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  • Raspberry PI - TXZDuino / ZX-HD – HDMI(sorry, I originally popped this in the wrong hardware section!); So I was wondering... 1 The ZXBaremulator is able to take the sound of the e…

    ... through the HDMI, however the ZX-HD HDMI interface doesn't ... same thing.

    3 The ZX-HD HDMI has a Raspberry ... device that encompassed three devices: ZX HD-HDMI (the one with ...
    Korinel Korinel February 2022 Hardware
  • ZX Spectrum Next - System/Next Firmware NextZXOS Recommended VersionsI´m doing a thread "ZX Spectrum Next - System/Next Firmware NextZXOS Recommended Versions" at: [url]https://forum.tlienhard.com/phpBB3/viewtopic.php?…

    ... /> Snapshot from today:
    [quote]ZX Spectrum Next - Distro System/Next ... /> System/Next v-.-.- (=Core v. 3.01.10, Firmware 1.31 ... Next-Distribution: System/Next v1.3.2
    Download SD-Card ... Next-Distro: System/Next v1.3.2
    ZEsarUX bietet eine ...
    Luzie Luzie March 2022 Hardware
  • 2022-09-07: System/Next 22.09 (=Core 3.01.10, FW 1.43 and NextZXOS 2.07k) releasedSo it´s software, but I´ll post it here for the Hardware Spectrum Next: 2022-09-07: System/Next 22.09 (=Core 3.01.10, FW 1.43 and NextZXOS 2.07k i…

    ... : System/Next 22.09 (=Core 3.01.10, FW 1.43 ... have to update my list " ZX Spectrum Next - System/Next Firmware ... .specnext.com/latestdistro
    Core 3.01.10, FW 1.43 ...
    Luzie Luzie September 2022 Hardware
  • Art Studio for +3Probably not of much use these days, but anyway: I revised and updated the +3 program code for the Art Studio +3 version, with the main difference th…

    ... : I revised and updated the +3 program code for the Art ... Studio +3 version, with the main difference ... and somehow transferred to a +3 disk.

    More info ... ://www.secarica.ro/index.php/zx-zone/plus3-software/art-studio ...
    secarica secarica October 2022 Updates
  • 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 …

    ... some ideas:

    ZX-Me
    =====


    1FFD - extended +3 paging

    D0... ... uncontended RAM pages 0-3
    When Spectrum ... VRAM is used as Spectrum contended memory.
    D1 - ...
    cyborg cyborg October 2002 Sinclair Miscellaneous
  • Emulating the SamRAM on the ZX Spectrum SEGerton Lunter gave me permission to reuse the code, but so far I have not been able to get the software to work in paged RAM banks.

    ... be quite small. ZX Spectrum SE/ZX Spectrum +3/Pentagon/Scorpion.
    3 if I wanted to watch ... the same clock speed (3.5Mhz). And the Pentagon ... brew machine, which has no contended memory. The SE is ... the 48/128+/+2/+2A/+3.

    And ...
    lordcoxis lordcoxis October 2005 Emulators
  • Method to read byte as binary string rather than dec?Hi all Am fiddling around with the screen buffer and have written a routine to scan the screenbuffer into upper ram and then write it back in upside…

    ... second.
    [/quote]
    The ZX has approx 70000 T-States ... copy a 2048b buffer (1/3 of the screen) using a ... account the delays caused by contended memory.
    But that's ...
    icabod icabod February 2006 Sinclair Basic
  • RealSpec start upI understand that you can add a start-up line to initiate the version, mode,interface etc; for RealSpectrum but I'm a complete ham with emulators, a…

