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Search Again :: Adv Search 1000 results in 0.029s
<1…18192021222324…34>
  • Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …

    ... problem with the pixel address rom routine at 8874.

    Going by the ZXSpectrum Rom Dissassembly book, I'm trying ...
    Tobo Tobo September 2015 Development
  • Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …

    ... missing , the video modulator ripped out , the ULA and ROM missing as ...
    harriusherbartio harriusherbartio September 2015 Hardware
  • The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…

    ... Custom ROM in ROM-A
    DRAM in ROM-B with ... />
    --------------------------
    ROM and RAM in More Detail ...
    --------------------------
    ROM:

    ROM0 - ... /> You can find a video showing this version on YouTube ...
    bverstee bverstee October 2015 Hardware
  • No colour - Issue 2 SpectrumThis one is driving me mad - any suggestions appreciated. I have an issue 2 Spectrum with no colour at all. I found the 12v rail was at just over …

    ... only other semiconductors in the video circuit were a couple of ... faulty but still allow monochrome video, but changed them anyway - again ... can look other than the video circuits? The board traces all ... about right - I haven't removed them to test exactly, but ...
    Graham Graham October 2015 Hardware
  • SINCLAIR ZX80 + 16K ORIGINAL EXPANSION ROM!!!http://www.ebay.co.uk/itm/-/171965470419? Here you are my ZX80 in perfect working condition. It was upgraded in 1981 with the new rom and keybo…

    ... in 1981 with the new rom and keyboard.

    It ...
    ranma_simon ranma_simon October 2015 Sales
  • I recapped my 128K toastrack, installed stereo kit and detached audio from video, but...Hello fellow forumers! I'm seeking for help: I've finally decided to change all electrolytic capacitors of my 6U (with all Panasonics 105oC)... Af…

    ... . Then I detached audio from video signal by lifting the right ... snow). This means that every video output is affected! Spectrum was ...
    geosiou geosiou October 2015 Hardware
  • 128K Toast Rack / +2 Grey Bug Fixed english ROM ?Just spotted this on ebay before ending: http://www.ebay.com/itm/1x-Sinclair-ZX-Spectrum-128K-Toast-Rack-2-Grey-Bug-Fixed-english-ROM-/26206065205…

    ... -2-Grey-Bug-Fixed-english-ROM-/262060652057?hash=item3d04083619:g:i ... to place a 128k Toastrack Rom on a grey +2? Any ... , a grey +2 with that ROM would become the most compatible ...
    Renegade Renegade October 2015 Hardware
  • Video Problem - Spectrum 48kYet again I come seeking help.... Can anyone point me in the direction of anything that explains the video generation circuit on the Spectrum? I'v…

    ... of anything that explains the video generation circuit on the Spectrum ... find any information on the video circuitry to give me a ...
    Graham Graham November 2015 Hardware
  • Scary video clipI found [url="https://www.youtube.com/watch?v=04rDK7zY7_Y"]this[/url] video on YouTube. It is really scary, but otherwise of great educational value …

    ... /watch?v=04rDK7zY7_Y"]this[/url] video on YouTube. It is really ...
    Dan Antohi Dan Antohi November 2015 Hardware
  • video quality issue on 48k machine after composite modHello! I just bought an 48k spectrum and did the composite mod. Unfortunately it did not end up as good as i hoped for. The screen after reset looks …

    ... the flickering horizontal stripes (see video, though it is barely visible ...
    holovicc holovicc November 2015 Hardware
  • velleman k8036 - Video signal cleaning?http://www.velleman.eu/products/view/?country=es&lang=en&id=348080 Although velleman reports having discontinued this kit and its primary use was …

    ... it also works for "normal" video cleaning.

    Once it ... possible to perform the composite video/ s-video mod for the spectrum ... , I was wondering if some video quality uprate would result from ...
    Renegade Renegade November 2015 Hardware
  • Spectrum+ 128k ROM replacementHello, I want to change the stock ROM of my Spectrum+ 128k with an EPROM ([url="http://pdf.datasheetarchive.com/datasheetsmain/Datasheets-32/DSA-6…

    ... want to change the stock ROM of my Spectrum+ 128k with ...
    kwyjibo kwyjibo November 2015 Hardware
  • Power issues on a 6A 48 K SpectrumHello all! I decided to take another look at my 6A Spectrum that I broke via a bad joystick adapter, I’ve removed the bottom 16K ram and replaced…

    ... bad joystick adapter, I’ve removed the bottom 16K ram and ... . From following the “Initial Tests” video, it looks like I have ... .5 at 200 K, the video says 125 @ 400K and anything ...
    Korinel Korinel November 2015 Hardware
  • Kosmiczne Opowiadania (by Marek Biliński) music video feat. ZX Spectrumpsb in #z80 (Russian channel) pointed me at this wonderful video of Kosmiczne Opowiadania (Space Stories) by Marek Biliński: https://youtu.be/TtnZ…

    ... ) pointed me at this wonderful video of Kosmiczne Opowiadania (Space Stories ...
    zub zub November 2015 Chit chat
  • WANTED Machinecode Routine for Paging in Betadisk TR-DOS v5 ROMI try to build a small MCode-program which writes the TR-DOS-ROM v4 / v5 to RAM adress 40000 an up. It´s working on TR-DOS v4 / Betadisk 48k: C…

    ... which writes the TR-DOS-ROM v4 / v5 to ... #3C06 = 15366 dez = DOS / ROM ON
    ;TR-DOS v4 ... I compare the Bytes from ROM-Files, it seems with ... copies the standard Spectrum 48k ROM to adress 40000
    ... and NOT the Betadisk v5 ROM (because it´s not paged ...
    Luzie Luzie December 2015 Hardware
  • Post a funny videoTo change the tone and cheer us all up, I thought we could have a humourous video thread, as it's been ages since the last one. So post a video li…

    ... we could have a humourous video thread, as it's been ... .

