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  • ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…

    ... some syscall to call zx rom and he replied me, that ... address of routine in zx rom.

    i have no ... code in the 128 editor ROM is fully disassembled and documented ... lift the code directly, copyright issues notwithstanding.[/QUOTE]
    yes, for ...
    ub880d ub880d July 2012 Announcements
  • Trivial Pursuit Question Packs RevisitedHi folks, As we're getting stuck into loaders and getting some nice TZXs out of them, I stumbled across an old thread in addition to an infoseek sea…

    ... these results still exhibit some issues:
    Side A seems OK ... the stack and loading over ROM. At the end, the return ... lost and it jumps to ROM, getting lost in the process ...
    lfaria lfaria July 2012 MIA/STP/SDP
  • 80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…

    ... custom cart with a custom ROM in the first 16K and ... cartridge port and the 8K ROM and replace the Timex 16K ... BASIC by loading the old ROM images in RAM.

    issues (Elite, etc.).
    [quote]Timex ...
    chev chev August 2012 Sinclair Basic
  • 80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…

    ... patched to deal with compatiblity issues (Elite, etc.).[/QUOTE]
    Funny ... most people "discard" 128 basic ROM... and prefer to use it ...
    Encarnado Encarnado August 2012 Sinclair Basic
  • The need of having a 257-byte table for IM2 routinesThis came from a discussion at the speccy.org forum. I have understood that the reason behind the 257-table for IM 2 routines is due to certain joys…

    There was always that trick of pointing at the long run of FF bytes in the original 48K ROM and using that as a table instead (along with a JP - or was it JR - at 65535) to save room, but of course that caused compatibility issues of its own.
    Ant Ant August 2012 Development
  • The need of having a 257-byte table for IM2 routinesThis came from a discussion at the speccy.org forum. I have understood that the reason behind the 257-table for IM 2 routines is due to certain joys…

    ... bytes in the original 48K ROM and using that as a ... of course that caused compatibility issues of its own.[/QUOTE]
    chev chev August 2012 Development
  • White Spectrum+Hi Folks, There is a photo of a white Spectrum+ on Rick Dickinson's website - did this actually exist i.e. working machine? Paddy

    ... was dumbed down, and the ROM was crippled. 128 BASIC was ... bugs in the 48 BASIC ROM were fixed, even though the ... built-in Microdrive (and the issues you list above fixed) it ...
    Paddy Coleman Paddy Coleman August 2012 Sinclair Miscellaneous
  • Spectrum 128 toaster and divide incompatibility problems with some demos and games.Okay so I got this thing now. It?s my first Spectrum ever. [img]http://img836.imageshack.us/img836/2016/speccyl.jpg[/img] [url]http://img824.image…

    ... have a workaround for your issues, but basically you bought a ... . wiil run)
    * merge the ROM/CS lines on the edge ... anything that checksums the 48 ROM or needs the 257 byte ...
    chev chev August 2012 Sinclair Miscellaneous
  • Spectrumpedia - the Spectrum encyclopedia.Dear fellow Spec-chums, it is with great pride that I present you the result of an intense work of research I have been carrying out lately. It is …

    ... other due to book paging issues).
    [QUOTE=mcleod_ideafix;648824]Pag ... 's the only ZX Spectrum ROM which is not copyrighted by ...
    Alessandro Grussu Alessandro Grussu August 2012 Announcements
  • New ZX Spectrum emulator for Jupiter AceProject page (sorry in Spanish) [url]http://retrolandia.net/foro/showthread.php?tid=36[/url] Try it in a Jupiter Ace emulator [url]http://jupiler.re…

    [QUOTE=zxbruno;652237]The issues that Andrew raised are important ... /busra.zip"]Better Uncommented Spectrum ROM Assembly[/URL] for version 2 ...
    chev chev September 2012 Emulators
  • Everdrive 64 (N64 backup device)Since I can't get N64 emulation to work right (unlike every other machine I try to emulate, why is N64 emulation still so riddled with incompatibilit…

    ... do have a (reasonably) full ROM set that I use with ... [/B] has alot of graphical issues, [B]Donkey Kong 64[/B ... ] has [I]serious[/I] graphics issues as does [b]Resident Evil ...
    Bermondsey Bob Bermondsey Bob October 2012 Chit chat
  • 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…

    ... and H jumpers) at the ROM chip.
    But, according to ... pin is connected to the ROM chip. This resulted in strange ... tests showed I have some issues with timmings. To be concrete ...
    mcleod_ideafix mcleod_ideafix November 2012 Hardware
  • IX register woes - or is SPIN buggy?Or am I missing something? I'm trying to use the IX reg to acess a table containing an x and y coord. My code below just doesnt seem to work proper…

    ... although the assembler has its issues, I'm not aware of ... service routine, ZX BASIC, various ROM routines etc. or whatever. This ...
    Marko Marko November 2012 Development
  • IX register woes - or is SPIN buggy?Or am I missing something? I'm trying to use the IX reg to acess a table containing an x and y coord. My code below just doesnt seem to work proper…

