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Search Again :: Adv Search 1000 results in 0.015s
<1234567…34>
  • 128k ULA pinout?Is there someone who has a circuit diagram or pinout for the 128k (+2) ULA?

    Is there someone who has a circuit diagram or pinout for the 128k (+2) ULA?
    Johan1973 Johan1973 August 2012 Hardware
  • 128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…

    Bverstee kindly sold me a 128K ula since the one in my + ... . But even with the new ULA, I still can not load ...
    Johan1973 Johan1973 August 2012 Hardware
  • +3 ULA question.I have a +3 and a DivIDE+ unit. Another user has suggested that the reason the DivIDE+ doesn't work on the +3 is that the ULA may be dud. I have trie…

    ... the +3 is that the ULA may be dud. I have ... can get a replcaement +3 ULA from? I have been told ... in a +3, what about 128K ULA or +2 ...
    Alien 8 Alien 8 November 2010 Hardware
  • Lot's of ZX Spectrum parts: RAM chips, ULA's, etcI have new stock of 100% tested parts. I even got my hands on a bunch of ULA's!! [IMG]http://benophetinternet.nl/hobby/sales/parts/IMG_6068.JPG[/IMG…

    ... hands on a bunch of ULA's!!

    [IMG]http ... ]

    - Modulator
    - 48K / 128K / ZX81 ROM
    [B]2 ... each[/B]

    - 48K / 128K ULA
    - Zilog Z80 3.5 ...
    bverstee bverstee December 2012 Sales
  • Redesigning the ZX Spectrum 128k - A lifelong dreamHello, I am myPinballs (Jim) and i run a small business here in the uk making replacement 8-bit hardware pcbs for arcade pinball games as well as…

    ... usage
    • Fully spectrum 128k compatible
    • 8 pages ... of 16k ram 128k total
    • High quality ... connection
    • Uses the 128k ULA IC - Ferranti 7K010E/Amstrad 40056 ... Finally some videos with classic 128k music (similar to the ...
    myPinballs myPinballs August 2016 Hardware
  • Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…

    ... I was wondering about the 128k+ (Sinclair/heatsink) Spectrum ... and a 21.47727MHz (NTSC) crystal.
    I've ... post and understand the ULA plays a part ... was wondering since the 128k+ ULA is different from the ... hooked up my 128k+ to my NTSC TV through component ...
    thomas3120 thomas3120 January 2012 Hardware
  • ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …

    ... in "The ZX Spectrum ULA: how to design a ... , 14MHz (experimental). The original ULA contention algorithm is always applied ... output (PAL => PAL ULA, NTSC => NTSC ULA)
    - VGA 50Hz/60Hz ... VGA 50Hz => PAL ULA, VGA 60HZ => NTSC ULA)

    At ...
    adorigatti adorigatti August 2011 Hardware
  • RealXThis may be a dumb question but will RealX ever get released?

    ... for determining where the ULA reads display/attr bytes ... /> We only studied the 128K ULA directly, not the 48K one ... formula be confirmed for the 128K, I guess I could ... 48K but straight in the 128K. But that's only ... is to know about the ULA!
    [/QUOTE]
    ...
    Luca Luca July 2006 Emulators
  • Spectrum ULA replacement!Hi gang.. The Speccy 48 ULA Replacement is *almost* here ;) There has been lots of activity in building the CPLD board, sorting out some irritating…

    [QUOTE=csmith;259667]Hi gang..
    The Speccy 48 ULA Replacement is *almost* here ;)
    [/QUOTE]

    so there are differences between 128k ula and 48k ula(?).
    Arda Arda April 2008 Hardware
  • Spectrum ULA replacement!Hi gang.. The Speccy 48 ULA Replacement is *almost* here ;) There has been lots of activity in building the CPLD board, sorting out some irritating…

    ... are differences between 128k ula and 48k ula(?).[/QUOTE]
    128K ULA has RGB video ... output and 48K ULA is ... video output. If one 48k ULA replacement exist it will be ...
    Gods Gods April 2008 Hardware
  • Spectrum ULA replacement!Hi gang.. The Speccy 48 ULA Replacement is *almost* here ;) There has been lots of activity in building the CPLD board, sorting out some irritating…

    [QUOTE=Gods;259917]128K ULA has RGB video output and 48K ULA is YUV ... video output. If one 48k ULA replacement exist it will be ... /+3 board.[/QUOTE]
    There ULA replacement will have a flying ...
    csmith csmith April 2008 Hardware
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... , like mega-ula or super-ula. or perhaps ula c64 ;D ) in 128k model ... in real hardware until the 128k ULA has been reverse engineered.
    guesser guesser November 2009 Emulators
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... in real hardware until the 128k ULA has been reverse engineered.[/QUOTE ... and increase the memory to 128k and be able to play ... 128k games?


    just ...
    BiNMaN BiNMaN November 2009 Emulators
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... and increase the memory to 128k and be able to play ... 128k games?


