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  • The funniest thing we made with the spectrumHello. The funniest thing i made with the spectrum were championships with my buddy francisco on a game called 3d stunt car racer, i think that was t…

    ... code, then set up a interrupt table, move the relocatable error ... deleted itselt (NEW). This new interrupt routine was still calling the ...
    NicAdi NicAdi August 2002 Games
  • Looking for a Spectrum emulator which supports multi-button joysticksHello, I'm very new to the Spectrum Emulation game, and have tried a few, my favorite being X128. However, I play my games on a 4 button joypad, and…

    ... /> Have you tried playing disabling interrupt mode (and using polling instead ...
    Alessandro Tommasi Alessandro Tommasi August 2002 Emulators
  • Looking for a Spectrum emulator which supports multi-button joysticksHello, I'm very new to the Spectrum Emulation game, and have tried a few, my favorite being X128. However, I play my games on a 4 button joypad, and…

    ... /> Have you tried playing disabling interrupt mode (and using polling instead ...
    Jazzbeaux Jazzbeaux August 2002 Emulators
  • My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …

    ... full advantage of their hardware - interrupt lengths, reading non-existant ports ...
    Anonymous Anonymous October 2002 Sinclair Miscellaneous
  • Solution for overwritten stack in 48k SNA filesIt has been known for quite some time now that the 48k SNA file format has one serious fault, which is described in the file formats section on the W…

    ... usually synchronized with the Spectrum interrupt (it would be imposible for ...
    Anonymous Anonymous October 2002 Emulators
  • Anyone got a copy of 'Z80 for primates'?This Z80 lark isnt easy, in fact it makes me feel very much like Washoe the chimp trying to learn learn sign language, I just dont think I've got the…

    ... you really need to use IM2 to get the timing right ...
    cyborg cyborg November 2002 Sinclair Miscellaneous
  • Spectrum edge connectors and 'Dataman Softy S4'Hi, I moved this from the sales thread because it seems more appropriate...anyway... I was twerping around the idea of turning a Spectrum into a we…

    ... talking about interrupts.

    IM2 works with a vectortable and ... is a nice example of IM2

    [code]
    ORG ...
    Dr BEEP Dr BEEP November 2002 Sinclair Miscellaneous
  • New SPIN 0.3a releaseHi all, here's the next version - mainly a maintenance release, with new bugs :) Here's what's new: V0.3a - Bugs and more tapes -------------------…

    ... option to move the 50Hz interrupt to the end of the ... updating the picture after an interrupt and before it is being ...
    Fraser Fraser November 2002 Emulators
  • ZX Spin 0.4 available for Download.Standard Cut-n-Paste from the CSS post: If all goes well, I'll upload it to WOS on monday. ----------------------------------------- Okay, it's th…

    ... faster. How about implementing the interrupt as an option at the ...
    Fraser Fraser December 2002 Emulators
  • ZX Spin 0.4 available for Download.Standard Cut-n-Paste from the CSS post: If all goes well, I'll upload it to WOS on monday. ----------------------------------------- Okay, it's th…

    [quote]
    On 2002-12-01 14:10, Fraser wrote:
    How about implementing the interrupt as an option at the end of the main picture?
    [/quote]

    For what purpose?
    I can't see no possible reason for wanting this.
    Woody Woody December 2002 Emulators
  • ZX Spin 0.4 available for Download.Standard Cut-n-Paste from the CSS post: If all goes well, I'll upload it to WOS on monday. ----------------------------------------- Okay, it's th…

    ... at the start of an interrupt servicing routine. The reason is ... graphics visible. By shifting the interrupt to the end of the ...
    Fraser Fraser December 2002 Emulators
  • ZX Spin 0.4 available for Download.Standard Cut-n-Paste from the CSS post: If all goes well, I'll upload it to WOS on monday. ----------------------------------------- Okay, it's th…

    ... />
    Second - if the hardware interrupt signal remains at fixed position ...
    secarica secarica December 2002 Emulators
  • ZX Spin 0.4 available for Download.Standard Cut-n-Paste from the CSS post: If all goes well, I'll upload it to WOS on monday. ----------------------------------------- Okay, it's th…