    ... (C) 1999-2005 Ramsoft ZX Spectrum demogroup.
    CPU ... 1-2) : load diskfile into +3 drive
    -mb02, -d80 ... emulation
    -fastmem : disable contended memory emulation
    -nopause : ...
    icabod icabod March 2006 Emulators
  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    [QUOTE=piters;175876]Contended memory is not only by ... />
    If DMA access to contended memory, ULA stopped clock for ... , thus DMA wait. On ZX 128+2A/+3
    ula generate WAIT ...
    velesoft velesoft March 2007 Hardware
  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    ... ;175908]If DMA access to contended memory, ULA stopped clock for ... , thus DMA wait. On ZX 128+2A/+3
    ula generate WAIT ... example of DMA transfer with contended memory. DMA read and write ...
    velesoft velesoft March 2007 Hardware
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... current encodings and loaders for ZX Spectrum. Please look below ... /> Mikropol - Comal, STP (uses 3 different pulses to encode 2 ... /> Kraplock2 - Woodys loader
    Contended Loader - Woodys loader again, needs ... to release A LOT of ZX Spectrum Tapes which we ...
    Tom-Cat Tom-Cat May 2007 Emulators
  • Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…

    ... ALL of the current known ZX Spectrum loaders, and I ... alphabet

    Kraplock2 - 3 char alphabet, RLE compression (if ... char alphabet

    Contended Loader - 256 char alphabet, A ... GDB.

    Mikropol - 3 char alphabet

    ZetaLoad3 ...
    Tom-Cat Tom-Cat May 2007 Emulators
  • Compatible SpectrumsFollowing some recent coding exploits I've been thinking about compatibility of various models of ZX Spectrum. Yes, it's a common question on the for…

    ... compatibility of various models of ZX Spectrum. Yes, it' ... compatibility of various models of ZX, with some people (well ... 2a/+3 had different pages of contended RAM (I think 1, 3, ... cause the modded +2a/+3 to be less compatible ... The +2A and +3 ULA does not stop CPU ...
    ingo ingo October 2007 Hardware
  • FPGA Spectrum is aliveMy FPGA Spectrum that I started to work on year ago is in 90% ready. I have fixed DDR controller so I can read from it and write to it. I've run som…

    ... available on opencores.org.
    3. All glue logic and ULA ... used.
    5. As 16k contended RAM an embedded memory is ... to be implemented as normal zx spectrum vertical resolution (and as ...
    brian-82 brian-82 November 2007 Development
  • MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…

    ... 7FFD = % xxxxxxx1)
    Russian ZX clones don't snow, and ... to this slow(contended) memory.(BLACK RAVEN, IMPERIA 3, HEXAGON 2 ... (new vector table in ZX rom) and copy 2b ... original vector table(in ZX ram) to new table ... fix snow effect on all ZX models.

    ...
    velesoft velesoft April 2008 Development
  • IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…

    ... works on the +2a or +3, and i didnt dig too ... longer/shorter due to different contended ram banks on newer/older ... looks a litle funny)
    ZX-Stag (18 Certificate)

    nuggetreggae nuggetreggae April 2010 Development
  • Flicker fixer for ZX 48KHas anyone the schematics for the flicker fixer: [URL]http://8bit.yarek.pl/computer/zx.48/[/URL] Micky

    This is "flicker fixer" for ZX Spectrum 128 or +2(grey ... /> [url]http://velesoft.speccy.cz/zx/umbrella/umbrella.htm[/url]
    contended ports adress (OUT/IN instructions ... fast as on ZX128+2A/+3). Both features is implemented also ...
    velesoft velesoft April 2010 Hardware
  • IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…

    ... . This is such a milestone ZX spectrum demo. Now that we ... (well original 128 and +2/+3 ;-) ).
    [/QUOTE]

    Unfortunately ... done on a machine with contended screen memory (it requires too ...
    gasman gasman April 2010 Development
  • Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…

    ... /technical-docs/ZXSpectrum128K_TechnicalManual.pdf"]ZX Spectrum 128K Technical Manual[/ ... 2
    Pages 0-3 are uncontended and are accessed ... /> Pages 4-7 are contended in that the Z80 and ... sinclair/books/ZXSpectrum+2Manual.pdf"]ZX Spectrum +2 Manual[/URL], ...
    ajmoss ajmoss April 2010 Hardware
  • Cant DecideI have had a lot of spectrums in my time from the 16k to the +3 and as we all know they all have flaws. I am thinking about buying another and wanted…

