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<1…20212223242526…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…

    ... 0T annotated as start of interrupt signal). He counts everything relative ... count things from when the interrupt happens. Even if you try ... to align the interrupt with the INTREQ signal, ... zero - unlike the start of interrupt, the start of INTREQ signal ...
    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…

    ... ) at 0x7ffe 14331 tstates after interrupt, which I think should give ...
    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…

    ... be also related to the interrupt sensing? I am not a ... real machine by using double interrupt to measure the duration of ... is indeed due to the interrupt being sensed 1T earlier or ...
    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…

    ... the states to the next interrupt, if this came out as ...
    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…

    ... the states to the next interrupt.[/QUOTE]

    Actually, we ...
    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…

    ... time with respect to the interrupt.

    Regards
    Chris
    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…

    ... a range of tstates after interrupt, including 14335 and 14336. No ...
    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…

    ... a range of tstates after interrupt, including 14335 and 14336. No ...
    csmith csmith September 2007 Emulators
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... ' register is used as an interrupt 'flag'. If you set it ... time.

    The 'flyback' interrupt routine sets the flag and ...
    frobush frobush September 2007 Games
  • IY RegisterIve got a really bizarre bug, and I have only just started using the IY register. I seem to remember reading somewhere in a programming book, to neve…

    ... worse - IY is used by interrupt service routine in ROM. And ...
    Sonic Sonic September 2007 Development
  • IY RegisterIve got a really bizarre bug, and I have only just started using the IY register. I seem to remember reading somewhere in a programming book, to neve…

    If it makes a routine faster to use IY then you should use it.
    As long as you save IY before you modify it and restore the contents before it's needed by a ROM routine or an interrupt handler you should be ok.
    JamesD JamesD September 2007 Development
  • IY RegisterIve got a really bizarre bug, and I have only just started using the IY register. I seem to remember reading somewhere in a programming book, to neve…

    ... /c and has its own interrupt routine so I don't ...
    Alcoholics Anonymous Alcoholics Anonymous 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…

    ... the timing right, however the interrupt apparently does not arrive when ... to be related to the interrupt sensing as well.

    Patrik Rak Patrik Rak September 2007 Emulators
  • He's back......and he's got a new trick! AY Chip here. I've been away far too long. I would like to announce 'HatStand': for no adequately explored reason, I h…

    ... Z80 - such as making the interrupt respond at the correct time ...
    Winston Winston 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…

    ... enter some infinite loop. The interrupt handler jumps to whatever address ... stack at the moment the interrupt happens, so in case it ... is executed only if the interrupt happens too late.

    Patrik Rak Patrik Rak September 2007 Emulators
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... install the player in an interrupt routine. z88dk has an [URL ...
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... move then refuse PASS and interrupt loop
    NEXT b:
    interrupt loop
    NEXT i:
    interrupt loop
    NEXT i:
    Einar Saukas Einar Saukas September 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... ().

    * New module "interrupt.h / interrupt.c" contains a few small ... be run in the 50Hz interrupt.

    * New module "events ...
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... free for the tune and interrupt driven playback routine.

    interrupt-driven music will work?
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • Damn, I think I need a reflow ovenOr a reflow frying pan at least... I was just assembling an order through Farnell since I've worn out another soldering iron tip (which has actually…

    ... even decided over issues like interrupt or polling mode. I may ...
    Winston Winston September 2007 Hardware
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... m>1, then you interrupt checking (when i=1 fails ...
    Einar Saukas Einar Saukas October 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... in my previous posting) will interrupt checking (it will never reach ...
    Einar Saukas Einar Saukas October 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... in my previous posting) will interrupt checking (it will never reach ...
    Digital Prawn Digital Prawn October 2007 Development
  • Trying to create NMI, whats this switch?Hi, I have been reading a book Z80 Applications, and I am trying to create a simple device for creating a NMI. Here is a schematic: [url]http://www…

    ... ensures one push equals one interrupt.
    Alcoholics Anonymous Alcoholics Anonymous October 2007 Hardware
  • Trying to create NMI, whats this switch?Hi, I have been reading a book Z80 Applications, and I am trying to create a simple device for creating a NMI. Here is a schematic: [url]http://www…

    ... 0 which indicates an NMI interrupt to the z80 (the z80 ...
    Alcoholics Anonymous Alcoholics Anonymous October 2007 Hardware
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... br />
    [b]interrupt.h, interrupt.c[/b]

    ... isrs will be run on interrupt.

    [b ... void scroll_isr(void) // an interrupt routine called every 1/50s ... special "return_nc" as explained under "interrupt.c" above.

    Alcoholics Anonymous Alcoholics Anonymous October 2007 Development
  • MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]

    ... you need to change every interrupt only content of this table ... table can be changed every interrupt as well, so animations or ...
    omega omega October 2007 Hardware
  • MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]

    ... and Z80 CTC built in? Interrupt hooked to standard INT or ...
    omega omega October 2007 Hardware
  • MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]

    ... and Z80 CTC built in? Interrupt hooked to standard INT or ...
    velesoft velesoft October 2007 Hardware
  • MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]

    ... and Z80 CTC built in? Interrupt hooked to standard INT or ...
    lordcoxis lordcoxis October 2007 Hardware
<1…20212223242526…34>

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