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<1…18192021222324…34>
  • Does Screen Flipping work on a 48k Spectrum?On the other post it showed some basic code to flip the screen on a +3. Does it work on a 48k Spectrum. Can anyone show me the machine code to: Se…

    ... 'length of screen
    LOOP LD A,(DE) 'fetch value ... OR C
    JR NZ,LOOP
    RET
    [/code]< ... OR C
    JR NZ,LOOP
    can also be changed ... in just
    JP PE,LOOP
    or
    JP ... PO,LOOP

    I don ...
    Dr BEEP Dr BEEP May 2004 Development
  • Hey Hey 16kQuite possably the BEST thing Rob Manuel (b3ta.com) has ever done - awesome, fantastic, bloody marvelous... [url="http://www2.b3ta.com/heyhey16k/"]h…

    ... don't gosub a program loop, you'll never get a ...
    MattLamb MattLamb May 2004 Sinclair Miscellaneous
  • 16k/48k Sound FXI am now moving on from graphiocs to trying to build up a library of sound fx to be used with a 16k/48k Spectrum. Does anyone have any example m/cod…

    ... formatted code, allowing for a loop for length, and instructions of ...
    robpearmain robpearmain May 2004 Development
  • URIDIUMDoes anyone actually like the Spectrum version of this game? Or was it some sinister plot to make the Spectrum look silly trying to compete with the…

    ... it of course started to loop through the levels again, if ...
    SpecMem SpecMem May 2004 Games
  • COVOX works?My Sprinter "simulates" a COVOX soundcard at port 4Fh, but I don't know how to use it! Can anyone explain to me the process of programming it? (To be…

    ... usr 0 mode. The main loop of 128 Basic insists on ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Development
  • It's a waiting game.Right, so here you are. Right now. You've got your Spectrum and, hell, you want some new games to play. Brand new games. Sod your GameCubes, your PS2…

    I'd like a game titled "Amazing Puddings From Outer Space" - and I hope somebody will program it soon.
    WhenIWasCruel WhenIWasCruel May 2004 Games
  • Red Dwarf....Does anyone know, what year was Red Dwarf first broadcast by the BBC? How many years, before or after the last of the mainstream commercial Spectrum…

    ... don't gosub a program loop, you'll never get a ...
    MattLamb MattLamb June 2004 Sinclair Miscellaneous
  • When Speccy Limitations an AdvantageHi, just came to think that sometimes the technical limitations of Spectrum have resulted in a better game. Take for example the scrolling of Scuba …

    ... ) is within a FOR NEXT loop say, n is 7 to ...
    Sadako Sadako June 2004 Games
  • Best Speccy BargainsWhat was your best Speccy related bargain you've ever got? Mine was my first Speccy in 94/95. I was looking over my local car boot sale when I saw a…

    ... and inserts and manuals (no outer cardboard box though), along with ...
    caffeinekid caffeinekid July 2004 Games
  • Finishing my Ragnar game...Hi all, Way back then, in my youth, I worked on a game for the Speccy called "Ragnar", which was a 3d isometric style mcoded game written from scrat…

    ... to create the main game loop,[/quote]

    Assembler is ...
    cyborg cyborg July 2004 Development
  • Finishing my Ragnar game...Hi all, Way back then, in my youth, I worked on a game for the Speccy called "Ragnar", which was a 3d isometric style mcoded game written from scrat…

    ... were decreased for each game loop - when a counter reached ... 't I design this game loop taking timing into consideration, both ... subroutines being called and another loop could result in all being ... .e shouldn't I time loop execution and pause accordingly)? ( ...
    ekoman ekoman July 2004 Development
  • Finishing my Ragnar game...Hi all, Way back then, in my youth, I worked on a game for the Speccy called "Ragnar", which was a 3d isometric style mcoded game written from scrat…

