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<1234567…34>
  • Is the IY register used by the spectrum rom?Hi I've been writing a sprite routine and have noticed that the sprite data gets corrupted at some points. I have no idea why and can only guess tha…

    ... routine and have noticed that the sprite data gets corrupted at ... service routine in the spectrum rom is causing the problem. Does the IY register ...
    dmsmith dmsmith November 2004 Development
  • Developing the Spectrum ROMI'm working on some Z80 assembler for a Z80-based single board computer that I'm building. For the things that don't poke my hardware, I'm using a Sp…

    ... handy when finding out what the latest stupidity I've managed ... also using sjasm-plus as the assembler - much nicer than ... latest abortion - when the code for the Spectrum ROM was being developed, presumably ... kind of thing? Even if the ROM is only 16K, that's ...
    Winston Winston December 2006 Development
  • Current status of the ZX80 rom?Forgive me for not remembering and not searching the forums exhaustively. If my assumption is correct, the current open82 project was initially base…

    ... was initially based on the ZX81 rom because such rom isn't subjected ... roms. I believe that the new rom can have as much ZX81 ... said about the ZX80 rom? A gentleman that recently joined the ZX81 forum ... total. Can such board include the ZX80 rom? Or would it be ...
    zxbruno zxbruno March 2010 Sinclair Miscellaneous
  • Which games perform checksums on the 48K ROM?I've just modified a version of the 48K Spectrum ROM designed for use on the Timex Sinclair 2068, so that a 16 bit checksum of the ROM produces the r…

    ... modified a version of the 48K Spectrum ROM designed for use on ... a 16 bit checksum of the ROM produces the result $641F and an ... $41. These are the same values as the standard 48K ROM.

    the ROM? I'd like to try the new ROM out on ...
    rga24 rga24 June 2014 Development
  • 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) …

    ... plus2.rom (32768 bytes). Looking in the Complete ROM Disassembly I made the ... [/code]

    In the 48.rom file I changed:

    the ROM that I need to modify ... can't see if from the ROM disassembly.

    Many ...
    Paddy Coleman Paddy Coleman October 2016 Development
  • The Sinclair ROM questionThe simplest questions are the most difficult to answer. And here is my questions: 1.) Who was the programmer of the ZX Spectrum ROM? 2.) Is there a…

    The simplest questions are the most difficult to answer.
    And here is my questions:
    1.) Who was the programmer of the ZX Spectrum ROM?
    2.) Is there a source code of that (not the disassembly from Ian Logan!)?
    wilko0070 wilko0070 July 2004 Sinclair Miscellaneous
  • Extracting the Multiface ROM?Is there an easy way to save the contents of a real Multiface 128 ROM to tape, on a real spectrum, for the purposes of transferring it to PC for emul…

    ... to save the contents of a real Multiface 128 ROM to ... tape, on a real spectrum, for the purposes ... t want to risk damaging the original EPROM, so I ... place and somehow use the Spectrum to copy it ...

    The M128 ROMs available on the web are a ...
    trellis trellis June 2006 Hardware
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... released that didn't use the ROM, for key input and ... output routines?

    The reason I ask is that ... ResiDOS, which runs in the 0-16K area (it ... problem).

    All the debuggers I've used/seen ... far appear to use the standard RST 10 for ...
    glancaster glancaster February 2007 Development
  • How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…

    ... ' show info related to the draw rom subroutine. The Line-Draw require two ... passed by the register BC and the signs passed by the DE:
    the 'signs' in DE.

    arfgh arfgh June 2010 Sinclair Basic
  • DRAW x,y,a Algorithm - how does the ROM do it?Hi all, Getting on with SpecOS, and one of the things I would love to do is to preserve the original ROM's behaviour when drawing Arcs. This is don…

    ... to do is to preserve the original ROM's behaviour when drawing ... /> I've been reading the Complete ROM disassembly, where they provide an ... Pascal!) implementation of the Arc drawing algorithm implemented by the ROM. Just be ...
    Dunny Dunny August 2010 Sinclair Basic
  • Use PLAY without the 128 ROMHere's a little thing I wrote called SoftPLAY: [url]http://www.worldofspectrum.org/forums/showthread.php?t=45259[/url] Now you can use the PLAY comm…

    ... mode, say for use with the divIDE or SpectraNet.

    the ROM command in RAM. The timing values may ... faster than the ROM version. The click gaps you hear on the original 128 ... #8;[/b] in place of the PLAY command.

