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  • Yet another TR-DOS questionI have yet another TR-DOS problem. I am using "LD C, command; CALL #3D13" to call the system functions. The problem is that TR-DOS automatically enab…

    [quote]
    On 2003-11-18 15:15, GOC wrote:
    Great work ! So I take it there's no way to 'manually' re-page the ROM once an interrupt is finished ?
    [/quote]

    Nope :(
    Jon Needle Jon Needle November 2003 Development
  • Link TZX filesHow can I link some TZX files to ONE TZX file?

    ... block is generated when you merge two ZX Tape files together ...
    Tom-Cat Tom-Cat November 2003 Emulators
  • Help Reuqired: Stormbringer 128kCan anyone help. I am completely stuck on this game. I have the magic missile which I want to throw at the off-white knight before I can cast the mer…

    ... opposite direction and cast Dimension Merge to be a whole Knight ...
    Alessandro Grussu Alessandro Grussu December 2003 Games
  • Help Reuqired: Stormbringer 128kCan anyone help. I am completely stuck on this game. I have the magic missile which I want to throw at the off-white knight before I can cast the mer…

    ... opposite direction and cast Dimension Merge to be a whole Knight ...
    martinball martinball December 2003 Games
  • AY-3-8912 help !Hi all. Happy new yeay. I'm new to spectrum programming, and am interested in writing some music for the +2 AY chip. The problem is...I cant find …

    ... the Spectrum's vertical blanking interrupt. Most of the music ... allow you to compose these interrupt driven tunes and then ... this is no longer interrupt driven music and unless you ... intervention.

    The interrupt generated players use patterns and ...
    Alcoholics Anonymous Alcoholics Anonymous January 2004 Development
  • Better on an Emulator?!With the power of current PCs we can have our old spectrum running x2 x20 x100 it's original speed. There must be some games that benefit greatly f…

    ... relied on the 50th/second interrupt to perform timing and display ...
    Dunny Dunny January 2004 Games
  • Beta versions of Fuse 0.6.2 and libspectrum 0.2.1 availableDear all, The Fuse team is pleased to announce the release of a beta version of the upcoming 0.6.2 release of Fuse and the Fuse utilities, as well a…

    ... number of tstates after an interrupt that the main display starts ...
    Fred Fred January 2004 Emulators
  • TimingHey All, Is their away of obtaining timing information on ZX128k other than addresses 23672->23674. Basically I would like to identify every 100th …

    ... simply incremented every time an interrupt is acknowledged, hence the 0 ... timings right relative to the interrupt (see the [url="http://www ...
    Philip Kendall Philip Kendall January 2004 Development
  • Spectrum 128 Graphics - A missed opportunity?The Spectrum 128 is my favourite model of the Spectrum - the pinnacle of the Sinclair miracle before it was hijacked by Amstrad. But I can't help thi…

    ... the screen memory at every interrupt without the programmer explictly doing ...
    cyborg cyborg February 2004 Sinclair Miscellaneous
  • Spectrum 128 Graphics - A missed opportunity?The Spectrum 128 is my favourite model of the Spectrum - the pinnacle of the Sinclair miracle before it was hijacked by Amstrad. But I can't help thi…

    ... the screen memory at every interrupt without the programmer explictly doing ...
    LCD LCD February 2004 Sinclair Miscellaneous
  • TimingHey All, Is their away of obtaining timing information on ZX128k other than addresses 23672->23674. Basically I would like to identify every 100th …

    Some other computers have a 100Hz interrupt. You probably want it for 100 sounds per second?
    Fraser Fraser February 2004 Development
  • Semi-Newbie QuestionsHi Peeps, OK, I'm starting to play with my old spectrum again I have been rather spoiled by my Atari 800xl and a tape to disk utility. To the poin…

    ... /> 9010 if a$="B" then Merge ""
    9020 if a$="C ...
    Sadako Sadako February 2004 Sinclair Miscellaneous
  • TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…

    ... help from the hardware - an interrupt :) )

    About the "bit ...
    Tom-Cat Tom-Cat February 2004 MIA/STP/SDP
  • Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??

    ... ]

    NMI == "non-maskable interrupt". 'Normal' interrupts (those generated by ... DI instruction. The non-maskable interrupt, as you may be able ...
    Philip Kendall Philip Kendall March 2004 Sinclair Miscellaneous
  • Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??

    ... wrote:
    NMI == "non-maskable interrupt". 'Normal' interrupts (those generated by ... DI instruction. The non-maskable interrupt, as you may be able ... allow you to force an interrupt whenever you want, and jump ...
    monty.mole monty.mole March 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... for the
    Timer A interrupt.

    The routine is ... .

    1 Vertical blank interrupt that displays and then resets ...
    Yerz Yerz March 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... handle the effects in an interrupt routine...

    I'll ...
    gasman gasman April 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... handle the effects in an interrupt routine...
    [/quote]

    interrupt routine.

    One reason ... Amiga trackers used the frame interrupt as well.

    The ...
    Alcoholics Anonymous Alcoholics Anonymous April 2004 Sinclair Miscellaneous
  • My first attempt at Gigascreen interlacingWonderful. Did some research on the port which controls memory paging and wrote a short BASIC programme to switch pages 5 and 7 in and out of the scr…

    ... you switch screens on the interrupt the two screens will interlace ...
    Fraser Fraser May 2004 Development
  • My first attempt at Gigascreen interlacingWonderful. Did some research on the port which controls memory paging and wrote a short BASIC programme to switch pages 5 and 7 in and out of the scr…

    ... you switch screens on the interrupt the two screens will interlace ...
    LCD LCD May 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    Writing your own interrupt routine would seem much easier.
    Philip Kendall Philip Kendall May 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ... /> [/quote]

    Basic's interrupt service routine takes more than ... pass between when the vsync interrupt occurs and the beginning of ... if you wrote your own interrupt routine.
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ... im1 mode, which means an interrupt causes a restart to $38 ... im2 mode and write an interrupt routine that simply does an ... around 19 cycles following the interrupt.

    A previous code ... variable to see if an interrupt occurs. This depends on the ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ... the possibility of a retrigged interrupt?)

    Still significantly less ...
    Philip Kendall Philip Kendall May 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ... the possibility of a retrigged interrupt?)
    [quote]

    Right ... to so there's the interrupt retrigger possibility too. But I ... possible ISR when determining the interrupt pulse length.
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    Many thanks for the sample code for the Interrupt routine, I shall try this out straight away
    robpearmain robpearmain May 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... as you're not in interrupt mode 1? Otherwise, various system ...
    monty.mole monty.mole May 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... out elsewhere, the standard ROM interrupt routine takes ~1000 tstates to ...
    Philip Kendall Philip Kendall May 2004 Development
  • 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…

    ... interrupts enabled, but fail if interrupt occure a bit earlier then ...
    Vladimir Kladov Vladimir Kladov May 2004 Emulators
  • Uploaded MIA programsSome weeks ago I uploaded some MIA adventures (Der Stab des Druiden, Gruft, Notlandung, ...) as TZX files. What is done with that???

    ... native country which can subsequently merge into WoS like we do ...
    Andrew Barker Andrew Barker June 2004 MIA/STP/SDP
<1…11121314151617…34>

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