    ... to design the main game loop taking the frame interrupt in ... 't I design this game loop taking timing into consideration, both ... subroutines being called and another loop could result in all being ... .e shouldn't I time loop execution and pause accordingly)?[/quote ...
    cyborg cyborg July 2004 Development
  • MC 101Hello Group Members: Can't spectrum MC be embedded in a BASIC program

    ... formatted code, allowing for a loop for length, and
    ;instructions ...
    dalmudlee dalmudlee July 2004 Development
  • Game loop design?Having some thoughts on how to design the game loop and could do with some hints and tips from folks who have done it before! It's all about how to …

    ... that contains your main game loop - it is here that keyboard ...
    cyborg cyborg July 2004 Development
  • Collision DetectionHi everyone, This is my first post on WOS. Like most people here I owned a Spectrum when a teenager. At that time I was quite heavily into programmin…

    ... as quick as possible (no loop overheads) and updating the screen ...
    dmsmith dmsmith July 2004 Development
  • Collision DetectionHi everyone, This is my first post on WOS. Like most people here I owned a Spectrum when a teenager. At that time I was quite heavily into programmin…

    ... /> POP BC
    DJNZ CDLOOP ;Loop back and check again
    dmsmith dmsmith August 2004 Development
  • lambourne cricket gamesI am a recent convert to retro games and the zx emulators. I remember playing a cricket game which is the lambourne games cricket 1991 but when I run…

    spin anf klive boith work better than the zx32 but still seems to loop. I seem to remeber that te original instructions asked for you to tyep in a line of code

    thansk for your help
    pete1314 pete1314 August 2004 Games
  • Strange layout of Spectrum video memoryHello, does anyone have an idea why the Spectrum's video memory has such a strange layout? I understand that a resolution of 256x192 is an easy mean…

    ...
    LD B,8
    LOOP LD (HL),A
    INC ...
    INH H
    DJNZ LOOP
    RET
    [/code]
    Dr BEEP Dr BEEP August 2004 Sinclair Miscellaneous
  • need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …

    ... for 16x16 sprites I only loop twice, every 8 lines.
    dmsmith dmsmith August 2004 Development
  • need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …

    ... bit of code inside your loop - saves 27 tstates per line ...
    dmsmith dmsmith August 2004 Development
  • need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …

    ... bit of code inside your loop - saves 27 tstates per line ...
    moroz1999 moroz1999 August 2004 Development
  • need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …

    ... IXH,A ;IXh is the loop counter
    LD A,(SPRXLEN ... to do this outside main loop)
    LD (DRAWSPY2+2),A ... of the routine is a loop
    LD L,C ;for ...
    dmsmith dmsmith August 2004 Development
  • need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …

    ... ,... 7x10t+1x10t=80t...

    loop for drawing mid part of ...
    Fikee Fikee August 2004 Development
  • Chuckie Egg 2 helpCan anyone help me with Chuckie Egg 2? I've filled up the Milk, Cocoa, & Sugar vats, and have make the motorbike toy and picked it up. But what do …

    Leaving it to loop is just cruel, and not in a good way ;)
    Arcane Design Arcane Design August 2004 Games
  • need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …

    ... /> LD IXH,A ; IXH is loop counter for height of sprite ...
    dmsmith dmsmith August 2004 Development
  • Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …

    ... :
    ld hl, 16384
    loop:
    ld a, (hl)
    jr z, loop
    jr repeat

    Erlstoned Erlstoned August 2004 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ...
    LD B,TOTALSPRITES ; And loop for the total number of ...
    robpearmain robpearmain August 2004 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ...
    LD B,TOTALSPRITES ; And loop for the total number of ...
    robpearmain robpearmain August 2004 Development
  • Splat!how many levels does it feckin' have? ive been playing it and saving snapshots after every level, so far ive done 1-7 then the level stays on 7 but …

    ... on (a sort of reverse loop?) to improve score, but it ...
    jil jil August 2004 Games
<1…18192021222324…34>

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