    ...
    chev chev October 2013 Sinclair Basic
  • Precisely what is the ROM licencing situation?Freeware use, that is. Are the Speccy ROMs allowed to be used in any utility related to Spectrum emulation, or just in actual emulators? Is it …

    ... , that is.

    Are the Speccy ROMs allowed to be ... the ROM (I'm thinking specifically of the character set), or does the entire ROM ...
    robert@fm robert@fm October 2017 Emulators
  • Mag the Magician - ROM version liberated for free (16K compatible!)Hi all, I just release for free the ROM version of Mag the Magician: [url="http://www.bytemaniacos.com/?page_id=3453"]http://www.bytemaniacos.com…

    ... just release for free the ROM version of Mag the Magician:
    [url ... 3453[/url]

    This ROM is compatible with Interface 2 ... only change your ZX Spectrum ROM with an external one. ... Interface 2 cartridge with this ROM.

    [img]http:// ...
    radastan radastan November 2019 Brand new software
  • Spectrum ROMI downloaded some text files (they are actually the spectrum ROM files but in text) which can be compiled using TASM (or soemthing). I read on WOS th…

    ... files (they are actually the spectrum ROM files but in text) which ... then try them out in the emulators. I think this would ... know what much of the stuff in the text documents means. So ... -I did manage to change the 1982 Sinclair Research Ltd message ...
    Anonymous Anonymous July 2002 Sinclair Miscellaneous
  • ZX PC Interface : The manual, schematics and more info... ZX &lt;-> PC Interface ------------------- Contents 1) The ZX &lt;-> PC Interface 1.1) What is it? 1.2) What does it do? 2) Install…

    ... select the ZX Spectrum ROM or the EPROM you change the switchsetting.< ... option is added in the ROM for
    future ... />
    The ROM will do syntaxchecking for the PRINT-instruction.
    ROM

    The copyright of the ZX ROM belongs to Amstrad. The ...
    Dr BEEP Dr BEEP December 2002 Sinclair Miscellaneous
  • A great ROMBack in the early 90s my ZX clone (called "Cobra" if anyone's interested) had a sort of a "SamRam" (actually an alternate ROM accessed via a NMI) tha…

    ... use of the standard ROM routines.

    I searched the 'Net for ... any information or downloads regarding this great ROM ... is absolutely magnificent. I have the ROM (there are also some scarce ...
    GOC GOC August 2003 Sinclair Miscellaneous
  • TZX and the ZX81Evenin All. EightyOne is now is a state where I can support a more descriptive tape format. I know how some people have been calling for tzx suppor…

    ... All ZX81 tapes use the standard ROM routine. So, for ... Speed Data Block), containing the first program
    4 ... the ZX80/81. Why is there a RAM/ROM ... 0D becomes the ZX81

    "ROM/RAM type ... 0 ZX80 ROM
    1 ZX81 ROM
    2 ASZMIC ROM
    ...
    MikeW MikeW September 2004 Emulators
  • ANN: Gosh Wonderful ROM new version 1.31All those other version were just leading up to this one - The Gosh Wonderful ROM gw03.rom is a replacement for the standard ROM in emulators that al…

    ... -
    The Gosh Wonderful ROM gw03.rom is a replacement for the standard ROM in ... looks just the same as the standard ROM and runs all the same 16K ... handy as the ROM is compatible with Interface 1 and the M.G ...
    Geoff Geoff October 2004 Announcements
  • Spectaculator/zx81.rom/zx printerHi I'm Paolo z I've loaded on Spectaculator6.25 (not registred) the following rom file (renamed zx81.rom) on spec128k: [url="http://www.fruitcake.pl…

    ... (not registred) the following rom file (renamed zx81.rom) on spec128k:
    The cartridge works by taking the standard
    ZX81 ROM ( ... edition 2) and patching the ... a problem of the projecting of zx81.rom file or ...
    paolo z paolo z March 2005 Emulators
  • The legality of emulatorsCan someone please explain to me the legality of selling emulators. I have been told that it is legal to sell an emulator provided no charge is made …

