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<1…17181920212223…34>
  • Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…

    ... , POKE then PEEK the screen RAM with various numbers 0 to 255 ...
    Trafferth Trafferth July 2013 Hardware
  • ZX Spectrum 48K working as 16K from factoryGood morning I Have a Zx Spectrum 48k working as 16K , it came like this from factory. What can i do to solve this , and put it to work as 48K? Wha…

    Convert all the numbers to binary and you should ... the very simple POKE & PEEK test.

    If it ...
    Zorn Zorn July 2013 Hardware
  • generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…

    ... generate a new 16 bits random number. Let's call it ... also generate a sequence of numbers from 0 to 65535 without ...
    Einar Saukas Einar Saukas July 2013 Sinclair Basic
  • generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…

    ... : equ 23670
    FRAMES: equ 23672

    PixOUT:
    ... /> ld (SEED32),hl
    call RANDOM
    ex de,hl ;DE ... /> push de
    call RANDOM
    pop de ;HL=LFSR ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…

    ... /> I also changed the "CALL RANDOM" lines to "CALL RANDOM16" and ... /> [code]
    RANDOM16:
    call RANDOM
    ld a,h
    numbers.

    [url]https://en ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • How long does the ZX Spectrum need to crack a password?[url]http://blog.kaspersky.com/password-check/[/url]

    ... use a couple of random words with randomish numbers and/or punctuation ...
    ds99 ds99 July 2013 Sinclair Miscellaneous
  • generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…

    A galois lfsr is simpler to implement. Here's a version that (might) work:

    [code]

    start:

    ld de,0 ; repeat 65536 times
    ld hl,$3141 ; initial lfsr state

    lfsr_galois:

    ...
    Alcoholics Anonymous Alcoholics Anonymous July 2013 Sinclair Basic
  • Confounded DEF FNCan anyone see why this is going wrong? I've been tinkering with it since tea time and got nowhere. [code] 2 DEF FN t$(n,t,d) =STR$ INT (n/t)…

    ... 60 to get the three numbers for the timer using just ... />
    [code]
    FRAMES: equ 23672

    DIGITAL:
    exx ...
    Battle Bunny Battle Bunny August 2013 Sinclair Basic
  • Corrupt paper on zx spectrum 48kHi. When I power up my spectrum (issue 3) I get the light grey border, but the paper is black and it switches between thin red vertical lines and thi…

    ... RAM chip without using the peek/poke routines? (with a multimeter ... , the Z80 may be processing random instructions or it may have ...
    1024MAK 1024MAK August 2013 Hardware
  • MC LPRINT 23681Having problems with this routine to print large on the screen using LPRINT, it works ok in BASIC, but cant seem to get it to loop for some reason in…

    ... /> halt
    LOOP3: ld de,(23672)
    ld a,d
    I've added some random-ish colours, although I don ...
    Battle Bunny Battle Bunny September 2013 Development
  • 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…

    ... asm and it looks very random (using the XOR shift). I ... used to have getting usable numbers.
    R-Tape R-Tape September 2013 Development
  • 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…

    ... used to have getting usable numbers.[/QUOTE]


    ... () AS UBYTE
    ASM
    random:
    ld de,$A280 ; xz ... yw -> zt
    ld (random+1),hl ; x = y, z ... ; w = t
    ld (random+4),hl
    ;ret (NOT ...
    Gedlion Gedlion September 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... ]BASIC uses RANDOMIZE USR (+PEEK 23635+256*PEEK 23636) although I'm ... shorter using VAL. VAL"+PEEK 23635+256*PEEK 23636" works beautifully as ... to use the code for PEEK (0xbe) in the string. ... numeric literals; and for some numbers, you can go shorter still ...
    stephenw32768 stephenw32768 September 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... shorter using VAL. VAL"+PEEK 23635+256*PEEK 23636" works beautifully as ... to use the code for PEEK (0xbe) in the string. Have ... numeric literals; and for some numbers, you can go shorter still ...
    MrCheese MrCheese September 2013 Development
  • 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…

    ... c,a
    ld a,(23672) ;(FRAMES)_lo
    cp b ... not a good choice for random number generation (except on very ... [/B], the content of address 23672 will be the same in ...
    Einar Saukas Einar Saukas October 2013 Sinclair Basic
  • Poke 23755 & 23756Entering the following few lines of BASIC: [IMG][URL=http://s1286.photobucket.com/user/rebelstarwac/media/Poke1_zpsc2845838.png.html][IMG]http://i12…

