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  • Randomize USR xxxxxA weird topic: When I was a kid I use to mess around with the RANDOMIZE USR xxxxx, sad I know!!! For instance RANDOMIZE USR 51234 would give me a loa…

    ... to mess around with the RANDOMIZE USR xxxxx, sad I know!!!
    For instance RANDOMIZE USR 51234 would give me a ...
    Anonymous Anonymous June 2002 Sinclair Miscellaneous
  • POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…

    ... store of useful POKES, or RANDOMIZE USR statements with interesting effects?
    RANDOMIZE USR 1216 to RANDOMIZE USR 1327. This should at ...
    The Mighty Dopethrone The Mighty Dopethrone October 2003 Sinclair Miscellaneous
  • Those RANDOMIZE USR lines that look like tape loading...I often see on here people mentioning those RANDOMIZE USR lines which when entered, seem to simulate a tape loading, with the colours and lines in th…

    ... on here people mentioning those RANDOMIZE USR lines which when entered, seem ... I first ever found was RANDOMIZE USR 1280 which shows blue and ...
    alexsut alexsut April 2007 Sinclair Miscellaneous
  • Randomize usrHi, I've often wondered why/how they came up with RANDOMIZE USR <memory address> to invoke machine code couldn't they have used a better keyword (e…

    ... they came up with
    RANDOMIZE USR to invoke machine code

    I read somewhere that USR is the keyword that executes ...
    so what does the RANDOMIZE in front do ?
    < ... br /> All I know about RANDOMIZE is regarding random number sequence ...
    saiwong saiwong December 2009 Sinclair Basic
  • RANDOMIZE USR, PRINT USR etcHello just wondering why is it called RANDOMIZE UsR what does randomising have to do with it ? When calling machine code routine from adress x you ty…

    ... wondering why is it called RANDOMIZE UsR what does randomising have to ... x you type RANDOMIZE USR x. Why not RUN USR x ? I just ... tried PRINT USR 65368 it resets the machine! ...
    ivanb303 ivanb303 October 2016 Sinclair Basic
  • Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…

    ... like to start it by RANDOMIZE USR xxxxx. Which parameters should I ...
    MrShhh MrShhh March 2003 Sinclair Miscellaneous
  • Usr 0I have noted there are some games / applications / demos which have to be loaded in USR 0 mode on a 128K Machine ("Randomize USR 0" in 128K BASIC the…

    ... mode on a 128K Machine ("Randomize USR 0" in 128K BASIC then ... is the case, and what USR 0 actually DOES?
    Swevicus Swevicus January 2010 Hardware
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... " a strange RANDOMIZE USR. This is it:
    [b]RANDOMIZE USR 46578[/b]
    USR in an emulator in 48K ... 's happening here. The RAND USR proposed just begins executing NOP ... as parameter for the RAND USR, the pattern doesn't show ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • The Sinclair ZX Microdrive Resurrection Project (long)Dear Spectrum fans! [Management summary: Download [url]http://www.bartheld.net/temp/mdv2img.zip[/url] and tell me what you think. All help very much…

    ... /> 40 PAUSE 0
    50 RANDOMIZE USR 32768
    60 GOTO 40 ... at the risk of a crash later if machine code (or ...
    Volker Volker March 2012 Emulators
  • Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…

    ... POKE fAddr,F
    200 RANDOMIZE USR mcAddr
    210 POKE lAddr ... done wrong to cause it crash?

    [*]Is there a ...
    Korinel Korinel April 2012 Emulators
  • .tapein load crashes if no CLEAR performed first(!)Hi Guys, Can anyone explain the following as it has be stumped: I came across an unexpected crash today when loading in a 16K block of code at 8000…

    ... /> I came across an unexpected crash today when loading in a ... "" CODE 32768,16384
    30 RANDOMIZE USR 32768[/code]

    Out ... failed to return to BASIC (crash).

    If I do ...
    BloodBaz BloodBaz August 2012 Hardware
  • USR 0I've heard a lot about loading a program in USR 0 (and yes, I know how to do it - "RANDOMIZE USR 0" in 128 BASIC). What I want to know is: What is th…

    I've heard a lot about loading a program in USR 0 (and yes, I know how to do it - "RANDOMIZE USR 0" in 128 BASIC). What I want to know is: What is the point of loading a program in USR 0 mode, and what does it actually DO?
    Swevicus Swevicus November 2012 Hardware
  • RANDOMIZE USRI always thought that this particular basic command was not intuitive! If I understand correctly is means run the code from the memory address, is t…

    ... right?

    The term randomize implies the RAND function (random ...
    Van_Dammesque Van_Dammesque February 2013 Sinclair Basic
  • Help! I'm learning Machine Code...Having decided to take the plunge and learn to machine code a while ago, I have started in earnest using the much recommended 'Mastering Machine Code…

    ... 40000, or 9C40h), and type RANDOMIZE USR 40000, I get the ok ... succeeded in not making it crash. But how else do I ...
    namtip namtip February 2016 Development
  • PSI ChessHi, Anybody out there remember the game "PSI Chess" by The Edge? Well, there seems to be no problem finding a snapshot ot tape image for this game …

    ... 5 emulated minutes for my crash).


