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<1234567…34>
  • 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…

    ... In order to call a routine in the +3 DOS ROM, you need to ... the manual, and on page 200 it clearly states ... , you first have to page in the +3DOS environment, ... ROM, so let's continue with the call to DOS SET 1346: (Page ... well, we can now page back to the BASIC ...
    The_Bert The_Bert February 2013 Sinclair Basic
  • 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…

    ... if there are any custom +3 DOS disk file systems available rather ...
    Speccy_James Speccy_James January 2014 Hardware
  • .DSK format documentation?Unfortunately the web page at WOS points to a broken link for documentation on the .DSK format for +3 discs, and the FAQ wiki doesn't have any docume…

    Unfortunately the web page at WOS points to a ... on the .DSK format for +3 discs, and the FAQ wiki ... dumping the contents of some +3 discs and I want to ... need only to use the +3 DOS ROM functions to make a bitwise ...
    Winston Winston June 2015 Emulators
  • Accessing +3 DOS with DivIDE enabledI'm thinking about making a tool that copies files from a FAT partition to a IDEDOS partition. Currently, I've got two problems: - Getting the ESX…

    ... can I use.
    - Accessing +3 DOS with my DivIDE enabled.
    3 DOS but I guess I can ... into a USR 0 mode (+3 paging and ports are enabled ... for 48k and not the +3 one.

    Anybody has ...
    Zup Zup September 2016 Development
  • Flashing eeproms for a +3 - which ROM on what chip?I am wondering which ROMS go on which chip? I know the +3 as two ROM chips, ROM A and ROM B, and that I need version 4.0 roms (images from http://…

    ... know the +3 as two ROM chips, ROM A and ROM B, and that ... , 1, 2 and 3).

    Does ROM A have 0 and ... 1, and ROM B have 2 and 3? Is there a ...
    colourclash colourclash May 2019 Hardware
  • IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…

    ... interrupt for IM1 in the +3 DOS rom and it seems to do ... the interrupt counter in ram page 7 at address 58880.... I ...
    nuggetreggae nuggetreggae April 2010 Development
  • spectrum +2 tape recorder is dead helpMy +2 grey's tape recorder is not even coming on when i press play so i was wondering with the 5 cables going into a plug and then connecting on to a…

    ... 2A were built using stock +3 motherboards (without FDC chips), ... same software as +3... they haven't the +3 DOS ROM (+2A have ... that ROM). In [url=http ... ://www.worldofspectrum.org/BackToThePlus3/]this page[/ ...
    Zup Zup November 2011 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…

    ... routine loaded at $fe10 in page 3. This will usually switch back ...
    Battle Bunny Battle Bunny May 2013 Development
  • 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…

    ... can I store in a +3 DOS floppy? And when using + ... be a file in +3 DOS and still be COPY-able ... a +3DOS call, the memory map must be +3DOS ROM and RAM ... br />
    - What about DOS INIT? My loader would launch ... BASIC, so I guess +3 BASIC has initialized +3DOS. ...
    Zup Zup May 2013 Development
  • Universal disk drive controller project - information needed! Hello Speccy world! I am a hardware developer from Russia and old Speccy fan. Currently i am starting a project aimed at joining Western and Easter…

    ... choice was BetaDisk with TR-DOS system which is very ... RAM and requires 1024kb of memory. Beta2005 would enable this solution ... direct ROM calls or direct FDC programming)?
    3. +D, D80, etc page ... feature for something (by issuing CALL #0066)? There is a ...
    Sonic Sonic June 2005 Sinclair Miscellaneous
  • Universal disk drive controller project - information needed! Hello Speccy world! I am a hardware developer from Russia and old Speccy fan. Currently i am starting a project aimed at joining Western and Eastern…

    ... choice was BetaDisk with TR-DOS system which is very ... RAM and requires 1024kb of memory. Beta2005 would enable this solution ... direct ROM calls or direct FDC programming)?
    3. +D, D80, etc page ... feature for something (by issuing CALL #0066)? There is a ...
    Sonic Sonic June 2005 Development
  • So... you want to format your 3.5" as 720K eh?Well, i've been trying to get hold of an application to make proper use of my 3.5" +3 floppy disks but i haven't been able to find any. I stumbled up…

