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  • Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …

    ... to avoid relying on the ROM contents as it might fail ... /> [code]detect ld bc,$7ffd ; official paging port
    ld hl ...
    FishFinger FishFinger December 2017 Development
  • Routines listHi everyone I'm looking for a complete list of Z80 routines (8252, 8859, 5633...) Does it exist? Thanks

    Hi everyone
    I'm looking for a complete list of Z80 routines (8252, 8859, 5633...)
    Does it exist?
    Thanks
    alchemist alchemist May 2018 Assembler
  • New game: DOOM PITHi everyone, I am proud to announce the exclusive physical release of [b][i]Doom Pit,[/i][/b] the official sequel for Clive Townsend's previously …

    ... ]Doom Pit,[/i][/b] the official sequel for Clive Townsend's ... as digital version on CD-ROM are available in:
    Italiano ...
    Alessandro Grussu Alessandro Grussu July 2018 Brand new software
  • Max Pickles I - New Game from World XXI Soft Inc.World XXI Soft announces the release of Max Pickles I, an action arcade with puzzle flavors, and the first in the Max Pickles saga, and his tragic st…

    ... standard ROM.
    - 100% written in Basic, except M/C routines in ...
    worldxxisoft worldxxisoft August 2018 Brand new software
  • is there a way of bypassing the rom and having 64 columns mode running all the time?i have tried various 64 column print routines but none of them seem to do this. i would like it to do 64 column mode for listings, typing, editing, p…

    i have tried various 64 column print routines but none of them seem to do this. i would like it to do 64 column mode for listings, typing, editing, printing to the screen etc. is this possible or has it already been done somewhere?
    digital digital September 2018 Development
  • Films and TV shows that you're surprised didn't get an official game.Looking through the archive and see there are no games based on [b]Starfleet[/b], [b]Dogtanian And The Three Muskerhounds[/b] or [b]The Mysterious Ci…

    ... Eastenders got it's own official game then there must be ...
    Nick Nick September 2018 Games
  • Bug fixed ROMHi Folks, Is there a bug fixed 48K ROM that is totally compatible with the original? I have searched the internet but the ROMs I have found all s…

    Hi Folks,

    Is there a bug fixed 48K ROM that is totally compatible with the original? I have searched the internet but the ROMs I have found all seem to have extra functionality.

    Many thanks

    Paddy
    Paddy Coleman Paddy Coleman October 2018 Hardware
  • Z80, and 6502, in comparisonI was wondering about how each of these compared in terms of performance. The Commodore 64 had a 6502 @ 1MHz, and graphics processor VIC which took …

    ... down to programming. The spectrum rom has a floating point calculator ... if they wrote their own routines. Its seems like they would ... line drawing routines, rather than the one in the rom , as the ...
    dmsmith dmsmith December 2018 Hardware
  • New game: SOPHIA II[img]http://www.alessandrogrussu.it/zx/Sophia2.png[/img] Hi fellas! After the [url=https://www.worldofspectrum.org/forums/discussion/56771/comi…

    ... loading routines have been totally rewritten by employing the shadow ROM's ...
    Alessandro Grussu Alessandro Grussu February 2019 Brand new software
  • New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…

    ... and it uses the 3DOS ROM routines and RAM paging to load ... that swapping the +3 48k ROM with the original Sinclair one ... to swap in another ROM (bank 4->ROM). This improved things ...
    TomD TomD May 2019 Development
  • Flashing eeproms for a +3 - which ROM on what chip?I am wondering which ROMS go on which chip? I know the +3 as two ROM chips, ROM A and ROM B, and that I need version 4.0 roms (images from http://…

    ... the +3 as two ROM chips, ROM A and ROM B, and that ... and 3).

    Does ROM A have 0 and 1 ... , and ROM B have 2 and 3 ...
    colourclash colourclash May 2019 Hardware
  • im looking for a poke or a routine that changes the cursor editor for the 48kive had a look at a few cursor routines and pokes published here in the forum but they dont seem to work. it says you can change the color of the fla…

    ... look at a few cursor routines and pokes published here in ... is this possible, not using rom writes?
    digital digital June 2019 Assembler
  • Any other ROM cartridge / Interface two software produced for the SpectrumI just recall from the ZX Spectrum catalogue a few games were also produced on ROM cartridge, but was there any other stuff - utilities, languages or…

    I just recall from the ZX Spectrum catalogue a few games were also produced on ROM cartridge, but was there any other stuff - utilities, languages or stuff ever released in this format?
    dmsmith dmsmith August 2019 Hardware
  • How can I get Residos to work with SpecEmu divIDE Emulation? Residos ROM?Someone got Residos (current version 2.30) working with SpecEmus divIDE-Emulation? Where can I get the needed 8k-ROM/.BIN-File as SpecEmu needs e.g. …

    Someone got Residos (current version 2.30) working with SpecEmus divIDE-Emulation? Where can I get the needed 8k-ROM/.BIN-File as SpecEmu needs e.g. for divIDE-esxDOS-Emulation?!
    Luzie Luzie September 2019 Emulators
  • 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 I found the following code: [code] CHADD equ 23645 ; Location of SOS variable CHADD ld…

    ... a CALL to TRDOS/Betadisk-ROM (15619 on TRDOS v5).
    ROM?
    Luzie Luzie October 2019 Development
  • Currah uSpeech ROM Paging and BootyHi, When I emulated the Currah uSpeech for [url="http://www.inkland.org.uk/inkspector"]InkSpector2[/url], I made it page in its own ROM on memory …

