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<1234567…34>
  • List of RANDOMIZE USR code effects?Hi chaps, Does anyone have one of these please? Thanks.

    ... />
    These addresses hold the ROM for the Spectrum BASIC. A ... right way by the ROM.

    RANDOMIZE USR 1331 is such ... is a part of the ROM-LOADER from tape. With the ...
    Dr BEEP Dr BEEP May 2005 Sinclair Basic
  • logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…

    ... , like this

    PRINT USR start,A$,C$,

    ROM:

    PRINT USR 14500;c;"CD ...
    Dr BEEP Dr BEEP September 2010 Development
  • how to fix instructions on screenI have a problem with my sequencer. I want the top half of the screen to stay fixed but allow the note values to print without pushing the instructio…

    I thought the ROM had an entry point for ... split screen pictures didn't scroll off the screen with the ... pretty sure that used the ROM scroll routines.
    Pobbit Pobbit November 2016 Sinclair Basic
  • multi-scroll m/c subroutine for BASICArising from recent posts, here's a scrolling routine that will manage multiple left/right scrollings for any (sensible) line width or step; (ie. whe…

    Arising from recent posts, here's a scrolling routine that will manage multiple left/right scrollings for any (sensible) line width or step; (ie. where width is
    Battle Bunny Battle Bunny October 2012 Sinclair Basic
  • PLanning ZX-PC Interface releasesHello everyone. I am working on some additional functions to the ZX-PC Interface. Might take a while before all functions are operational, but here …

    ... used from Diskette/CD-ROM/Harddisk
    Selection ... used from Diskette/CD-ROM/Harddisk
    Selection ... used from Diskette/CD-ROM/Harddisk
    Selection ... used from Diskette/CD-ROM/Harddisk
    Selection ... br /> Also SCROLL added to PRINT USR 14700,d and ...
    Dr BEEP Dr BEEP January 2007 Development
  • Usr 0 ?I'm not sure I've ever seen this explained before, but why do some programs (only demos, as far as I can see, so far) need USR 0 mode when run on a 1…

    ...
    I know that USR 0 simply causes the CPU ... Specific second ROM), the same as PRINT USR 0, LET ... ROM too.

    But what advantages for the program does USR ... that might require a USR 0 style setup) could ... 48K ROM in place, and do whatever else USR 0 ...
    ewgf ewgf December 2008 Sinclair Miscellaneous
  • New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…

    ... j: PRINT AT 0,6;USR 33001;AT 0,0;"score ... ),a
    ld hl,23263 ;scroll road
    ld de,23295 ... ;source of random bytes in ROM
    ld d,0
    bigjon bigjon December 2008 Development
  • Horace & Spiders ROM, boxed Elite, Deus Ex Machina, Ultimate stuff -- and loads moreHey guys, So my painstakingly built Speccy collection has all gotta go! [url]http://shop.ebay.co.uk/merchant/boblikely[/url] (scroll down for the S…

    ... .uk/merchant/boblikely[/url]
    (scroll down for the Spectrum stuff ... ) * [B]Horace & The Spiders ROM cart[/B] * [B]Dun Darach ...
    rkrd rkrd March 2009 Sales
  • ANN: ZX Spectrum +2g ROM setI'm working on another modified ZX Spectrum. This one is based on the +2A. There's quite a lot of work to do on the hardware but the ROM set is prett…

    ... on the hardware but the ROM set is pretty much finished ... /> 3: The original 48 BASIC ROM

    The Spanish editor ... to UK editor ROM)

    USR 0 selects ROM 1 with all ... hardware enabled.
    SPECTRUM selects ROM 3 with the additional hardware ...
    chev chev June 2009 Hardware
  • Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…

    ... /> ;print car
    ;scroll road
    ;random road left ... ; "Your score was "; USR 33000
    Now RUN ... />
    CHAPTER 4 - scroll and move the road, keep ... speed.
    To scroll the road down the screen ... /> Choose a location in ROM where the are 256 random ...
    bigjon bigjon November 2009 Development
  • ISO ROM 128 with TR-DOS 5.05(cz)This is new correct version of ISO ROM for ZX + BETADISK. Some extra basic command is designed specially for use in conmination with TR-DOS 5.05(cz).…

    ... new correct version of ISO ROM for ZX + BETADISK. Some ... /debugger "Devastace" from tr-dos rom)
    ! (start DOS and ... "BETA DISC EDITOR")
    RANDOMIZE USR 15610 (start packer "TOMPACK")

    ISO ROM after reset no erase memory ...
    velesoft velesoft April 2010 Sinclair Basic
  • Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …

    ... the routines on the spectrum ROM ?
    Ad for the Spectrum ... /> Example i was watching the Rom routine called [B]PLOT-SUB ... . When i made the Randomize USR 32768, it resets. Why ? What ... routines that are on the Rom just to use them.
    arfgh arfgh June 2010 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…

    ... bug-fixed version of the ROM command in RAM. The timing ... code runs faster than the ROM version. The click gaps you ... up the channel, [b]RANDOMIZE USR 63240[/b]. You only need ...
    chev chev October 2013 Sinclair Basic
  • ZX rom type detectionHere is routine for fast detection of zx rom / computer model. [URL="http://velesoft.speccy.cz/other/ZXROMDETECT.zip"]http://velesoft.speccy.cz/othe…

    ... for fast detection of zx rom / computer model.