    ... using the ROMs from the ZX Spectrum SE (included with Fuse ... use two copies of the ZX Spectrum SE ROMs. Due to ... games are written for the contended RAM of the +2A and ... +3, not the 128 or +2. ...
    chev chev July 2010 Hardware
  • c.s.s. Sinclair FAQ domains recoveredAfter the original registrant of the [URL="http://www.sinclairfaq.org/"]sinclairfaq.org[/URL] and [URL="http://www.sinclairfaq.net"]sinclairfaq.net[/…

    ... scratchpad.wikia.com/wiki/Contended_memory]Contended memory[/url]" article on the ... scratchpad.wikia.com/wiki/ZX_Spectrum_technical_information]ZX Spectrum technical information wiki[/url ... creativecommons.org/licenses/by-sa/3.0/]Creative Commons Attribution- ...
    Philip Kendall Philip Kendall October 2010 Sinclair Miscellaneous
  • What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3

    ... [url]http://velesoft.speccy.cz/zx/umbrella/umbrella.htm[/url]
    ZX ignore reading and return floating ... original PAL10H8/HAL10H8 chip in ZX Spectrum 128/+2(grey).< ... 2A/+3)
    - I/O operations are accelerated/fast/not contended (fast ...
    velesoft velesoft December 2010 Hardware
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... differetiating a genuine non-modded ZX Spectrum 48K from anything else ... 7..0] = 11-12h R=3
    jp nz,Sigue ;A ... bus cycle to refresh non contended memory, but all and every ... memory, and hence, a true ZX Spectrum 48K.

    ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • 128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…

    ... /PHICPU pulses aren't contended and last four /PHICPU ... pulses can be contended. The fifth a the ... sixth possibly contended pulses are missing. The ... completely understand to all ZX Spectrum computers. You have ... 128 or ULA +3 or ULA in ZX Interface 1. ...
    vranik vranik July 2011 Hardware
  • Strange behaviour in real hardware but not in emulatorsWell, at least not in any emulator I've tried. I've been reported by fellow forum member Macc that both our Maritrini Monster Slayer and Retroworks'…

    ... ZX48/128/+2/+3). This ZX models contain HW ... to this slow (contended) memory, ZX is very unstable and ... in screen raining effect. ZX will crash. This ... /> hexagon 2
    imperia 3
    jackals
    netwalk ... 2
    wolf demo 3
    sparrows
    deathmatch ...
    mcleod_ideafix mcleod_ideafix March 2012 Emulators
  • Issue 3B only sees 16k (and RAMTOP NO GOOD on loading)A ZX+ with issue 3B board that i got recently, does not see anything more than 32768 (sometimes 37267..) on "PRINT PEEK 23732 + PEEK 23733 * 256 (Ent…

    [QUOTE=Asure;610297]A ZX+ with issue 3B board that ... every address in top (non contended) RAM.

    Do a ... able to use the same 3-pole DIN connector that are ...
    mcleod_ideafix mcleod_ideafix March 2012 Hardware
  • ULA snowHow is this feature implemented in emulators ? And how exact is the emulation ? I somehow supposed that ULA snow is something that is not very determ…

    ... "I" can never point to contended areas, even when interrupt is ... and a contended RAM page is paged in (1, 3, 5 and ... games use RAM 1 and 3. So I'm guessing most ... emulators worked flawlessly (even specemu/ZX Spin with ULA snow on).
    na_th_an na_th_an March 2012 Emulators
  • Wolfenstein / Doom for 48k SpectrumHi, is there any game / demo of this kind that runs on 48k machines? Thanks.

    ... 've also made the IDEDOS / +3 disk version which includes a ...
    nuggetreggae nuggetreggae October 2012 Games
<1…14151617181920…34>

Latest Posts

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