    ... to enable the uSpeech ROM is this Booty code ... $0038 and pages its own ROM in, when the ‘ret’ ... 10 in the ZX Spectrum ROM, but since the uSpeech ... ldir instruction above) the uSpeech ROM is executed. The Z80 ... 0011 in the ZX Spectrum ROM which looks like this:
    inky inky October 2019 Hardware
  • ZEsarUX Beta 8.1Hi! I have uploaded a new ZEsarUX 8.1 BETA version. You can download compiled versions for Windows, Mac, and the source code from: https://gith…

    ...
    -optimized ula,lores render routines: 2% less cpu on my ... bug loading .sna files when rom 1 paged in
    Fixed ...
    chernandezba chernandezba November 2019 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…

    ... release for free the ROM version of Mag the ... ]

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

    [img] ...
    radastan radastan November 2019 Brand new software
  • Dead Space - ROM version for download (free)You can download Dead Space ROM version, for Interface II, for free now: [url="http://www.bytemaniacos.com/?page_id=3437"]http://www.bytemaniacos.co…

    You can download Dead Space ROM version, for Interface II, for ...
    radastan radastan April 2020 Brand new software
  • TAP files for DivIDE/DivMMCSeveral .TAP files of Spectrum games circulating on the Web won't work with a DivIDE/DivMMC interface. Most of the times this is due to the fact that…

    ... loaded without calling the standard ROM loading routine, or with the ... , hacking loading routines so that they use the standard ROM calls, or ...
    Alessandro Grussu Alessandro Grussu April 2020 Games
  • looking for a "html5+js"-based zx-spectrum emulator with webmsx/javatari featuresperhaps some of you figured out how neat was this feature from webmsx and javatari (both great html5+js emulators, developed from Paulo Peccin - @ppe…

    ...
    http://javatari.org/?ROM=https://atariage.com/2600/roms ... br /> https://webmsx.org/?ROM=http://nitrofurano.altervista.org/retrocoding ... /msx/roms/xbill.rom
    https://webmsx. ... only via url from the official emulator website, just like ...
    nitrofurano nitrofurano April 2020 Emulators
  • edge connector... breadboard / external romso i purchased a breadboard on a edge connector.. to experiment with .. my first task to make a external rom boot (32k eeprom) so i think i got every…

    ... task to make a external rom boot (32k eeprom) so ... to romcs to disable onboard rom : using a 74hc32n as ... rd to pin 20 of rom (to make sure they are ... a bank selector (the rom file was burn on both ... of the actual rom (which was a diagnostic rom).. so my thoughts ...
    mark8bit mark8bit October 2020 Hardware
  • Electronic listings from Spectrum Shadow ROM Disassembly?I've been reading [url="https://spectrumcomputing.co.uk/index.php?cat=96&id=2000371"]Gianluca Carri's Spectrum Shadow ROM Disassembly[/url] book (Wor…

    ... "]Gianluca Carri's Spectrum Shadow ROM Disassembly[/url] book (World of ...
    JamesYoungman JamesYoungman December 2020 Development
  • Microdigital TK95 / TK90X - my experiencesAs asked for by Renegade [url="https://worldofspectrum.org/forums/discussion/58189"]here[/url] I'll do a short writeup of my experiences with my TK90…

    ... demos and ran the diagnostics ROM by Brendan Alford. Crapbert Buttslut ... possibly due to the beeper routines?
    Fun fact: BASIC error ... and compatibility then (the newer ROM in the TK95 supposedly is ...
    Shockwav3 Shockwav3 February 2021 Hardware
  • Killed Until Dead - Spectrum 128K versionI first got hold of this game about the same time as the film "Clue" started being shown on TV, and there was a "Miss Marple" series on TV, followed …

    ... with the ROM one (which is close enough), copy some routines from ...
    Ritchie333 Ritchie333 August 2021 Assembler
  • Multiface 3 hacked rom?Hi, I need to transfer some games on the +3 disk drive using my MF3. I know you need to have the MF3 pluged in in order to load the games afterwa…

    ... some kind of "hacked" MF3 rom that has this lock removed ...
    gtsamour gtsamour September 2021 Hardware
  • pixel exact printingis there a way of doing this in basic? or by copying / modifying the rom code or using a completely new routine? so that print at x,x works more like…

    ... ? or by copying / modifying the rom code or using a completely ... this program from the spectrum routines compendium but it makes the ...
    digital digital December 2021 Development
  • AGD 5 Sneak PreviewLet's be honest, AGD 4 was first released in 2013 and is long overdue an overhaul. Many users have migrated to the far superior MPAGD but not everyo…

    ... rewriting those awful keyboard routines in the Sinclair ROM. No more "gardening ... write their own fast display routines using a combination of 8 ...
    jonathan jonathan June 2022 Announcements
  • NMI Routine and Restarts in a new 128K ROMI'm presently engaged in creating AGD 5 with the intention of making it a pair of 16K ROMs for the 128K/+2. I'm fairly sure that the vast majority o…

    ... 't supported in the original ROM 0 as the delay routine ...
    jonathan jonathan July 2022 Hardware
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Latest Posts

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  • European Software Titles with an English version
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    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21

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  • +3 rom disk load/save routines?I`ve been looking everywhere for some documented listing of the +3 rom load/save routines.<br /> <br /> I want to convert some games to use disk inst…
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  • 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…
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