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<1…14151617181920…34>
  • 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…

    ... : REM START-ADRES
    PRINT PEEK 23672


    The internal ... also increase 1 per 1/50 sec.
    (but if you ...
    Dr BEEP Dr BEEP October 2001 Sinclair Miscellaneous
  • Pocket Clive - 2 QuestionsHello, I've just started using Pocket Clive on my iPaq pocket PC, excellent emulator BTW. 1. I have just wrote a small BASIC program to randomly pi…

    ... byte will be incremented every (256*0.02s) which equals roughly ... /> 40 DIM a(n)
    50 FOR i=1 TO n ... /> 40 LET s=2
    50 LET n=49
    60 ... random seed
    ld a,(23672) ; lsb of FRAMES is now ...
    Digital Prawn Digital Prawn December 2005 Emulators
  • How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…

    You will also loose your internal clock
    (23672 + 256 * 23673 + 65536 * 23674)
    Dr BEEP Dr BEEP May 2007 Development
  • How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…

    ... loose your internal clock
    (23672 + 256 * 23673 + 65536 * 23674)[/QUOTE]

    Rickard Rickard May 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…

    ... br /> extern int std_seed(23672); // random number seed ... heads experiment came up 50/50 indicates rand() generates ...

    int outcome[256];

    main()
    256);

    // run ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • Disappearing/appearing effectI remember doing a small routine in BASIC which could be used to cover the attributes section randomly, until all 704 characters were filled with the…

    ... y=INT (r/256): LET x=r-y*256: PLOT x,y ... (RND*255,255,PEEK 23672),FN r(RND*175,175,PEEK 23672)
    20 ...
    Battle Bunny Battle Bunny March 2008 Sinclair Basic
  • 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 …

    ... /> CODE 23728,1
    CODE 23672,2[/INDENT]
    The only ... TO 1200:POKE i+32768, PEEK i:NEXT i
    30 ... TO 16383: POKE i+32768, PEEK i:NEXT i
    35 ... LOAD "0" CODE 36864
    50 LOAD "1" CODE 45056
    Jimmy Jimmy April 2008 Emulators
  • Assembler snippetsI was just thinking that a thread for small but useful assembler snippets to do useful things would be cool for people learning z80 coding. Not to me…

    ... ,0
    LD (23672),HL
    LD (23673),HL ; Reset clock
    LD A,(HL) ; fetch #/50 sec
    ADD A,A ...
    Dr BEEP Dr BEEP January 2009 Development
  • Image to ZXSpec 1.0Hi, I've written a piece of software (still not finished) that outputs any kind of image onto a Spectrum having being converted on a PC. It takes a…

    ... .
    [code]
    1 REM ****256 of any characters here ***
    40 print 23760+a,peek(23760+a)
    50 next a
    LCD LCD May 2009 Sinclair Miscellaneous
  • Image to ZXSpec 1.0Hi, I've written a piece of software (still not finished) that outputs any kind of image onto a Spectrum having being converted on a PC. It takes a…

    ... .
    [code]
    1 REM ****256 of any characters here ***
    40 print 23760+a,peek(23760+a)
    50 next a
    256 x 176 pixels, so that ...
    brownb2 brownb2 May 2009 Sinclair Miscellaneous
  • faster bitwise operators?well, sinclair basic lacks bitwise operators and I searched "basic forum" with keyword "bitwise" and only 3 thread came up. So the forum also lacks b…

    ... state
    LD BC, 5*256 ; C = 0; B = ... 23296
    20 IF PEEK 23316 THEN PRINT "Fire ( ... 0)";
    30 IF PEEK 23317 THEN PRINT "Up (9 ... "Down (8)";
    50 IF PEEK 23319 THEN PRINT "Right(7 ... )";
    60 IF PEEK 23320 THEN PRINT "Left (6 ...
    BloodBaz BloodBaz May 2009 Sinclair Basic
  • Converting 50ths of a second to hours, minutes and seconds...Hi Folks, I have written some code to convert the interal Spectrum clock from 50ths of a second to hours, minutes and seconds. The following code s…

    ...
    23672 reaches 50 I reset this to 0 and increase 23673. This ...
    Dr BEEP Dr BEEP August 2010 Sinclair Basic
  • Activision's Ghostbusters (1984 version)Did anyone ever manage to work out (or hack) the account numbers? If so, are they the same for the 1986 rehash?

    ... (m/100)*100)
    50 LET m5=0: LET m4 ... 255 THEN LET b=b-256: GO TO 110
    ... i
    140 LET answer=PEEK 49152
    200 LET ... 210 LET a1=a+(answer*256)
    290 LET s$=""< ... cb,s,cb,17,121,50,0,192,201
    ... to 20 chars) MOD 256. Therefore you can change ...
    Jimmy Jimmy January 2011 Games
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... /> [FONT="Courier New"]xx10 RANDOMIZE PEEK 23672+256*PEEK 23672[/FONT]

    there is ...
    Paddy Coleman Paddy Coleman May 2011 Sinclair Basic
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... /> [FONT="Courier New"]xx10 RANDOMIZE PEEK 23672+256*PEEK 23672[/FONT]

    there is ...
    Philip Kendall Philip Kendall May 2011 Sinclair Basic
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... .

