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<1…11121314151617…34>
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... understand it... the wiki assumes contention is applied before T1, but ... [/I]" statement come about because contention was investigated using IO instructions ... continues for 6 cycles, Memory contention starts at 14338 and continues ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... than doing

    tstates += contention[ tstates ]
    tstates++;
    tstates ... /> tstates++;
    tstates++;
    tstates += contention[ tstates ]
    tstates++;

    with contention starting at 14337/8. From ...
    Philip Kendall Philip Kendall September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... ]So, has the "[I]contention starts at 14336 and continues ... ]" statement come about because contention was investigated using IO instructions ... that's irrelevant. My contention.tap test shows that even ... long, which means the contention can be applied anywhere in ...
    Philip Kendall Philip Kendall September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... is just one type of contention, which starts at 14336 ... to apply the memory contention at T1 two states ... later is that the memory contention in Harlequin does not ... is that the IO contention gets applied in the ... you change the memory contention to be the same ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... is just one type of contention, which starts at 14336.
    Woody Woody September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... tries to apply the memory contention at T1 two states later ... is that the memory contention in Harlequin does not work ... I was thinking about 2 contention patterns.

    [QUOTE]Chris ... the same as the IO contention pattern?[/QUOTE]

    I ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... -state level, and memory contention does not appear to be ... have a pointless crossover between contention models.

    The ... others not, and the memory contention being the same as the ... being a clean period of contention spanning the whole bytefetch - ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... /> I've hooked IO contention and mem contention together and run a ... /> Fusetest - all passed
    contention - lots of FF in the ... implemented the T1 only mem-contention check.

    [I] ... Floatspy now returns 14347. Philips contention returns all 0's[/I ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... fetches and memory contention is concerned. And IO contention very likely as ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... least I got the IO contention worked nailed, and that [I ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... fetches and memory contention is concerned. And IO contention very likely as ... you realised about the mem contention of T1 is exactly the ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... you'd just finished your contention implementation based on the old ...
    Woody Woody September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... you'd just finished your contention implementation based on the old ...
    csmith csmith September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... you'd just finished your contention implementation based on the old ...
    rich_chandler rich_chandler September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... interest for memory and IO contention testing. I have run it ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Paging MemoryAny idea why this short piece of code doesnt work, just crashes. I am just messing with paging memory in and out (not achived this yet) and reading t…

    ... unless you care about memory contention) - either of those pages can ...
    gasman gasman September 2007 Development
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... . However Spin 0.622 shows contention (presumably in 9th cycle of ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • What did Spectrum BASIC lack (and was BBC BASIC so good?)Over the years, I've read in various multi-format magazines, that BBC BASIC was probably the best BASIC available on an 8-bit machine. I've never use…

    ... CPU and lack of memory contention, but mostly it's down ...
    Matt_B Matt_B September 2007 Sinclair Basic
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... are the chances of IO contention not being applied at T2 ... . Also, the fact that all contention is supressed during TW and ... prove that the 48k IO contention must really work as described ... as well as suppressing the contention during the following two T ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... to mean that some different contention scheme was applied to the ... paging doesn't disable the contention of the high range, port ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... of result above with my contention.tap test).
    Philip Kendall Philip Kendall September 2007 Emulators
  • Leave AY Chip alone guysWould you have a go at a child with down syndrome? No, thought not. AY has Asberge Syndrome, it's a form of Autism - think of that please before y…

    ... could have coded accurate IO contention using Visual C++...

    rich_chandler rich_chandler September 2007 Chit chat
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... the research done before adding contention, floating bus and accurate screen ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • PC power source and Spectrums.I'm planning to use a basic PC ATX power source (300W) for all my sinclair equipment, but I have two questions: - I've read about some nasty things …

    ... flow (from the formula V = IR). This may not necessarily turn ...
    Winston Winston October 2007 Hardware
  • PC power source and Spectrums.I'm planning to use a basic PC ATX power source (300W) for all my sinclair equipment, but I have two questions: - I've read about some nasty things …

    ... flow (from the formula V = IR). This may not necessarily turn ...
    guesser guesser October 2007 Hardware
  • MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]

    ... due to +3's ULA contention. Don't know...

    omega omega October 2007 Hardware
  • MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]

    ... due to +3's ULA contention. Don't know...
    [/QUOTE ...
    velesoft velesoft October 2007 Hardware
  • Speccy emulation with R4 - DSpec, ZXDS & SpeccyDS...Finally got an R4 card up & running, and I've installed DSpec, ZXDS & SpeccyDS onto it, but I've a couple of questions I'm hoping somebody can help w…

    ... it nevertheless. The features include contention and floating bus emulation, accurate ...
    Patrik Rak Patrik Rak October 2007 Emulators
  • Speccy emulation with R4 - DSpec, ZXDS & SpeccyDS...Finally got an R4 card up & running, and I've installed DSpec, ZXDS & SpeccyDS onto it, but I've a couple of questions I'm hoping somebody can help w…

    ... it nevertheless. The features include contention and floating bus emulation, accurate ...
    Daren Daren October 2007 Emulators
  • Speccy emulation with R4 - DSpec, ZXDS & SpeccyDS...Finally got an R4 card up & running, and I've installed DSpec, ZXDS & SpeccyDS onto it, but I've a couple of questions I'm hoping somebody can help w…

    ... it nevertheless. The features include contention and floating bus emulation, accurate ...
    Daren Daren October 2007 Emulators
<1…11121314151617…34>

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