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<1234567…34>
  • 48K ROM copyrights holderHi everyone I would like to check with you about the rights to the 48K ROM. It seems the current rights owner is Sky UK. Did anyone have any recen…

    ... about the rights to the 48K ROM. It seems the current rights ... statement from Sky regarding the rom rights (like Amstrad had ... which would rely on the ROM routines.
    While probably ... using the original ZX Spectrum ROM (48K) would make things easier.
    claudiu_cwg claudiu_cwg October 2020 Sinclair Miscellaneous
  • A New 21 UDG Plotter BASIC ProgramHello All, Here goes... My first proper Spectrum program for 20 years! And the reason why I've been asking about multiple banks of UDGS recently. …

    ... and the Gosh Wonderful Rom

    48K Mode Only

    Phil2 Phil2 June 2007 Sinclair Basic
  • Custom SAVE Routine work on emulators?Hi, I'm developing a SAVE routine derived from the one present in ROM 48K, and I'm trying to get it work on several emulators (X128, Spectaculator, …

    ... from the one present in ROM 48K, and I'm trying to ...
    worldxxisoft worldxxisoft September 2008 Emulators
  • Interrupts - been a while !Not sure if this is the right place for this (1st post on WOS, but been a speccy user since Dec'84 :-o (yes I am that old ! :p) ), But I can't for …

    ... the top of the Speccy ROM (48K mode).

    it could ... version of the 48 mode ROM ?

    -edit- ASp is ...
    AGAfaster AGAfaster March 2009 Sinclair Miscellaneous
  • Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…

    ... know there is 16k of ROM & 48K of RAM, but where ...
    micpringle micpringle April 2010 Emulators
  • Spectrum helpHello all I run a website which is some sort of community/game information hybrid. It's dedicated to most gaming platforms (currently 62 of them). I…

    ... had 16k of that as ROM - 48k + 16k = 64k total addressable space ... and the bottom 16k of ROM and the +4's even ...
    cyborg cyborg November 2002 Games
  • Galaksija emulator for ZX Spectrum +3/+2A(black)This is a NEW program/utility/game pack for ZX Spectrum. It is basically an emulator of an ex-Yugoslav computer "Galaksija" which is also Z80 based. …

    ... NEW CARTIDGES, then select "ZX81 ROM 48K Spectrum", setting all call to ...
    Dr BEEP Dr BEEP February 2007 Emulators
  • What Shop Did Spectrum come fromWhat shop was your spectrum purchased at? I my mum got ours for Christmas 1983 from W.H.Smith in Oxford. The guy in the shop asked my Mum if she wa…

    ... Mum if she wanted the Rom or Ram version. I think ... he meant was 16K or 48K. I can see now that ... advertising blurb for the 48K speccy saying "16K ROM, 48K RAM" and thought ...
    gasman gasman September 2007 Sinclair Miscellaneous
  • A 64K Spectrum?? Is this real?I have seen avertised on Ebay today two boxed ZX Spetrum Rubber Keys. One 16K and the other a 64K upgraded model?? Is this for real??? [url]http://…

    ... memory type. It is 16K ROM+48K RAM so totally 64K MEMORY.
    LCD LCD November 2008 Sinclair Miscellaneous
  • more memoryi dunno if this has been mentioned, apologies if it has (i cant be arsed to search :P) Ive just been reading about the zx81 and it popped into my he…

    ... 128K onwards had) as 16K ROM + 48K RAM used up the entire ... programmer - you couldn't get 48K basic to take advantage of ... it without a replacement ROM and then it gets really ... but it required a new ROM.
    BloodBaz BloodBaz January 2010 Hardware
  • Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…

    ... know there is 16k of ROM & 48K of RAM, but where ...
    guesser guesser April 2010 Emulators
  • ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…

    ... :27:06.531 Z80Serializer.loadFromStream: ROM 48K loaded from snapshot!
    Warning ... :27:07.906 Z80Serializer.loadFromStream: ROM 48K loaded from snapshot!
    Warning ... :27:08.468 Z80Serializer.loadFromStream: ROM 48K loaded from snapshot!
    Warning ...
    Ralf Ralf May 2012 Emulators
  • Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…

    ... . With the standard non-patched ROM (48K machines), the NMI routine does ... access page in their own ROM that offers a suitable NMI ...
    mcleod_ideafix mcleod_ideafix June 2012 Development
  • Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…

    ... . With the standard non-patched ROM (48K machines), the NMI routine does ... access page in their own ROM that offers a suitable NMI ...
    takapa takapa June 2012 Development
  • The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…

    ... A13 input to the ROM does not come directly ... That means that when the ROM and RAM are swapped, A13 ... to the ROM remains the same. You ... the other half of the ROM.

    You ... copies of the same rom?

