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<1…24252627282930…34>
  • Web Site Design SoftwareI am going to have to design a simple web site for work. I was wondering if anybody has any suggestions for software I can use to do this. I have n…

    ... , I don't want to interrupt my train of thought by ...
    Lee Fogarty Lee Fogarty December 2008 Chit chat
  • Emulator speed?I'm guessing a few forumites use an emulator to get their speccy fix. I use one, and interestingly on a few speccy games find it hugely entertaining…

    ... 100% dependent on expected tacts/interrupt-timing or whatever is going ...
    Scyphe Scyphe December 2008 Games
  • Emulator speed?I'm guessing a few forumites use an emulator to get their speccy fix. I use one, and interestingly on a few speccy games find it hugely entertaining…

    ... 100% dependent on expected tacts/interrupt-timing or whatever is going ...
    ewgf ewgf December 2008 Games
  • Emulator speed?I'm guessing a few forumites use an emulator to get their speccy fix. I use one, and interestingly on a few speccy games find it hugely entertaining…

    ... dependent on expected tacts/interrupt-timing or whatever is ... ] 100% dependent on interrupt timing. The typical way ...
    [list]
    [*] Interrupt (which disables interrupts)
    [*] Draw ... [*] Twiddle thumbs until next interrupt
    [*] Return to start ...
    Philip Kendall Philip Kendall December 2008 Games
  • Emulator speed?I'm guessing a few forumites use an emulator to get their speccy fix. I use one, and interestingly on a few speccy games find it hugely entertaining…

    ... create new games for specific interrupt timings no Sinclair machine had ...
    rahtgaz rahtgaz December 2008 Games
  • Emulator speed?I'm guessing a few forumites use an emulator to get their speccy fix. I use one, and interestingly on a few speccy games find it hugely entertaining…

    ... create new games for specific interrupt timings no Sinclair machine had ...
    rich_chandler rich_chandler December 2008 Games
  • Do you really want to play a new cool, interesting, but rather hard game?Just thinking about it... For example, someone will create a game. BIG game. BIG BIG game, with multiple loading scheme, numerous rewind blablabla (o…

    ... a game is going to interrupt the gameplay somewhat - disk reads ...
    bobs bobs December 2008 Games
  • Do you really want to play a new cool, interesting, but rather hard game?Just thinking about it... For example, someone will create a game. BIG game. BIG BIG game, with multiple loading scheme, numerous rewind blablabla (o…

    ... , a back-buffer screen, your interrupt routine, pixel address table, pre ... running your game and/or interrupt/music routines in contended memory ...
    bobs bobs December 2008 Games
  • Usr 0 ?I'm not sure I've ever seen this explained before, but why do some programs (only demos, as far as I can see, so far) need USR 0 mode when run on a 1…

    ... 48 and 128 runs in interrupt mode 1, so if you ...
    LCD LCD December 2008 Sinclair Miscellaneous
  • Usr 0 ?I'm not sure I've ever seen this explained before, but why do some programs (only demos, as far as I can see, so far) need USR 0 mode when run on a 1…

    ... , Adress 23388 is checked every interrupt, and Bank is switched to ...
    LCD LCD January 2009 Sinclair Miscellaneous
  • FatWare source codeHi, Does anyone have the latest FatWare source code for the DivIDE? I've e-mailed Baze about it but got non-delivery notices. The last I heard he'd…

    ... bugs:
    - need disable IM2 interrupt in screen backup time (divide ... of original FATWARE (fixed IM2 interrupt and real TAPe support):
    velesoft velesoft January 2009 Hardware
  • Questions about registers, stack, etc.I was told that if I wanted to export code and create unprotected versions of games I should do the following: 1-Find the starting address by using …

    ... is seriously broken. It allows interrupt to run, which may screw ...
    Patrik Rak Patrik Rak January 2009 Sinclair Miscellaneous
  • Why did the QL fail?Browsing some old magazines: an advert appeared for the QL, 128k of ram and 32 bit processor etc...also very cheap compared to other similar spec com…

    ... enable fast context switching and interrupt handling.
    [/quote]
    Winston Winston January 2009 Sinclair Miscellaneous
  • updated Fatware - keyboard patchHi! I work with Fatware code and already prepare keyboard patch for original version 0.12. Now it's possible to operate disk browser with keys: 1) c…

    ... ....