    ... someone please explain to me the legality of selling emulators. I ... charge is made for the code from the Spectrum ROM, but how does ... emulator and the ROM code, how can they claim that the ROM code is ...
    DavidLevy DavidLevy June 2005 Emulators
  • +3 rom disk load/save routines?I`ve been looking everywhere for some documented listing of the +3 rom load/save routines. I want to convert some games to use disk instead of tape.…

    ... for some documented listing of the +3 rom load/save routines.
    The Adventure, it has a load ... to use disk instead of the tape rom load/save would suffice ...
    FrankT FrankT September 2005 Sinclair Miscellaneous
  • spin, and +3e rom, ftpis there anywhere that I can download Spin, and the +3e rom image, from an FTP server. I am at school, and .ZIP files are blocked for "security" (non…

    ... I can download Spin, and the +3e rom image, from an FTP ... "security" (none of the computers have winzip!), so the only way I ... home, so I only use the internet at school, except in ...
    guesser guesser September 2005 Emulators
  • IF1 ROM v3 image?Did an image of the IF1 ROM v3 ever materialise anywhere? Ta Jim

    Did an image of the IF1 ROM v3 ever materialise anywhere?

    Ta

    Jim
    jp jp December 2005 MIA/STP/SDP
  • Calling ROM routinesFirstly, sorry if this is the wrong forum to post this in, but I wasn?t quite sure under which heading is best fitted. I?m trying to figure out how…

    ... figure out how to invoke the LOOKVAR ROM routine to discover where ... a variable is stored in the variable ... mean I can store the name of the variable in any random ...
    trellis trellis July 2006 Development
  • Questions from the new owner of a grey Spectrum +2I managed to pick up a grey Spectrum +2 off of ebay with cheap shipping (I'm in the US... it was $13 total and it has a Donkey Kong tape inside) and …

    ... I want to replace the ROM with an english version. ... to the buss work ok and with the+3e ROM? It ... looks like the least time ... but replacements that look like the originals?

    ... there plans for running the cassette lines to din ...
    JamesD JamesD September 2006 Hardware
  • .mgt and if2 .rom filesI did search the forums before I started this thread. Is there an emulator (windows version) that can load the .mgt and the IF2 .rom files? I tried t…

    I did search the forums before I started this ... version) that can load the .mgt and the IF2 .rom files?
    I ... tried the ones that work in ... up trying to configure the .ini files. The emulators that run in ...
    zxbruno zxbruno March 2007 Emulators
  • Spectrum 48K ROMHi Can anybody help I have an Issue 6a Circuit Board which has a faulty ROM Chip. Is it possible to program a ROM Chip with the 48K ROM and fit it as…

    ... possible to program a ROM Chip with the 48K ROM and fit it ... . I notice on the 6a board that between the IC 27 PCF1306P ... what they are for. At the moment I have a black ... unused no marks on the pins, I changed the ROM link to H ...
    Martin Baugh Martin Baugh April 2007 Hardware
  • Silly little question written at the stroke of midnight.The run-of-the-mill Sinclair Spectrum is controlled by a 16K ROM program which can be divided into three major parts: 1. I/O routines 2. BASIC interp…

    The run-of-the-mill Sinclair Spectrum is controlled by a 16K ROM program ... " ... Could we say that the Speccy ROM is not only an OS ... garbage ... just the core controlling the rest as per the three mentioned above ...
    Skarpo Skarpo June 2007 Sinclair Miscellaneous
  • Emulating the Plus3e in SpinHi. At the weekend I finally got my ass in gear and started to go through my many +3 discs, with the aim of transferring a lot of the content to a CF…

    ... zxspin, as it emulates the DivIDE and the plus3e (tho' I'm ... : you need to set the DivIDE ROM to Writeable to get it ... to work, it seems). Using the ... question-marks and things). Interestingly, the partitions are listed perfectly well ...
    icabod icabod July 2007 Emulators
  • +3e ROM`sHi all, After using my +3 again (new drive belt) I also use a Multiface 3 to get my programs onto the A: drive. From what I understand the MF3 will b…

    ... if I were to get the +3e ROM`s?

    ... Has any one got the +3e ROM`s? How useful do you ... compared to an original +3 ROM`s?

    How ... get programs typed or from the Internet onto a A: ... br />
    My method at the moment is with WinTZX via ...
    swift240 swift240 July 2007 Hardware
<1234567…34>

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