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<1234567…34>
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... I should select the correct rom first, before calling this ... />
    Bit 4: ROM select. ROM 0 is the 128k editor ... four ROMs are:
    ROM 0: 128k editor, menu system ... syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    bverstee bverstee April 2010 Hardware
  • Varios +3(e)DOS questions?I'm converting tape games to disk, for being used in my +3e. I'm trying to convert them to standard BASIC loaders, so files could be copied using BAS…

    ... about the worst case (standard +3DOS):

    - How many ... the memory map must be +3DOS ROM and RAM 5,2,7 ... 23296 or the copy at ROM.

    - I've ... +3 BASIC has initialized +3DOS. Do I need to do ... disk? Did they use +3DOS calls or did they access ...
    Zup Zup May 2013 Development
  • Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …

    ... I was reading through the +3DOS ROM disassembly. Could the carry flag ...
    u6c87 u6c87 September 2013 Development
  • 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…

    ... MC and it uses the 3DOS ROM routines and RAM paging to ... that swapping the +3 48k ROM with the original Sinclair one ... to swap in another ROM (bank 4->ROM). This improved things ...
    TomD TomD May 2019 Development
  • Formating a Floppys for +3Hello, I have use the zx32 emulator in Spectrum +3 model. i have trying to format a 720 Ko diskfile, but it don't work. I get everytime a 180 Ko of…

    It won't make a difference which emulator he uses - the +3DOS ROM format routine will only format to 180k. You need to get a 720k +3DOS formatting program.
    cyborg cyborg February 2002 Games
  • +3 Disk Dumping, Your Problems ?Hi folks, I believe many people who read these forums are in possetion of +3 Disks as listed on the SDP projects' pages. I'd like to know the main …

    you must be a glutton for punishment, cy! I know my way round z80 pretty well but when I tried disassembling the +3dos rom it was like pissing against the wind! Soul destroying work :)
    +CotL-DS +CotL-DS February 2003 MIA/STP/SDP
  • +3 Disk Dumping, Your Problems ?Hi folks, I believe many people who read these forums are in possetion of +3 Disks as listed on the SDP projects' pages. I'd like to know the main …

    ... when I tried disassembling the +3dos rom it was like pissing against ... when I disassembled the +3 ROM and *loads* of +3 protected ...
    Woody Woody February 2003 MIA/STP/SDP
  • The Black And Grey Spectrum......I think I got this right - Black Speccy - +2 Grey Speccy - +2A Is this right......... I had a +2 along time ago and Frank Bruno's boxing would not…

    +3Dos Rom is present, it's essential for full RAM access to say the least.
    dasteph dasteph October 2004 Sinclair Miscellaneous
  • +3 assembler questionI was wondering if anyone could give any suggestions as to how to get this bit of code working on the +2A/+3 in 128k mode. It works on the +128k/+2 i…

    ... indicating that the 48K BASIC ROM 3 is paged in.[/QUOTE ... the interrupt routine invokes the +3DOS ROM to do something to the ...
    chev chev August 2010 Sinclair Basic
  • +3 DosHello i have a question Where I can find the information on direct programming of the controler +3DOS? The ports,commands, delays . All informati…

    ... disassembly of the +3DOS ROM (ROM 2 of the +3 ROM set) available here ... towards the end of the ROM, if that's what you ...
    glancaster glancaster August 2010 Development
  • ZX Spectrum +3 Query...Hi all, As common, I brought down my Spectrum from the attic the other day to have another stab at getting it running. I knew from the past it was a…

    ... /> b) an understanding of the +3DOS rom
    c) an understanding of ...
    guesser guesser March 2011 Hardware
  • Timex Floppy Disk Drive emulation discussionI feel embarrassed for starting this topic because I can't contribute with actual code, but this is a new attempt to simplify and present what the Ti…

    ... TOS 3" disk images to +3DOS images (thank you). While we ... CP/M FS, as in +3DOS. There's one extension: ... Come up with a modified +3DOS version so that it can ... probably be done with stock +3DOS, by loading a suitable XDPB ... require actual patching of the +3DOS ROM.
    John Elliott John Elliott July 2011 Emulators
  • Empire! Help neededCan anyone convert the listing in the Tipshop to Multiface pokes? Im having a hard time with this game, over 15 years playing it, now I could do wit…

    ... to be available. Is the +3DOS rom locked or is it still ... the question(s) remains. Is +3DOS still available in USR 0 ... rely on the routines from +3DOS or does access the disk ...
    zxbruno zxbruno September 2011 Games
  • Faster interfaces for data loading?Hi! I'd like to know which is the simplest interface to build WITHOUT using the +3e rom. I'm quite bored to load data using PC soundcard to real spec…

    ... Zetr0's solution need +3e ROM?[/QUOTE]

    I assume ... this is additions to the +3DOS rom.

    I'm currently ... is trivial). The main spectranet rom module that handles all the ...
    guesser guesser May 2012 Hardware
  • Wolfenstein / Doom for 48k SpectrumHi, is there any game / demo of this kind that runs on 48k machines? Thanks.

    ... esxDOS? Or does it uses +3DOS ROM calls?

