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<1234567…34>
  • Extended Microdrive FormatterHello all, After a few months on a steep learning curve, some heavy duty reading and plenty of trial and error I?ve written an extended microdrive f…

    [QUOTE=Crisis]
    ... USR "A"-Codelength-1
    [/QUOTE]< ... crash the system:

    CLEAR USR"A"-CodeSize-1:LOAD ... CODE ... USR"A"-CodeSize-1

    ...
    Jonathan Harston Jonathan Harston July 2006 Development
  • Die Rolling sound?Digging out my old Fighting fantasy programs (so far unsuccessfully... thanks c60) had me wondering how I'd program it these days. Hopefully better,…

    ... 201
    1 CLEAR USR "a"-11: FOR a=USR "a"-10 TO ... USR "a"-1: READ b ... =1 TO 8: LET a=USR (USR "a"-10): PAUSE RND*5 ...
    Battle Bunny Battle Bunny July 2010 Sinclair Basic
  • More memoryHi all... can anyone help, Is it possible to get more memory for basic pref' in Basin.... 40 odd k is just not enough !

    If you don't use UDGs, add that space to the Basic workspace: [b]CLEAR USR"u"+7[/b]
    Jonathan Harston Jonathan Harston November 2012 Sinclair Basic
  • Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…

    ... a whole day typing in "CLEAR USR 61439" manualy every time before ...
    wibble wibble September 2013 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…

    ... at memory to see any CLEAR / USR sentence.
    Zup Zup February 2019 Sinclair Basic
  • Project OTLA / k7zx (high speed loading)Hello, I am proud fan of zx spectrum (I do not have speccy, but clones (Didaktik Gama, Didaktik M)), I am using portable CD player to load games. Al…

    ... the high speed loading projects OTLA (former k7zx) and tried ... programming specialists who can download Otla sources and check if ... are possible to implement ?
    Otla project page:
    [url] ... run the game
    b) - clear address space behind 60000 and ...
    wlcina wlcina November 2009 Sinclair Miscellaneous
  • .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…

    ... the following:
    [code] 10 CLEAR 32767
    20 LOAD "" CODE ... 32768,16384
    30 RANDOMIZE USR 32768[/code]

    Out ... don't bother performing the CLEAR during development as I keep ... well clear of RAMTOP.

    ...
    BloodBaz BloodBaz August 2012 Hardware
  • Loading games from MP3 playersI read on here ages ago about people running Speccy games from MP3 players or iPods.. Would I be right in assuming that you would plug said player i…

    ... with no anticopy tricks so USR and CLEAR addresses can be detected ... these limtations you can use otla tool (and then open .SBB ...
    decicoder decicoder May 2009 Hardware
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... :3"
    I am using otla player.
    Am I doing ... I get
    10 CLEAR VAL "25000": RANDOMIZIZE USR VAL "23781": REM ...
    Brian Brian July 2014 Hardware
  • 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…

    ... 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
  • 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…

    ... to start it by RANDOMIZE USR xxxxx. Which parameters should I ...
    MrShhh MrShhh March 2003 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…

    ... of useful POKES, or RANDOMIZE USR statements with interesting effects?
    USR 1216 to RANDOMIZE USR 1327. This should ...
    The Mighty Dopethrone The Mighty Dopethrone October 2003 Sinclair Miscellaneous
  • What's wrong with YS94...Hello, I'm Steve Anderson. You might remember me from such magazines as Your Sinclair and, um, that's it. I was the one who wrote a platform game in …

    ... ' artwork, nice and big and clear, photocopied from the originals. (You ... a review - the talk of USR 0 mode being required, and ...
    Stevatron Stevatron October 2004 Sinclair Miscellaneous
  • Saving BASIC code as CODE... can't start programHi guys! I'm trying to create an adventure game for the Speccy in BASIC, called The Legend Of The Red Dragon. I'm using the excellent BASin to code…

    ... created a loader with CLEAR 29999 and RANDOMIZE USR 30000 at the ...
    pottyboy pottyboy May 2005 Sinclair Basic
  • anyone got a nice clear pic of a Speccy keyboard?Im making a spectrum keyboard keyword reference widget for the OS X dashboard, basicly at the mo it's just gonna be a picture of a spectrum keyboard …

    ... having trouble finding a nice clear, reasonably high res picture to ...
    Sharopolis Sharopolis May 2005 Sinclair Miscellaneous
  • '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?

