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  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    ... be syncronised with V-blank (interrupt) maybe some effects...
    piters piters March 2007 Hardware
  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    ... be syncronised with V-blank (interrupt) maybe some effects...[/QUOTE]
    velesoft velesoft March 2007 Hardware
  • C# emulatorHi, I wanted to branch out and get a little better with C# so I think I need something meaty to do to keep me going....so an emulator seemed a reaso…

    ... /> When you've triggered your interrupt (if necessary) then you just ...
    Dunny Dunny March 2007 Emulators
  • Adding AY music to your plogramI'd like to add some nice tune to my program written in machine code. I am not new to assembler programming but with music programming I have no expe…

    ... call the player during the interrupt and there's your song ... every 1/50s in an interrupt service routine.
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Development
  • Retargetting the Z88dkWell, I'm asking here because it's come up before, and I assume someone here might know the answer... I'm trying to retarget the Z88DK for the Z80 b…

    ... (just low level stuff like interrupt handlers and the routine that ...
    Winston Winston March 2007 Development
  • Retargetting the Z88dkWell, I'm asking here because it's come up before, and I assume someone here might know the answer... I'm trying to retarget the Z88DK for the Z80 b…

    ... (just low level stuff like interrupt handlers and the routine that ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Development
  • My emulator doesn't take "commands"Hi This is probably a question that is very hard to answer, but perhaps some of you have/had the same problem. In my own emulator (that I have built)…

    ... that these bits come from MEMPTR (which Fuse doesn't implement ...
    Philip Kendall Philip Kendall March 2007 Emulators
  • My emulator doesn't take "commands"Hi This is probably a question that is very hard to answer, but perhaps some of you have/had the same problem. In my own emulator (that I have built)…

    ... at all at dealing with MEMPTR.

    [QUOTE]I also ...
    Philip Kendall Philip Kendall March 2007 Emulators
  • Features that emulators don't haveI believe most of us use more than one emulator, mainly because there isn't one emulator that has all the features we need or want to use. We also kn…

    ... specific number of tstates after interrupt. Sounds to me like that ...
    Philip Kendall Philip Kendall March 2007 Emulators
  • Features that emulators don't haveI believe most of us use more than one emulator, mainly because there isn't one emulator that has all the features we need or want to use. We also kn…

    ... specific number of tstates after interrupt. Sounds to me like that ...
    icabod icabod March 2007 Emulators
  • Adding AY music to your plogramI'd like to add some nice tune to my program written in machine code. I am not new to assembler programming but with music programming I have no expe…

    ... ? If I understand correctly: an interrupt is an event which happens ...
    Ralf Ralf March 2007 Development
  • Adding AY music to your plogramI'd like to add some nice tune to my program written in machine code. I am not new to assembler programming but with music programming I have no expe…

    ... ? If I understand correctly: an interrupt is an event which happens ... ?[/QUOTE]

    The 50Hz interrupt is used to measure time ... set up your own im2 interrupt routine that replaces the one ... isn't using an im2 interrupt routine, but is instead relying ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Development
  • Atic Atac 128k version?Can anyone confirm that the version of atic atac in the 'UPTG : The Complete Works' is in fact 128k compatible? that is can you load it on a spectrum…

    ... will only work if an Interrupt routine is polling the memory ...
    BloodBaz BloodBaz March 2007 Games
  • Regarding the interface with USB port[url]http://www.octocom.es/reuniones/art_madridsx07_11.html[/url] [url]http://velesoft.speccy.cz/kmouse/km-doc/kempston_mouse_turbo_interface/km-t_2…

    ... design with regard to maskable interrupt processing from the Z80? ... getting garbled if the maskable interrupt rate was too high, ... or CTC) never releasing the interrupt daisy chain. (This wasn ... what was happening, during an interrupt acknowledge by the Z80, the ...
    Winston Winston March 2007 Hardware
  • Regarding the interface with USB port[url]http://www.octocom.es/reuniones/art_madridsx07_11.html[/url] [url]http://velesoft.speccy.cz/kmouse/km-doc/kempston_mouse_turbo_interface/km-t_2…

    ... design with regard to maskable interrupt processing from the Z80? ... getting garbled if the maskable interrupt rate was too high, ... or CTC) never releasing the interrupt daisy chain. (This wasn ... what was happening, during an interrupt acknowledge by the Z80, the ...
    dtl dtl March 2007 Hardware
  • RZX Archive is back!The RZX Archive is back up and running. A big thanks to Martijn for helping me out! Cheers, Daren

