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  • Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…

    ... ) and compensating for the different interrupt rates. When AY chip support ... understand that. What is this interrupt routine to load the songs ... later, and so on. An interrupt service routine can do that ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Games
  • The BASIC ISRFirst of all, excuse me if my blatant ignorance about this topic makes me write some nonsense :) The thing is that I'm finishing a game in mixed BAS…

    ... that sets up your own interrupt routine. This routine would check ... , and then call the BASIC interrupt (RST #38?).
    I'm ... .

    Setting up an interrupt is easy - you'll need ...
    icabod icabod November 2006 Sinclair Basic
  • The BASIC ISRFirst of all, excuse me if my blatant ignorance about this topic makes me write some nonsense :) The thing is that I'm finishing a game in mixed BAS…

    Yep, that's pretty much what I usually do.
    Actually, I usually just do "EI; RET" in my interrupt routines, but that doesn't really help here, hehe.
    icabod icabod November 2006 Sinclair Basic
  • The BASIC ISRFirst of all, excuse me if my blatant ignorance about this topic makes me write some nonsense :) The thing is that I'm finishing a game in mixed BAS…

    ... how to set up an interrupt service routine? Is it just ...
    na_th_an na_th_an November 2006 Sinclair Basic
  • The BASIC ISRFirst of all, excuse me if my blatant ignorance about this topic makes me write some nonsense :) The thing is that I'm finishing a game in mixed BAS…

    To set up an interrupt service routine you ... same value. When an interrupt occurs, it looks at ... 16-bit address of your interrupt routine... which is why ... , the address of your interrupt routine is at $fefe.< ... your table, and your interrupt routine, you then LD ...
    icabod icabod November 2006 Sinclair Basic
  • The BASIC ISRFirst of all, excuse me if my blatant ignorance about this topic makes me write some nonsense :) The thing is that I'm finishing a game in mixed BAS…

    ... all of these in the interrupt service routine. Also, if you ... ? This assumes your player and interrupt routine is located in the ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Sinclair Basic
  • Urgent Help needed to fix this: calling all machine code gurusI am currently trying to write tutorials on the amazing Orfeus music composer by Proxima which allows you to do multi channel music through the beepe…

    ... complete it'll change the interrupt mode back to IM 1 ...
    icabod icabod November 2006 Development
  • ZX OS'es: really useful? eg. ZX Spectrum OS, "Doors" by Aqua[url]http://www.snakeoillabs.com/2005/10/30/8-bit-guis-eye-candys-not-just-for-the-32-bit/[/url] I know bunch of OSes around like those, are those O…

    ... a timer on the NMI interrupt. Protection of the kernel is ... 's memory space on NMI interrupt and only allowing user programs ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Sinclair Miscellaneous
  • Election of the new maintainer of the TZX formatHi folks, the topic says all, let the discussion begin :) Luca

    Don't mean to interrupt but what's the latest on Mikie's research findings for ver 1.21? I believe the idea was to make it public so that TZX team members, emulator authors and TZX tool writers can discuss on the issue of taking the format forward?
    Arjun Arjun November 2006 Emulators
  • The new GP2Xpectrum releases threadYeah, I know the thread title isn't exactly too original, but I've decided that just one post to hold all updates makes more sense than a lot of smal…

    ... /forums/showthread.php?t=11427]MEMPTR hidden register[/URL], but I ...
    Metalbrain Metalbrain December 2006 Emulators
  • 128k Page FlippingOver on adverts, AOwen wrote the following: [quote=aowen]The trick, as I understand it, is to redraw the whole screen each time at #c000, but point…

    ... , you should wait until the interrupt (HALT) before you switch screens ...
    icabod icabod December 2006 Development
  • 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…

    ... timer that generates a programmable interrupt. This can be very simple ... you could get it to interrupt half way down the screen ...
    Alcoholics Anonymous Alcoholics Anonymous December 2006 Development
  • Mayhem Accelerator - Prototype Complete [Sam CoupI am now pleased to announce that on the 8th June the prototype of the Mayhem Accelerator was finally completed. With work on the accelerator start…