    ... proper use of my 3.5" +3 floppy disks but i ... ; Signal DOS FORMAT
    CALL DISK ; Call the subroutine in ROM
    ... LD A,16 ; Page ROM 0 and RAM PAGE 6
    LD ( ...
    NaMcO NaMcO December 2008 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).…

    ... !! (call monitor/debugger "Devastace" from tr-dos rom)
    ! (start DOS and show ... (show basic info - ramtop, used memory, etc...)
    * (start utility " ...
    ISO ROM after reset no erase memory , show only ...
    velesoft velesoft April 2010 Sinclair Basic
  • Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…

    ... +2A / +3.

    Port 0x1FFD on the Pentagon switches memory banks ... accessible only from the TR-DOS ROM.

    Bit 2 - ... to an additional (Free) page of ROM. This mode has the ... connection of an additional page of ROM occurs regardless of the fact ...
    ajmoss ajmoss August 2010 Hardware
  • How to load a +3 dos file from disk to memory in z80Hi all again, Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination? Thanks.

    Hi all again,

    Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination?

    Thanks.
    Speccy_James Speccy_James February 2014 Development
  • Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php I found the following code: [code] CHADD equ 23645 ; Location of SOS variable CHADD ld…

    ... /> ld (CHADD),HL ; changed.
    call 15619
    BACK ld HL ... /> TEMP defs 2 ; Label allocating memory for temporary storage

    This runs the TR-DOS-Commands in RAM at adress ... adress LOAD via a CALL to TRDOS/Betadisk-ROM (15619 on TRDOS ...
    Luzie Luzie October 2019 Development
  • +3 how to detect if a file exist ?Need help. I am making a generic menu to my compilations over the spectrum +3. Exist some way programatically to detect if some file exists on the d…

    ... br /> ;so we dont page out something important.
    ;When messing with memory pages from a program ... responsible for calling the ROM routine.
    ... 48986 LD B,3 ;DOS channel #3
    48988 CALL 265 ;call DOS_CLOSE
    spodula spodula May 2010 Sinclair Basic
  • +3 BASIC DOS_DemoI got side-tracked while working on the Op.Wolf conversion and ended up writing this +3 DOS utility which provides most of the disk functions that mi…

    ... of the DOS functions listed on page 210 of the +3 manual. The ... anything particularly critical in the +3 ROM 2 disassembly. I'll ... some time.

    The memory map uses the function GO ... page address range, g=GOSUB line. The parameters passed on each call ...
    Battle Bunny Battle Bunny December 2012 Sinclair Basic
  • IF EXIST?In MS-DOS scripting, there is an IF EXIST command that lets you check wether a file exists in disk or not. There are any way to check it out from BA…

    ... to call, but it goes something like this:
    [CODE]DOS ... ROM 3 (the 48 BASIC ROM). The RAM page at the top of
    memory ... +3DOS routines), DOS can only be called with RAM page 7 switched ... and ROM 2 (the DOS ROM) switched in at the bottom of
    memory ...
    The_Bert The_Bert October 2013 Sinclair Basic
  • Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …

    ... the screen memory and the end of the 2nd page of mode ... ]=?;
    screen_base[2]=?;
    screen_base[3]=?;
    #endif
    }
    [/ ... attached to your program calls ROM routines ( RST 16 and ... a screen they have to call a function on it ( which ...
    DonkeyPong DonkeyPong January 2007 Development
  • Odd keyboard behaviour due to a single bit failure in +3 ROMI've just fixed a spanish +3, which, among normal issues (drive belt missing), presented a very strange one: the keyboard autorrepeated without a del…

    ... it possible that the ROM is malfunctioning specifically while ... /> I changed the ROM chips (mask ROM's manufactured by AMI ... of the spanish +3 ROM's from the Philip ... s address 0312h at ROM 3): original ROM has 05h here. ... that is poked into memory at address 5C05h ( ...
    mcleod_ideafix mcleod_ideafix December 2009 Hardware
  • Some TR-DOS technical questionsHi forum, I sincerelly hope this was the right section of yours to ask this kind of stuff in. (else return facepalm;) Anyway, here's a couple of que…

