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  • Scrolling by 2 pixelsWhat is the fastest way of scrolling a Spectrum screen line by 2 pixels left or right? When thinking about it I've come to this simple solution: [C…

    ... in any Spectrum model during contention.
    Einar Saukas Einar Saukas August 2013 Development
  • Rainbow Chaos(I so want to call this Law of Chaos to pun on lords) Anyway. Dunno if I'll make this. But if I don't /someone/ will want to. It's just too good an …

    ... Velesoft with the ASIC 128 contention model (and no contended I ...
    chev chev August 2013 Development
  • Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…

    ... emulators) that do not match contention and frame duration tests this ...
    introspec introspec September 2013 Development
  • Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…

    ... is sensitive to specific memory contention patterns. In addition, I do ...
    introspec introspec September 2013 Development
  • Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…

    ... as the structure of the contention pattern on TC2048 and TC2068 ... unsurprisingly different, and since my contention test depends on the frame ...
    introspec introspec September 2013 Development
  • Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…

    ... horizontal screen position in my contention test and this is the ...
    introspec introspec September 2013 Development
  • Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…

    ... a guess the I/O contention model is out. I assume ... it comes to I/O contention so it can't be ... should be no I/O contention except on even ports.
    chev chev September 2013 Development
  • Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…

    ... it generates differing amount of contention on 128k and on +3 ... (due to their different contention patterns). I start this loop ... starts, i.e. where the contention starts, you can get slightly ... delay during the very first contention. The difference is just a ...
    introspec introspec September 2013 Development
  • Border art viewerRecently, we were working with diver/4d on border art. The idea was to push the techniques of drawing on the border to the limit and to see, how much…

    ... to go with the memory contention, because it also helps to ... of them have no memory contention at all).
    introspec introspec September 2013 Development
  • Machine code optimisationI'm geting back into z80 coding and wonder what the best way of showing how efficient the code is. I've got Rodney Zaks book and see there are timin…

    ... ]

    Emulators also emulate contention so no matter what, keep ...
    Alcoholics Anonymous Alcoholics Anonymous September 2013 Sinclair Miscellaneous
<1…28293031323334>

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  • 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.<br /> <br /> What I'm lack is a …
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