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<1…14151617181920…34>
  • Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??

    ... been enough room in the 16k ROM to fit in a PRINT ...
    monty.mole monty.mole March 2004 Sinclair Miscellaneous
  • +D/Disciple games archive?Hi all, Having finally got my disciple to work, I'm starting to have a look at hacking multiload games. Is there any archive on the web with games t…

    ... RAM bank in the 8-16K area that could be overlayed ... on top of the ROM. The +D has something similar ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Sinclair Miscellaneous
  • +D/Disciple games archive?Hi all, Having finally got my disciple to work, I'm starting to have a look at hacking multiload games. Is there any archive on the web with games t…

    ... disk RAM into 8K-16K, overlying the ROM and then jump to ... that the Spectrum ROM reappears in the 0-16K area.

    16K area and jump into your ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Sinclair Miscellaneous
  • TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…

    ... Spectrum. I have altered the ROM-routines at #556 (LOAD ... your harddisk, diskette or CD-ROM.

    It ... TAP-file using the ROM-routine to load (like ... eprom holding the Spectrum ROM in lower bank for ... the upper 16K to hold an altered ZX81 ROM with ...
    Dr BEEP Dr BEEP July 2004 Sinclair Miscellaneous
  • Program sizeI am typing a basic program into a ZX and I need to find out exactly how much memory it is using. Is there a way to calculate this? :confused:

    ... /> An unused routine in the ROM is used that subtracts the ... amount of memory (including the 16K ROM) that is used so this ... caters for any section of ROM and allows for maskable and ...
    Geoff Geoff August 2004 Sinclair Miscellaneous
  • AmericaI've been wondering, was the Spectrum released in America? Was it popular? Are there Spectrum games that were made in America? There must be a few A…

    ... -- the HOME bank which contains 16K rom and 48K ram as in ... patches, the result being the ROM supported 48K Spectrum basic + ... points different from the 48K ROM; this causes the celebrated ... mentioned everywhere. The 2068 ROM has been investigated to determine ...
    Alcoholics Anonymous Alcoholics Anonymous August 2004 Games
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    ... copy the 48k ROM file into the bottom 16k of that.
    Dunny Dunny September 2004 Development
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    [quote]A region of memory, 65536 bytes in length, to use as spectrum memory. You need to copy the 48k ROM file into the bottom 16k of that.[/quote]

    How do you copy 48K of information into 16K of space?

    MadDoc,
    MadDoc MadDoc September 2004 Development
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    LOL

    The 48k ROM refers to the ROM of a 48k model of the Spectrum. The size of that ROM itself is of course 16K.
    Metalbrain Metalbrain September 2004 Development
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    ... do I (a) find the 16K ROM from the Speccy and (b ...
    MadDoc MadDoc September 2004 Development
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    ... do I (a) find the 16K ROM from the Speccy and (b ... />
    You can find the ROM bundled with any emulator, or ...
    Dunny Dunny September 2004 Development
  • If you could re-design the Spectrum...Let's suppose you could go back in time to the beginning of the Eighties. The Spectrum is being designed as the revolutionary successor to the alread…

    ... as much in to the 16K ROM as possible.
    cyborg cyborg October 2004 Sinclair Miscellaneous
  • +2A "Ghost" programHi all - first time posting here, so I'll do a quick background - I was a (far too) dedicated 48k and +2A gamer in my younger days. Thanks to the mi…

    ... is resolve any caused by ROM differences.

    One of ... you to put a new 'ROM' in the lower 16k.
    cyborg cyborg October 2004 Games
  • +2A "Ghost" programHi all - first time posting here, so I'll do a quick background - I was a (far too) dedicated 48k and +2A gamer in my younger days. Thanks to the mi…

    ... to put a new 'ROM' in the lower 16k.
    [/quote]
    rom. :)

    (maybe it's ...
    Alessandro Tommasi Alessandro Tommasi October 2004 Games
  • Compressed Loading ScreensHi everybody From my speccy memories I could swear I could remember games with loading screens that took less than normal time to load. But up until…

    ... :53, Erlstoned wrote:
    3 16k games at once? Interesting. How ... by IM2 through the normal ROM-routine, but there is a ...
    Dr BEEP Dr BEEP November 2004 Sinclair Miscellaneous
  • MemoryI am writing a game for the Spectrum and need to store a lot of map data. What is the lowest address I can start to store the data at ?

