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  • 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
  • Spectrum and Z80 emulators with Python APIHello everybody, It may be the right time to create a topic for these two emulators. They are not at the initial release point yet, but might be w…

    ... counting T-states for specific routines and automatic code generation and ... of, but without changing the library code.

    What is ...
    kosarev kosarev May 2019 Emulators
  • 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
  • ZEsarUX 8.1 stableHi! I've uploaded a new ZEsarUX 8.1 stable version. Go to the github released webpage to download it: https://github.com/chernandezba/zesaru…

    ...
    -optimized ula,lores render routines: 2% less cpu
    -added ... bug loading .sna files when rom 1 paged in
    Fixed ...
    -fixed error when paging rom in ram, on case pages ...
    chernandezba chernandezba February 2020 Emulators
  • 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
  • New Utility ZXSTLC[b]New Utility ZX Spectrum Tape (& Disk) Loader Creator[/b] I made this utility to easily create tape and +3 disk loaders for my projects and have…

    ... banks, while using the ROM loading routines to maintain compatibility with the ...
    TomD TomD August 2020 Brand new software
  • 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
  • Hardware Reference Manual for ZX SpectrumHi, I want to write games for ZX Spectrum in assembly language. I have lot of books in PDF format from SpectrumComputing. Still missing a book lik…

    ...
    Devices (TAPE)
    ROM system calls library
    System structure environment ...
    Tymo6666 Tymo6666 October 2022 Development
  • How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…

    ... "look" in to the Spectrum ROM to see wot it holds ... are lots of interesting routines inside the ROM that one could have ...
    Arjun Arjun February 2002 Games
  • Best way to codeHi, I've been using Zeus Assembler to code MC programs so far. Nothing fancy just the odd scroll left or animation stuff. Wot I'd like to know is, …

    ... it produces a big runtime Library (To be honest, you will ... it has some excellent graphic routines.
    Interupt is not so ...
    LCD LCD August 2001 Sinclair Miscellaneous
  • Hook CodesIf you've dug into the Interface 1 this should be an easy question. I last had 'em circa 1990 while I can remember the things they did Start Motor C…

    ... best to obtain from a library or auction house a book ... the development on the first ROM, Dr Andrew Pennell assisted in ... Code, it's name, shadow ROM location and
    function.
    ROM routine addressed.
    33 SCAN_M ...
    Geoff Geoff February 2001 Sinclair Miscellaneous
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