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<1234567…34>
  • 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…

    ... a routine without upsetting the RANDOMIZE seed, PRINTing anything or changing the ...
    40 PRINT FN a$(USR 40000);
    [/code]

    chev chev December 2009 Sinclair Basic
  • 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…

    ... br />
    The term randomize implies the RAND function (random ... QUOTE]

    As USR returns a value, there must ... with DRAW USR,USR.
    RANDOMIZE simply modifies the SEED system Variable ... pair must been read. RANDOMIZE is simple space saving and ...
    LCD LCD February 2013 Sinclair Basic
  • Making a mapI should learn Z80 assembly, but I don't have the time (really busy) and I feel like making a game. I've tried with Colt which gives me enough speed…

    ...
    i.e PRINT USR
    RANDOMIZE USR will make the print in ...
    Dr BEEP Dr BEEP March 2004 Development
  • PokesAfternoon people, before i begin can i just stress that i am an ultimate newbie when it comes to the spectrum so forgive me for my ignorance,but i ne…

    ... statments then a PRINT USR, RANDOMIZE USR or something USR, which is what starts ... hand, then do the PRINT USR yourself too.

    But ...
    joefish joefish June 2011 Games
  • New presentation for ZX Spectrum: "New Wave"DOWNLOAD: [url]http://pouet.net/prod.php?which=61133[/url] [img]http://pouet.net/screenshots/61133.png[/img] Enjoy.

    ... SUB {=\ LLIST !?
    2>RANDOMIZE USR VAL a$: BORDER z: PAPER ... " DRAW ",NOT PI: READ a$: RANDOMIZE USR VAL "15363+256*(PEEK 15363195 ... /> 4 OUT CODE " DRAW ",CODE "USR ": RANDOMIZE USR VAL "24576": GO TO PI ...
    TK90XFan TK90XFan March 2013 Brand new software
  • Non-repetitive RNDHi guys) Perhaps, some of you already encountered a situation, when one needed a set of [b]unique [/b](pseudo-)random values, say, from zero to 25…

    ... just need to store the seed to reproduce the sequence of ... num shuffles
    10 let seed=1234 : rem.. or use a ... , result is x.
    1000 randomize seed
    1005 let x=n ...
    i love the z80s i love the z80s December 2018 Sinclair Basic
  • 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
  • saving part of a BASIC programHere's a short routine to save part of a BASIC program. The idea is that it can be merged into a program and then used to save sub-routines, etc. to …

    ... : INPUT ""
    9995 RANDOMIZE ap: LET bc=l+USR (vars+29): STOP ...
    Battle Bunny Battle Bunny September 2011 Sinclair Basic
  • 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
  • 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…

    ... :
    [code]
    LD bc,(SEED)
    call $2d2b ;STACK_BC stack ... form, thus ensuring that the USR call returns the required decimal ... method to return from a USR call with a floating point ... pointers to be returned from USR calls. Refer to the " ...
    Battle Bunny Battle Bunny January 2017 Sinclair Basic
  • An intriguing question...Well, intriguing for me anyway. As we all know, when calling a Machine Code function from BASIC, we use the USR (address) function. But for this to …

    ... the upper screen
    RANDOMIZE USR will display at the lower ... screen
    LET X=USR will display at the lower ... screen
    LLIST USR will display at the printer ... />
    RANDOMIZE USR will do something however. It sets the SYSTEMVARIABLE SEED with ...
    Dr BEEP Dr BEEP June 2004 Development
  • An intriguing question...Well, intriguing for me anyway. As we all know, when calling a Machine Code function from BASIC, we use the USR (address) function. But for this to …

    [quote]
    RANDOMIZE USR do nothing with it.
    [/quote]

    RANDOMIZE will set the value as seed for random numbers, in the appropiate system variable.
    Metalbrain Metalbrain June 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
  • 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…

    ... , the parameter supplied to RANDOMIZE is copied ito SEED.

    Q ... GO SUB 210
    30 RANDOMIZE USR 65268
    40 LET s ... the high byte of the seed
    ; (Changes once every 20ms ...
    Digital Prawn Digital Prawn December 2005 Emulators
  • New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…

    ... =Dr BEEP;255110]Again the RANDOMIZE is set in a loop ... .[/QUOTE]

    Calling RANDOMIZE inside a loop is not ... , because this will "reset" the seed and so RND will produce ... /> [CODE]
    1 PRINT 0*USR 7766+RND,: GO TO 1 ...
    Einar Saukas Einar Saukas March 2008 Development
  • z80 program to BASIN?I have a BASIC program with UDG:s loaded in a z80 snapshot file. I would like to edit the program with Basin, but I wonder what must be done before…

    ... a machine code program with RANDOMIZE USR memory-adress, but does ... "mean" anything? (The randomize part that is, or does ... you PRINT USR or GOTO USR or the favourite, RANDOMIZE USR. The reason ... RANDOMIZE is pretty harmless. It will reset your random seed so ...
    Dunny Dunny September 2009 Sinclair Basic
  • 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…

    ... , I don't think the RANDOMIZE actually plays any part in ... command to soak up the 'USR xxxx' return value if you ... code routine generates a random seed for BASIC, of course ...
    RoseCotton RoseCotton December 2009 Sinclair Basic
  • compressing basicI thought I'd ask here instead of the basic forum.. in the sense of giving me 1 command line, and NOT the whole listing joined up etc. and it uncom…

    ... 18 )
    LET bc=USR get (to get program ... stack)
    LET bc=USR put (to put program n ... 0 use RANDOMIZE 255, as RANDOMIZE 0 puts FRAMES into SEED, not ... p$="p" THEN RANDOMIZE prog: LET bc=USR put:
    LET ... p$="g" THEN RANDOMIZE prog: LET bc=USR get
    ...
    Battle Bunny Battle Bunny September 2010 Development
  • 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…

    ... the screen. Each "call" uses RANDOMIZE USR... - could this be affecting the ... ). In your program, replace [B]RANDOMIZE USR x[/B] with [B]PRINT ... . Since you are using [B]RANDOMIZE USR x[/B], every time you ... you are setting the random seed to the same value, so ...
    Einar Saukas Einar Saukas 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…

    ... =Einar Saukas;532515]The USR function invokes an assembly ... your program, replace [B]RANDOMIZE USR x[/B] with [B]PRINT ... USR x[/B] to see ... you are using [B]RANDOMIZE USR x[/B], every time you ... you are setting the random seed to the same value, ...
    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…

    ... B] instead of [B]RANDOMIZE USR x[/B] to invoke ... could also code RESTORE USR to run a machine ... avoids the problem of resetting SEED.

    [B][Edit ... VAL r$ (I had RANDOMIZE VAL r$ before) and ... generation i.e. a RANDOMIZE near the beginning of the ...
    Paddy Coleman Paddy Coleman May 2011 Sinclair Basic
<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…
  • List of RANDOMIZE USR code effects?Hi chaps,<br /> Does anyone have one of these please?<br /> Thanks.
  • 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…
  • RANDOMIZE USRI always thought that this particular basic command was not intuitive!<br /> <br /> If I understand correctly is means run the code from the memory a…
  • 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…
  • 'usr 0 mode'Can anybody explain why some programs can't be just loaded after turning spectrum on but you must type 'usr 0' before loading them?

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