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<1234567…34>
  • There's a bug in my Speccy, Dear Liza, Dear Liza...Hi guys, Just me being annoying again - Can anyone out there in 'Internetland' help me with ideas about what could be causing a bug in my Speccy em…

    ... , then the problems start. Line numbers are OK, but as soon ... on seem fine, even with negative numbers, and all the (IY + D ...
    Speculator Speculator December 2004 Development
  • Assembler code from tutorial, problem!I was wondering if anyone could help me decipher this z80 assembler code? ORG 60000 LOAD 60000 EA60 21BCEA LD …

    ... is a random collection of numbers at NUMBRS, say 1,5 ... I'll hazard the following: Negative numbers may have something to do ...
    Arjun Arjun August 2001 Sinclair Miscellaneous
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    ... and 8 bits, only the numbers -127 to +127 can be ... . If you want to handle negative numbers as well, it can be ...
    Dr BEEP Dr BEEP September 2004 Development
  • Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…

    ... the difference between the two numbers is greater than 7 ... ZERO result.

    However, negative numbers, I think, are causing me ... t work, because of how negative numbers are represented (-4=1111 1100 ... a way of converting a negative number to its absolute ...
    48K 48K August 2006 Development
  • Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…

    ... ZERO result.

    However, negative numbers, I think, are causing me ... t work, because of how negative numbers are represented (-4=1111 1100 ... a way of converting a negative number to its absolute ... to recognize if number is negative or just above 127.< ...
    Fikee Fikee August 2006 Development
  • Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […

    ... names longer than a letter, negative numbers, + operator to concatenate strings, one ...
    NotFound NotFound January 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... /> PRINT AT also works with negative numbers, so ABS is not needed ...
    Dr BEEP Dr BEEP July 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... expense of losing all negative numbers) which is just too ... the same functionality for long numbers.

    ...
    u_binomial() generates random numbers that are binomially distributed. This ... to generate uniformly distributed numbers from 0..RANDMAX (0 ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... the array, I dispensed with negative numbers altogether , and instead now represent ...
    Digital Prawn Digital Prawn September 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... error whilst trying exponentiation of negative numbers, which is due to the ...
    Digital Prawn Digital Prawn October 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... error whilst trying exponentiation of negative numbers, which is due to the ...
    Einar Saukas Einar Saukas October 2007 Development
  • New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…

    ... indicate FLASH, you can use negative numbers -p.
    Einar Saukas Einar Saukas February 2008 Development
  • New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…

    ... indicate FLASH, you can use negative numbers -p.[/QUOTE]

    Yes ...
    Digital Prawn Digital Prawn February 2008 Development
  • Best way to store vector images in Sinclair BASIC?Let's forget for a moment that Sinclair BASIC is slow. If I have a picture made entirely of vector images, what would be the best way to store that d…

    ... do you go about storing negative numbers in memory if you're ... as indicator of positive or negative displacement?
    zxbruno zxbruno May 2009 Sinclair Basic
  • Best way to store vector images in Sinclair BASIC?Let's forget for a moment that Sinclair BASIC is slow. If I have a picture made entirely of vector images, what would be the best way to store that d…

    ... do you go about storing negative numbers in memory if you're ... as indicator of positive or negative displacement?[/QUOTE]

    If ...
    Dunny Dunny May 2009 Sinclair Basic
  • Best way to store vector images in Sinclair BASIC?Let's forget for a moment that Sinclair BASIC is slow. If I have a picture made entirely of vector images, what would be the best way to store that d…

    ... do you go about storing negative numbers in memory if you're ... as indicator of positive or negative displacement?[/QUOTE]

    the ...
    Fikee Fikee May 2009 Sinclair Basic
  • Jokes (not corny or sick)A drunken man staggers in to a Catholic church, sits down in a confessional box and says nothing. The bewildered priest coughs to attract his attent…

    Dad teaches his son negative numbers :
    - In a bus there are 4 passengers. 6 passengers get out, how many passengers have to get in to bus was empty ?
    bohusk bohusk August 2009 Chit chat
  • Jokes (not corny or sick)A drunken man staggers in to a Catholic church, sits down in a confessional box and says nothing. The bewildered priest coughs to attract his attent…

    ... ;378656]Dad teaches his son negative numbers :
    - In a bus there ...
    ZnorXman ZnorXman August 2009 Chit chat
  • Req' Help with Random numbersHello all, im new to the forum, i hope im putting this in the right place ... I would like to ask a question in the hope someone will be able to as…

    ... I input a string of numbers and program it so the ... rounding errors creep in
    [*] negative numbers require a modified version of ...
    BloodBaz BloodBaz November 2009 Sinclair Basic
  • MOD calculator function?How do I for example, do LET a=(MOD n,9). I can do it a long winded way using cross-addition until the answer is a single digit. So 13763 MOD 9 wou…

    ... the function to print FP numbers and both results were required ... storage location would have allowed negative numbers to be used.

    Geoff Geoff January 2010 Sinclair Basic
  • Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …

    ...
    ; This avoids messing with negative numbers while storing data

    kgmcneil kgmcneil June 2010 Announcements
  • Machine code issue...Hi Folks, My trials with MCODE continue and I am stuck. I wrote the following program in BASIC to simply POKE an attribute byte in to a "box" on th…

    ... 't preserve the sign for negative numbers. I suppose you can do ...
    Matt_B Matt_B September 2010 Sinclair Basic
  • Simultaneous key presses in BASICIs there a way to check for 2 simultaneous key presses in BASIC? I use if inkey$="z" then goto... but that only lets me check for 1 key press at a…

    ... the keyboard bits, although with negative numbers shown.
    10 PRINT AT ...
    FrankT FrankT September 2010 Sinclair Basic
  • Help :) (FLAGS)ok a question about the 8080 so if anybody can help me. do the flags only change for the accumulator or are they affected for the other registers a…

    ... the 'usual' way) correspond to negative numbers: 255 = -1, 254 = -2 and ...
    gasman gasman November 2010 Sinclair Miscellaneous
  • Corny Joke Thread No1 (had enough of sick jokes)[SIZE="4"][B]Q:[/B] How did Bob Marley like his doughnuts?[/SIZE] [SIZE="4"][B]A:[/B]Wi Jam in!![/SIZE]

    ... />
    Chuck Norris can logarithm negative numbers.

    Chuck Norris visited ...
    bohusk bohusk February 2011 Chit chat
  • Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…

    ... just removes decimals. For negative numbers, it removes decimals and substracts ...
    na_th_an na_th_an December 2011 Development
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    ... numbers which interprets 0-127 as positive and 128-255 as negative ... 128 to -1 respectively; negative numbers can be identified by having ... the same hardware as unsigned numbers.

    Other ... standard interpretations of 8-bit numbers: unsigned integer, 2' ...
    Alcoholics Anonymous Alcoholics Anonymous January 2012 Development
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    Negative numbers in binary work by wrapping-round numbers.

    If you ... same, although one byte stores numbers 0-255. Go one ... 128..255 as being negative, representing the numbers from -128 up ... go up to +127, but negative numbers can go down to -128.
    joefish joefish January 2012 Development
  • number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…

    ... an obscure bug regarding unpadded negative numbers) but in a more satisfying ...
    Battle Bunny Battle Bunny May 2012 Sinclair Basic
  • number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…

    ... .
    * It doesn't pad negative numbers correctly.
    * It doesn't ... pad/align numbers with decimal fractions correctly.
    Battle Bunny Battle Bunny May 2012 Sinclair Basic
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