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Search Again :: Adv Search 1000 results in 0.022s
<1…23242526272829…34>
  • Flat screen TVsHi What are Composite 48K Spectrums and +2s like on flat screen TVs ? Just about to go down this route so just wondered.

    ... the vsync (Chris Smith's ULA book explains the gory details ... both the Spectrum (composite 48K, RGB for a +3) and BBC ...
    BiNMaN BiNMaN November 2010 Hardware
  • Flat screen TVsHi What are Composite 48K Spectrums and +2s like on flat screen TVs ? Just about to go down this route so just wondered.

    ... the vsync (Chris Smith's ULA book explains the gory details ... both the Spectrum (composite 48K, RGB for a +3) and BBC ...
    Chris A Chris A November 2010 Hardware
  • What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…

    ... " sound and picture get the RGB cable, but to get the ... , IMO. Personally I rate the + over the rubber key version, at ...
    Alien 8 Alien 8 November 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... feedback, general discussion and banter over the past two weeks that ... would like to see the ULA plus and a few other ...
    Rebelstar Rebelstar December 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... like to try is a ULA+ on the expansion port. ... substitute for a broken/missing ULA - it'll still need ... "out of production" stuff (ULA, AY) in a single FPGA ... network based FS)
    * RGB out (for SCART) and VGA ... Altwasser may have finished the ULA in 6 weeks, there ...
    Winston Winston December 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... t get better than an RGB output for a TV ... to VGA, and the RGB etc can be done from ... about not needing more than RGB... and I'm happy with ... to use.
    [*] Replace ULA with a modern CPLD or ... cheaper than original, decades old ULA).
    [*] Add a Flash ...
    RetroTechie RetroTechie December 2010 Hardware
  • How to connect a ZX Spectrum to a QL (RGB) monitorI recently acquired a pretty nice (old) original QL Vision color monitor. It works GREAT with the QL and the ZX 128K. The normal ZX Spectrum however,…

    ... in YUV, rather than RGB. There is no way ... of getting to the RGB signal on the board ... signal comes out of the ULA like that.

    RGB board and wire it ... better still straight off the ULA.

    Google ... for YUV to RGB conversion.
    IN31 IN31 January 2011 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... various quotes I have seen over the years from the C64 ... interpret the two bytes the ULA fetches to display 8 pixels ...
    Alcoholics Anonymous Alcoholics Anonymous January 2011 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... Spectrum-48 was ?175. ULA wholesale price was only five ...
    The price per ULA is only a very small ... associated with designing a ULA since it didn't ... fairly complex beasts). The ULA technology of the day wasn ... don't save anything over buying the Astec SMPS ...
    Winston Winston January 2011 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... /> (Ferranti engineer involvement in the ULA)

    Doubt this. Otherwise ... not like you just turned over the IC equivalent of a ... actual total cost of a ULA (total engineering costs + marginal ... fraction of what a Ferranti ULA wants!

    The ...
    Winston Winston January 2011 Hardware
  • Where's it all going?[Rerouted from 'Assembler Intricacies' in Development Forum] [QUOTE=Timmy;506104]I don't think we're in disagreement here. As I've said it's a niche…

    ... technically it Jimmy Riddles all over them! I've been trying ... Spectrum has had since then, ULA breakdowns, Quad Core PCs with ...
    Turkwel Turkwel January 2011 Sinclair Miscellaneous
  • Where's it all going?[Rerouted from 'Assembler Intricacies' in Development Forum] [QUOTE=Timmy;506104]I don't think we're in disagreement here. As I've said it's a niche…

    ... technically it Jimmy Riddles all over them!
    [/quote]

    ULA breakdowns, Quad Core PCs with ... die from lack of interest over time.