    ...
    24064 - 56831 ZX81 ROM and RAM (16K)
    56832 - 65535 Emulator ... . Be sure not to use ROM-routines that uses SYSVARs then ...
    Dr BEEP Dr BEEP December 2004 Development
  • What was in the 'Shadow/Unicorn' add on box?'Shadow of The Unicorn'. What was actually contained in the add on box? Was it just extra memory?

    It was just 16K of memory which (I guess) had a simple I/O port to page it in/out of ROM space.
    Woody Woody February 2005 Games
  • 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…

    ... 's a ZX Interface 2 ROM cart).

    ... . renamed the file to .rom (Spectaculator insists that IF2 carts ... are .rom), switched to Spectrum 128 ... to make a custom ROM of the correct pages ... around a specific number of 16K ROM banks.

    ...
    Jon Needle Jon Needle March 2005 Emulators
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... printed out is contained in ROM starting at address 5010 decimal ... printed is fixed and in ROM, you may end up with ... of more use when using ROM routines in a machine code ...
    na_th_an na_th_an April 2005 Development
  • Swedish SPectrum ROM foundFrom a contributor to my inbox: [quote] Went to a flea market today to look for old computers and found a rubber-key Speccy. Didn't really look at i…

    ... SAVE "ROM" CODE 0, 16384 in the speccy, then export 16K from ...
    na_th_an na_th_an April 2005 Development
  • Swedish SPectrum ROM foundFrom a contributor to my inbox: [quote] Went to a flea market today to look for old computers and found a rubber-key Speccy. Didn't really look at i…

    16K ROM = 27128 EPROM.

    You ...
    Dr BEEP Dr BEEP April 2005 Development
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... Zip file which contains a ROM (and the assembler listing, zasm ... 'd replaced _all_ the lower 16K RAM chips in my dead ... works!

    Maybe that ROM could be of use to ...
    Spirantho Spirantho June 2005 Sinclair Miscellaneous
  • Weird loaders; 1) Why? 2) How? (Curiosity question)Hello again. Sorry to be asking/posting so much today, but I've just arrived here and am plumbing the depths of nearly 22 years of making cups of te…

    ... ]


    1) Copy ROM loader to RAM.

    16K game. (Wouldn't really be ...
    Digital Prawn Digital Prawn June 2005 Sinclair Basic
  • Commodore 16 (yuk!) help neededJust got hold of a whole bunch of retro computers. Slowly working through them, fixing, canibalising, dumping etc. does anyone know what power suppl…

    ... Commodore 264 range, came with 16k of ram was released in ... with software built into the ROM, 3+1 which was an ...
    C16 C16 August 2005 Sinclair Miscellaneous
  • Commodore 16 (yuk!) help neededJust got hold of a whole bunch of retro computers. Slowly working through them, fixing, canibalising, dumping etc. does anyone know what power suppl…

    ... Commodore 264 range, came with 16k of ram was released in ... with software built into the ROM, 3+1 which was an ...
    C16 C16 August 2005 Sinclair Miscellaneous
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... slow/dead. Its an expanded 16k spectrum with a foxx memory ... it a Sinclair 128k toaster rom?

    Thanks ...
    FrankT FrankT September 2005 Sinclair Miscellaneous
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... slow/dead. Its an expanded 16k spectrum with a foxx memory ... it a Sinclair 128k toaster rom?
    [/quote]

    You ... really very little point. The ROM is identical apart from the ...
    Spirantho Spirantho September 2005 Sinclair Miscellaneous
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... Zip file which contains a ROM (and the assembler listing, zasm ... 'd replaced _all_ the lower 16K RAM chips in my dead ... ). I first burnt your test rom. Spectrum initialized and screen looked ... meaning of the picture TestSpec2.rom displays?

    Timppa
    Timppa Timppa September 2005 Sinclair Miscellaneous
<1…14151617181920…34>

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
rom 15.6K 29.7K
16k 5.5K 7.7K

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