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Search Again :: Adv Search 1000 results in 0.034s
<1234567…34>
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    ... /> I am looking for a 16K Rom-code (to fit into the ... with Winstons Diag Board for Rom code storage and Piters simple ... the Diag board IF 1 rom paging in does not ... I am looking for a rom which already has the ... I found the sea change rom but the used header format ...
    maskenlos maskenlos November 2008 Hardware
  • Issue with TV signal + Inductor Coil (16K Issue 2 Speccy)Hello guys, I just got a 16K Issue 2 Speccy from eBay. It was sold as not working so I knew there would be some work needed before it's working ag…

    ... /> I just got a 16K Issue 2 Speccy from eBay. It was ... - https://youtu.be/pQz6yP0PuIA
    2) Measurements - https://youtu.be/vwgwX_Um73k
    Vaylo Vaylo August 2017 Hardware
  • Spectrum +2C Rom by Andrew OwenHi, I've downloaded the Spectrum +2C rom on the Philip Kendall's site (plus2c-0.rom). Can I replace the original BASIC 16k ROM with a 27C128 burned …

    ... downloaded the Spectrum +2C rom on the Philip Kendall's ... replace the original BASIC 16k ROM with a 27C128 burned ... with that rom file on a "real" ... gray Spectrum +2? Are the roms "socketed" ... ? If it is - what rom should I remove?
    < ...
    dg67 dg67 October 2008 Hardware
  • 16k Issue 2 board and DivIDE load errorsI today got an Issue 2 16k board (thank you PMSR) that i added the logic and ram on to get a 48k machine. However, I am unable to load software from …

    I today got an Issue 2 16k board (thank you PMSR) that ...
    Johan1973 Johan1973 August 2012 Hardware
  • 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…

    ... method of timing the interrupt frequency - and handily enough ... 69888 then cause your interrupt and update your display ... 69888 Tstates?
    - 2. Any chance of explaining ... only has the first 2 chapters (not sure why ... I (a) find the 16K ROM from the Speccy and ...
    MadDoc MadDoc September 2004 Development
  • IF2 Rom snapshot creationHi, is it possible convert a Speccy 16k snapshot to a Interface 2 Rom file? I've the original Ultimate Pssst, Cookie, Trans-am and Jetpac tapes and …

    ... of space in our new 16K ROM.
    The main CODE block ... original Sinclair 48K ROM to do this.

    2) the game ... Sinclair 48K ROM in our new ROM (this will cope with Interrupt, Keyboard ... /> 3) Despite doing 1) and 2) the game still showed garbage ...
    Jimmy Jimmy April 2008 Emulators
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... ,2;3,4.
    [*]Based on the ZX81 ROM ... [*]IY register available in interrupt mode 1
    [*]Key ... : RESET.
    [*]Lower 16K ROM can be used on its ... present in the original ROM.
    [*]Number codes ... .
    [*]Only 32K ROM supported by devices that force ...
    chev chev October 2013 Sinclair Basic
  • 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
  • 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…

    ... tapes use the standard ROM routine. So, for ... a RAM/ROM Addon section, yet 1k/16k ZX81s are ...
    2 4k
    3 8k
    4 16k
    ... 0 ZX80 ROM
    1 ZX81 ROM
    2 ASZMIC ROM
    3 ... TREE-FORTH ROM
    ...
    MikeW MikeW September 2004 Emulators
  • 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…

    ... Spectrum is controlled by a 16K ROM program which can be divided ... /> 1. I/O routines
    2. BASIC interpreter
    3. Expression ... we say that the Speccy ROM is not only an OS ...
    Skarpo Skarpo June 2007 Sinclair Miscellaneous
  • Upgrading issue 2 to 48KWould it be possible for me to upgrade my (still fully operational) 16K issue 2 Speccy to 48K? I presume that all I would need to do would be to fit …

    ... my (still fully operational) 16K issue 2 Speccy to 48K? I presume ...
    Sabreman64 Sabreman64 April 2008 Hardware
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... I should select the correct rom first, before calling this ... />
    Bit 4: ROM select. ROM 0 is the 128k editor ... 128k syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    rom again, if I'm using 48K Basic together with an interrupt ...
    bverstee bverstee April 2010 Hardware
  • Guide to upgrading your 16K Issue 2/3 ...Hi, Because I sell upgrades on eBay to make 48K Spectrums out of 16K ones, I've made a little fitting guide here: [url]http://www.mutant-caterpilla…

    ... make 48K Spectrums out of 16K ones, I've made a ...
    Spirantho Spirantho December 2011 Hardware
  • Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…

    ... machines with the OpenSE ROM (or similar ROM which tokenizes).
    ... />
    1. Remove the 16K Spectrum ROM
    2. Replace it with a ... />
    2. Dead cockroach.
    This is needed because a ROM has ... chip enable on the ROM. Both the ROM's chip enables ...
    Winston Winston August 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... ULA chip fitted in Spectrum 16K/48K/Plus machines.