    What the ...
    Alcoholics Anonymous Alcoholics Anonymous January 2011 Sinclair Miscellaneous
  • Where's it all going?[Rerouted from 'Assembler Intricacies' in Development Forum] [QUOTE=Timmy;506104]I don't think we're in disagreement here. As I've said it's a niche…

    ... you will see flicker all over the place :D

    ula. Whether it ever gets done ...
    Alcoholics Anonymous Alcoholics Anonymous January 2011 Sinclair Miscellaneous
  • Was the +3 a missed opportunity?I just wanted to gauge WOS opinion on this. Do people think that the +3 was a bit of disappointment that didn't really advance the hardware as much a…

    ... ASIC was compared to the ULA+discrete logic was, but i ... /> A bit of extra time over +3 Basic. Especially so you ... prefer the ease of +3DOS over the old Microdrive style Ramdisk ...
    spodula spodula January 2011 Hardware
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... would be particularly helpful, the ULA can only read from RAM ... so fast[/QUOTE]
    ULA timings would remain absolutely the ... the spectrum screen is well over 80 cycles without the lookup ...
    TVzombie TVzombie February 2011 Sinclair Basic
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... Spectrum owners) would prefer speed over a higher resolution.[/QUOTE]
    This means that the ULA just have to...[/QUOTE]
    ULA :p
    TVzombie TVzombie February 2011 Sinclair Basic
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... six weeks to develop the ULA.

    If you ... you'll find that the ULA design really is a work ... AND fit in a 5C ULA with everything else that had ... to fit inside the ULA, AND met the design brief ... they could take their time over it. "Standing on the ...
    Winston Winston February 2011 Sinclair Basic
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... six weeks to develop the ULA.[/QUOTE]
    Such excuses ... fit in a 5C ULA with everything else that ... had to fit inside the ULA[/QUOTE]
    Any alternative ... they could take their time over it. "Standing on the ... then it's specific ULA content he made, but ...
    TVzombie TVzombie February 2011 Sinclair Basic
  • Elite to relaunch Spectrum - Daily Telegraph...Link below: [url]http://www.telegraph.co.uk/technology/video-games/8304237/ZX-Spectrum-relaunch-gaming-goes-back-to-the-future.html[/url] Another r…

    ... be a 15 kHz machine - RGB obviously - completely retro. It would ... get. It would have new ULA with new graphics mode for ...
    maiki maiki February 2011 Games
  • Newbie question about my unwell Spectrum...Hi - I have had a couple of dud 48K Issue 3 Spectrums in the loft for 20 years or more. One would initialise sometimes but could not be guaranteed t…

    ... . With some trepidation I put ULA from the working Spectrum into ... . I then put the sick ULA into the working Spectrum and ... is more than a sick ULA here.

    Certainly two ... .

    My broadband fell over on Monday morning (someone pulled ...
    weathereye weathereye February 2011 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... contain an original Ferranti-built ULA", which pretty much precludes anyone ... Heart Stealer with it connected over composite video, and the cross ...
    gasman gasman February 2011 Hardware
  • Zetr0's Catchup Time (hardware / software)Hello there my fellow ZX'ers I have been soaking myself into the "world of spectrum" and more I do, the more I realize I have to play catchup.... a …

    ... important article about Zx Spectrum ULA Contented memory behaviour (for extreme ... modes, the only real improvement over old techniques was the mescaline ... demo. Better stick with standard ula modes and be happy I ...
    Arda Arda March 2011 Development
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... / guide together for all the RGB outputing spectrum families - [URL="http ... ... shame that document is way over my head. :D

    Mousey Mousey March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ah, of course the toastrack has a ULA, it's a YUV output, not RGB.

    so the board would be for the +3 and either type of +2

    I guess the toastrack has YUV at the edge connector does it?
    guesser guesser March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... has a ULA, it's a YUV output, not RGB.

    Mousey Mousey March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    -->[b]Guesser[/b]: 48k/+ original ULAs have UVY only, ALL 128k model ULAs (ZX128/+2 and +3/+2A/+2B) have not UVY.

    BTW The TS2068 ULA is obviously the best - has both UVY and RGB signals :) (and other interesting features).
    TMX TMX March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... TS2068 ULA is obviously the best - has both UVY and RGB signals ... could actually read...
    The ULA in the toastrack is almost ...
    guesser guesser March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... /> The ULA definitely has U, V, and !Y pins, no RGB :razz ...
    guesser guesser March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... /> The ULA definitely has U, V, and !Y pins, no RGB :razz ... :[/QUOTE]
    Yes, but only the 48k ULA, not ...
    TMX TMX March 2011 Hardware
<1…23242526272829…34>

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