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Search Again :: Adv Search 511 results in 0.001s
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  • im looking for a double size, height and width character programi want to be able to stretch and scale up udg's

    ... ,hl ;\
    add hl,hl ; multiply HL by 8
    add ...
    Ast_A_Moore Ast_A_Moore November 2017 Development
  • im looking for a double size, height and width character programi want to be able to stretch and scale up udg's

    ... ,hl ;\
    add hl,hl ; multiply HL by 8
    add ...
    digital digital November 2017 Development
  • Other than using attributes what other ways to detect collisions, when using char based movement?So I'm slowly working out the bits and pieces to write a game completely in assembly. I've been using attributes when writing in BASIC to detect whet…

    ... repeated addition. Use shifts to multiply or divide by 2, 4 ... you want to multiply by 10, for example, multiply by 2 and ...
    joefish joefish November 2017 Development
  • Other than using attributes what other ways to detect collisions, when using char based movement?So I'm slowly working out the bits and pieces to write a game completely in assembly. I've been using attributes when writing in BASIC to detect whet…

    ... a better way to divide/multiply especially when you're talking ...
    ivanb303 ivanb303 November 2017 Development
  • 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…

    ... B,0
    SLA C ; Multiply BC * 2
    RL B ...
    colonel32 colonel32 November 2017 Sinclair Basic
  • Timex Sinclair palette in FUSE?Does FUSE support the Timex Sinclair colour palette? I've tried running appropriate software and rom but the palette stays the same as the Ferranti U…

    ... bright version, you don’t multiply it by a certain amount.
    rga24 rga24 March 2018 Emulators
  • 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…

    ... seed and then divide and multiply to get a random number ...
    CP/M User CP/M User July 2018 Sinclair Miscellaneous
  • Kempston Mouse DriverHi Folks, Does anyone know the email of Chris Cowley who wrote the Kempston Mouse Driver in the WOS Archive? Many thanks Paddy

    ... B,0
    SLA C ; Multiply BC * 2
    RL B ...
    Paddy Coleman Paddy Coleman September 2018 Hardware
  • Getting an even random numberWhat would be the best, simplest way to do this ? I was thinking of say: A = RND*100 Then a conditional along the lines of: IF A / 2 <> I…

    Get a random number which is an integer, then multiply by two.
    arttu arttu November 2018 Sinclair Basic
  • Getting an even random numberWhat would be the best, simplest way to do this ? I was thinking of say: A = RND*100 Then a conditional along the lines of: IF A / 2 <> I…

    ... which is an integer, then multiply by two.[/quote]
    Thanks ...
    spider spider November 2018 Sinclair Basic
  • Getting an even random numberWhat would be the best, simplest way to do this ? I was thinking of say: A = RND*100 Then a conditional along the lines of: IF A / 2 <> I…

    ... shift bits left once (to multiply it by two)

    arttu arttu November 2018 Sinclair Basic
  • Getting an even random numberWhat would be the best, simplest way to do this ? I was thinking of say: A = RND*100 Then a conditional along the lines of: IF A / 2 <> I…

    ... even you just need to multiply it by 2 (a factor ...
    Arjun Arjun November 2018 Sinclair Basic
  • Proportional-width fontsFor reasons that are still not quite clear to me (because I’ve always loved typography and design,) I never bothered to write a proportional-font rou…

    ... code
    add hl,hl ; multiply HL by 8
    add ...
    Ast_A_Moore Ast_A_Moore December 2018 Development
  • Z80, and 6502, in comparisonI was wondering about how each of these compared in terms of performance. The Commodore 64 had a 6502 @ 1MHz, and graphics processor VIC which took …

    ... 180 CPUs include a hardware multiply. That was in my first ... ROMs to use the hardware multiply. In the case of the ... not just the floating point multiply, it's also the trig ...
    JamesD JamesD February 2019 Hardware
  • Did you ever had such a good idea...... that you thought about registering it and developping it for the market? I now have an idea for a new kind of puzzle. The first puzzles creat…

    ... works with marbles and can multiply numbers no higher than 15 ...
    Sokurah Sokurah February 2019 Chit chat
  • Did you ever had such a good idea...... that you thought about registering it and developping it for the market? I now have an idea for a new kind of puzzle. The first puzzles creat…

    ... works with marbles and can multiply numbers no higher than 15 ...
    Dr BEEP Dr BEEP February 2019 Chit chat
  • 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…

    I'd like to see a mul/div-less line clip algorithm. I use the standard outcodes-in-a-byte method here, but that uses one multiply and one divide per outcode. Not a problem on x86, but I'm always looking for optimisations :)
    Dunny Dunny March 2019 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…

    ... look like a 16-bit multiply or divide is going to ...
    joefish joefish March 2019 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…

    ... of a 16-bit divide / multiply method. Though I could go ...
    joefish joefish March 2019 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…

    I suppose one might try taking the mathematical Multiply / Divide method and just reduce the number of bits computed, to reduce the accuracy of the answer. Although that's a bit beyond my thinking at the moment...
    joefish joefish April 2019 Development
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    ... ’s an 8 bit unsigned multiply, some barrel shifts, some 16 ...
    colonel32 colonel32 June 2019 Development
  • Did a Trump really get "Blown Off" by the Danes?How did they do it ? It sounds quite technical . Please discuss

    ... since the 1920s, and then multiply the result by 10 to ...
    harriusherbartio harriusherbartio August 2019 Chit chat
  • Corona Virus,Is is me or is the BBC sensationalizing this corona virus too much and creating hysteria?

    ... 's going to continue and multiply all over the world. Not ...
    Gwyn Gwyn February 2020 Chit chat
  • What to write / programme?I've been trying to get back some motivation to write something in machine code for the Spectrum. I don't feel I am organised enough to write somethi…

    ... ,0
    ADD HL,HL ; multiply by two
    LD DE ...
    dmsmith dmsmith March 2020 Development
  • this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …

    ... $28 ; FPCALC
    defb $04 ; multiply
    defb $38 ; end-calc ...
    dbolli dbolli July 2020 Assembler
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