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  • How can I make a UDG rotate?I designed a set of UDG's that can be used for making shapes or letters. Trouble is that my circle - for example - consists of 4 pieces and it would…

    ... it goes in an endless loop. But... you should still be ... USR 60000 doesn't return until you click either mouse button ... . If it's not zero, loop back for more shiftinG
    loop
    JR draw_ptr_loop

    colonel32 colonel32 November 2017 Sinclair Basic
  • Is it not possible to play music whilst playing a game on the 48k Spectrum?I know it can play some sort of weak beep music whilst playing a game (Kung Fu Master or Manic Miner for example) but why isn't it possible to actual…

    ... at the end of each loop of the copy routine it ... whatever time was left over until the next TV picture refresh ...
    joefish joefish November 2017 Games
  • Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…

    ... a ;reset Carry + avoid infinite loop
    ret z ;if 0 ... ;set counter to 9
    loop dec b ;decrement counter
    jr nc,loop ;until we get to the first ...
    djnz loop2 ;until we’ve completed the loop + 1 position
    Ast_A_Moore Ast_A_Moore December 2017 Development
  • New Game: Grumpy SantaI have been trying to write a festive game for years, so this year I challenged myself to write a game in 2 days. It took a little longer, and I mana…

    ... /> ENDIF

    In Main Loop:
    IF O = 1
    ENDIF

    (...until...)

    IF O = 44 ...
    Jaime_Grilo Jaime_Grilo December 2017 Brand new software
  • Summary : Fifty Pascal Programs by SybexI got around getting [url="http://www.worldofspectrum.org/infoseekid.cgi?id=2001037"]this book[/url] and have had a look through it which consists of…

    ... about using random; in a loop which doesn't contain Input ... generate the seed outside the loop and modifying my rand(num ... ); loop so maxint isn't diving ... ='y') THEN instructions;
    550 UNTIL (response=chr(13)) OR (response ...
    CP/M User CP/M User July 2018 Sinclair Miscellaneous
  • Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…

    ... of the action is delayed until the first uncontended T state ... OUTs in a beeper sound loop are timed with intervals that ...
    Hikaru Hikaru July 2018 Assembler
  • Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…

    ... overall duration of the sound loop, are multiples of 8. ... 8T-aligned sound loop. Let's say the loop is entered while ... subsequent iterations and frames until the sound loop exits. In other words ... contention just once per each loop entry, which I suppose cannot ...
    Hikaru Hikaru July 2018 Assembler
  • Reading DEFB for backgroundsHi all I suppose the question is kind of silly but I'm a completely newbie with assembler :-S I'm drawing some side backgrounds with ZX Paintbrus…

    ... , 0, 0, 0

    ... until y = 184
    [/code]

    ... until last DEFB (I suppose it ... to change..
    [code]
    loop: ld b,8 ; width of ... sprite in characters -> to loop: ld b,9

    oblo oblo December 2018 Assembler
  • Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…

    ... holding onto the screen byte until the loop either reaches the end ...
    joefish joefish March 2019 Development
  • AugmentinelEnhanced Spectrum emulation isn't a new concept. Spec256 adds 8bpp graphics to some Spectrum titles. TileMap uses code hooks to synchronise game stat…

    ... nc,ad52679 ;;; this is a LOOP until an interupt breaks through??? or ...
    obo obo April 2019 Emulators
  • I'm such a messPeople may notice i haven't been posting lately, the reason is i'm not very good at the moment. I'm an emotional mess. I've been best friends with …

    ... it threw me for a loop was putting it mildly but ... />
    'Threw me for a loop'? You have no idea how ... other and then tapered down until you're clean and it ... 't ask for any money until I got back on my ...
    mik3d3nch mik3d3nch October 2019 Chit chat
  • How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…

    ... ) and then sit in a loop sleeping for whatever remains of ... samples, sit twiddling your thumbs until the buffer starts to play ...
    Dunny Dunny October 2019 Development
  • The Legacy of the White Crane - Ishido 2Hello! I would like to introduce the second part of my 2015 game, The Legacy of the White Crane. New part - new features: a taoist monk, Dalgon, wh…