    ... spec if a re-triggered interrupt occured. The RZX files themselves ...
    Jon Needle Jon Needle March 2007 Games
  • RZX Archive is back!The RZX Archive is back up and running. A big thanks to Martijn for helping me out! Cheers, Daren

    ... spec if a re-triggered interrupt occured. The RZX files themselves ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Games
  • About the Cronosoft GamesHello everybody, I just want to comment one thing that happens with the Cronosoft Games. I Load them on my Spectrum+2A and I have seen that most of t…

    ... seconds or so. Music is interrupt-driven and I'd expect ...
    jonathan jonathan April 2007 Games
  • Faulty M1 linesI'm sure this has been discussed before, but using the forum search for the word 'M1' pulled back no hits, which surprised the hell out of me. Anywa…

    ... low and M1 low = an interrupt acknowledge, so just using IORQ ... 't go low on an interrupt acknowledge, so just IORQ low ...
    Winston Winston April 2007 Hardware
  • Fuse for Mac OS X 0.8.0-pre2A new public preview of the next version of Fuse for Mac OS X has been released at the dedicated sourceforge project: [url]http://sourceforge.net/pr…

    ... Weidersehen Monty (definitely a retriggered interrupt problem; see [url]http://sourceforge ... it to be a retriggered interrupt problem)
    Back to the ...
    Philip Kendall Philip Kendall April 2007 Emulators
  • Faulty M1 linesI'm sure this has been discussed before, but using the forum search for the word 'M1' pulled back no hits, which surprised the hell out of me. Anywa…

    ... low and M1 low = an interrupt acknowledge, so just using IORQ ... 't go low on an interrupt acknowledge, so just IORQ low ...
    Marcelo Marcelo April 2007 Hardware
  • NMI : especially PitersHello Piters, here the link to your NMI-button. [url]http://members.tripod.com/~piters/nmibutto.htm[/url] I don't understand your reason to place …

    ... 'd expect the CPU to interrupt the already running NMI routine ... state of IFF1 (the maskable interrupt flip flop) is restored from ...
    Winston Winston April 2007 Hardware
  • NMI : especially PitersHello Piters, here the link to your NMI-button. [url]http://members.tripod.com/~piters/nmibutto.htm[/url] I don't understand your reason to place …

    ... state of IFF1 (the maskable interrupt flip flop) is restored from ...
    obo obo April 2007 Hardware
  • NMI : especially PitersHello Piters, here the link to your NMI-button. [url]http://members.tripod.com/~piters/nmibutto.htm[/url] I don't understand your reason to place …

    ... 'd expect the CPU to interrupt the already running NMI routine ...
    robert@fm robert@fm April 2007 Hardware
  • NMI : especially PitersHello Piters, here the link to your NMI-button. [url]http://members.tripod.com/~piters/nmibutto.htm[/url] I don't understand your reason to place …

    ... the bouncing NMI doesn't interrupt again [i]too[/i] quickly ...
    obo obo April 2007 Hardware
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... is if you are doing interrupt driven music or something else ...
    Kiwi Kiwi April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... rule and change it every interrupt. Demomaking is illness :-)

    omega omega April 2007 Development
  • Need advice choosing one of these optionsA few spanish friends are willing to help me build and program the ethernet interface for the Speccy. Here are the possibilities. Any advice would be…

    ... multitasking environments. Likewise with polled / interrupt mode, though I would strongly ... favour interrupt mode if a choice had ... for polled and one for interrupt operation, if necessary. It would ...
    Alcoholics Anonymous Alcoholics Anonymous April 2007 Hardware
  • Need advice choosing one of these optionsA few spanish friends are willing to help me build and program the ethernet interface for the Speccy. Here are the possibilities. Any advice would be…

    ... 182854]Likewise with polled / interrupt mode, though I would strongly ... favour interrupt mode if a choice ... for polled and one for interrupt operation, if necessary.[/QUOTE ... already supports both polled and interrupt modes, although since there ...
    glancaster glancaster April 2007 Hardware
  • Need advice choosing one of these optionsA few spanish friends are willing to help me build and program the ethernet interface for the Speccy. Here are the possibilities. Any advice would be…

    ... other projects :-)

    For interrupt mode 2 stuff, on my ...
    Winston Winston April 2007 Hardware
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