    ... b]

    The TR-DOS ROM's #3ef3 has a routine ... wait for its completion with call #3fe5 (don't mix ... stay that way when I call the #3ef3 next, right? ... sector no. (0 - 128)
    +3 - sector length (0-128b, 1 ... -256b, 2-512b, 3-1024b)
    +4 - crc ...
    Hikaru Hikaru April 2010 Development
  • A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…

    ... installation can be found on page 4 of this thread [URL ... is that it uses more memory (obviously), but I find that ... uchar backwalls[];


    // Memory to define the background.
    uchar levelb[32*24*3];


    // Refresh the ...
    Timmy Timmy January 2012 Development
  • Working with TR-DOS formatted disks on a +3These days I am thinking about *.TRD files on ESXDOS and velesoft's PROFI Interface. Then my neuron make a spark... Why not read real TR-DOS format d…

    ... read real TR-DOS format disks on +3 with 3,5" FDD.
    dos"]http://www.worldofspectrum.org/forums ... ?t=33336&highlight=working+dos[/URL]
    where said finally ... /> If we can put TR-DOS Rom inside FlashRomBoard, maybe now is ...
    RockRiver RockRiver November 2012 Sinclair Miscellaneous
  • Hardware description - BETA DISK interfaceExist more versions and clones of BETA DISK interface. Beta disk 48, beta disk 128, brasilian clones of beta disk 48, russian clones of beta disk 128…

    ... rom memory.
    - From ZX basic can be external TR-DOS command line call ... this can collide with tr-dos rom memory)
    BETA128 use on ... = number of floppy drive (0-3 = up to 4 drives)
    bit 3 = Head load timing
    bit ...
    velesoft velesoft August 2013 Hardware
  • Hardware description - DivIDE interface[B][U]DIVIDE interface / DivIDE 2k11[/U][/B] [B][U]The main description[/U][/B] DIVIDE is IDE interface with own external memory. Thanks to very goo…

    ... DIVIDE memory.[/I]

    [B]Automapper support also tr-dos emulation ... instructions from external divide memory. This TR-DOS mapper is 100% compatible ... ram page 3, then this ram page is write protected (bacause ram 3 contain ROM ...
    velesoft velesoft August 2013 Hardware
  • The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…

    ... br /> Custom ROM in ROM-A
    DRAM in ROM-B with ...
    SysRam:

    RAM0 - DOS

    - .TAP file redirection ... dom morris for +3 except it uses page 7 so it suxx ... br /> - swap partition
    - virtual memory up to 4Mb

    bverstee bverstee October 2015 Hardware
  • WANTED Machinecode Routine for Paging in Betadisk TR-DOS v5 ROMI try to build a small MCode-program which writes the TR-DOS-ROM v4 / v5 to RAM adress 40000 an up. It´s working on TR-DOS v4 / Betadisk 48k: C…

    ... -program which writes the TR-DOS-ROM v4 / v5 to RAM adress ... /> CALL 15366 ;TR-DOS v4 #3C06 = 15366 dez = DOS / ROM ON
    ;TR-DOS v4 ... ;Set DOS Routine 0 (INIT/RESET DOS)
    CALL 15635 ;TR-DOS v5 #3d13 ...
    Luzie Luzie December 2015 Hardware
  • SeBASIC Updated to version 3.2 by aowen...SeBASIC has just received an update!... Version 3.2 is now available, but it'll cost ya!... Its only $5 USD, and can be downloaded from here:…

    ... * Changed the COPY command to CALL.
    * ZXC3 version excludes ... is 128k
    3) The 3.2 rom on the other hand ... download upon purchase is the ROM, the manual, the source ... assembly for the rom and a plus2A TAP ... loaded into all RAM memory (2A/+3).
    kgmcneil kgmcneil November 2016 Announcements
  • TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…

    ... compatible mode. You could page flip between two screen pages ... knowing ROM memory locations. A machine code program only needed to call the ... header in the cartridge ROM at specific memory addresses (either 0 ... mechanism via an OUT 244,3. The other 8% of ...
    Sparky Sparky December 2002 Sinclair Miscellaneous
<1234567…34>

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