    USR xxxx

    ... SPANISH
    255 = UNKNOWN ROM

    Source code ... for detect zx rom type from 48basic rom.
    I ... original ZX Spectrum 48 rom contain byte #BF at ...
    velesoft velesoft January 2015 Sinclair Miscellaneous
  • ROM PRINT routine issuesHi all, I am using the ROM print routines a lot in my assembly program and I'm experiencing issues. I am changing the system variable DF CC to po…

    ... />
    I am using the ROM print routines a lot in ... then it will assume a scroll of one character has to ... character. I'm assuming the ROM print routines are updating other ...
    Kevin_C Kevin_C December 2016 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…

    ... printed out is contained in ROM starting at address 5010 decimal ... printed is fixed and in ROM, you may end up with ... of more use when using ROM routines in a machine code ...
    na_th_an na_th_an April 2005 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... , I have no idea what 'USR 3282' and '1000*ATTR' etc ... />
    The USR 3282 is a call to the ROM routine that ... system variable to stop the scroll? message coming up.

    LET s=s+USR 3282-800: LET x=x ...
    Matt_B Matt_B May 2007 Development
  • Question about something I don't know what is called.I am interested in reading about something which I don't know what is called (duh). I am looking for (online/offline) reading material which explain…

    Reading up on the ROM loader is definitely a good ... idea. A copy of the ROM disassembly is good to have ... /> POKE 32778,128
    RANDOMIZE USR 32768

    Note that ... bars, though they don't scroll (an artefact of the speed ...
    Phu Phu September 2008 Hardware
  • Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…

    ... fact, if you get a Scroll prompt in a program and ... resets the machine like a USR 0 on a 128 or ... 2 and put the Cookie ROM in and the game auto ...
    Shaun.Bebbington Shaun.Bebbington August 2010 Sinclair Miscellaneous
  • Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…

    ... /> ;print car
    ;scroll road
    ;random road left ... ; "Your score was "; USR 33000
    Now RUN ... />
    CHAPTER 4 - scroll and move the road, keep ... speed.
    To scroll the road down the screen ... /> Choose a location in ROM where the are 256 random ...
    buzzy buzzy September 2012 Development
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... Vickers, who wrote the Spectrum ROM.
    [*]Built-in support ... were present in the original ROM.
    [*]Number codes dropped ... [*]Only 32K ROM supported by devices that force USR 0 mode.
    [*]Scroll counter increased.
    [*]Set ...
    chev chev October 2013 Sinclair Basic
  • Is there a way to suppress error R Tape Loading Error in Basic when trying to load only part of fileHi, is there a way to suppress error R Tape Loading Error in Basic when trying to load only part of file. E.g.: I have a Tape-Code-File Start f…

    ... to use bits of the ROM without having to write any ... 23671
    22 LET bc=USR 3197
    30 RANDOMIZE er ...
    Battle Bunny Battle Bunny October 2017 Sinclair Basic
  • New WoS CD-ROM Project[url="http://neuro.zensoft.net/woscd/"]http://neuro.zensoft.net/woscd/[/url] I'm about to embark on an ambitious project ... to create new up-to-dat…

    ... />
    - WoS Basic Archive CD-ROM (1 disc) - UKP 5 inc ... ;P

    1x CD-ROM incl. Games, Emulators, Remakes & ... also considering a tech CD-ROM, excluding the games, but including ...
    neuro neuro March 2002 Announcements
  • Emulators and ROM'sHi - This is my first post here, although I have been visiting WoS for ages.... I have been on quite a few multi-platform sites that offer downloads …

    ... good collection of emulators and ROM's that they would be ...
    LeeT LeeT April 2002 Wanted
  • 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
  • Spectrum ROMI downloaded some text files (they are actually the spectrum ROM files but in text) which can be compiled using TASM (or soemthing). I read on WOS th…

    ... (they are actually the spectrum ROM files but in text) which ...
    Anonymous Anonymous July 2002 Sinclair Miscellaneous
  • ZX PC Interface : The manual, schematics and more info... ZX &lt;-> PC Interface ------------------- Contents 1) The ZX &lt;-> PC Interface 1.1) What is it? 1.2) What does it do? 2) Install…

    ... Distribution
    4.1) ROM
    4.2) Interface
    PRINT USR 14500;D;"*.*"
    This ... ROM will do syntaxchecking for the PRINT-instruction.
    However after USR ... the
    original ROM, which makes headerless loading ...
    Dr BEEP Dr BEEP December 2002 Sinclair Miscellaneous
<1234567…34>

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