    ... although the assembler has its issues, I'm not aware of ... service routine, ZX BASIC, various ROM routines etc. or whatever. This ...
    polomint polomint November 2012 Development
  • IX register woes - or is SPIN buggy?Or am I missing something? I'm trying to use the IX reg to acess a table containing an x and y coord. My code below just doesnt seem to work proper…

    ... service routine, ZX BASIC, various ROM routines etc. or whatever. [/QUOTE ... from scratch without any major issues so ner ner to its ...
    Morkin Morkin November 2012 Development
  • Code execution logging/profilingAs revealed in [url="http://www.worldofspectrum.org/forums/showthread.php?t=41666"]this thread[/url], I'm adding support for reading code execution l…

    ... (just 8K if you include ROM) to disk. This gives the ... " files useful for diagnosing emulator issues but as an aid to ...
    Korinel Korinel November 2012 Emulators
  • Fuse for PiAs I dont have a Pi just yet but will in the new year I am planning on making my very own "ZX Spectrum 2012" machine using the Pi What I wanted to k…

    ... it gets fullspeed emulation without issues at 600MHz, which should be ... uses flashload for TAP file ROM loaders, and edge detection elsewhere ...
    Dunny Dunny December 2012 Emulators
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... , then must contain real Z80CPU,rom chip, ram chip, ula in ... emulation when there are incompatibility issues, compared to real hardware.
    bverstee bverstee December 2012 Hardware
  • Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…

    ... the TAP file instead (ordinary ROM loader).
    [*]Elite 48K: System ... be distributed due to copyright issues.
    [*]Tau Ceti Special Edition ...
    Alessandro Grussu Alessandro Grussu December 2012 Games
  • DivIDE on +3Hi guys! I need some help with my DivIDE interface. It?s a standard DivIDE from Ebay, no Plus. It works quite well, but actually I have three proble…

    ... you start with the standard ROM rather than the 128K BASIC ... will work fine (modulo compatibility issues that the +3 has with ...
    Winston Winston December 2012 Hardware
  • Psion 5 Spectrum Emulator probsI picked up a second hand Psion 5MX as I have gotten the text adventuring bug once more. I installed the Sinclair Spectrum Emulator version 4.0 by Pa…

    ... range. Try running on 128k ROM'. Trying to load Game Over ... lot and never encountered any issues when loading, saving or running ...
    yadster yadster December 2012 Emulators
  • Psion 5 Spectrum Emulator probsI picked up a second hand Psion 5MX as I have gotten the text adventuring bug once more. I installed the Sinclair Spectrum Emulator version 4.0 by Pa…

    ... range. Try running on 128k ROM'. Trying to load Game Over ... lot and never encountered any issues when loading, saving or running ...
    snigfarp snigfarp December 2012 Emulators
  • Spectranet updateHi all It's been a busy summer, and in any case I've wanted a little bit of a break from doing Speccy stuff to avoid it getting old (pun intended). …

    ... it doesn't have a ROM and the ports don't ... can end up causing stability issues even if in theory the ...
    Winston Winston December 2012 Hardware
  • SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]

    ... ]does it offer any other rom area ram modes please [/QUOTE ... dirty and susceptible to fanout issues.

    I'm not ...
    BloodBaz BloodBaz January 2013 Sinclair Miscellaneous
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... had the NEC D23128C 057 rom soldered on them.

    rom) and I'm talking more ... 20 machines and of different issues and kind. All of them ...
    gtsamour gtsamour January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... had the NEC D23128C 057 rom soldered on them.

    rom) and I'm talking more ... 20 machines and of different issues and kind. All of them ... on any machine with NEC rom together with my 57c's ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... = faster disabling internal ZX rom = ZX rom have longer time for disconnection ... of Mutant Caterpillar has had issues with some of these recently ... with some modifications use ZX48 rom and divide system in one ... Spectrum owners with a NEC rom that want to install ...
    bverstee bverstee January 2013 Hardware
  • Spectrum +2A vs the Spanish oneThere must be some information out there, but I don?t seem to be able to find it. I just received a Spanish +2A and I wonder what differences the tw…

    ... ROMs? Velesoft mentioned some compatibility issues with the DivIDE, but this ... mainly due to the different ROM, I reckon? Any other differences ... only difference will be the ROM and the labelling but then ...
    guesser guesser January 2013 Hardware
  • Difference between brands of 4164 chips?I have gotten my hands on a batch of several brands of 4164 chips. Examples are NEC D4164C-3 and Mitsubishi M5K4164ANP-15. Anyone knows if any type …

    ... 4116's multiple power supply issues. Add a few years of ... RAM". Not that RAM or ROM will ever be a big ...
    RetroTechie RetroTechie February 2013 Hardware
  • 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…

    ... url]

    The rom is a 28C64, a 8kx8 ... tracks, A13 to the rom is indeed connected to pin ... disciple would have different rom and different pal's ... . We will need the rom compatible with the 128K and ... information at all on older issues of the DISCiPLE... I' ...
    zub zub February 2013 Hardware
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Latest Posts

  • Minor British Sports that did become games on the ZX Spectrum
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    harriusherbartio on April 22
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on April 22
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