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Search Again :: Adv Search 1000 results in 0.007s
<1234567…34>
  • Smokin... more 48k woesHi, it looks like I've converted another Spectrum 48K+ into a smoke machine. I'd been rebuilding an Opus Discovery unit and everything looked good. …

    ... , as is the NMI and floating bus. The ROM checksum is also ...
    rune rune November 2014 Hardware
  • [NEW] Retro Virtual Machine v1.0.0 for OSX released!!!!Here it is! Retro Virtual Machine v1.0.0 RELEASED!!!! Many thanks first to Patrik Rak for the PZX format and for their Z80 tests without which RVM…

    ... % accurate).
    Emulation of the ‘floating bus’
    Emulation of the contended ...
    jcgamestoy jcgamestoy September 2015 Emulators
  • New stable version ZEsarUX-4.2Hi everyone! I have uploaded a new stable version of ZEsarUX emulator, version 4.2. You can download it from: https://sourceforge.net/projec…

    ... symbol (*) is shown
    Improved floating bus value
    Updated Z88 OZ ...
    chernandezba chernandezba December 2016 Emulators
  • Interrupts, 16k Spectrums and snowI'm writing something for the 16k Spectrum and I want to use interrupts. The avilable documentation doesn't seem clear enough for me to figure out ho…

    ... case someone suggests using the floating bus - that's what I'm ...
    evilpaul evilpaul August 2017 Development
  • Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…

    ... the mystery of the elusive floating bus on these machines, and no ... if I can fetch a bus value from it. Now, I ... this anyway), and skip ULA/bus polling on a +2A/3 ...
    Ast_A_Moore Ast_A_Moore September 2017 Development
  • New emulator - Spectramine v.1.0b releasedI post the first release of my Spectramine emulator, with minimal functionality, for public testing of emulation quality and compatibility with games…

    ... to him for that!). Also, floating bus of +2A/+3 is emulated ...
    weiv weiv September 2017 Emulators
  • Programs with strict timing requirements.Hi, all, I am a bit stuck about the timings of my SpecIde emulator. (https://github.com/MartianGirl/SpecIde) The thing is, I think that the tim…

    ... , the programs from the +2A floating bus thread, shock, overscan, mda, hercules ...
    TheMartian TheMartian April 2018 Emulators
  • SpecIde updated!Hi, all! In these past months I've been brushing up a bit my emulator, SpecIde, a.k.a. the least efficient emulator in the world. At this momen…

    ... (Issue 2/3, contended memory, floating bus, snow effect...)
    - Pixel-perfect ... /+2. (Also with contended memory, floating bus, snow effect...)
    - Pixel- ... 've implemented the contended memory, floating bus port...)
    - Kempston and Sinclair ...
    TheMartian TheMartian May 2019 Emulators
  • ZXDS 2.0.0Hello, after few months of intense work, I am finally ready to announce [url="http://zxds.raxoft.cz"]new ZXDS release[/url] for Nintendo 3DS. The …

    ... WPA instead of WEP, or floating bus emulation for +2A/+3 machines ...
    Patrik Rak Patrik Rak December 2019 Emulators
  • Inkspector 2.0 (final) releasedI’ve just released Inkspector 2.0 final (there was a preview version released before Xmas). It’s a new emulator for Windows with all-new code (non ca…

    ... behaviours including the +2A/+3 floating bus) it has a built-in ...
    inky inky May 2020 Emulators
  • Compatibility of Spectrum 128K and +3I wondered if the are any compatibilty problems between software running on the 128K and the +3. e.g. if I would connect a disk drive to the 128K wou…

    ... to define the lack of floating bus as an extension, in which ...
    Philip Kendall Philip Kendall March 2003 Sinclair Miscellaneous
  • ArcadiaIt's been bugging me for years - why does your ship in Arcadia wobble all over the place with a tendency to veer to one side? Was that intentional or…

    You need to play it in an emulator (such as SPIN or Spectaculator) with the Fuller joystick attached. The game assumes that there is one, and the lack of one combined with floating bus behaviour produces that effect.

    D.
    Dunny Dunny July 2003 Games
  • Detecting +3 or +2AIs it possible to detect whether your BASIC program is running on a +2A/+3 or a proper 128?

    ... /+3 don't have a floating bus effect so you'll always ...
    Woody Woody August 2003 Sinclair Basic
  • bug in spectaculator? Hi Jon, While testing the AMX mouse emulation in Spectaculator I noticed that the mouse buttons don't work. My program reads port $df to detect mo…

    ... only puts bits on the bus when you press a button ... of screen and attribute bytes (floating bus effect).

