22AA will convert ...
    Tobo Tobo March 2016 Development
  • New disc image format: LDBS... Yes, I'm doing exactly the same thing that [url="https://xkcd.com/927/"]XKCD 927[/url] portrays. Don't worry, I have my reasons. LDBS is an at…

    ... attempt to develop a disc image format that's more or ... contents of an LDBS disc image.

    The current development ...
    John Elliott John Elliott March 2016 Emulators
  • 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
  • +2 Gray ProblemI'm trying to repair a +2 gray that behaves differently at every boot up. Some rare times I can get the selection window but pretty soon the characte…

    ... away. I then replaced the rom with a flash eprom containing ... />
    [url=http://postimg.org/image/vpbbi603v/][img]http://s33.postimg ...
    gtsamour gtsamour May 2016 Hardware
  • 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
  • ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…

    ... can only replace the ZX ROM, which has 16KBytes, but the ... .jpg[/img]

    NOTE: Image was composed, to show both ...
    RMartins RMartins May 2016 Hardware
  • Suggestion for ZX Uno improvementsI really enjoy my ZX Uno, however, I do see some improvements that I think could be made to the Uno. 1) When you press CTRL-ALT-Backspace or when …

    ... sure what the 48K Cargo ROM is about, nor Rooted ZX ... /> 15) Having a zipped SD IMAGE with all of the EXSDOS ... similar to the NOOBS SD image for the Raspberry PI.
    andydansby andydansby June 2016 Hardware
  • 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
  • SMART card not workingHi all, I've got an issue 3 48k which appears to be working fine apart from with a Retroleum SMART card. The card (which works fine on my other Sp…

    ... start, I can run test ROM images and they complete fine ... led flickers away, the screen image comes up and then just ...
    Jet5y Jet5y 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
  • Composite video ghost image on ZX Spectrum 128K +2Hi, I have a ghost image on the composite video out on my ZX Spectrum 128K +2 and have run out of ideas of what could be wrong. Does anybody have a…

    ... ,
    I have a ghost image on the composite video out ... could not see the ghost image on the TV but the ...
    pdj102 pdj102 September 2016 Hardware
  • +3e and disk geometry questionsI've bought a ZX-UNO and I want to use a mixt disk (IDEDOS+FAT) on it. That ZX-UNO has +2e DivMMC ROMs version 1.43 (the only version that works with…

    ... real +3e with a DivIDE (ROM version 1.38).

    image of that card, ZXSpin and ...
    Zup Zup September 2016 Hardware
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