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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
  • Saving space...Hi Folks, Looking for ways to save some memory in a program I am writing. In a number of places I have the following code: [CODE]xxxx PAUSE 1: …

    ... /> [CODE]xxxx PAUSE 1:
    RANDOMIZE USR 64564[/CODE]

    Am ... = 5 bytes
    RANDOMIZE = 1 byte
    USR = 1 byte
    64564 ... /> Any other tips for saving space?

    Many thanks
    Paddy Coleman Paddy Coleman February 2011 Sinclair Basic
  • 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]
    SPACE, this happens:
    [img] ... 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
  • 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
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... code at 50000. Then type RANDOMIZE USR 50000. This will create a ... one of the
    ; extra space stored earlier
    ld de ... start of the
    ; extra space becomes the offset, stored
    chev chev January 2007 Development
  • 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
  • New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…

    ... the game/program once the RANDOMIZE USR command is used. The output ... both the correct CLEAR and RANDOMIZE USR values for that specific compressed ... into memory with plenty of space for the system variables and ...
    ASM ASM November 2010 Announcements
  • Empire "Mega" PatchI've been posting [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0001619"]Empire[/URL] related bits and pieces [URL="http://www.worldofspectr…

    ... your 128K machines into either USR 0 or 48K mode before ... 0,8;"Play Empire Tape": RANDOMIZE USR 27392
    100 DATA 221 ... -SHIFT[/B] and [B]BREAK-SPACE[/B] - you can see when ...
    jp jp November 2011 Development
  • tiny routine to shift RAMTOP & stackCompressing some data areas above RAMTOP and wanting to make the released space available for BASIC arrays, I needed to move RAMTOP without using CLE…

    ... wanting to make the released space available for BASIC arrays, I ... 23730,lo_val: POKE 23731,hi_val: RANDOMIZE USR topram
    TOPRAM: LD DE ...
    Battle Bunny Battle Bunny November 2011 Sinclair Basic
  • AZIMUT / Frecuency spectrum[code]start DI LD HL,#7F40 LD D,#58 loop LD B,#00 bucle1 LD A,H IN A,[#FE] XOR A,C AND A,L J…

    ... ROM memory.

    Bar space to exit.

    print ... /> This can run in basic RANDOMIZE USR start
    Z80user Z80user February 2012 Development
  • 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 ... change as appropriate) and hit SPACE on the Sinclair each time ... for you to press the space key. Then stop spxfr, insert ... rate (19200).

    Hit SPACE now.

    The Speccy ...
    Volker Volker March 2012 Emulators
  • What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…

    ... )

    when run using RANDOMIZE USR location i just get 'B ... player.
    call wspace ; display space over player.

    ; ... colours.
    ld a,32 ; SPACE character.
    rst 16 ; display ...
    Saboteur Saboteur May 2012 Development
  • BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…

    ... LOAD "bifrost_h4"CODE
    * 50 RANDOMIZE USR VAL "32768"
    *
    * Original ... 's usually some additional empty space on the sides of the ...
    Einar Saukas Einar Saukas August 2012 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
  • Hardware description - BETA DISK interfaceExist more versions and clones of BETA DISK interface. Beta disk 48, beta disk 128, brasilian clones of beta disk 48, russian clones of beta disk 128…

    ... -DOS command line call via RANDOMIZE USR 15616 (jump to #3D00).
    space).
    - original BETA128 interface disconnect ...
    velesoft velesoft August 2013 Hardware
  • Return to basic from sna created by Z80 compilerHow can I go back to basic when running sna created using Z80 Assembler ([url] http://www.worldofspectrum.org/utilities.html#crossass [/url])? For e…

    ... (as intended) but after presing "space" the emulator restarts.
    < ... code and run it with RANDOMIZE USR 31500 everything works well - ... color and after pressing "space" I am back to ... changes color and after pressing "space" emulator restarts (tried several ...
    princm princm January 2015 Development
  • Automating creation of multi-part .tap filesI'm experimenting with Zeus (Windows cross-assembler not the native one) because it has source debugging. So far it looks very promising. Up unti…

    ... least I have 12KB of space to grow into, lol.
    40 RANDOMIZE USR 32768
    [/code]

    colonel32 colonel32 December 2016 Development
  • Less MIA - Peker AssemblerMIA and also missing from the database! [img]http://oi66.tinypic.com/16hw67a.jpg[/img] Peker Assembler TZX https://app.box.com/s/vdniq5c6r30…

    ... usage snapsnot
    RANDOMIZE USR 59000 - compiles the code
    RANDOMIZE USR 40000 - runs ...
    REM defbs - followed by space separated bytes. Define bytes
    REM defws - followed by space separated words (short). Define words ...
    Swanny Swanny April 2017 MIA/STP/SDP
  • z88dk : FIle Handling in C on the +3e environment under Win 764bitHello my fellow WoSers! I am wondering if someone can help me solve this little pickle of z88dk / Windows using +3e Filesystem. So a little inf…

    ... is pretty empty 4MB of space available.

    I can ... to and read from this space in BASIC, by saving programs ... /> 30: LOAD "e:"
    40: RANDOMIZE USR 32768
    9998: STOP
    Zetr0 Zetr0 June 2017 Development
  • New Utility ZXSTLC[b]New Utility ZX Spectrum Tape (& Disk) Loader Creator[/b] I made this utility to easily create tape and +3 disk loaders for my projects and have…

    ... .e. 32768
    | equivalent to RANDOMIZE USR xxx (note has to > ... is compressed so the blank space will not increase the size ...
    TomD TomD August 2020 Brand new software
  • How to write a simple BASIC* horizontal scrolling game (Tutorial) [b]How to write a simple BASIC* horizontal scrolling game[/b] In this tutorial, we will be talking about how to write a simple BASIC* horizont…

    ... ,201
    100 LET t=USR 60000
    300 PRINT AT ... not doing the more popular "RANDOMIZE USR 60000" because we actually use ... it? We just check the space just to the right of ... =0
    100 LET t=USR 60000
    200 PRINT AT ...
    Timmy Timmy September 2020 Development
  • Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…

    ... CLEAR 57343: REM Leave some space for shadow screen buffer

    500 RANDOMIZE USR 63488
    510 NEXT i ...
    Volker Volker February 2021 Software
  • 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 …

    ... on square G6 ("S" for "space", presumably)
    ...etc.

    RANDOMIZE USR 34900 and a clock starts ...
    Ed Ed February 2002 Games
<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…
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  • 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…

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