    [CODE]100 RANDOMIZE PEEK 23672+256*PEEK 23672
    110 FOR a=1 ...
    Paddy Coleman Paddy Coleman May 2011 Sinclair Basic
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... /> [FONT="Courier New"]xx10 RANDOMIZE PEEK 23672+256*PEEK 23672[/FONT]

    there is ... the beginning of the program, PEEK 23672 will always be zero (or ... .

    [CODE]100 RANDOMIZE PEEK 23672+256*PEEK 23672
    110 FOR a=1 ...
    Alcoholics Anonymous Alcoholics Anonymous May 2011 Sinclair Basic
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... $"" THEN GO TO 40
    50 PRINT "Choose option 1-5 ... 60
    70 POKE 23671, PEEK 23672
    100 REM Remaining program ...
    Einar Saukas Einar Saukas May 2011 Sinclair Basic
  • hisoft basic compiler - saveAnd yet another question. I'm sure spamming forums a lot hehe :) Is there anyone expirienced with hisoft basic compiler? I'm working on small program…

    ... start)
    20 let z=peek 30000 (game requests save if ... then save "save1" code 31000,256 (compiled program copies array to ... data back into array)
    50 randomize usr 40000 (back to ...
    Arda Arda September 2011 Sinclair Basic
  • 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…

    ... READ v: IF v255-(256-42*INT (256/42)) THEN GO TO ... LET b1=1+INT (b/(256/42))
    360 REM
    Paddy Coleman Paddy Coleman December 2011 Development
  • How much space does a number take?Hi Folks, Could someone please remind me how much memory a number takes up in a BASIC listing. For example, if you had: [CODE]100 LET a=3000[/CODE…

    ... "
    20 LET b = VAL "256"
    30 FOR n=23756 ... 14;CHR$ (PEEK n AND PEEK n>31)
    50 NEXT n ...
    BloodBaz BloodBaz May 2012 Sinclair Basic
  • WibbleBibble's Basic threadHi in an attempt to keep my questions from spamming the forum. I think its better to put them all in one place. Thanks everyone so far, I feel I am …

    ... , 23672 needs checking no more than once a second and 23673 every ... timer don't bother checking 23672 either. The BASin profiler could ... retrieve the values. There's 50 frames per second, or 60 ...
    Battle Bunny Battle Bunny August 2012 Sinclair Basic
  • Diagnosing a strange software fault in a 48kHi, A friend gave me a 48k, which I am very keen to restore. The spectrum 48k was my first computer over 20 years ago and I owe my ability to code t…

    ... need to write at least 256 [i]sequential[/i] values, i ... F=0 TO 255
    50 IF PEEK (50000+F) F THEN ... ;": Should be ";F;" but is ";PEEK(F)
    60 NEXT F ...
    Spirantho Spirantho October 2012 Hardware
  • Keyboard TrickI know how to use the multi key in BASIC with IN you can get the keys [QUOTE]IN 254+256*(255-2^K)[/QUOTE] K is the keyboard's half row, comes from …

    ... later
    LD BC, 254*256+254
    LD D, ... is located
    30 IF PEEK (a+10) THEN PRINT ... "DOWN (A) ";
    50 IF PEEK (a+26) THEN PRINT "LEFT ... (O) ";
    60 IF PEEK (a+25) THEN PRINT "RIGHT ... (P) ";
    70 IF PEEK (a+35) THEN PRINT "FIRE ...
    BloodBaz BloodBaz February 2013 Sinclair Basic
  • IZX: a new standard format and driver for ZX-Spectrum icons[B]IZX[/B] is a very compact and efficient standard format to create icons for the ZX-Spectrum. You can download it from here: [LIST] [*][URL="http:…

    ... s=0 TO 1
    50 LET b=b+b+POINT ...
    Einar Saukas Einar Saukas July 2013 Brand new software
  • display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…

    ... LET err=1-x1
    50 REM Loop starts
    60 ... /> 1170 LET adr=16384+yl*256+l*2048+r*32+xc ... index
    1190 LET byte=peek(adr): REM get current byte ...
    JonB JonB October 2013 Sinclair Basic
  • Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…

    ... /> 20 LET p=32768
    50 FOR n=1 TO 7 ... POKE 23607,INT (p/256): POKE 23606,p-256*PEEK 23607
    110 ...
    TK90XFan TK90XFan December 2013 Sinclair Basic
<1…14151617181920…34>

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HitBox

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peek 1.9K 4.4K
23673 108 194
256 4K 7.7K
23672 204 359
50 12K 15.9K

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