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Search Again :: Adv Search 709 results in 0.001s
<1234567…24>
  • Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …

    ... ];now draw the line
    ;Bresenham line drawing algorithm poorly implemented ...
    Jimmy Jimmy August 2008 Development
  • AssemblersProbably asked a question that's been asked a million times before... but... I've decided to do a bit of old Speccy machine coding again, after 20 y…

    ... draw lines using the Bresenham algorithm, and for circles, curves, etc. use ...
    GOC GOC August 2003 Development
  • Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …

    ... did compare it with the Bresenham algorithm and while that always ... when the author discovered that circles with sides divisible by four ...
    Geoff Geoff August 2008 Development
  • display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…

    ... times as long.

    Bresenham's too slow as well ... -point version takes 10" whereas Bresenham takes 45", but that's ... which aren't relevant for circles.

    It's not ...
    Battle Bunny Battle Bunny October 2013 Sinclair Basic
  • 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…

    ... />
    I wrote a Bresenham circle routine once which was ... uses the ROM CRGRE1 for circles
    with small radiuses ... /> DRAWBRESCIRCLE equ $
    ; Draw a Bresenham circle at oX,oY radius ... circle routine
    ; for circles with radius < 35 pixels ...
    dbolli dbolli April 2014 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…

    ... dbolli;761618]I wrote a Bresenham circle routine once which was ... .globalnet.co.uk/~jg27paw4/pourri/bresenham-fpcalc.asm[/url]
    < ... .globalnet.co.uk/~jg27paw4/pourri/bresenham-24small.asm[/url]
    < ... latter version does the 100 circles test in 9.2 seconds ...
    Battle Bunny Battle Bunny April 2014 Development
  • 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…

    ... here's one for a Bresenham circle as well

    DRAWBRESCIRCLE equ $
    ; Draw a Bresenham circle at oX,oY radius ... routine circle routine
    ; for circles with radius < 20 pixels ...
    dbolli dbolli March 2019 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…

    Bresenham circle is the way to ... /> DRAWBRESCIRCLE equ $
    ; Draw a Bresenham circle at oX,oY radius ... routine circle routine
    ; for circles with radius < 20 pixels ...
    dbolli dbolli August 2020 BASIC
  • Spectrum vs Vic 20 - cast your vote (please!)As I mentioned earlier this week, the Spectrum goes head to head with the Commodore Vic 20 in this week's round of the Micro Mart 'computer world cup…

    ... we'll go round in circles forever. Ok, so
    the ...
    woodcock88 woodcock88 January 2003 Sinclair Miscellaneous
  • The PlanetsCan someone please help me. About 16 years ago I bought The Planets by Martech for my Spectrum +. I spent hours and hours trying to work out how to …

    ... . I also went round in circles trying to work out how ...
    fosterp fosterp January 2003 Games
  • Zaf-forth to Z80 compiler Build 5This forth like complier is changing almost every day with new items been added. Here is a new Zaf-forth word add it the sptword.fth file - which is…

    ... /> ;"Circle-Demo"
    ;"Draws 30 circles to the screen"
    ;"random ...
    Steve(spt) Steve(spt) October 2004 Development
  • JOHN TYNDALL R.I.PYEEEEEEEEEES Im so fucking happy :) *runs round the room in circles*

    YEEEEEEEEEES

    Im so fucking happy :)

    *runs round the room in circles*
    mel the bell mel the bell July 2005 Chit chat
  • Name that game number 23,843,342 in a seriesHello! Name this game please, so I can play it later. OK, I'm not sure if you could select your screen colours but as far as I remember it by default…

    ... enemies represented by chains of circles.
    The language options had ...
    Vertigo Vertigo October 2005 Games
  • how do I tune the speccy to tv?hello folks :) I am come here for help rather than because I am still a speccy person. I did start with the ZX, many moons ago,had a couple of thos…

    ... writer, well-known in Christian circles, and she does not want ...
    pawz pawz February 2006 Sinclair Miscellaneous
  • the plot(firebird)hello i have been trying to make a map of this game,but i cannot find the final screens.could somebody please try and help me(i am going round in ci…

    ... (i am going round in circles!!!).i have managed to get ...
    ladderman ladderman March 2006 Games
  • emag eht emaNIt `s been so long since we had such topic :P Does any one know the name of the game that i m looking? You are in the maze of some sort.The backgroun…

