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Search Again :: Adv Search 1000 results in 0.004s
<1234567…34>
  • Bresenhams circle algorithmI post here my final circle code to replace, if you want, the one in the ROM. It only uses integer math and runs very fast and is very compact. It is…

    ... />

    ;Bresenhams circle algorithm calculates the locations of ... the 8 octants of the circle.



    call circle

    ret

    ;******Circle ******
    circle:

    ld ...
    rtunes rtunes September 2008 Development
  • CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…

    ... 'd like to draw a circle x,y,r using the ... RET.
    I got a circle on the screen but after ...
    HZJ HZJ March 2014 Development
  • Pseudocode for CIRCLE algorithm?Can anyone provide me with the pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge isn't up to reading the ROM routine. I'm try…

    ... pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge ... been using Bresenham's Midpoint Circle algorithm (copied from the web ...
    LevelUp LevelUp February 2020 BASIC
  • CIRCLE Help. Please.Hello. I have been reading the Spectrum Basic programming manual. Chapter 10 - Mathematical Functions - p52 - 53 i am trying to understand circles…

    ... round the circumference of the circle.
    So the manual starts ... /> so they walk round the circle in a right to left ... the 4 points on the circle at 0, pi/2, pi ...
    rholduser rholduser December 2020 Sinclair Basic
  • Gary Kasparov on Ukraine CrisisI was talking about Ukraine in another thread, but I posted it in the wrong forum, so I thought I'd start another one. I found his take on the Ukr…

    ... his take on the Ukraine Crisis interesting, what do you think ...
    dmsmith dmsmith February 2022 Chit chat
  • Ukraine CrisisThe other thread got a bit muddled and I wanted to start one on more recent, hopeful (even if only slightly) developments. https://www.reuters.com…

    ... someone else's words. This Crisis will need to be resolved ...
    dmsmith dmsmith April 2022 Chit chat
  • Cost of Living CrisisThere's a cost of living crisis going on. Fuel, gas, food. fags, you name it, it's on the up. Wages and benefits stagnant. One needs a mortgage for a…

    ... 's a cost of living crisis going on. Fuel, gas, food ...
    Ælita Ælita May 2022 Chit chat
  • i am currently listening to........as i couldnt seem to find the old one, i didnt look that hard :P ive started a new one right after somebody asked me for some slayer ive rediscovere…

    ... Da House
    Belinda Carlisle - Circle In The Sand
    Belinda ... Carlisle - Circle In The Sand [Beach Party ... To Break
    China Crisis - Christian
    China Crisis - Wishful Thinking
    ASM ASM November 2010 Chit chat
  • Games Becoming Retro....(or 10 Years Old)...After fighting my insomnia looking for games that were 25 years old on the Speccy this morning and feeling old (see Games chat), I got to wondering w…

    ... /> Sonic Adventure 2
    Castlevania - Circle Of The Moon
    Super ...
    Operation Flashpoint : Cold War Crisis
    Gran Turismo 3
    deadpan666 deadpan666 January 2011 Chit chat
  • Similar to Scotties thread......I too am suffering with severe bouts of depression (not diagnosed, I just feel really down sometimes). I haven't finished a big project or anythi…

    ... tend to enter the vicious circle of overanalyzing small errors). But ... advertised a job (before the crisis, in 2007 I think) we ...
    Winston Winston February 2011 Chit chat
  • Latin-1 font for FZXI'm currently creating some [URL="http://en.wikipedia.org/wiki/Latin-1"]Latin-1[/URL] (ISO 8859-1) characters to be added into [URL="http://www.world…

    ... about the ? character. Maybe the circle needs to be a little ... [/IMG]

    The square circle (uh... I don't know ... Arial font.

    [QUOTE=Crisis;774800]the (c) sign is ...
    TK90XFan TK90XFan June 2014 Development
  • Songs from the 80'saren't they good.

    ... liked The Lotus Eaters, China Crisis, B-Movie, OMD, Talk Talk ... Fair Control, The Twins, Silent Circle..The Flirts OMG, Dutch Sam ...
    Ælita Ælita August 2016 Chit chat
  • Songs from the 80'saren't they good.

