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  • Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…

    ... it's quite a messy calculation and that's more work ...
    gasman gasman May 2007 Development
  • How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…

    ... and also calculates / reads the attributes to get the colours?
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Development
  • Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…

    ... 'm not seeing is the calculation of the number loop iterations ...
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Development
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... do not account for the attributes...

    That process is ...
    Zup Zup June 2007 Games
  • Difficult gamesWhich games do you think are difficult to finish? On my opinion, Abu Simbel Profanation: I finished this game with a cracked version with infinite l…

    ... to spill over into the attributes, and only stopped when I ...
    gasman gasman June 2007 Games
  • horizontal shmupsare there any speccy horizontal shmups where you freely move your ship (or whatever) pixel-by-pixel except penetrator? (i?m glad to realize, the lack…

    ... do with this. (The screen attributes are all BRIGHT and as ...
    frobush frobush June 2007 Games
  • What is this for?[url]http://www.zx.cz/mga.php[/url] Any ideas?

    ... this is "hardware multicolor" mode. Attributes start at #6000 and their ... structure. This results in 8x1 attributes (every line has own attr ...
    Sonic Sonic July 2007 Hardware
  • A thought about Top GunI've been playing a bit of Top Gun earlier, and I'm not convinced it should be classed as a vector 3D game, as I'm seeing really nothing that would m…

    ... too much memory, and remember, attributes would not need to be ...
    The Starglider The Starglider July 2007 Games
  • Every pixel different color on spectrum is it possible?I remember reading somewhere about a hardware modification that could make spectrums have 1 different color per pixel.This would make the color clash…

    ... graphics, with the 8*8 attributes.
    MODE 2 was similar ...
    Quazar Quazar July 2007 Hardware
  • Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…

    ... I combine a bit of calculation and increasings.

    I ...
    Dr BEEP Dr BEEP July 2007 Development
  • How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…

    I should add that the routine I just gave only clears the pixels, it doesn't clear the attributes. You'd need to extend the routine if it was necessary to set all the attributes to a particular colour.

    Cheers, Simon
    hldswrth hldswrth July 2007 Development
  • How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…

    ... , it doesn't clear the attributes. You'd need to extend ... necessary to set all the attributes to a particular colour.
    Dr BEEP Dr BEEP July 2007 Development
  • Retroeuskal '07RetroEuskal is an annual event for enthusiasts and interested people about Retrocomputing that is held within [url=http://www.euskalencounter.org/en/…

    ... orientation who rejects many macho attributes often linked to modernity, like ...
    chaosmongers chaosmongers July 2007 Sinclair Miscellaneous
  • Something completely different (new game tech-demo)Since finishing Stranded 2.5 (available soon from Cronosoft - plug!) I've been playing with the idea of doing an attribute-based, rather than pixel-b…

    ... use both bright & normal attributes on the enemies now, which ...
    bobs bobs July 2007 Games
  • Something completely different (new game tech-demo)Since finishing Stranded 2.5 (available soon from Cronosoft - plug!) I've been playing with the idea of doing an attribute-based, rather than pixel-b…

    ... use both bright & normal attributes on the enemies now, which ...
    Graz Graz July 2007 Games
  • Something completely different (new game tech-demo)Since finishing Stranded 2.5 (available soon from Cronosoft - plug!) I've been playing with the idea of doing an attribute-based, rather than pixel-b…

    Great game there Bobs ! (and also frobush :) Love to see new developments on the speccy. It seems its gonna be fabolous year for both ZX and C64 camps in regards to new games.

    about the name... Space Attributes ? :)
    Tom-Cat Tom-Cat July 2007 Games
  • Something completely different (new game tech-demo)Since finishing Stranded 2.5 (available soon from Cronosoft - plug!) I've been playing with the idea of doing an attribute-based, rather than pixel-b…

    ... off by just manipulating the attributes! I really look forward to ...
    Arjun Arjun July 2007 Games
  • Machine CodeHi all, I want to get a machine code/assembler/dissasembler program from the WOS archives. But what in your opinion would be the best to get? I don`t…

    ... the way it sets the attributes to white on blue with ...
    Geoff Geoff July 2007 Sinclair Miscellaneous
  • Retro Fighter shoot-em-up development updateHi all, Some of you might recall I was developing a little shoot-em-up with the working title of Retro-Fighter. Well after a long hiatus I managed …

    ... the scrolling to cope with attributes it becomes a bit messy ...
    dmsmith dmsmith July 2007 Development
  • HTML for beginnersI will be tidying up the first couple of chapters of this course this weekend, so if anyone wants to learn HTML drop me an email and I will forward w…

    ... (as much as possible) presentation attributes. It's weird but now ...
    Lee Fogarty Lee Fogarty July 2007 Chit chat
  • Platform Game Designer 2?I've started tinkering around with some code today and have decided upon a number of handy little features that it would be nice to have. For the li…

    ... I'll leave the background attributes unaffected whenever an item is ...
    jonathan jonathan July 2007 Development
  • Platform Game Designer 2?I've started tinkering around with some code today and have decided upon a number of handy little features that it would be nice to have. For the li…

    ... I'll leave the background attributes unaffected whenever an item is ...
    psj3809 psj3809 July 2007 Development
  • HTML for beginnersI will be tidying up the first couple of chapters of this course this weekend, so if anyone wants to learn HTML drop me an email and I will forward w…

    ... about to be phased out attributes? The whole document seems to ...
    Lee Fogarty Lee Fogarty July 2007 Chit chat
  • Hidden messages whilst loading gamesHi all, Was having a chat with my mate about old speccy games and remembered that pausing the loading on some games and then printing gave strange m…

    ... loading screen and changed the attributes to check if there was ...
    Rickard Rickard July 2007 Games
  • Collision detectionI understand the basic methods for testing for collisions but I have question about the trickier situation of testing for when shots hit the backgrou…

    ... " any original background attributes if required. If attributes cannot be used, set ...
    bobs bobs July 2007 Development
  • Hidden messages whilst loading gamesHi all, Was having a chat with my mate about old speccy games and remembered that pausing the loading on some games and then printing gave strange m…

    ... wasn't loading right, and attributes were messed up, and I ...
    Graz Graz July 2007 Games
  • Collision detectionI understand the basic methods for testing for collisions but I have question about the trickier situation of testing for when shots hit the backgrou…

    ... and fastest to use the Attributes for background collisions (it's ...
    frobush frobush July 2007 Development
  • Collision detectionI understand the basic methods for testing for collisions but I have question about the trickier situation of testing for when shots hit the backgrou…

    ... and fastest to use the Attributes for background collisions (it's ... draw the background with different attributes just for this purpose (collision ...
    dmsmith dmsmith July 2007 Development
  • Help hacking Split PersonalitiesI`ve been hacking away at Split Personalities for the purpose of putting new screens and graphics (items). The current screen is at 41187 and is 160…

    ... data followed by attributes. To see where the attributes start on a ...
    Mr. Anonymous Mr. Anonymous July 2007 Games
  • Help hacking Split PersonalitiesI`ve been hacking away at Split Personalities for the purpose of putting new screens and graphics (items). The current screen is at 41187 and is 160…

    ... tommygun produces the code with attributes following. When I assembled this ... puzzle, it all looks good attributes and all.

    I ...
    FrankT FrankT July 2007 Games
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