    ... timer capable of generating an interrupt could be a useful addition ... planned to have an extra interrupt generator, to aid sample playback ...
    Quazar Quazar December 2006 Announcements
  • ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…

    ... emulated as per the FAQ - MEMPTR isn't emulated as there ...
    Dunny Dunny December 2006 Emulators
  • ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…

    ... undocumented behaviour except for the MEMPTR thing, that isn't tested ...
    Metalbrain Metalbrain December 2006 Emulators
  • ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…

    ... undocumented behaviour except for the MEMPTR thing, that isn't tested ... /> [/quote]

    Well, as MEMPTR *is* flags 5+3, I ...
    Dunny Dunny December 2006 Emulators
  • ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…

    ... />
    [QUOTE=Dunny]Well, as MEMPTR *is* flags 5+3, I ... tested. Yes?[/QUOTE]

    MEMPTR is flags 5+3 for ... probably because the value of MEMPTR is fixed due to a ...
    Metalbrain Metalbrain December 2006 Emulators
  • ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…

    SPIN's core gives the wrong results in a few cases for a subset of arithmetic opcodes which is neither due to MEMPTR or flags 5+3 :)
    Woody Woody December 2006 Emulators
  • Developing the Spectrum ROMI'm working on some Z80 assembler for a Z80-based single board computer that I'm building. For the things that don't poke my hardware, I'm using a Sp…

    ... was SAM's screen. An interrupt-driven routine then copied a ...
    Quazar Quazar December 2006 Development
  • Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …

    ... , just the standard 50Hz Frame Interrupt signal, to wait to vsync ...
    Quazar Quazar January 2007 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... top 16k), as does the interrupt routine -- these two things are ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…

    ... other peripherals), Emulation: ZX Spectrum, Interrupt re-triggering (or no re ...
    Tom-Cat Tom-Cat January 2007 Development
  • DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…

    ... other peripherals), Emulation: ZX Spectrum, Interrupt re-triggering (or no re ...
    rwap rwap January 2007 Development
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... that it uses the IM1 interrupt routine for reading the keyboard ...
    glancaster glancaster February 2007 Development
  • The 150 pound home computerWe missing out on this still ... I think. I know the PC market has wrecked all chance for any alternatives to ever have a hope but ... what if. :lol:…

    ... execution speed to the vbi interrupt); however this can only be ...
    Alcoholics Anonymous Alcoholics Anonymous February 2007 Sinclair Miscellaneous
  • The 150 pound home computerWe missing out on this still ... I think. I know the PC market has wrecked all chance for any alternatives to ever have a hope but ... what if. :lol:…

    ... execution speed to the vbi interrupt); however this can only be ...
    JamesD JamesD February 2007 Sinclair Miscellaneous
  • Groundbreaking gamesWhich games really broke new ground? I mean the ones that actually got around the hardware limitations of the Spectrum. For example: Aquaplane - f…

    ... to wait exact moment after interrupt (V-blank) and syncronise border ... anything useful in time between interrupt and border color change - maybe ...
    piters piters February 2007 Games
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... #FDDC instead just before the interrupt table.
    Mr. Anonymous Mr. Anonymous February 2007 Development
  • Anagrams for coffee-break!Any takers for the following anagrams of Spectrum games, as you sip your favoured brew (commas and hyphens for grammar only, not in original title!):…

    ... ... :)[/QUOTE]

    Sorry to interrupt this thread. Am I ok ...
    Daren Daren March 2007 Games
  • Anagrams for coffee-break!Any takers for the following anagrams of Spectrum games, as you sip your favoured brew (commas and hyphens for grammar only, not in original title!):…

    [QUOTE=Daren;175471]Sorry to interrupt this thread. Am I ok to remove the "In Our Time" MP3 now?

    Carry on[/QUOTE]

    Yes, got it now.

    IN OUR TIME == MENU I RIOT :D
    robert@fm robert@fm March 2007 Games
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