    - fix bug in interrupt IM2 ( fixed only in FATWARE ...
    velesoft velesoft January 2009 Development
  • Atic Atac speed.Dear all, Excuse the noob question, but does anyone know how fast Atic Atac runs at? What I mean is, frames per second, or the amount of pixels the…

    ... before calling
    ; hl = interrupt routine address
    ; ints enabled ... THE INTERRUPTS...
    ;****************************************

    Interrupt: push af

    ld ... a,0x80 ; flag the interrupt
    ld r,a
    frobush frobush January 2009 Games
  • Atic Atac speed.Dear all, Excuse the noob question, but does anyone know how fast Atic Atac runs at? What I mean is, frames per second, or the amount of pixels the…

    [QUOTE=frobush;326995]Here's the interrupt stuff from Saucer...[/QUOTE]

    BTW, I was alway wondering - was it you who came up with the idea of putting JR at #FFFF and use all #FFs for interrupt table?

    Patrik
    Patrik Rak Patrik Rak January 2009 Games
  • Atic Atac speed.Dear all, Excuse the noob question, but does anyone know how fast Atic Atac runs at? What I mean is, frames per second, or the amount of pixels the…

    ... and use all #FFs for interrupt table?

    Patrik[/QUOTE ...
    frobush frobush January 2009 Games
  • Atic Atac speed.Dear all, Excuse the noob question, but does anyone know how fast Atic Atac runs at? What I mean is, frames per second, or the amount of pixels the…

    Yes, bit 7 of the R register is used as an interrupt flag. And because LD A,R automatically sets the FLAG Register (you needn't test A at all) it's fast and ideal for sound loops.
    frobush frobush January 2009 Games
  • Machine code and Basic system variablesSpectrum system variables (I mean 48KB model) are essential for Basic. But what if I started my machine code program and it's never going to return t…

    ... , but I guess that the interrupt code uses system variables somehow ... you just write your own interrupt routines.

    Starion is ...
    rich_chandler rich_chandler January 2009 Sinclair Basic
  • Machine code and Basic system variablesSpectrum system variables (I mean 48KB model) are essential for Basic. But what if I started my machine code program and it's never going to return t…

    ... interrupts or write your own interrupt code

    - you cannot ...
    Ralf Ralf January 2009 Sinclair Basic
  • Playing 128k music with z88dk ?Hi, I'm amazed how easy seems to make things with z88dk to build spectrum asm programs. After my first approach I miss some way to play 128k music, s…

    ... might use it's own interrupt service routine and/or need ... so often, either with an interrupt service routine or as part ...
    Matt_B Matt_B January 2009 Development
  • Clearing the Carry flagI'm reading that sometimes I may want to clear the carry before using ADC or SBC. A simple AND A or OR B will do. However, as I see it, for 8-bit ar…

    ... use of EXX in your interrupt handler. Assembler gives you plenty ...
    Winston Winston January 2009 Development
  • FatWare source codeHi, Does anyone have the latest FatWare source code for the DivIDE? I've e-mailed Baze about it but got non-delivery notices. The last I heard he'd…

    ... of original FATWARE (fixed IM2 interrupt and real TAPe support):
    Tom-Cat Tom-Cat January 2009 Hardware
  • Understanding the StackSorry folks. I guess I'm going to be a pain for a little while. Hope it's ok with everyone. I'm currently studying the stack and wrote the little pr…

    ... reset. Why? Because the ROM interrupt routine is still active and ... but just be aware that interrupt routines will use the same ... careful timing because if an interrupt happens in the middle of ...
    evilpaul evilpaul January 2009 Development
  • Prince Harry and the word "Paki"Prince Harry is in trouble (yeah, right) for using the word "Paki" to describe a Pakistana colleague, according to: [URL]http://news.bbc.co.uk/1/hi/…

    ... this forum. But would you interrupt a private conversation in a ...
    ajmoss ajmoss January 2009 Chit chat
  • Prince Harry and the word "Paki"Prince Harry is in trouble (yeah, right) for using the word "Paki" to describe a Pakistana colleague, according to: [URL]http://news.bbc.co.uk/1/hi/…

    ... this forum. But would you interrupt a private conversation in a ...
    mile mile January 2009 Chit chat
  • Playing 128k music with z88dk ?Hi, I'm amazed how easy seems to make things with z88dk to build spectrum asm programs. After my first approach I miss some way to play 128k music, s…

    ... etc. as well which makes interrupt driven players a bit easier ...
    Winston Winston January 2009 Development
  • Super Bug in Arkanoid 2I was playing this great game on my spectrum, when something very weird happened . I was playing the second level when I got to complete it, I mean I…

    ... triggered by mistake when I interrupt the loading process...

    firelord firelord January 2009 Games
  • IN 255 behaviour not emulated in Spectaculator and ZXSpinI'm not speaking about "normal" IN 255 behaviour. All of you know what I'm taking about: IN 255 can be used to "read" screen data as it's retrieved f…

    ... but does a cycle accurate interrupt sync so each port address ...
    Bob Stains Bob Stains January 2009 Hardware
  • MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…

    ... is to display in one interrupt:

    line 1 - vram ... 1
    ....

    next interrupt you will change order of ...
    omega omega January 2009 Development
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