    ... here about moving the hardware interrupt in advance, not disabling it ... idea about moving the hardware interrupt position has no meaning if ...
    secarica secarica December 2002 Emulators
  • did anybody program games for their spectrum?did anybody make games for their spectrum and have you still got them in tap/z80 format. i once attempted to make a side scrolling game but it didn…

    ... spectrum speed, but takes the interrupt from the PC. It moves ...
    Dunny Dunny December 2002 Games
  • A game that took the Spectrum to its maximumWhat Spectrum games took it to the maximum of its capacity? I think R-Type is a good example. What are yours?

    ... constantly switching screens at the interrupt a high resolution effect is ...
    Fraser Fraser December 2002 Games
  • A game that took the Spectrum to its maximumWhat Spectrum games took it to the maximum of its capacity? I think R-Type is a good example. What are yours?

    ... constantly switching screens at the interrupt a high resolution effect is ...
    secarica secarica December 2002 Games
  • Here's a christmas present for you!SE Basic is no longer being developed.

    ... instruction) and just taken the interrupt from the PC's timer ...
    Dunny Dunny December 2002 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    Set your RAMTOP as to allow enough room for IM2 vector table, AY data, AY player, IM2 routine. Set IM2 mode. IM2 rountine should RST 38 and call AY player then RET preserving the value of HL'.
    cyborg cyborg January 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... data, AY player, IM2 routine. Set IM2 mode. IM2 rountine should RST 38 ...
    Dr BEEP Dr BEEP January 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    After your interrupt servicing routine has preserved registers ... of a regular mode 1 interrupt. Then pull register values off ...
    Fraser Fraser January 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... 02BF :)

    Essentially the IM2 routine would be something like ... :

    The IM2 setup would be something like ... /> ORG SETUP ; code fits before IM2 vector routine

    ... LD I,HIGHBYTE
    IM2

    ; IM2 routine will use I ...
    cyborg cyborg January 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    [quote]

    The IM2 setup would be something like:< ... /> ORG SETUP ; code fits before IM2 vector routine

    DI ... ,257
    LD A,VECTOR ; IM2 vector
    LDIR
    LD ... I,HIGHBYTE
    IM2

    [/quote]

    Dr BEEP Dr BEEP January 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... ) to remove the need for IM2 vectors etc.
    cyborg cyborg January 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... above and to use an IM2 mode routine (which really isn ...
    cyborg cyborg January 2003 Sinclair Basic
  • Something i'd like to see in future spectrum emu'sI haven't checked every emu out so i hope this hasn't been implemented somewhere already...one thing i'd like to see is a special enhanced mode where…

    ... a game synchronises itself to IM2 or similar - but generally they ...
    cyborg cyborg January 2003 Emulators
  • Something i'd like to see in future spectrum emu'sI haven't checked every emu out so i hope this hasn't been implemented somewhere already...one thing i'd like to see is a special enhanced mode where…

    ... up the cpu speed on interrupt driven games may get more ... with Technician Ted. Moving the interrupt to the end of the ...
    Fraser Fraser January 2003 Emulators
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... />
    It's got an interrupt driven player that takes care ...
    Alcoholics Anonymous Alcoholics Anonymous February 2003 Sinclair Basic
  • Newer name of the gameI can't find out the name of my old favourite game. This was a Boulder Dash style game, but no scrolling screen. I think you had to collect ?beer? or…

    ... of the engine is the interrupt for the timing and sound ...
    edy.wss edy.wss February 2003 Games
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... fairly basic one. The actual interrupt routine is trivial.
    cyborg cyborg February 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... 'commands':

    1. interrupt: load up AY registers to ... is decremented.

    3. interrupt: counter reaches zero. Turn off ... might be doable in an interrupt driven manner: express tone ... period of time in each interrupt. It would an interesting ...
    Alcoholics Anonymous Alcoholics Anonymous February 2003 Sinclair Basic
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