    Platform ROM: 2.86 EUR
    Isolation resistors ... time needed for the platform ROM to transfer the configuration to ... the FPGA and the platform ROM)...
    [img]http://www. ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • PCB for romselector for toastrack/grey +2 giveawayHi guys. I've tried my hand at hardware design, and to my great surprise, my very first design worked as expected... :razz: I wanted to be able to …

    ... plug into the speccy's rom socket.
    A ... rom
    2. The original grey +2 rom
    3. The OpenSE rom ... /> 5. The spanish 128K rom translated to english
    ... Farrow's Jupiter Ace emulator rom
    7. Paul ... . Paul Farrow's ZX81 emulator rom

    Be ...
    Rorschak Rorschak March 2013 Hardware
  • New from Paul Farrow, the ZXC4This is exciting stuff!!!! Sorry if ive stepped on your toes Paul, wanted people to hear about it!!! [QUOTE]Hi I?m happy to announce the release o…

    ... pushing the ZX Interface 2 ROM cartridge mechanism far beyond ... it also allows full 16K ROM programs to be used. ... edition 1 ROM with the later edition 2 version, or ... with a ZX Interface 2 or a compatible interface ... GBP), and the Spectrum +2 Keypad socket (16 GBP). ...
    Macc Macc July 2014 Hardware
  • Great to be back....and with fun to comeHi all, 1982: I bought a new 16k issue 2 in 1982, eventually got microdrives and a dktronics keyboard (version 1). Built a home made eprom programme…

    ... /> I bought a new 16k issue 2 in 1982, eventually got microdrives ... so I could modify the rom, and used the Spectrum running ...
    IanJ IanJ August 2014 Announcements
  • The right size for Standard Betadisk 48k TR-DOS v4 ROMs is 8k and not 16kHi Emulator-Authors, I just want to clarify, that Betadisk 48 ROMs TRDOS v4 ROMs has size of 8 kByte and not 16k Byte. Only TRDOS v5 (of Beta…

    ... of 8 kByte and not 16k Byte.

    Only TRDOS ... 8k ROMs together to one 16k ROM (e.g. with MSDOS COMMAND ... copy /b TRDOS48K.ROM+TRDOS48K TRDOS.ROM).
    This 16k ROM can than be ... state the size of TRDOS.ROM is incorrect).

    Please ...
    Luzie Luzie September 2015 Emulators
  • A videoaventure in 16K - Cartridge for IF2Hello all, After an intermitent work I am near of reléase my new game: a videoaventure (exploration game) in 16K ROM carttridge. Your objetive is…

    ... a videoaventure (exploration game) in 16K ROM carttridge.
    Your objetive is ... reléase source code, and 16K ROM file, after finish him.
    16K native cartridge.

    ... with Interface II (ZX Spectrum 16K RAM model too).
    < ...
    radastan radastan March 2017 Development
  • If you had four roms...Just wondering if you were designing a Spectrum from scratch, and you used a 27512 EPROM, which would hold about 4 spectrum roms, what you would inst…

    ... ;
    1. Normal Spectrum ROM.
    2. 128K ROM.
    3. Interface 1 ... ROM ( and of course, simulated ... an Interface 1 or Interface 2.... Both would be part of ... and mapped over the lower 16K ROM space as well as the ...
    cj7hawk cj7hawk February 2021 Hardware
  • WANTED: tape replacement for +2?Any tape replacement possible for a +2? My +2 works wonderfully but the incorporated datacorder is simply worn out and won't load ANYTHING. Dirty sig…

    ... slightly higher voltages from Issue 2 machines. As can be seen ... To illustrate this, here are 2 short assembler routines:

    2 and 3 Spectrum (from techinfo ... the upper 32K RAM and 16K ROM are working independently of each ...
    Dr BEEP Dr BEEP November 2001 Sales
  • My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …

    ... pages 0-3 in 16K blocks.
    16k of each of these ... is used, else the top 16k.
    D3 - D4 - selects ... .
    D6 - D7 - selects the 16k portion of the VRAM in ... RAM, RAM00 is used as ROM
    2) VRAM occupies various parts ...
    cyborg cyborg October 2002 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 ... points different from the 48K ROM; this causes the celebrated ... mentioned everywhere. The 2068 ROM has been investigated to determine ... disk system with CP/M 2.2 (realized in Portugal; this is ...
    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…

    ... TStates.

    [quote]
    - 2. Any chance of explaining to ... 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
  • 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…

    ... it'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 ... a specific number of 16K ROM banks.

    ...
    Jon Needle Jon Needle March 2005 Emulators
  • ZX-PC InterfaceRight - i'm 34 and I cant take the pain of waiting for tapes to load any more - somethings gotta give ( either the tape deck or me ). I've seen a 'Z…

    ... how it will affect the +2 (I dont know how the ... are made up on the +2) but the +2A will run ... Eprom containing the origal ROM and modified 16K ROM for ZX-PC interfacing ... details
    (might come from 2 emailaddresses, but I will place ...
    Dr BEEP Dr BEEP December 2005 Hardware
<1234567…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
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    John Elliott on April 21
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    mel the bell on April 20

HitBox

Word Docs Hits
interrupt 2.6K 4.5K
16k 5.5K 7.7K
rom 15.6K 29.7K
2 91.4K 149.6K

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  • Announce: EmuZWin 2.5 Release 2.2 Post-FinalEmuZWin Version 2.5 Release 2.2 post-FINAL (16-Oct-2004): <br /> [-] A small pause added between TAP blocks while loading tape from .TAP image (other…
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