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Search Again :: Adv Search 52 results in 0.000s
<12>
  • logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…

    ... duplicate X,X
    3440B00003 stk data 3 X,X,3 ... X=3,X
    3440B00005 stk data 5 X=3,X ...
    Battle Bunny Battle Bunny September 2010 Development
  • Creating your own BASIC-commands on IF1bisThe old Sinclair IF1 has offered an easy possibility to create your own new BASIC-command: The use of the shadow variable VECTOR. This is described i…

    ... shadow ROM! For instance, the STK-END procedure (#05B7 at Sinclair ...
    HZJ HZJ March 2014 Hardware
  • ROM Calculator TrigHello, These Christmas holidays I finally have time to devote myself a little to the speccy . I have a question about how the ROM calculator implem…

    ... ;V, FIRST TERM

    ;stk-data
    DEFB FP_STK_DATA ;LITERAL ...
    rtunes rtunes December 2014 Development
  • Raycasting (3D Games!) with SpecBAS<div><font face="Arial, Verdana"><span style="font-size: 13.3333330154419px; line-height: normal;">Here's one I wrote just recently. I wanted to see …

    Here's one I wrote just recently. I wanted to see if SpecBAS can handle a raycasting engine - which doesn't mean doom-style texture mapping (though I may try that later!) but a rather nice algorithm that matches nicely up with the old "3D Maze" games you ...
    Dunny Dunny May 2015 Sinclair Basic
  • Competition: Sadistick routine on Spectrum ROMMy vote goes to BEEPER at #03B5 Let's ear you pick! :) And a great BOHHHHHHHHHHHHH to Dr Ian Logan & Dr Frank O'Hara for their description about the…

    ... point calculator
    DEFB A4 ; stk-ten
    DEFB 05 ; division ...
    Philip Kendall Philip Kendall May 2005 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 …

    ... /> PUSH HL
    CALL $2AB6 ;stk-store - stores FP onto calc ...
    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…

    ... the calculator
    DEFB 034H ; stk-data
    DEFB 000H ; reduced ...
    also
    DEFB 0A2H ; stk-half
    DEFB 038H ; end ...
    Geoff Geoff February 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... RST calbas
    DEFW 11563 ;Stk-bc
    F_piend CALL jumpo ...
    roko roko July 2009 Development
  • Implementing goto on error condition...OK, so when I'm reading a file or directory on a network filesystem, when I reach EOF, it's not actually useful at all for ZX BASIC to stop the progr…

    ... why I wanted to skip STK-BC (#2D2B) as it does ...
    roko roko October 2009 Development
  • How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…

    ... the documentation call it as STK-to-BC
    arfgh arfgh June 2010 Sinclair Basic
  • Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve

    ... want to break into - restart STK with your original choice of ...
    jp jp November 2010 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…

    ... example ‘ln’ (logarithmus naturalis) uses ‘stk-half’ three times and each ...
    Geoff Geoff April 2011 Development
  • IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…

    ... b
    jp $2D28 ;11560 stk-a[/CODE]For the first ...
    roko roko October 2011 Sinclair Basic
  • BackgroundDoes anyone know how i would create a background similar to [URL=http://imageshack.us/photo/my-images/42/backgroundmockup.png/][IMG]http://img42.ima…

    ... /> ORG 32768

    LD (STK),SP
    LD SP,23232 ...
    LD SP,(STK)
    RET
    STK DEFW 0
    [/CODE ...
    ccowley ccowley December 2011 Development
  • BackgroundDoes anyone know how i would create a background similar to [URL=http://imageshack.us/photo/my-images/42/backgroundmockup.png/][IMG]http://img42.ima…

    ... /> ORG 32768

    LD (STK+1),SP
    LD SP ... HL
    DJNZ L1
    STK LD SP,0
    RET ...
    Dr BEEP Dr BEEP December 2011 Development
  • 28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…

    ... ink, black background
    ld (stk+1),sp
    ld sp ... bc
    push bc
    stk ld sp,0
    pop ...
    R-Tape R-Tape April 2012 Development
  • Is there a ROM modification (48K) for load without typing LOAD""?The target is to play with 48K machines with keyboard broken, or an alternative solution for new clones like Superfo instead of making a new keyboard…

    ... ,0
    CALL L2BF1 ; routine STK-FETCH fetches the filename
    Dr BEEP Dr BEEP April 2012 Development
  • Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …

    ...
    screen di
    ld (stk+1),sp
    ld hl ... /> ldi
    djnz loop
    stk ld sp,0
    ei ...
    R-Tape R-Tape May 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... /> ld ix,string
    ld (stk+1),sp
    pstring
    or a
    jp z,stk ;exit if zero


    jp pstring

    stk ld sp,0 ;exit routine ...
    R-Tape R-Tape June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... faster than ix
    ld (stk+1),sp
    pstring
    or a
    jp z,stk ;exit if zero

    jp pstring

    stk ld sp,0 ;exit routine ...
    R-Tape R-Tape June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... JP.

    jp z,stk is only taken on the ...
    obo obo June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... faster than ix
    ld (stk+1),sp
    pstring
    or a
    jp z,stk ;exit if zero

    jp pstring

    stk ld sp,0 ;exit routine ...
    Dr BEEP Dr BEEP June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... faster than ix
    ld (stk+1),sp
    jr entry ... if not zero

    stk
    ld sp,0 ;exit ...
    Hikaru Hikaru June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... faster than ix
    ld (stk+1),sp
    [B] LD ... if not zero

    stk
    ld sp,0 ;exit ...
    Dr BEEP Dr BEEP June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    okay.jpg
    You forgot to remove the stuff between entry and stk though. :) [size=1]The post-print register adjustment code isn't needed either in that case...[/size]
    Hikaru Hikaru June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... faster than ix
    ld (stk+1),sp
    ld a ... of conditional jumps

    stk ld sp,0 ;exit routine ...
    R-Tape R-Tape June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... :
    [code]pstring
    ld (stk+1),sp
    add a ...
    Jonathan Harston Jonathan Harston June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... ),a
    di
    ld (stk+1),sp
    ld hl ...
    ret nz

    stk ld sp,0
    ld ...
    R-Tape R-Tape June 2012 Development
<12>

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