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<1234567…34>
  • can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…

    i have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that would be great

    TIA
    CodenameV
    CodenameV CodenameV August 2009 Development
  • Great Speccy Demo - With Documented +3 Disk loader routineEveryone here should check this out. Its a demo called "condommed" which I have just finished converting from TRDOS disk to tap file and +3 disk. It …

    ... just finished converting from TRDOS disk to tap file and +3 ... disk. It was quite a challenge ... have documented my +3/+3e disk loading routine in it.

    nuggetreggae nuggetreggae December 2009 Development
  • Screen$ command, ROM routineHi All, Does anyone know which ROM routine to call for the Screen$ command (and/or the ATTR command)? Any comments on how well it works or the spee…

    ... />
    Does anyone know which ROM routine to call for the Screen ... what's what in the ROM disassemblies I've read (any ...
    R-Tape R-Tape January 2011 Development
  • Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …

    ... problem with the pixel address rom routine at 8874.

    Going ... by the ZXSpectrum Rom Dissassembly book, I'm trying ... be holding 128 after the routine is run?

    Tobo
    Tobo Tobo September 2015 Development
  • I don't think I'm getting the $22AA Pixel-Add rom routineDear all, I'm misunderstanding how the PIXEL-ADD rom routine works. My code... [code]ld b,175 ld c,1 call $22AA ld (hl),a ret[/code] So…

    ... misunderstanding how the PIXEL-ADD rom routine works.

    My code ... that, I'm assuming the rom routine at $22AA will convert the ...
    Tobo Tobo March 2016 Development
  • What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…

    ... by +3DOS while doing read operations from the disk drive?
    disk. I know there's already ... a disk version, but somehow it ... page 7 is used by +3DOS (as stated in the ... (page 5). After all disk loads finished, I built the ...
    mcleod_ideafix mcleod_ideafix March 2011 Development
  • Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…

    ... /> ld a,7 ;ram 7, rom 2
    call paging
    routine at 48641 which backups some ... to page 6, copy the disk loading routine to 23900, jumps to ... a, 22 ;select ram 6, rom 3
    call pagin ; ... , 22 ;loads ram 6, rom 3
    call pagin
    BCH BCH July 2013 Games
  • +3DOS routine missing in the +3 manualThe other day I realised the details of the +3DOS DOS DELETE routine are missing in the [url="http://www.worldofspectrum.org/ZXSpectrum128+3Manual/ch…

    ... the details of the +3DOS DOS DELETE routine are missing in the ...
    programandala.net programandala.net January 2015 Infoseek database
  • +3 disc imaging (idea + SDP)Following a bit of research, which you can probably see in the "old code" thread, I had an idea for a bit of software that may be useful (for me, and…

    ... detect a copied disk. If the disk copied to has ... mentioned something about this disk protection system way back ... ROM/RAM stuff) is call some +3DOS routines to log in the disk ... my preffered disk format), by calling the +3DOS read track routine, dumps ...
    DEATH DEATH April 2006 Development
  • +3 BASIC and RST 8I've been working on adding commands to the BASIC interpreter, in a similar style to how Interface 1 does it (catch the RST 8 error trap). This works…

    ... Syntax (+3 BASIC)
    ROM2: +3DOS
    ROM3: 48K BASIC
    disk motor on interrupts and the ... attempt to call any other ROM routine, you're going to have ... actions when calling any standard ROM routine other than RST10, RST18 or ...
    glancaster glancaster February 2009 Development
  • Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…

    ... . It then jumps to the ROM routine, and starts loading as normal ... the checksum byte), the return routine changes the RAM page, resets ... additional problems for converting to disk (+3DOS / TR-DOS / other) formats ...
    ajmoss ajmoss August 2010 Development
  • Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…

    ... . It then jumps to the ROM routine, and starts loading as normal ... additional problems for converting to disk (+3DOS / TR-DOS / other) formats?[/QUOTE ... with Spectrum clones and maybe disk systems I never heard of ... convert a game to the disk system if it has a ...
    Speccyman Speccyman August 2010 Development
  • Custom Menus on the ZX Spectrum +3Today, my Friends, i have the pleasure of presenting a program i have written which gives a set of custom menus on the +3. The main features of my p…

    Doesn't +3DOS (and thus by extension the ... screen corruption when using the disk?