    [QUOTE=Ivanzx ...
    Encarnado Encarnado November 2012 Games
  • Internal modern 1.44MB 3.5 drive for +3Hello! this [url]http://www.secarica.ro/html/plus3_hardware.html#3and5inchdrive[/url] says that modern 1.44MB 3.5 driver are unusable as interval …

    ... under the impression that the +3DOS rom cannot do that. I always ...
    guesser guesser December 2012 Hardware
  • Disabling the +3 disk buffer; yes, but how?I would like to disable the +3 disk buffer in order to retrieve those 4K from the machine's RAMdisk. By reading the computer manual and some posts on…

    you can't do it directly from basic as it needs to have the +3DOS rom paged in and obviously that means the basic rom is paged out.
    guesser guesser February 2013 Sinclair Basic
  • Disabling the +3 disk buffer; yes, but how?I would like to disable the +3 disk buffer in order to retrieve those 4K from the machine's RAMdisk. By reading the computer manual and some posts on…

    ... understand how to call +3DOS routines from BASIC. I ... remember exactly if the +3DOS ROM uses Page7 of RAM or ... it clearly states that +3DOS does in fact use RAM7 ... to page in the +3DOS environment, which can be ... full access to the +3DOS ROM, so let's continue ...
    The_Bert The_Bert February 2013 Sinclair Basic
  • Varios +3(e)DOS questions?I'm converting tape games to disk, for being used in my +3e. I'm trying to convert them to standard BASIC loaders, so files could be copied using BAS…

    ... , the memory map must be +3DOS ROM and RAM 5,2,7 ... guess +3 BASIC has initialized +3DOS. Do I need to do ...
    John Elliott John Elliott May 2013 Development
  • Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …

    ... I was reading through the +3DOS ROM disassembly. Could the carry flag ...
    Alcoholics Anonymous Alcoholics Anonymous September 2013 Development
  • Are there any custom +3 DOS file systems?I'm looking to see if there are any custom +3 DOS disk file systems available rather than the 40 track, 9 sector, 512 bytes/sector (I think that is r…

    ... not familiar enough with the +3DOS ROM to know whether you can ...
    guesser guesser January 2014 Hardware
  • +3 Disk drive motorHi, I'm creating a disk file menu selector. I was wondering how to turn off the +3 drive motor and the motor timeout check from Basic (poking the co…

    ... call ANY routine in the +3DOS ROM, you must first set the ... routine, you must page in ROM 2 (obviously), and also RAM ... you can call your desired +3DOS routine - always remember to set ...
    The_Bert The_Bert February 2014 Development
  • +3 Disk drive motorHi, I'm creating a disk file menu selector. I was wondering how to turn off the +3 drive motor and the motor timeout check from Basic (poking the co…

    ... call ANY routine in the +3DOS ROM, you must first set the ... routine, you must page in ROM 2 (obviously), and also RAM ... you can call your desired +3DOS routine - always remember to set ... , I forgot about paging for +3DOS configuration before calling a +3 ...
    Speccy_James Speccy_James February 2014 Development
  • My new Spectrum +3 has no start menu.Hi all, I recently took delivery of my 'new' Spectrum +3 from a Fleebay auction. So I serviced the drive on Saturday as it had a snapped drive belt …

    If the rom chips were swapped it would try to boot the +3DOS ROM. This would just crash if I'm not mistaken since it starts with a bunch of NOPs then the string "PLUS3DOS"
    guesser guesser February 2014 Hardware
  • My new Spectrum +3 has no start menu.Hi all, I recently took delivery of my 'new' Spectrum +3 from a Fleebay auction. So I serviced the drive on Saturday as it had a snapped drive belt …

    ... 40093 holds the +3DOS ROM and the 48k ROM so if you have ... 48k Amstrad (c) prompt that ROM is fine. The fact that ... tells you that the first ROM is also fine.

    ROM 3 though :confused:
    guesser guesser February 2014 Hardware
  • Creating actual floppy disks using .dsk files on the SpectrumHello ZX friends I have a +3 and diskette related question. I have a +3 with an external 3.5" floppy disk drive and a divIDE+. Is there a way I can …

    [QUOTE=memrah;771726]Can it access the CF card contents on a divIDE+?[/QUOTE]
    The +3e ROMs allow you to mount partitions on Disk/CF as though they were +3DOS devices. Software that uses the +3DOS ROM calls just sees it as a giant floppy disc.
    guesser guesser June 2014 Sinclair Miscellaneous
  • Frontend for the +3e projectHi, I have recently finished building the 8-bit simple interface and installed the +3e ROMs into my spectrum +2A (Back model) and it is working fine …

    ... ]where f$ is a valid +3DOS filename string and the file ... same as using the regular +3DOS ROM routines. All the entry points ...
    guesser guesser June 2014 Development
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... it switches from ROM3 (48k rom) to ROM1 (128k syntax ... mode, high bit of ROM selection. The four ROMs ... are:
    ROM 0: 128k editor, menu system ... 128k syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    FrankT FrankT March 2017 Announcements
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... it switches from ROM3 (48k rom) to ROM1 (128k syntax ... four ROMs are:
    ROM 0: 128k editor, menu system ... syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    ROM 3 with following commands, ...
    Geco Geco March 2017 Announcements
  • ZX Nuvo 128..Hi There, I have built the ZX Nuvo 128 by Superfo, but it has a problem. The machine is working, but the video signal is completely bonkers. I've …

    ... , this port controls the ROM that is switched into the ... port as there are +3DOS routines that will achieve the ... The four ROMs are:
    ROM 0: 128k editor, menu system ... 128k syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    Claudius Claudius June 2017 Hardware
<1234567…34>

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