    Can anybody explain why some programs can't be just loaded after turning spectrum on but you must type 'usr 0' before loading them?
    PopoCop PopoCop November 2005 Sinclair Miscellaneous
  • CLEAR does not RESTORE the DATA pointer??According to the Spectrum manual, one of the things that a CLEAR command does RESTORE the DATA pointer. Either it doesn't actually do this, or some…

    ... of the things that a CLEAR command does RESTORE the DATA ... program:
    [CODE]
    10 CLEAR 32767
    20 READ a ... first command it sees is CLEAR 32767, which should do a ... isn't restored by the CLEAR command.
    trellis trellis September 2006 Sinclair Basic
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... way to proceed is to CLEAR basic down to 32767, and ... my program directly (not using USR but by the use of ... , and somehow replicate the basic CLEAR), how do i safely "exit ...
    rbsfou rbsfou January 2007 Development
  • Mode 2 Tile Editor SourceA Timex Mode 2 Tile Editor incorporating a byte mirror table. The compiled version is available in the CSSCGC 2008 collection from the WoS archive. …

    ...

    ;
    ; RANDOMIZE USR 46000 ; copy tiles 0-127 ... CLS
    ; ----------
    ;
    ; Clear both screen areas in mode ... m2cls_2:
    ld (hl),a ; clear first byte
    ld bc ... 17FF ; 6133 remaining bytes to clear
    ldir ; wipe screen ...
    chev chev January 2007 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…

    ... CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR ... in DE
    and a ; clear the carry flag before
    ld (atflg),a ; clear AT flag
    rst 08h ...

    ld h,$00 ; clear H
    ld l,a ...
    chev chev January 2007 Development
  • 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…

    ... here people mentioning those RANDOMIZE USR lines which when entered, seem ... first ever found was RANDOMIZE USR 1280 which shows blue and ...
    alexsut alexsut April 2007 Sinclair Miscellaneous
  • How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…

    ... code routine which will
    clear the first 20 rows of ... in memory), which can
    clear the top third, two thirds ... F

    The 'thirds' clear method is as follows :
    This runs extremely quickly, the clear appears to
    happen instantaneoulsy ...
    bobbyjaykid bobbyjaykid July 2007 Development
  • Blok*Load on Multiface 128Spinning this off into a new thread to avoid cluttering up the original: [url]http://www.worldofspectrum.org/forums/showthread.php?t=17999&page=7[/u…

    ... 31/10/2007
    40 CLEAR 32767
    50 LET t ... data": STOP
    120 RANDOMIZE USR 32768
    130 DATA 221 ...
    StuBruise StuBruise October 2007 Sinclair Miscellaneous
  • OpenZXRom v2007-12-31 releasedI've just put out a new release of OpenZXRom, the freely licensed replacement for the Spectrum ROM rewritten from scratch with no Amstrad code: [url…

    ... a Basic loader (namely CLEAR, LOAD, RANDOMIZE and USR), meaning that a ...
    gasman gasman December 2007 Development
  • k7zx and a real SpectrumI've recently got a real Spectrum (48k) and I am having problems converting TZX images to play on the Spectrum. Up to now I've always used emulators …

    ... seems to require the "Clear" & "Randomize USR" settings to exist in ...
    citroen citroen January 2008 Games
  • If you've got a real working MF128,IF1, and MDR combo can I ask a favour?So, if you do have a real Multiface 128, Interface 1, Microdrive and, oh yeah, a Spectrum (48k or 128k) that are all working, can I ask a favour...? …

    ... invoke with:
    ;
    ; PRINT USR 32768
    ;
    ; a result ... ),sp
    ld bc,0 ; clear bc
    ld de,gethook ...
    jp jp February 2008 Hardware
  • A warning for anyone considdering Virgin Media as an ISPAfer virgin clevery removed all the files on my web space I was unable to gain access to it via my client CuteFTP. I have attempted to contact them a…

    ... Bin, Dev, Docs, Etc and Usr folders all of which I ... instructions need to be made clear on the VirginMedia Broadband support ...
    Scottie_uk Scottie_uk February 2008 Chit chat
  • BASIC Keyword ReferenceRealised that the Sinclair Basic section would be a better place for discussion of BASIC keywords, so for reference the old thread is in [thread=2005…

    ... PAPER : E : SYM + C
    CLEAR : K : X PAUSE : K : M ... + F
    LEN : E : K USR : E : L
    LET : K ...
    icabod icabod March 2008 Sinclair Basic
<1234567…34>

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  • 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…
  • 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…
  • 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…
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