    As to the ... calculator that call the relevant ROM routine and then return the paging ...
    AndyC AndyC October 2017 Sinclair Basic
  • Custom Menus on the ZX Spectrum +3Today, my Friends, i have the pleasure of presenting a program i have written which gives a set of custom menus on the +3. The main features of my p…

    ... /> [quote="AndyC;925463"]Doesn't +3DOS (and thus by extension the ... screen corruption when using the disk?[/quote]
    Andy, you ... calculator that call the relevant ROM routine and then return the paging ... .
    Too bad the +3DOS does that thing to the ...
    The_Bert The_Bert October 2017 Sinclair Basic
  • New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…

    ... banks and includes the patched ROM routine):

    1) Loader code ... one big file on the disk as 3DOS can stop and start ... : do not add autorun basic routine to disk, useful if you want ...
    TomD TomD May 2019 Development
  • A couple of random questions......because, why not? (1) USR0 mode on the +3/+2A/B I know of its existence, I know how it's used, and I have some games that require it to work o…

    ... is executes the 48K BASIC ROM, which resets a particular flag ... , prevents the ROM’s IRS from checking the +3DOS disk motor timeout, which ... there some extra routine in the +3/+2A/+2B ROM that allowed ...
    Ast_A_Moore Ast_A_Moore March 2020 Sinclair Miscellaneous
  • Calling ROM routinesFirstly, sorry if this is the wrong forum to post this in, but I wasn?t quite sure under which heading is best fitted. I?m trying to figure out how…

    ... how to invoke the LOOKVAR ROM routine to discover where a variable ... don?t cover invocation of ROM routines at all.

    trellis trellis July 2006 Development
  • 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…

    ... the hardware but the ROM set is pretty much ... 3: The original 48 BASIC ROM

    The Spanish ... UK (switch to UK editor ROM)

    USR 0 ... enabled.
    SPECTRUM selects ROM 3 with the additional hardware ... who don't use +3DOS this ROM set is an even ...
    chev chev June 2009 Hardware
  • 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 ... Example i was watching the Rom routine called [B]PLOT-SUB[/B ... pop bc

    This routine is the same that in ... B]. But what is the routine to handle a DRAW ?< ... that are on the Rom just to use them.< ...
    arfgh arfgh June 2010 Sinclair Basic
  • How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…

    ... info related to the draw rom subroutine. The Line-Draw require ...
    arfgh arfgh June 2010 Sinclair Basic
  • Using the ROMs PRINT routineI really am starting from scratch again it seems, but how do you utilize the ROM routine to print characters, I think you point te BC register to an …

    ... how do you utilize the ROM routine to print characters, I think ...
    daveysludge daveysludge January 2012 Development
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    ... know I could use the ROM routine (It would suffice, any pointers ... I'm asking for a routine :)

    No need for ...
    na_th_an na_th_an October 2013 Development
  • 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…

    Here is routine for fast detection of zx rom / computer model.

    routine for detect zx rom type from 48basic rom.
    I ... br /> Routine return register BC=0-7 for ZX rom type or ... B=255 for unknown rom. Routine is small, but detection will ...
    velesoft velesoft January 2015 Sinclair Miscellaneous
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... [code]
    ;Redefine Keys routine
    ;By Ast A. Moore ...
    call 8859 ;inside ROM routine BORDER ($2294)
    call ...
    ;A crude debounce routine to prevent
    ;registering ... br /> call $3b5 ;ROM beeper routine
    pop ix ; ...
    Ast_A_Moore Ast_A_Moore October 2017 Development
  • TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…

    ... . I have altered the ROM-routines at #556 (LOAD ... save from /to (hard)disk or CD-ROM.

    ... your harddisk, diskette or CD-ROM.

    It ... in TAP-file using the ROM-routine to load (like OUTRUN ... hold an altered ZX81 ROM with capability to load ...
    Dr BEEP Dr BEEP July 2004 Sinclair Miscellaneous
  • TAP conversion project?I was wondering if there's any concerted effort to produce TAP versions of games only available in TZX or Z80/SNA/SLT format? Or are snapshots consid…

    ... confident about hacking the multiload routine to use headered files. In ... multiload seems to use the ROM routine LD-BYTES to load the ... if that counts as a ROM loader (for the purposes of ... to perhaps put it on disk, but that's a whole ...
    StuBruise StuBruise September 2006 Games
  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... Creator
    Beta ROM
    Beta ROM 2
    Speech< ... action (simply the displaying ROM routine to save a file).
    ROM file embedded in them (Beta disk interface ROM perhaps?). ... checksum operations on the embedded ROM files. The captured screenshots ...
    Digital Prawn Digital Prawn October 2007 Games
  • +3 BREAK-key in FUSEI'm trying to locate the +3 BREAK key (for use in D.I.C.E) in the FUSE emulator. However, reading the docs and reading the source does not immediate…

    ... .I.C.E. uses the ROM routine for key scanning and requires ... my changes back to the disk image claiming it's the ... wrong disk... Anyone know of another +3 ...
    The President The President June 2009 Emulators
<1234567…34>

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HitBox

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3dos 613 904
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  • can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…
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