    ... move the lines with greater numbers so it wil open ... [code] 10 LET dc=PEEK 23635+256*PEEK 23636
    20 LET ... df=PEEK 23627+256*PEEK 23628
    30 ... LET nl=PEEK dc*256+PEEK (dc+1)
    ... br /> 50 LET ll=PEEK dc+256*PEEK (dc+1)
    ...
    mcleod_ideafix mcleod_ideafix October 2013 Sinclair Basic
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... x80_fabs ; absolute
    defw x80_fpeek ; peek
    defw x80_fin ; in
    ld a, (hl) ; numbers
    ld (de), a ; first ... ; stack result

    ; THE 'PEEK' FUNCTION
    org 0x34fe
    chev chev October 2013 Development
  • If the Wii is a GameCube 1.5 ...... What does that make the Wii U? The Wii was described a few times as a GameCube 1.5 in terms of power, so are Nintendo now operatining one genera…

    ... 's new and has higher numbers in it's specifications SO ... 't spout the same few random lines of dialogue without regard ...
    ewgf ewgf November 2013 Chit chat
  • Spectrum Utility Routines Compendium (pending)I couldn't make up my mind into which section to put this, so it's ended up here for some tenuous reason. I haven't forgotten about this. I've been …

    ... , Display, Errors, HowTo, Mcode_Parameters, Numbers, Printing_Graphics, Random, Relocating_Mcode, ROM, ROM-routines, SaveLoad ... /> ** Scrolling by 2 pixels
    ** Random point screen fill
    ** Spectrum ...
    Battle Bunny Battle Bunny December 2013 Announcements
  • DIM DATA and the likeSo...I'm trying to work out arrays in BASIC a bit more and have knocked up the following quick test bed to fiddle about with before trying anything m…

    No, it doesn't make sense.

    Do you want to shuffle a set of numbers or generate a number at random from some range?
    Paradigm Shifter Paradigm Shifter January 2014 Sinclair Basic
  • DIM DATA and the likeSo...I'm trying to work out arrays in BASIC a bit more and have knocked up the following quick test bed to fiddle about with before trying anything m…

    ... a set of numbers or generate a number at random from some ... values to be randomly generated numbers...say each of the 10 ...
    Wookiee Wookiee January 2014 Sinclair Basic
  • Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…

    ... multiplications of large numbers (eg two 16-bit numbers into a 16 ... half of all inputs (assuming random) to almost a hundred cycles ...
    Alcoholics Anonymous Alcoholics Anonymous February 2014 Development
  • Flooding in Southern UKHas any wossers been affected by the flooding in the South West? Just been watching the news and it looks terrible, hope everyone is okay.

    ... Environment Agency, but some indirect numbers have come from a supplier ... Silly Walks in Westminster. Those random bits of paper in my ...
    ccowley ccowley February 2014 Chit chat
  • Is ESXDOS flexible enough to incorporate e.g. Spectranet commands?I was just discussing the idea with someone about the wish some people have to be able to combine interfaces such as DivIDE (Plus) / DivMMC EnJOY! wi…

    ... compromises. I should add those numbers do include some copying and ... dedicated file pointer interspersed with random access on the same file ...
    Alcoholics Anonymous Alcoholics Anonymous February 2014 Hardware
  • quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…

    ... /> [*]Lines 25 & 26 select random segments in high memory and ... ]DEF FN p(a)=PEEK a+256*PEEK (a+1)[/b]
    PEEK (pa+1)*256: RETURN[/b ...
    Battle Bunny Battle Bunny February 2014 Sinclair Basic
  • Learning a programming language from scratchSome advice please... At work I use an Excel/Calc spreadsheet of my own making to get address information from various csv/txt files I download ever…

    ... br /> letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
    numbers = '0123456789'
    postcode = ''
    this_letter = letters[random.randint(0, 25)]
    ... br /> postcode = postcode + numbers[random.randint(0, 9)]
    ...
    BigBadMick BigBadMick March 2014 Chit chat
  • OPUS Discocery DriveHi, since I am new here pls. excuse my bad English. I have a problem with 2 OPUS DISK Drive. One of them is working fine the other not. So I decided…

    Larger numbers ('words') are stored in two ... like this:
    PRINT PEEK 30000+ 256* PEEK 30001
    Your number ... < 8192. Use the 'double' PEEK.

    The keyword/token ...
    roko roko March 2014 Hardware
<1…17181920212223…34>

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