    So post a video link to something you think ...
    ewgf ewgf December 2015 Chit chat
  • Harlequin Rev. G - Composite video problem.What I'm about to describe I'm not experiencing it by myself, so the probable answer to any "have you tested this or that" question is no, I don't, b…

    ... via RGB and via composite video on almost every TFT TV ... C= 1084S) just the composite video appears in B&W ...
    GroovyDrifter GroovyDrifter January 2016 Hardware
  • New "**** Game Time" Amiga video, Bad CatHi everyone, hope all is good so far in 2016 Very Happy Anyhowz, my new **** Game Time video is now live, this time It's Bad Cat I look at and I h…

    ... /> Anyhowz, my new **** Game Time video is now live, this time ...
    ZEUS ZEUS January 2016 Chit chat
  • New "**** Game Time" Amiga video, Street Fighter IIHi to all my subs and channel followers. A new "**** Game Time" video is now live on my channel, this time I ****-rate Street Fighter II on the Amig…

    ... .
    A new "**** Game Time" video is now live on my ...
    ZEUS ZEUS January 2016 Chit chat
  • Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …

    ... never stop generating a valid video signal, even if the pixels ... lower RAM and a different ROM (Hitachi branded, the original was ... normally occurs in a proper video signal. For example, I explicitly ... />
    I still think this video defect must be a fault ...
    Zorn Zorn February 2016 Hardware
  • 128 +2 grey, no video but still beepsGot a grey 128 from ebay, im using a 48k spectrum powers supply, all voltages seem ok. I cant get compostie video using the normal mod or from the 8…

    ... .
    I cant get compostie video using the normal mod or ... i correct in thinking rgb video will still work as it ...
    Level20 Level20 February 2016 Hardware
  • Thank You video all my viewers, subs and advice for newbies getting trolledHi all, this video is to say thank you to all my viewers, subs and all those who have gone out their way to contribute to my retro game channel in ma…

    Hi all, this video is to say thank you ...
    ZEUS ZEUS March 2016 Games
  • New version emulator ZEsarUX-4.0Hi I have uploaded a new version of my emulator ZEsarUX 4.0. You can download it from the project web page: http://sourceforge.net/projects/…

    ...
    Added Allow Write on ROM setting
    Added Turbo Setting ... with ULAplus, Timex or Spectra video modes. But not with scanlines ...
    chernandezba chernandezba March 2016 Emulators
  • I don't think I'm getting the $22AA Pixel-Add rom routineDear all, I'm misunderstanding how the PIXEL-ADD rom routine works. My code... [code]ld b,175 ld c,1 call $22AA ld (hl),a ret[/code] So…

    ... misunderstanding how the PIXEL-ADD rom routine works.

    My ... that, I'm assuming the rom routine at $22AA will convert ...
    Tobo Tobo March 2016 Development
  • New "let's play" video - Disposable Hero (Amiga)Hi guys and subs to my channel, just to announce my latest "let's play" video, this time I play and review the brilliant although sadly rather unotic…

    ... my latest "let's play" video, this time I play and ...
    ZEUS ZEUS March 2016 Chit chat
  • New debugger features for ZEsarUX-4.1Hi I haved added new breakpoint conditions on ZEsarUX, the following 8 allow to put a breakpoint when accessing memory or i/o ports: MRV: value…

    Hi

    I haved added new breakpoint conditions on ZEsarUX, the following 8 allow to put a breakpoint when accessing memory or i/o ports:

    MRV: value returned on read memory operation
    MWV: value written on write memory ...
    chernandezba chernandezba March 2016 Emulators
  • New Retro Virtual Machine v1.1.0Hello everyone, a new version of Retro Virtual Machine https://www.youtube.com/watch?v=vDXHnelI49A Change Log: Added the ZX Spectrum+ with s…

    ... the ZX Spectrum+ with spanish ROM.
    Added the first ... Added ‘screen curvature’ to the video options.
    Added the ‘vignette ... to the video options.
    Added new video presets with ... All the controls in the video configuration screen are unlocked ...
    jcgamestoy jcgamestoy March 2016 Emulators
  • Mastering Machine Code on your ZX Spectrum by Toni Baker - Chapter 17 Disassembling the ROMHi All, As promised I have posted the source code for the disassembler from Chapter 17 of Mastering Machine Code on your ZX Spectrum by Toni Baker…

    ... -baker-chapter-17-disassembling-the-rom/"]here[/url].

    Thanks ...
    dbolli dbolli March 2016 Development
  • No video from my Spectrum +3 hot chips!I still can't get to the bottom of my +3 giving no video. It powers up and both the power and disk drive lights are on solid. The disk drive won't ma…

    ... of my +3 giving no video. It powers up and both ...
    landorb landorb March 2016 Hardware
  • Spectrum 128 video issuesIf you can tolerate 30 seconds of awful generic music, have a glimpse in my video below. I have muy toastrack hooked on RGB and I have flicker and…

    ... , have a glimpse in my video below.

    I have ...
    Pyjamarama Pyjamarama March 2016 Hardware
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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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  • 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…
  • Video: Composite video mod on the ZX SpectrumThe video actually ended up being mostly about digging deep into into the image generation of the ZX Spectrum. Eventually I make the composite video …

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