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  • Fast LogsAnyone know of a fast ln function I can steal? The ROM function seems to be hideously slow. I wrote a look-up table dirty and less accurate sin func…

    ... that, and it's all calculator stack stuff; which is what ... SE basic ROM uses the calculator better than the original sinclair ... also implement SQR as a calculator based routine using the newton ...
    Gedlion Gedlion March 2011 Development
  • Drawing 3D grids in Basic...This is probably very simple for someone who feels comfortable with Math, but it's driving me crazy... Let's say I want to draw a grid of 16 by 16 s…

    ... height (vstep), as a Speccy calculator quirk caused it to come ...
    Battle Bunny Battle Bunny March 2011 Sinclair Basic
  • Fast LogsAnyone know of a fast ln function I can steal? The ROM function seems to be hideously slow. I wrote a look-up table dirty and less accurate sin func…

    ... SE basic ROM uses the calculator better than the original ... also implement SQR as a calculator based routine using the ... The faster and more accurate calculator routines used in the SE ... the Newton Raphson square root calculator routine based on the Jupiter ...
    Geoff Geoff April 2011 Development
  • Unusual "places of interest" in EnglandI often ride across the country on B roads and minor A roads. Friday, for instance we crossed a private toll bridge near Henley on Thames - before th…

    ... of place. All hand carved marble
    fog fog April 2011 Chit chat
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... , flags and registers. A simple calculator program will exercise your emulator ...
    Arjun Arjun May 2011 Emulators
  • This might be something new[img]http://www.711chan.org/test/src/130427925559.png[/img] Have a look at this screenshot of my emulator ZX82. Notice the copyright message? That's…

    ... Z80. Floating point routines, the calculator, tape routines, anything else... all ...
    chev chev May 2011 Emulators
  • Games You Still Hate to This Day Like...Dream Warrior... I can't even understant what's the dam point of the game... and why did they have to chose those horrible colours???

    ... games were good as was Marble Madness....but to my mind ...
    absinthe_boy absinthe_boy May 2011 Games
  • Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …

    ... the spare space between the calculator and machine stacks. Due to ...
    Battle Bunny Battle Bunny May 2011 Games
  • GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…

    ... 48 :) ).

    Typs for calculator design:

    [img]http ...
    velesoft velesoft May 2011 Development
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... the ROM to hold some calculator-related value. My assumption is ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... with similar instructions, including a calculator routine that performs EXX followed ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …

    ... the free space between the calculator stack & machine stack and ...
    Battle Bunny Battle Bunny May 2011 Games
  • Frank N SteinThis is an improved bugfix for [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0001849"]Frank N Stein[/URL] as discussed recently in [URL="htt…

    ... the free space between the calculator stack & machine stack and ...
    Battle Bunny Battle Bunny May 2011 Infoseek database
  • GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…

    ... ->desktop, /* parent */
    "zx calculator",
    main_wnd_callback,
    STYLE_MAIN,
    tstih tstih May 2011 Development
  • Back to BASIC[U][B]Archaeology guide to programs compiled used MCODERII.d[/B][/U] After various people have been talking about "Frank'n'stein" I decided to finis…

    ... we use the ZX FP calculator
    RST 40 ; 28054 239 ...
    Jimmy Jimmy May 2011 Development
  • Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…

    ... floating point number on the calculator stack. The 14 is the ...
    Battle Bunny Battle Bunny June 2011 Sinclair Basic
  • Video gaming coincidencesThere are some strange video gaming coincidences, when you think about it. For example: 1. [B]Half-Life 2/Breakdown[/B] In 2004 Half-Life 2 came o…

    ... .mathsisfun.com/combinatorics/combinations-permutations-calculator.html[/url]
    Turkwel Turkwel June 2011 Chit chat
  • A Pointless Propotional Font demoSomething I've made the last couple of days, which is probably completely pointless, but might be a bit amusing. It's also not worthy of posting thi…

    ... an hex editor and an calculator to make them appear to ...
    Timmy Timmy June 2011 Development
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... in one bit of the calculator code, although once again that ...
    Philip Kendall Philip Kendall July 2011 Emulators
  • Operator ANDHi I'm trying to write some very simple game in ZX Basic, but I guess I've forgot most of it because I can't understand why simple IF....THEN sequen…

    ... the result twice on the calculator stack. It's sorted in ...
    Geoff Geoff July 2011 Sinclair Basic
  • Son of someone who worked at SinclairJust joined the ZX81 forums: [url]http://www.rwapservices.co.uk/ZX80_ZX81/forums/viewtopic.php?f=10&t=522&sid=2f9e54a3c422c038c186605f5d0189e2[/url]…

    ... and others even in the calculator days. I noticed Robin has ...
    Geoff Geoff July 2011 Sinclair Miscellaneous
  • List of existing games that needs a port to zx spectrumPlease post here the games that exist in other platform(s) but does not exist in speccy. Please keep in mind this is not a to-do list, so don't hesti…

    ... , precisely because the Sinclair BASIC calculator stack just isn't fast ...
    AndyC AndyC July 2011 New game ideas
  • List of existing games that needs a port to zx spectrumPlease post here the games that exist in other platform(s) but does not exist in speccy. Please keep in mind this is not a to-do list, so don't hesti…

    ... , precisely because the Sinclair BASIC calculator stack just isn't fast ...
    Rebelstar Rebelstar July 2011 New game ideas
  • automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …

    ...
    FPTOBC: equ $2dA2 ;from calculator stack: BC

    STACK ...
    Battle Bunny Battle Bunny August 2011 Development
  • Just picked up an old Texas Instruments"portable professional computer" with built in screen and 5 /14 inch drive. Very heavy, can just about lift it. will need some attention form whoeve…

    ... I got a sharp estimate calculator, which I will use at ...
    mel the bell mel the bell August 2011 Chit chat
  • Sinclair Programs uploaded.I've just uploaded a ZIP containing all the 'Sinclair Programs' programs and the instructions for each one. (Well all the ones from 'The Type Fantast…

    ... Seccull - Jun'85
    VAT Calculator - David G Price - Mar/Apr ...
    Neil L Neil L August 2011 MIA/STP/SDP
  • Casstte 50 compilation emulator game questionHi - Hope this is the right place to put this question? Wasn't sure? But I have just downloaded the 'Cassette 50' compilation from wos but can't w…

    ... converstaion...now where has that calculator watch gone?
    retromad retromad August 2011 Games
  • Ebay bargains!I recntly picked up a real bargain on Ebay: a 128k spectrum with (it advertised) 60+ games/covertapes, but when I counted, there were 130! I haven't …

    ... .co.uk/itm/Sinclair-Cambridge-Calculator-1973-4-Case-Manuals-/280722090739 ... ?pt=UK_Consumer_VintageAudio_RL&hash=item415c572af3"]calculator[/URL] through to the [URL ...
    Meurglys68 Meurglys68 August 2011 Games
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... with, as it uses the calculator functions).
    kphair kphair August 2011 Emulators
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