    just ... /> Nope. You'd need the 128K ULA for the memory paging, amongst ...
    Matt_B Matt_B November 2009 Emulators
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... ]Nope. You'd need the 128K ULA for the memory paging, amongst ... /> You could replace the 48 ula with an upgrade with more ... than that, doable. :-) the 128 ula specifics are not difficult to ...
    csmith csmith November 2009 Emulators
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... ]Nope. You'd need the 128K ULA for the memory paging, amongst ...
    BiNMaN BiNMaN November 2009 Emulators
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... =Alcoholics Anonymous;398462]The ULA is timed to make ... same horizontal resolution. Your ULA would have to be ... called the column. The ULA gets its two display ... subject of improving the 128k ULA was at the very ... reverse licensed the 2068 ULA at the very least ...
    andrew_rollings andrew_rollings November 2009 Emulators
  • +3 ULA question.I have a +3 and a DivIDE+ unit. Another user has suggested that the reason the DivIDE+ doesn't work on the +3 is that the ULA may be dud. I have trie…

    ... the +3 is that the ULA may be dud.[/QUOTE]
    ULA from?[/QUOTE]
    From a ... , what about 128K ULA or +2 ULA?[/QUOTE]
    The +3 ULA (not really ... a ULA at all, but we ...
    guesser guesser November 2010 Hardware
  • Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…

    ... a copy. Doesnt cover the 128k at all however.[/QUOTE]
    128K ULA in the ULA Versions chapter, though it ... from these superficial mods, the 128K ULA is identical to the 48K ... page handling provided by the 128K PAL chip, the behaviour of ...
    csmith csmith January 2011 Hardware
  • Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…

    ... pages dedicated to the 128K ULA in the ULA Versions chapter, though it ... from these superficial mods, the 128K ULA is identical to the 48K ... give a 48K Spectrum a 128K Spectrum memory model? If you ... page handling provided by the 128K PAL chip, the behaviour of ...
    spodula spodula January 2011 Hardware
  • 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…

    ... :

    [code];; Distinguish between 128K and +3 by looking at ... induces memory paging on the 128K (and doesn't on the ... ). Well known bug in the 128K ULA.

    The 0xbffd test ... value is read on the 128K).

    [quote]however banks ...
    Philip Kendall Philip Kendall July 2011 Hardware
  • 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…

    ... :

    [code];; Distinguish between 128K and +3 by looking at ... induces memory paging on the 128K (and doesn't on the ... ). Well known bug in the 128K ULA.[/quote]

    For my ...
    csmith csmith July 2011 Hardware
  • 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…

    Do I foresee a 128K ULA clone in the near future? If so, please consider adding the different Timex SCLDs to your project as well. Just like the ULAs, the only way to get one is by getting it from another Timex.
    zxbruno zxbruno July 2011 Hardware
  • What happened to the Elite Systems Spectrum?Back in February of this year I read an article that Elite Systems were going to re-release the ZX Spectrum for the 30th Anniversary in 2012. Is thi…

    ... /2 keyboard support. Full 48/128K PAL/NTSC compatibility.

    The ...
    csmith csmith November 2011 Hardware
  • What happened to the Elite Systems Spectrum?Back in February of this year I read an article that Elite Systems were going to re-release the ZX Spectrum for the 30th Anniversary in 2012. Is thi…

    ... /2 keyboard support. Full 48/128K PAL/NTSC compatibility.

    The ...
    lfaria lfaria November 2011 Hardware
  • What happened to the Elite Systems Spectrum?Back in February of this year I read an article that Elite Systems were going to re-release the ZX Spectrum for the 30th Anniversary in 2012. Is thi…

    ... /2 keyboard support. Full 48/128K PAL/NTSC compatibility.

    The ...
    Spectrum Spectrum November 2011 Hardware
  • What happened to the Elite Systems Spectrum?Back in February of this year I read an article that Elite Systems were going to re-release the ZX Spectrum for the 30th Anniversary in 2012. Is thi…

    [QUOTE=csmith;580064]
    - does have SD Card and PS/2 keyboard support. Full 48/128K PAL/NTSC compatibility.

    [/QUOTE]

    Nice! NTSC support.
    beanz beanz November 2011 Hardware
  • What happened to the Elite Systems Spectrum?Back in February of this year I read an article that Elite Systems were going to re-release the ZX Spectrum for the 30th Anniversary in 2012. Is thi…

    ... /2 keyboard support. Full 48/128K PAL/NTSC compatibility.[/QUOTE]
    Nice ... ! NTSC support.[/QUOTE]

    I ...
    ZnorXman ZnorXman November 2011 Hardware
  • What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…

    ... ULA which does I/O contention, I should go for a 128K ... contention pattern, as the 128K ULA does implement I ... ?

    Besides, does 128K programs check whether they are ... page arranging accordingly? AFAIK, 128K programs just use pages based ...
    mcleod_ideafix mcleod_ideafix November 2011 Hardware
<1234567…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    Renegade on April 21
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    John Elliott on April 21
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    rich_chandler on April 21
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    mel the bell on April 21
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    harriusherbartio on April 21
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    AndyC on April 21
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  • 128k ULA pinout?Is there someone who has a circuit diagram or pinout for the 128k (+2) ULA?
  • 128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…
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