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<12345678>
  • How to play without POKEsI have a Speccy story, hope you will like it. It's about 13 years back. I was sitting in our living room and playing Dynamite Dan (part 1) on rubber…

    ... power for a couple of miliseconds. Its contents was changed a ...
    Dynamite Dan Dynamite Dan July 2002 Games
  • TimingHey All, Is their away of obtaining timing information on ZX128k other than addresses 23672->23674. Basically I would like to identify every 100th …

    ... on ZX128k other than addresses 23672->23674. Basically I would ... to the 50 present in 23672.

    Also, can anyone ...
    GBNvK GBNvK January 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ... by peeking at the address 23672.

    Is this the ... />
    VSYNCLP:
    LD A,(23672)
    CP L
    JR ...
    robpearmain robpearmain May 2004 Development
  • New Functions for Sinclair BasicA total of 52 new functions can be added to Sinclair BASIC; 26 numeric functions (A-Z) and 26 string functions (A$-Z$). Owing to the internal structu…

    A total of 52 new functions can be added to Sinclair BASIC; 26 numeric functions (A-Z) and 26 string functions (A$-Z$). Owing to the internal structure of Sinclair BASIC, the best place to store these functions is in line 0. This prevents the line being ...
    chev chev November 2004 Sinclair Basic
  • Programming MC : first stepsIsn't nice to collect all kinds of short routines to help making the first steps into MC for everyone who never touched MC? What I mean is mostly th…

    ...

    start ld hl,(23672)
    ld (seed),hl ; RANDOMIZE ...
    Dr BEEP Dr BEEP August 2005 Development
  • SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…

    ... so:
    [code]
    UNTIL [23672] = 3
    [/code]
    That ... break when the byte at 23672 = 3. Square brackets are used ...
    Marko Marko November 2007 Development
  • problem using FRAMES to generate 'random' numbersI realise the pros use bytes from ROM to get their random numbers, presumably because they want to use FRAMES to synchronise the printing and avoid s…

    ... ]
    randommove
    ld a,(23672) ;lsb of FRAMES
    and ...
    bigjon bigjon March 2008 Development
  • need explanation about GoogleWhen I type something into Google and press Enter, I get results in miliseconds. When I am searching something in my local Windows, it takes ages in …

    ... Enter, I get results in miliseconds. When I am searching something ...
    bohusk bohusk June 2008 Chit chat
  • Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…

    ... 23674+256*PEEK 23673+PEEK 23672)/50: LET t2=(65536*PEEK ... 23674+256*PEEK 23673+PEEK 23672)/50: RETURN [/CODE]

    23672)/50: LET t2=(65536*PEEK ... 23674+256*PEEK 23673+PEEK 23672)/50: RETURN [/CODE]

    Paddy Coleman Paddy Coleman September 2010 Sinclair Basic
  • A little program to set the time...Hi Folks, OK, I have amended the program so you now have four routines/functions you can use in your own programs: TIME: GET - Reads the current va…

    ... 23674+256*PEEK 23673+PEEK 23672):
    LET mm=(65536*PEEK ... 23674+256*PEEK 23673+PEEK 23672):
    LET time=(hh+mm ...
    Paddy Coleman Paddy Coleman November 2010 Sinclair Basic
  • The short blocks loaded in Jet Pac(Hope this have not been previously discussed. If so, my apologies) Is there any reason why Jet Pac loads three short blocks after the main block? I…

    ... FRAMES address. The value at 23672 does not seem to be ...
    mcleod_ideafix mcleod_ideafix November 2011 Games
  • Canny use of the 'r' register?Seeing Sokurah's code in the [URL="http://www.worldofspectrum.org/forums/showthread.php?p=583188#post583188"]crunch sound thread[/URL] has made me th…

    ... better than eg LD A,(23672) (though much much faster by ...
    R-Tape R-Tape November 2011 Development
  • Speed tip - "e" notationHi Folks, Whilst reading my "new" Sinclair ZX Spectrum BASIC manual I came across "e" notation again. In MRT I have the following line which is use…

    ... "]23673[/COLOR]+PEEK [COLOR="red"]23672[/COLOR]):
    LET m=([COLOR ... "]23673[/COLOR]+PEEK [COLOR="red"]23672[/COLOR]):
    LET t=(h ...
    Paddy Coleman Paddy Coleman April 2012 Sinclair Basic
  • Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…

    ... [color=blue]
    ld a,(23672)
    bit 2,a
    Battle Bunny Battle Bunny June 2012 Sinclair Basic
  • Is there an emulator that can "autosnapshot" after loading a tape?The reason i'm asking is that my everyday speccy is a grey +2 with a DivIDE 2k11. Some TAP files simply won't work because of rom checks and other in…

