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Search Again :: Adv Search 480 results in 0.001s
<1234567…16>
  • FP Calc QuestionWhen using the FP Calc (RST 28h) to perform a subtraction how do you find out what the sign of the result is? ie. +/-. For example if I stack two va…

    When using the FP Calc (RST 28h) to perform a ...
    dmsmith dmsmith March 2006 Development
  • A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …

    ... .g. for calling the ROM FP-CALC etc, as I've spend ...
    boriel boriel April 2008 Development
  • Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …

    ... know i could use the FP Calc (RST 28) in the Rom ...
    dmsmith dmsmith March 2006 Development
  • Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …

    ... also get rid of the FP-Calc overhead.
    GOC GOC March 2006 Development
  • Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …

    ... (2) ; Push value into ROM CALC
    READ TOKEN ; *
    READ ... than ROMS one which uses FP CALC (mine is just an implementation ... (e.j. all FP calcs uses the ROM FP-CALC)

    [QUOTE ...
    boriel boriel May 2009 Development
  • 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…

    ... used the function to print FP numbers and both results were ... be

    RST 28H ;; FP-CALC
    DEFB $32 ;;n-mod ... ;MOD.
    DEFB $38 ;;end-calc

    DIV would just ...
    Geoff Geoff January 2010 Sinclair Basic
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... />
    [code]
    RST 28H ;; FP-CALC add step and re-store ... ;;delete .
    DEFB $38 ;;end-calc[/code]

    For this ... co-processor hits the end-calc instruction it increments the PC ...
    chev chev December 2010 Hardware
  • calculator and sinusok, look at the Sysel's routine: [PHP]3 5b00 *s 4 5b00 tabsin = #7000 03 mksin 19.11.1995 Busy soft …

    ... find ROM routine which prints FP from stack.

    [url ... .

    2DE3 PRINT-FP RST 0028,FP-CALC Use the calculator[/QUOTE]
    g0blinish g0blinish December 2012 Development
  • Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?

    [QUOTE=dmsmith;770580]I couldn't figure how to post it here in a code box...[/quote]

    Allow me.

    [code]THE 'REDUCE ARGUMENT' SUBROUTINE (Offset 35: 'get-argt.')

    This subroutine transforms the argument X of SIN X or COS ...
    chev chev May 2014 Development
  • The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…

    ... /> [code]
    .org 0x28
    fp-calc:
    jp 0x335b ; calculate in ... /> [code]
    .org 0x28
    fp-calc:
    call 0x04aa
    jp ... then return (will run original fp-calc handler).

    [u]3 ...
    tstih tstih November 2016 Development
  • The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…

    ... /> [code]
    .org 0x28
    fp-calc:
    push af ; store a ...
    tstih tstih November 2016 Development
  • Custom Menus on the ZX Spectrum +3Today, my Friends, i have the pleasure of presenting a program i have written which gives a set of custom menus on the +3. The main features of my p…

    ... would be to have such FP-calc dependant commands reside entirely in ...
    The_Bert The_Bert October 2017 Sinclair Basic
  • Custom Menus on the ZX Spectrum +3Today, my Friends, i have the pleasure of presenting a program i have written which gives a set of custom menus on the +3. The main features of my p…

    ... Computer, May 1985) using some FP-Calc stuff, but upon revisiting my ...
    The_Bert The_Bert October 2017 Sinclair Basic
  • using the ROM's FP calculatorIs it possible to use the ROM's FP calculator to evaluate any FP expression in a single sequence of commands without breaking out to stack some other…

    ... the ROM's FP calculator to evaluate any FP expression in a ...
    Battle Bunny Battle Bunny March 2012 Development
  • IF2 Rom snapshot creationHi, is it possible convert a Speccy 16k snapshot to a Interface 2 Rom file? I've the original Ultimate Pssst, Cookie, Trans-am and Jetpac tapes and …

    ... ;is it 5 bytes of FP?
    JP NZ,int2 ... ;now skip 5 bytes of FP
    DEC BC
    ... looking for invisible 5 byte FP marker
    JR NZ, ... store - stores FP onto calc stack
    CALL $2DA2 ;FP to BC
    FP value
    RET
    < ...
    Jimmy Jimmy April 2008 Emulators
  • Need a pointer to using the spectrum calculator from MCHi all, Can anyone point me to a good resource on using the spectrum calculator stack from machine code? I need to work out the number of seconds f…

