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<1234567…34>
  • 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
  • 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…

    ... ].

    [code]
    org 23296 ; Start of Code
    LD ... job...
    [code]
    10 RANDOMIZE USR 23296
    20 IF PEEK 23316 ...
    BloodBaz BloodBaz May 2009 Sinclair Basic
  • Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve

    ... RESTORE
    40 FOR N=23296 TO 23370: READ A: POKE ... ,A: NEXT N
    50 RANDOMIZE USR 23296
    60 DATA 237,91 ...
    stefrobb stefrobb November 2010 Sinclair Basic
  • machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…

    ... 10 LOAD "runner" CODE: RANDOMIZE USR 23296
    SAVE "loader" LINE ... br /> SAVE "runner" CODE 23296,length
    LOAD "loader"< ... had to put a RANDOMIZE USR in the BASIC. ... DEFB $F9,$C0,$B0 ;RANDOMIZE USR VAL "53743"
    DEFM ...
    Battle Bunny Battle Bunny August 2011 Sinclair Miscellaneous
  • machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…

    ... testing I determined that the RANDOMIZE USR was causing this, but removing ... />
    [code]
    ORG $5B00 ;23296
    LD HL,(23613) ;(ERR_SP ... I put the LOAD "" CODE: RANDOMIZE USR 23296 in a BASIC auto-run ...
    Battle Bunny Battle Bunny August 2011 Sinclair Miscellaneous
  • machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…

    ... if putting the LOAD "" CODE: RANDOMIZE USR 23296 commands on one line or ...
    Battle Bunny Battle Bunny August 2011 Sinclair Miscellaneous
  • Spellbound 48k issues with ToastrackIve been busy converting a lot of games to +D disk, everything was going smoothly until I tried Spellbound, loading in 48k mode on the toaster it res…

    ... *"m";1;"spell$" SCREEN$
    RANDOMIZE USR 23296
    SAVE *"m";1;"spellC ... $:LOAD *"m";1;"spellC" CODE: RANDOMIZE USR 26627
    SAVE *"m";1 ...
    Jimmy Jimmy March 2012 Games
  • Your Sinclair Smash Tips - Corrected ListingsOver at Hercules' [URL="http://craigsretrocomputingpage.eu5.org/smashtips/index.html"]YS Smash Tips site[/URL] he has a list of hacks that don't work…

    ... =0
    110 FOR X=23296 TO 23435
    120 READ ... INSERT SHADOWFIRE TAPE"
    160 RANDOMIZE USR 23296
    1000 DATA 243,49 ...
    jp jp August 2012 Games
  • Your Sinclair Smash Tips - Corrected ListingsOver at Hercules' [URL="http://craigsretrocomputingpage.eu5.org/smashtips/index.html"]YS Smash Tips site[/URL] he has a list of hacks that don't work…

    ... =0
    20 FOR F=23296 TO 23454
    30 READ ... DATA LINES": STOP
    60 RANDOMIZE USR 23296
    70 DATA 221,33 ...
    jp jp August 2012 Games
  • Your Sinclair Smash Tips - Corrected ListingsOver at Hercules' [URL="http://craigsretrocomputingpage.eu5.org/smashtips/index.html"]YS Smash Tips site[/URL] he has a list of hacks that don't work…

    ... =0
    20 FOR f=23296 TO 23443
    30 READ ... ,0: REM level
    110 RANDOMIZE USR 23296
    120 DATA 221,33 ...
    jp jp August 2012 Games
  • Your Sinclair Smash Tips - Corrected ListingsOver at Hercules' [URL="http://craigsretrocomputingpage.eu5.org/smashtips/index.html"]YS Smash Tips site[/URL] he has a list of hacks that don't work…

    ... =0
    30 FOR I=23296 TO 23334: READ A: POKE ...
    jp jp October 2012 Games
  • Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…

    ... .

    [code]
    org 23296
    ld a,27
    RANDOMIZE USR 23296[/code]
    Battle Bunny Battle Bunny July 2013 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... "CODE 16384,6144
    44 RANDOMIZE USR 23296
    45 BORDER 1: PAUSE ... .ASM [code]

    org 23296

    REVEAL:
    di ...
    Battle Bunny Battle Bunny February 2014 Development
  • Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…

    ... 23336,195: RANDOMIZE USR 23296
    3 POKE 49734,59: RANDOMIZE USR 49605[/CODE]
    USR 0 mode
    jp jp August 2014 Games
  • clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…

    ... bytes.
    [code]
    org 23296
    ld de,16384
    30 RANDOMIZE USR 23296
    40 PAUSE 0: POKE ...
    Battle Bunny Battle Bunny October 2014 Development
  • clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…

    ... bytes.
    [code]
    org 23296
    ld de,16384
    30 RANDOMIZE USR 23296
    40 PAUSE 0: POKE ...
    Atari_Jetman Atari_Jetman October 2014 Development
  • Tape to +3 disk transferWhen the first basic part was merged from tape, to be saved to disk, and it looked like this: [img]https://i.imgur.com/UQx1hc2.jpg[/img] how di…

    ... ? How did you get the randomize usr, the same way Zup was ... the relocation code started at 23296 $5B00 and there is also ... "CODE 16384,21500
    20 RANDOMIZE USR 23296
    [/code]


    dbolli dbolli February 2019 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
  • Breakpoints and other questionsSome games have LDIRs, LDDRs, ANDs and XORs before they jump to the real start address (and some other stuff that I don't understand yet). If I want …

    ... as well, followed by a Randomize Usr. For games that occupy 49152 ... : cls
    20 load "" code : randomize usr 16384

    The little ... 1704 bytes from 16398 to 23296, where the code originally was ...
    zxbruno zxbruno June 2008 Emulators
  • 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
  • Merlin has risen from the grave!Those of you following the Merlin saga [thread=29902]over here[/thread] might be slightly interested to know that the program is now available in the…

    ... /> RANDOMIZE USR 0 (don't just type NEW)
    LOAD "MERLIN" CODE 23296 ... ,0: POKE 28939,0
    RANDOMIZE USR 30950

    Controls: Kempston ...
    Battle Bunny Battle Bunny June 2010 Games
  • 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
  • Arkanoid Hack - Your Sinclair Smash TipsRemember that Arkanoid hack in YS Smash Tips that didn't work? It does now... [CODE] 10 REM ARKANOID HACK 20 CLEAR 65535: LET C=1: LET D=23295 …

    ... >=0 AND A0 THEN RANDOMIZE 1256+USR 23296
    50 IF T ...
    jp jp October 2011 Development
  • 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
<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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