    ... to insert a "Wait x miliseconds and then save to " block ...
    Rorschak Rorschak August 2013 Emulators
  • Venturespeak Helplooking at the code from ZX Computing, October, November & December 1986. How do I make the code do more then 3 letters say 5. and could it be made …

    ... A
    60012 32785C LD (23672),A
    60015 32795C LD ...
    ardentcrest ardentcrest February 2014 Development
  • Help With AY Music Program in BASICHi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker…

    Hi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker but, in the end - I just learned how to use Soundtracker anyway (Thanks to ZXF for those tutorials!).
    RetroPhase2014 RetroPhase2014 December 2015 Sinclair Basic
  • Random Numbers, USR Return Values & Timing BASICI've been trying out Jon Ritman's random number routine, published in Your Sinclair Aug'87. Apart from a timing comparison I also did a frequency ana…

    I've been trying out Jon Ritman's random number routine, published in Your Sinclair Aug'87. Apart from a timing comparison I also did a frequency analysis across ranges of 0.05 from 0 to 1 for 65535 values. (Values are all "INT (n*10000)" for printing.) ...
    Battle Bunny Battle Bunny January 2017 Sinclair Basic
  • Computer Haiku (converted from C64)[url=https://archive.org/details/Computer_Haiku_1983_CES]Here's the original C64/PET program - "Computer Haiku" by Commodore Educational Software, 19…

    ... thought it unnecessary to PEEK 23672 (the Spectrum's equivalent) and ...
    The Mighty Dopethrone The Mighty Dopethrone September 2020 Sinclair Basic
  • line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…

    ... following code:

    POKE 23672,0 : RANDOMIZE USR 50000 : REM ... START-ADRES
    PRINT PEEK 23672


    The internal ...
    Dr BEEP Dr BEEP October 2001 Sinclair Miscellaneous
  • random numbersCan you write a piece of code that gets you a truly random number from the Spectrum, or is it only capable of generating a pseudo-random number (ie. …

    ... , you could use the addresses 23672, 23673 and 23674. The first ... so on. If you peek 23672, you get what could be ...
    Alessandro Tommasi Alessandro Tommasi April 2001 Sinclair Miscellaneous
  • Let a=val "1"I see some basic programs which use Let a=val "1" instead of let a=1 syntax. what is the difference between val "1" and 1? is it an effect of some …

    ... />
    [code]
    10 POKE 23672,0 : POKE 23673,0 : POKE ... F
    50 PRINT PEEK 23672+256*PEEK 23673
    [/code ...
    Dr BEEP Dr BEEP May 2003 Sinclair Basic
  • Head Over Heels remake RELEASED !Hey all ! The Retrospec remake of Head Over Heels has JUST been released. The URL with everything important, including a 15Mb download is : [url="h…

    ... it might be a few miliseconds short.

    The speed ...
    Tom-Cat Tom-Cat September 2003 Games
  • TimingHey All, Is their away of obtaining timing information on ZX128k other than addresses 23672->23674. Basically I would like to identify every 100th …

    ... on ZX128k other than addresses 23672->23674. Basically I would ... to the 50 present in 23672.
    [/quote]

    Tricky ...
    Philip Kendall Philip Kendall January 2004 Development
  • I need ASM for random numberI need to generate a random pair of coardinates in asm so that x=random no between 0 and 31, y=random no between 0 and 23. Any ideas on how to code …

    ... /> ORG 32768
    LD HL, (23672)
    LD (_RANDOM_SEED), HL ; Initialize ...
    horace horace September 2004 Development
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    This is what I've compiled so far:

    [quote]Resources
    =========

    * Make all caps
    ---------------

    You can turn CAPS LOCK on or off using a simple poke to 23658:

    POKE 23658,8: REM CAPS ON
    ...
    na_th_an na_th_an April 2005 Development
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... =0
    10 PRINT PEEK (23672)+256*PEEK (23673)
    20 ... f
    60 PRINT PEEK (23672)+256*PEEK (23673)

    10 PRINT PEEK (23672)+256*PEEK (23673)
    20 ... f
    60 PRINT PEEK (23672)+256*PEEK (23673)

    Dunny Dunny April 2005 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... wrote:

    PRINT PEEK (23672)+256*PEEK (23673)


    Def FN Tim=PEEK (23672)+256*PEEK (23673
    CKay CKay April 2005 Sinclair Basic
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