    ... by the bright-switching border-loop , if it would possible to ... ), and press the '4' button until the 'border flash 0'
    mzx mzx March 2020 Brand new software
  • Have you got a project or are doing anything interesting during lock down?I’m “having” “fun” cutting shapes in wall tiles to fit around the electrical switches, sockets and heating/boiler control box in the utility room. …

    ... start to program for ages until I have got to grips ... high above the main program loop, refer to this now come ...
    mik3d3nch mik3d3nch April 2020 Chit chat
  • Randomised data samplingHere is something that could be written in BASIC, if anyone is interested. Lets say we want to sample a subset of a larger population, we can do t…

    ... = E)
    * Repeat Loop UNTIL P = 0:
    Loop * R = random +ve integer ... range 1 to P
    Loop * S = selected element A(R ... );
    Loop * A(R) = A(P); A ...
    Battle Bunny Battle Bunny April 2020 Sinclair Basic
  • Randomised data samplingHere is something that could be written in BASIC, if anyone is interested. Lets say we want to sample a subset of a larger population, we can do t…

    ... = E)
    * Repeat Loop UNTIL P = 0:
    Loop * R = random +ve integer ... range 1 to P
    Loop * S = selected element A(R ... );
    Loop * A(R) = A(P); A ... if I just run a loop for the number of samples ...
    dmsmith dmsmith April 2020 Sinclair Basic
  • New DBOk, time to clear this up. After god knows how many pages of discussions, nobody from ZXDB has contacted me at all. Firstly, there will never be a…

    ... .wikipedia.org/wiki/Time_loop"]time loop[/url].

    First of ... ready and providing new excuses, until I finally gave up in ...
    Einar Saukas Einar Saukas July 2020 Updates
  • Microdrive logic flow.Hi all, I've finally gotten my hands on an Interface 1 and Microdrive to continue my project, and have been analyzing the Microdrive with a logic …

    ... simulated a two track audio loop with some timing and r ... they fill the shift register until it's full of 1 ...
    cj7hawk cj7hawk February 2021 Hardware
  • 128K refurb.... What is the best way?Here's the latest Spectrum I got... Finally got a Toastrack... Not sure if it was good value ( around US$100 ). [img]https://os.blackice.com.au/us…

    ... test and hitting the infinite loop.

    I've desoldered ... do next, so will wait until I can get an eprom ... further. More than an infinite loop is going to tell me ... /> I'm going to wait until my eraser comes and try ...
    cj7hawk cj7hawk March 2021 Hardware
  • Microdrive logic flow.Hi all, I've finally gotten my hands on an Interface 1 and Microdrive to continue my project, and have been analyzing the Microdrive with a logic …

    ... to my first experiments, time until File not found error is ... even goes into an infinite loop. So, big question is, based ...
    xelalex xelalex March 2021 Hardware
  • Who's NEXT?How about having a category just for Spectrum NEXT owners? I got mine on Monday, its the original issue, plain jane and quite enough for me to ge…

    ... up by holding down U until you see the updater come ... 50Hz, VGA-6 60Hz and loop around. You can press N ...
    Alcoholics Anonymous Alcoholics Anonymous September 2021 Sinclair Miscellaneous
  • ShortagesWhile there are some more serious shortages in the UK (eg. of fuel due to panic buying), some of the following seem very inconsequential to mention: …

    ... ‘self-reinforcing feedback loop’. Well, at least until something breaks it, all ...
    1024MAK 1024MAK September 2021 Chit chat
  • ShortagesWhile there are some more serious shortages in the UK (eg. of fuel due to panic buying), some of the following seem very inconsequential to mention: …

    ... ‘self-reinforcing feedback loop’. Well, at least until something breaks it, all ...
    dmsmith dmsmith September 2021 Chit chat
  • Corona Virus,Is is me or is the BBC sensationalizing this corona virus too much and creating hysteria?

    ... next to no important detail until hours afterwards. But they kept ... then they should shut up until they know more!!

    loop until some more recent development comes ...
    dmsmith dmsmith October 2021 Chit chat
<1…15161718192021…34>

Latest Posts

  • I am currently watching.....
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    John Elliott on April 21
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    mel the bell on April 20

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