    [quote]
    Jon Needle Jon Needle August 2003 Emulators
  • One Man And His DroidPosted a few days back about control probs with a few games, after a bit of getting used to what to look for controls-wise and all the .txt files und…

    Looks like the game ignores the keyboard if a kempston is attached.

    So you either need an emulator with kempston joystick support or, for keyboard, an emulator that gives floating bus behaviour on port 31.
    Woody Woody April 2004 Games
  • One Man And His DroidPosted a few days back about control probs with a few games, after a bit of getting used to what to look for controls-wise and all the .txt files und…

    ... keyboard, an emulator that gives floating bus behaviour on port 31.
    bus floating over port 31. It will ...
    Arjun Arjun April 2004 Games
  • One Man And His DroidPosted a few days back about control probs with a few games, after a bit of getting used to what to look for controls-wise and all the .txt files und…

    Btw, for an explanation of the floating bus, visit [url="http://www.ramsoft.bbk.org/floatingbus.html"]http://www.ramsoft.bbk.org/floatingbus.html[/url]

    :)
    Woody Woody April 2004 Games
  • Emulation accuracy and how it affects softwareHi folks. I was thinking of bodging together a rudimentary Spectrum emulator myself, not as a competitor to the other emulators, but as an integrate…

    IIRC Cobra and Arkanoid will fail due to lack of floating bus.

    Several more will come to mind again given time...
    Woody Woody May 2004 Emulators
  • Emulation accuracy and how it affects softwareHi folks. I was thinking of bodging together a rudimentary Spectrum emulator myself, not as a competitor to the other emulators, but as an integrate…

    ... it doesn't have the floating bus. I have tried > 400 ... doesn't work because of floating bus + port conflict trouble. It reads ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Emulators
  • Emulation accuracy and how it affects softwareHi folks. I was thinking of bodging together a rudimentary Spectrum emulator myself, not as a competitor to the other emulators, but as an integrate…

    Sidewize (floating bus again).

    Other than ...
    Philip Kendall Philip Kendall May 2004 Emulators
  • Another Z80 processor questionOK, this time this isn't clearly covered in the FAQ, as far as I can see.... Suppose we have the CB instruction "SET b,r" (b=bit, r=register (differ…

    ... interested in ultra-precise stuff (floating bus, contended memory), but I want ...
    GOC GOC July 2004 Development
  • Mysterious bit of codeHi everyone, I found the follow piece of code in a game and was wondering what it does. ld bc,40ffh ld e,40h loop ld a,r …

    You may wish to see Ramsoft's "Floating Bus Explained" document for a thorough explanation of what's going on with reads from unattached ports.
    Philip Kendall Philip Kendall August 2004 Sinclair Miscellaneous
  • A few questions regarding EmuZwinI had posted this in the development forum and then remembered there was an emulators forum, so apologies for the repetition. 1. I have been trying …

    ... .

    [quote]
    4. Floating Bus implementation. I use this to ... can test an emulator's floating bus emulation accuracy using Ramsoft's ...
    Woody Woody August 2004 Emulators
  • An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…

    ... (doesn't do multicolour or floating bus though), and so are the ...
    GOC GOC August 2004 Development
  • An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…

    ... (doesn't do multicolour or floating bus though), and so are the ...
    CKay CKay August 2004 Development
  • An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…

    [quote]
    On 2004-08-28 21:23, GOC wrote:
    Well, the emulator itself is functional (doesn't do multicolour or floating bus though), and so are the most of the main debugging functions
    [/quote]

    Any chance of a look at this?
    Woody Woody August 2004 Development
  • An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…

    ... (doesn't do multicolour or floating bus though), and so are the ...
    cyborg cyborg August 2004 Development
  • Games not working on the plus 2a/plus3Can anyone please tell me the name of any games that would not work with the plus 2a/plus 3 even in 48k mode? Games that were simply not compatable …

    Cobra and Arkanoid spring to mind due to the floating bus issue.

    D.
    Dunny Dunny October 2004 Sinclair Miscellaneous
  • Games not working on the plus 2a/plus3Can anyone please tell me the name of any games that would not work with the plus 2a/plus 3 even in 48k mode? Games that were simply not compatable …

    There was a version of Cobra on a Plus 3 compilation disk: The Magnificent Seven, which must use some alternative to the floating bus.

    Derek
    dmsmith dmsmith October 2004 Sinclair Miscellaneous
  • Games not working on the plus 2a/plus3Can anyone please tell me the name of any games that would not work with the plus 2a/plus 3 even in 48k mode? Games that were simply not compatable …

    Just checked. The version of Cobra released by the Hit Squad doesn't use floating bus.
    dmsmith dmsmith October 2004 Sinclair Miscellaneous
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