    ... something like a big white circles.I really cannot remember anything ...
    devilkin devilkin April 2006 Games
  • the house that jack builthello i am trying to map this game but so far i have onlly managed 17 screens and i am going round in circles.i have been to the moon,maze,garden an…

    hello

    i am trying to map this game but so far i have onlly managed 17 screens and i am going round in circles.i have been to the moon,maze,garden and most of the house.can anybody help me.thank you

    colin
    ladderman ladderman October 2006 Games
  • House that Jack BuiltRe-reading some old threads on here about the Thor/Odin lines and the problems with Paul Mckenna etc it prompted me to dig out my old copies of House…

    ... still just go around in circles loking what to do next ...
    aktiv8 aktiv8 July 2007 Games
  • Circular ThinkingJust had the hardest A-level maths night class since I started A-level maths at the start of September - on circles, of all things. My brain feels l…

    ... the start of September - on circles, of all things.


    Never realised circles could be so complicated.
    BigBadMick BigBadMick October 2007 Chit chat
  • Stupid advertsThat advert for Doctor Kawashima's Brain Training on TV at the minute. Do people really believe that Nicole Kidman has nothing better to do than sit…

    ... guys chin and radiating blue circles as it moves along. Is ...
    BigBadMick BigBadMick October 2007 Chit chat
  • Retro-X Alpha availableChanges from WIP 7 (Alpha 3) to Alpha 4 ( 1.5.08 - 14.5.08 ). Requested by and help by - in brackets. Bugfixes: * Viewer: o File list not displaye…

    ... Filled Boxes, Rounded boxes and Circles improved (faster, and more flexible ...
    LCD LCD April 2008 Development
  • GRIM REAPER - When you die, will you post a message from the grave?I'm thinking of writing my will soon. It occurred to me, I move in a lot of online circles, as THX1138, but not many people know Mark Brown, tbh - …

    ... in a lot of online circles, as THX1138, but not many ...
    thx1138 thx1138 July 2008 Chit chat
  • Your favourite Half-Life game?Right, I've posted a few polls up today, and I've had so many pm's (nearly one, so far) from people saying how much they liked them, and asking for m…

    ... stuck or wandering around in circles, but the trouble with linear ...
    ewgf ewgf December 2008 Chit chat
  • ZX-Paintbrush new functionsDear folks, I want to tell you some news I'm just now implementing into ZX-Paintbrush. On the other hand: the more new functions I want for the next…

    ... can draw lines drawn with circles
    [/LIST]or squares.
    clausjahn clausjahn January 2009 Announcements
  • Your views on zig zagI used to love it for the odd half hour, but could end up chasing the little critters in circles for ages... Did anyone every finish it? And what do…

    I used to love it for the odd half hour, but could end up chasing the little critters in circles for ages...

    Did anyone every finish it? And what do you all make of it?
    mickmog mickmog May 2009 Games
  • Sinclair Spectrum on BBC4 (TV) IDENTBBC4 are launching a new IT Season of programs of which part of this is the program "Micro Men". To advertise this season they have a series of iden…

    ... it. The gadgets in the circles roate in oposing directions whilst ...
    Scottie_uk Scottie_uk September 2009 Sinclair Miscellaneous
  • TommyGunHi There, Any one know of the situation regarding TommyGun at the moment? I was following a forum thread with interest on one of the MSX sites ([ur…

    ... interest in TI-99/4A circles re TommyGun.

    Regards ...
    Mark Wills Mark Wills October 2009 Emulators
  • So what Speccy games are you actually playing at the min?I know this isn't the first ever thread like this but I figured I'd start it for a laugh. Since I'm not really working on anything at the mo' for th…

    ... and started going round in circles I attempted to translate the ...
    dm_boozefreek dm_boozefreek January 2010 Games
  • Graphics problemHi guys. Finally got a REAL zx spectrum, cost ?20 from a friend. When i draw plots and circles, it takes time to do it, but how do i do it instantly…

    Hi guys.

    Finally got a REAL zx spectrum, cost ?20 from a friend. When i draw plots and circles, it takes time to do it, but how do i do it instantly? like games.

    Thanks!
    Robin Robin February 2010 Sinclair Basic
  • Anyone interested in any of this before it goes on eBayI'm having a clearout, and am going to put this lot on ebay tonight. But as its basically my childhood I'm selling I thought I'd check here and see i…

    ... you to draw lines, boxes, circles and freehand on your TV ...
    teamemark teamemark June 2010 Sales
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