    ... liked The Lotus Eaters, China Crisis, B-Movie, OMD, Talk Talk ... Fair Control, The Twins, Silent Circle..The Flirts OMG, Dutch Sam ...
    grey key grey key August 2016 Chit chat
  • Songs from the 80'saren't they good.

    ... liked The Lotus Eaters, China Crisis, B-Movie, OMD, Talk Talk ... Fair Control, The Twins, Silent Circle..The Flirts OMG, Dutch Sam ...
    Scottie_uk Scottie_uk August 2016 Chit chat
  • PAPER&INK: screen/character differenciation?So I was looking at a type-in listing earlier and I got to wondering how the Spectrum differenciates between knowing that the PAPER/INK commands need…

    [quote="Crisis;956160"]what is the techincal format off the Arc value?
    [/quote]

    It should be the angle in radians. 0.5 * PI would give you a quarter circle.
    JianYang JianYang September 2019 Sinclair Basic
  • (Fixing) The Swordsman of Kraxis 7The Swordsman of Kraxis 7 ([url="https://worldofspectrum.org/software?id=0013314"]link[/url]) is an arcade adventure, from a type-in book (in BASIC).…

    Yes, the use of FGH is covered in the instructions, inside the book. I'd like to type in the instructions and the story too, but it's just a lot of text for now.

    Anyway, let me just post a fixed version here (I might fix more of it, but ...
    Timmy Timmy March 2021 Sinclair Basic
  • Scientists puzzled by "Dark Matter" maphttps://www.bbc.co.uk/news/science-environment-57244708 I have to admit this is a bit over my head - however it is interesting and it has the scie…

    ... no start and no end = Circle or a line without a ... of infinities.

    [quote="Crisis;977249"]The strange part is ... every line is always a circle from unknown aka infinite wide ...
    Bloppinius_Blarp Bloppinius_Blarp June 2021 Chit chat
  • How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…

    [quote="Crisis;992784"]oops, to fast, you ...
    ;draw_ equ 0x24ba
    ;circle equ 0x232d
    ;arc equ ...
    Kotek Kotek June 2022 Development
  • How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…

    Crisis' code worked for me when ...
    ;draw_ equ 0x24ba
    ;circle equ 0x232d
    ;arc equ ... ]https://i.postimg.cc/pVmXwXvL/Crisis.png[/img][/url]

    Crisis mentioned an issue earlier. I ...
    Paradigm Shifter Paradigm Shifter June 2022 Development
  • The Your Sinclair Rock'n'Roll Years TV ShowComing soon... by the end of 2003... Way back in 1997, I put together the Your Sinclair Rock'n'Roll Years. The idea was a simple one, inspired by th…

    ... 's time to come full circle and do what the BBC ...
    NickH NickH February 2003 Announcements
  • Elite - %@$(*!$!*(%! dockingAllright, all you die-hard Elite veterans out there, a neophyte needs your help ! I know the age-old 'trick' for docking is to run up near the stati…

    ... .... However, instead of the welcoming circle effect, the door disappears and ...
    GOC GOC December 2003 Games
  • zx elite missionsHi all, I am big fan of original elite and love zx version too much because it was forst elite i played. I actualy own ZX 128k and c64 original pack…

    ... in 128k version where caution circle indicator have small graphics error ...
    tomas tomas January 2004 Games
  • colouring inexample: 10 CIRCLE 45,30,15 wot do i type after it to colour it in red?

    example: 10 CIRCLE 45,30,15
    wot do i type after it to colour it in red?
    grim grim February 2004 Development
  • ANN: Tipshop updated Monday, 14 June 2004Monday 14 June 2004 Lots of good stuff, and a plea for help! * I've been daft enough to attempt to find aliases for as many of the Load 'n' Run / S…

    ... and a map for Magic Circle, The.
    Thanks to Martijn ...
    hackersanon hackersanon June 2004 Announcements
<1234567…34>

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  • Bresenhams circle algorithmI post here my final circle code to replace, if you want, the one in the ROM.<br /> It only uses integer math and runs very fast and is very compact.…
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  • CIRCLEHi, <br /> I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET…
  • Pseudocode for CIRCLE algorithm?Can anyone provide me with the pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge isn't up to reading the ROM routine. I'm try…
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