    From Your ... Basic. Now you can type RANDOMIZE USR 34900 and a clock starts ...
    Ed Ed February 2002 Games
  • games written using game writng programsI was reading through some issues of crash not long back and one article was about some 16 year old that wrote Frank n stein for the speccy(never pla…

    ... reading through some issues of crash not long back and one ... program and compile it with RANDOMIZE USR 60000.
    Woody Woody April 2003 Games
  • Early Speccy Memories ThreadHiya. Right Ok. I want to start a thread going here and I want to know all about your early days with speccys. I am 31 now. I got involved with spec…

    ... />
    Then of course when Crash came out every month, wow ... days were priceless and the Crash Xmas specials were out of ... Sinclair, C & VG and Crash. Was very sad to see ... used to try putting in RANDOMIZE USR 60450 or something just to ...
    psj3809 psj3809 July 2004 Games
  • Early Speccy Memories ThreadHiya. Right Ok. I want to start a thread going here and I want to know all about your early days with speccys. I am 31 now. I got involved with spec…

    ... .

    BOOTS computer displays + RANDOMIZE USR 1234 :)

    Fiddling with ... games).

    CRASH! magazine. The last issue CRASH! in 1992...
    General_Zod General_Zod July 2004 Games
  • Early Speccy Memories ThreadHiya. Right Ok. I want to start a thread going here and I want to know all about your early days with speccys. I am 31 now. I got involved with spec…

    ... DATA statements !
    2) Getting Crash every month and reading it ... 'Program Loading: The Hobbit'; 20 RANDOMIZE USR ..." on the display models in ... my mates' house with the Crash map of Underwurlde and spending ...
    jonesmark jonesmark July 2004 Games
  • Earth ShakerIm stuck on a level. Can anyone help me if i tell you the level number/name?

    ... of that page (RANDOMIZE USR 35616) I misread it as RANDOMIZE USR 3616! :o ... ] give a very pretty psychedelic crash... ;)
    robert@fm robert@fm March 2005 Games
  • Pretty CrashesTo make a 48K spectrum crash spectacularly and beautifully enter the following into basic. Also works on a 128k in 48k mode though not quite as prett…

    My favourite was hitting the loading routine at a particular place:

    RANDOMIZE USR 1331

    (if you wanna see a pink loader!)
    Not really a crash though as it returns to BASIC.
    BloodBaz BloodBaz October 2006 Sinclair Basic
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... out still provoked an immediate crash...

    I then went ... for the monitor)
    [*][B]RANDOMIZE USR (X+6097)[/B] to activate ...
    glancaster glancaster February 2007 Development
  • Screen$ disappearanceGreetings to all developers :D As you know, I have been playing around with Professional Adventure Writer and was making a few tests in the adventur…

    ... 28799 to load without a crash.

    Try this new ... extvec+12,20
    70 RANDOMIZE USR (extvec+9)
    [/code]
    mulder mulder March 2007 Development
  • Stopping autostart/autorun and entering POKEsHi, I want to enter some POKEs into a game on my ZX Spectrum, but whenever i do a LOAD "", my games always autorun. Is there any way I can get the pr…

    ... /> 20 LOAD""CODE
    30 RANDOMIZE USR xxxxx

    where you ... cheats sections of magazines like CRASH and SU they have complete ...
    alchresearch alchresearch April 2007 Games
  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... I could only get to crash.

    Just went back ... .

    RANDOMIZE USR 65180 turns it on
    RANDOMIZE USR 65190 turns it ...
    Digital Prawn Digital Prawn October 2007 Games
  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... from the same author. Both crash on every hardware config I ... 39999: LOAD "t:" : LOAD "" CODE : RANDOMIZE USR 40000
    However, it just ... on the tape. All three crash the speccy when RUN. Since ...
    Digital Prawn Digital Prawn November 2007 Games
  • BBC microI was often made aware by people at the time that the beeb was the "best computer in the world." Even my next-door neighbour ( who was a bit of a co…

    ... = A TO B
    40 RANDOMIZE USR X
    50 NEXT X ... me all sorts of interesting crash style effects, and other interesting ...
    Scottie_uk Scottie_uk May 2008 Chit chat
<1234567…34>

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Related Threads

  • RANDOMIZE USR, PRINT USR etcHello just wondering why is it called RANDOMIZE UsR what does randomising have to do with it ? When calling machine code routine from adress x you ty…
  • Randomize USR xxxxxA weird topic:<br /> When I was a kid I use to mess around with the RANDOMIZE USR xxxxx, sad I know!!!<br /> For instance RANDOMIZE USR 51234 would g…
  • POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects?<br /> <br /> As a start, try anything from RANDOMIZE USR 12…
  • Crash Magazines & Crash Cover Tapes Duplicates for swapHi i am collecting both crash magazines and cover tapes and have quite a few duplicates of both, I was just wondering if any other mag and tape colle…
  • New interview with CRASH editor Dominic Handy at CRASH OnlineI've posted an interview with CRASH editor Dominic Handy at CRASH<br /> Online, covering his time at Newsfield on CRASH and other magazines.<br /> <b…
  • List of RANDOMIZE USR code effects?Hi chaps,<br /> Does anyone have one of these please?<br /> Thanks.
  • New material on the early days of CRASH at CRASH OnlineIn preparation for "The Fantasy Art of Oliver Frey" (due later this year), Oli found some historical documents relating to the early days of CRASH. T…
  • Those RANDOMIZE USR lines that look like tape loading...I often see on here people mentioning those RANDOMIZE USR lines which when entered, seem to simulate a tape loading, with the colours and lines in th…
  • Happy Birthday Randomize UsrDon't know who you are, but have a good one dude! Hope you have many more.<br /> <br /> :)
  • Randomize usrHi,<br /> <br /> I've often wondered why/how they came up with<br /> RANDOMIZE USR to invoke machine code<br /> <br /> couldn't they have used a bet…

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