    ... uses the ROM routine PRINT-FP followed by a carriage ...
    DEFB 05H ; PERFORM DIVIDE (CALC MEM5 / 65536)

    ... DEFB 0C4H ; SAVE ANSWER IN CALC MEM4
    ; DEFB 027H ; ... -half
    DEFB 038H ; end calc
    LD (HL), 091H ; ...
    Geoff Geoff February 2009 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…

    ... value we use the ZX FP calculator
    RST 40 ; 28054 ...
    ;following byte is 'end-calc'
    DB $38 ; 28056 56 ...
    Jimmy Jimmy May 2011 Development
  • using the ROM's FP calculatorIs it possible to use the ROM's FP calculator to evaluate any FP expression in a single sequence of commands without breaking out to stack some other…

    ... the ROM's FP calculator to evaluate any FP expression in a ... -05
    add
    end-calc;

    Be wary that ... is only used by PRINT-FP

    You can have ...
    Geoff Geoff March 2012 Development
  • using the ROM's FP calculatorIs it possible to use the ROM's FP calculator to evaluate any FP expression in a single sequence of commands without breaking out to stack some other…

    ... /d
    DEFB $38 ; end-calc
    [/CODE]

    Edit ... the ROM's FP calculator to evaluate any FP expression in a ...
    antoniovillena antoniovillena March 2012 Development
  • Original Spectrum SoftwareHello, I have a box of original Sinclair Spectrum software, mostly on cassette. I'd be interested in selling the stuff; I'm open to offers. …

    ... -3D 48k Spectrum
    VU-CALC 16/48k Spectrum 1982
    scott scott November 2001 Sales
  • forbidden planet..ok heres an odd one thats always puzzled me. I wonder if anyones got any more info... I go to my local game shop, and i buy an orignal copy of forb…

    ... i was looking foward to FP.

    Anyway.. I load ...
    Sard Sard September 2002 Games
  • 500+ Tapes Plus, Swapping PreferredHere is a long list of current games i want to get shot off. Im after pretty much everything i dont have, please send you dupe list to me, and you wa…

    ... /> VU3D x 4
    VU Calc
    VU File

    Cornishdavey:)) Cornishdavey:)) June 2003 Sales
  • Cheap Games For SaleAll spectrum games and games for other systems, ?1 which includes P&P. Email [email="hitlife@btinternet.com"]hitlife@btinternet.com[/email] prefera…

    ... /> Oh Mummy (Sinclair)
    Vu Calc (Sinclair)
    Kikstart 2 + Course ...
    Hitlife Hitlife July 2003 Sales
  • Anybody wanna swap ???Send your dupe list or requested to :- [email="cornishdavey@dsl.pipex.com"]cornishdavey@dsl.pipex.com[/email] Quite a long long list, come very co…

    ... /> VU3D x 4
    VU Calc
    VU File

    Cornishdavey:)) Cornishdavey:)) July 2003 Sales
  • Updated Swap List, some nice new ones anda lot gone walkies :- And if that dont float your boat, have a look at ebay :- [url="http://cgi6.ebay.co.uk/ws/eBayISAPI.dll?ViewListedItems&userid…

    ... /> VU3D x 4
    VU Calc
    VU File

    Cornishdavey:)) Cornishdavey:)) August 2003 Sales
  • Ported whole casettes of backuped utiltilitiesHi! A friend of mine gave me a few casettes he found in the attic - he used these to backup ORIGINAL casettes he had back in the spectrum games. The…

    ...
    57-38880: Program : SOFTEK'FP' Length: 19 Normal Speed ,Pause ...
    Tom-Cat Tom-Cat August 2003 MIA/STP/SDP
<1234567…16>

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Related Threads

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  • Softek 'FP' Full Compiler - incomplete[url]ftp://ftp.worldofspectrum.org/pub/sinclair/utils/SoftekFPFullCompilerV1.0.tzx.zip[/url]<br /> <br /> release is missing side B of the tape (the …
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