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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
  • PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…

    ... expect:
    PRINT IN 231, RANDOMIZE USR 8, 58 or 102 paged in ... goes normal.
    Because address 8 still pages in the PlusDlite ...
    bverstee bverstee February 2014 Hardware
  • 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
  • Just brushing up on old skills...Ahead of XLR-8 I thought it best I get a little hacking practice in after all these years ;) Chose Op Wolf 128K to pick on this fine evening! lol […

    Ahead of XLR-8 I thought it best I ... ,a: NEXT n
    20 RANDOMIZE USR 49104
    30 DATA 221 ...
    Woody Woody November 2005 Development
  • 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…

    ... at 50000. Then type RANDOMIZE USR 50000. This will ... /> l_on_l: ld c,$08 ; 8 bytes to write
    ll_lp ... /> r_on_r: ld c,$08 ; 8 bytes to write
    rr_lp ... /> l_on_r: ld c,$08 ; 8 bytes to write
    lr_lp ... /> r_on_l: ld c,$08 ; 8 bytes to write
    rl_lp ...
    chev chev January 2007 Development
  • help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…

    ... />
    start with CLS, then RANDOMIZE USR 32000

    and this ... top of a group of 8 pixels
    jr nz,addone ... top of a group of 8 pixels
    jr nz,nextblock ...
    bigjon bigjon February 2008 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
  • General purpose full screen input routineHi Folks, One of the things that annoyed me back in the 1980s with most BASICs was the lack of a full screen "formatted" input function. You could …

    ... 2)=11: LET i(3)=8: LET i(4)=2: LET ... 2)=17: LET i(3)=8: LET i(4)=1: ... i$
    9130 REM i(8)=Decimal Point
    9140 REM ... 7)=0:
    LET i(8)=0
    9240 REM *---------------------*
    9260 PAUSE 0:
    RANDOMIZE USR 3438: REM ROM CLS-LOWER ...
    Paddy Coleman Paddy Coleman October 2010 Sinclair Basic
  • Any MCODE programmers fancy a challenge?Hi Folks, I have been using the Micro-Print utility in the archive and found it to be really good. It is the one that provides 32, 36, 42, 51, 64 a…

    ... is in "+STR$ no+" pitch": RANDOMIZE USR 64564: LET li=li+1 ... =ATTR
    370 REM INK+(8*PAPER)+BRIGHT+FLASH
    380 ... REM 0-7+(8*0-7)+64+128
    400 REM RANDOMIZE USR 64564
    410 REM --------------------------[/CODE ...
    Paddy Coleman Paddy Coleman November 2010 Development
  • 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 ... of ZXBOOT is 44100hz 8 BIT unsigned mono WAV or ... both the correct CLEAR and RANDOMIZE USR values for that specific compressed ...
    ASM ASM November 2010 Announcements
  • 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
  • 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 ... Sinclair Joystick #1 (6/7/8/9/0) in both the ... ; BRIGHT 1;AT 0,8;"Play Empire Tape": RANDOMIZE USR 27392
    100 ...
    210 DATA 33,32,8,34,131,127,-1674: REM ...
    jp jp November 2011 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 ... was necessary here) at 19200,8,N,1, inserted one cartridge ...
    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 ... .
    rra ; next bit (value 8) reads key 4.
    call ...
    Saboteur Saboteur May 2012 Development
  • Developing apps for ZX Spectrum with SDCCDue to troubles with makebin utility which always starts coversion at memory address 0x0000 and can only produce binaries < 32KB, it can't be used to…

    ... menu option and run by RANDOMIZE USR 32768.

    1) Makefile ...
    tstih tstih July 2012 Development
  • BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …

    ... LOAD "bifrost_h1"CODE
    * 50 RANDOMIZE USR VAL "32768"
    *
    * Original ... ()
    {
    // initialize variables
    randomize();
    for (f = 0; f ... ; NUM_TILES; ++f) {
    tile[f] = 8 + rand()%18;
    lin[f ...
    Einar Saukas Einar Saukas July 2012 Development
  • BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…

    ... LOAD "bifrost_h2"CODE
    * 50 RANDOMIZE USR VAL "32768"
    *
    * ... py, rand()%2 == 0 ? rand()%8 : BIFROST_STATIC + 8 + rand()%18);
    }
    if (tile[f] < 8) {
    // next frame
    ...
    Einar Saukas Einar Saukas July 2012 Development
  • BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…

    ... "bifrost_h3"CODE
    * 50 RANDOMIZE USR VAL "32768"
    *
    ... BIFROST_setTile(px, py, rand()%8);
    break;
    ... BIFROST_setTile(px, py, BIFROST_STATIC + 8 + rand()%18);
    ...
    Einar Saukas Einar Saukas July 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"
    *
    * ... *(target+g*2) = (left > (8-shiftLeft));
    *(target+g*2 ... /> lastK = 0;
    printAt(20, 8);
    printf("%d", frames);
    Einar Saukas Einar Saukas August 2012 Development
  • .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…

    ... a .tapein using esxdos 0.8 on a standard divIDE (57c ... "" CODE 32768,16384
    30 RANDOMIZE USR 32768[/code]

    Out ... divIDE, switched on (esxdos 0.8 ). Inserted the tape file using ...
    BloodBaz BloodBaz August 2012 Hardware
  • BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…

    ... "bifrost_h5"CODE
    * 50 RANDOMIZE USR VAL "32768"
    *
    *BIFROSTSPRITE2TILE = 8;
    BIFROST_enableSprites();

    ... HRC2COL(hrcPlayer)+1, tilegroup+8);
    }
    ...
    Einar Saukas Einar Saukas August 2012 Development
  • BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…

    ... LOAD "bifrost_h6"CODE
    * 50 RANDOMIZE USR VAL "32768"
    *
    * ... 2
    #define EMPTY_TILE 8
    #define NUM_ENEMIES 4 ... = -1;
    if (hrcPlayer > 8) {
    dhrcPlayer = -2;
    ...
    Einar Saukas Einar Saukas September 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
  • Use PLAY without the 128 ROMHere's a little thing I wrote called SoftPLAY: [url]http://www.worldofspectrum.org/forums/showthread.php?t=45259[/url] Now you can use the PLAY comm…

    ... set up the channel, [b]RANDOMIZE USR 63240[/b]. You only need ... you can use [b]PRINT #8;[/b] in place of the ...
    chev chev October 2013 Sinclair Basic
<1234567…34>

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  • 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.
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  • Happy Birthday Randomize UsrDon't know who you are, but have a good one dude! Hope you have many more.<br /> <br /> :)
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