    48k emulation? 128k?
    ...
    Severino Severino February 2013 Hardware
  • Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…

    ... don't know why but AMI ROM in the newer mainboard models ...
    jimre jimre June 2014 Hardware
  • 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…

    ... and the pin of the ROM - nothing! No continuity! ... hadn't destroyed my original ROM?! So I replaced it ... I didn't destroy my ROM! Just soldered in a ... me to send my original AMI ROM, or would you rather ... have your Hitachi ROM returned? I don't ...
    namtip namtip August 2015 Hardware
  • Wanted: Timex 2068 with 48K rom...and more if possible. I checked all the threads I could find about the TS2068, checked Jarek's website, even sent a few pms and asked a few peopl…

    ... get a TS2068 with a 48K rom, but I would love to ... one to sell, with a 48K rom already instaled, or with all ...
    zxbruno zxbruno January 2007 Wanted
  • 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 ... the pins, I changed the ROM link to H but all ...
    Martin Baugh Martin Baugh April 2007 Hardware
  • Q. on a book (48k/128k ROM dissassembly)Would you, great WoSsers, please recommend THE greatest, bestest and preferably completestest Speccy ROM (any 48k & 128k (not QL, zx80/81, nor clones…

    ... , bestest and preferably completestest Speccy ROM (any 48k & 128k (not QL ...
    Skarpo Skarpo April 2007 Sinclair Miscellaneous
  • Repair options for my own dear old Spectrum 48k?Hello all, This is my first post to this wonderful forum, which is part of a truly great website! My name is Arnold, and I live in Utrecht, The Nethe…

    ... .

    My ZX Spectrum 48K doesn?t function anymore. It ... Z80 as well, and the ROM (AMI 8427ACJ) gets very hot. All ...
    ZXHistory ZXHistory October 2009 Hardware
  • Odd keyboard behaviour due to a single bit failure in +3 ROMI've just fixed a spanish +3, which, among normal issues (drive belt missing), presented a very strange one: the keyboard autorrepeated without a del…

    ... either in +3 BASIC and 48K BASIC. Even the +3 initial ... is it possible that the ROM is malfunctioning specifically while executing ... /> I changed the ROM chips (mask ROM's manufactured by AMI) and put ... 0312h at ROM 3): original ROM has 05h here. My ROM has 01h ...
    mcleod_ideafix mcleod_ideafix December 2009 Hardware
  • Different ZX 48K ROM versions?Is there only one official ROM version for the ZX 48K from Sinclair? Micky

    Is there only one official ROM version for the ZX 48K from Sinclair?


    Micky
    -Micky -Micky March 2010 Hardware
  • Is there a ROM modification (48K) for load without typing LOAD""?The target is to play with 48K machines with keyboard broken, or an alternative solution for new clones like Superfo instead of making a new keyboard…

    ... target is to play with 48K machines with keyboard broken, or ... easy solution is change the ROM for other that initalites in ...
    antoniovillena antoniovillena April 2012 Development
  • Distribution status for Beckman Innovation AB 48K ROMToday while practicing the black art of WAV to TZX conversion on my copy of the Beckman Innovation AB 48K rom, I wondered who owns the copyright and …

    ... of the Beckman Innovation AB 48K rom, I wondered who owns the ... even have to, considering the rom has copyright from Sinclair Research ... , thereof):

    > Nordisk ROM, (c) Sinclair Research Ltd & ...
    pmsr pmsr July 2012 Hardware
  • 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…

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

    Does anyone ... performed these tests on the ROM? I'd like to ... try the new ROM out on these games.
    rga24 rga24 June 2014 Development
  • 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: ... ROM anymore to read out, because my Beta-Disk 48k ... was upgraded to
    Vision GUI with ROM- ...
    Luzie Luzie September 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 ... crashing 48K or crashing diags.

    Sanity check ROM burner ... reburn the 27c256 with stock ROM (previous attempt had been ...
    witchy witchy December 2015 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
  • 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

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ami 70 78
rom 15.6K 29.7K
48k 20.9K 29.1K

Related Threads

  • Searching for correct Betadisk 48k TR-DOS v4.12 ROM (Save ROM via TRDOS-Prompt to Disk)Hi,<br /> <br /> I have two ROM-Files which should be read out from an original Betadisk 48 Interface TRDOS v4.12 (ROM-Size 8k).<br /> But when I …
  • Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php<br /> <br /> I found the following code:<br /> [code]<br /> CHADD equ 23645 ; Location of…
  • 48k / 48k+ Keyboard MembranesCan anyone out there help me to locate a set of new keyboard membranes for my Speccy 48k (rubber keys) and 48k+ . <br /> I've just dusted them off af…
  • 48K ROM/EpromAnybody know if the 27C128 Eprom will work in a 48K machine withut modifications? If not, what mods do I need to make?<br /> <br /> Ta!
  • Wanted: Timex 2068 with 48K rom...and more if possible.<br /> <br /> I checked all the threads I could find about the TS2068, checked Jarek's website, even sent a few pms and asked…
  • Spectrum 48K ROMHi<br /> 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…
  • Q. on a book (48k/128k ROM dissassembly)Would you, great WoSsers, please recommend THE greatest, bestest and preferably completestest Speccy ROM (any 48k &amp; 128k (not QL, zx80/81, nor cl…
  • Different ZX 48K ROM versions?Is there only one official ROM version for the ZX 48K from Sinclair?<br /> <br /> <br /> Micky
  • Is there a ROM modification (48K) for load without typing LOAD""?The target is to play with 48K machines with keyboard broken, or an alternative solution for new clones like Superfo instead of making a new keyboard…
  • Distribution status for Beckman Innovation AB 48K ROMToday while practicing the black art of WAV to TZX conversion on my copy of the Beckman Innovation AB 48K rom, I wondered who owns the copyright and …

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