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<1…16171819202122…34>
  • How to mimic hardpaging (RST8) by softpagingA description of my experiments with porting IF1 and Opus DOS to a multipage ROM system. Someone should have found this 15 years ago. [url]http://bi…

    ... describes a way to switch between ROMs without requiring ... the content of original ROM. If you want to ... create a shadow ROM entry point, you have ... to alter the original ROM code. So, there ... "clever" hacks based on ROM content. This is why hardware ...
    baze baze February 2009 Development
  • DivIDE on Spectrum +3Hi all, Is it possible to use the DivIDE on the Spectrum +3 in 128K mode? I have the 'A' jumper set on the board, but my +3 resets into 48K mode wit…

    ... already page RAM into the ROM area, there's really no ... 128 mode support and then switch to divIDE firmware when you ... . DIVIDE detect only acces to rom area and connect external memory ... ZX bus to +5V (disable rom)

    If ZX will ...
    velesoft velesoft February 2009 Hardware
  • +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…

    ... 128K commands. Therefore the same ROM is being used for interpretation ... with the standard 48K BASIC ROM (ROM3) since this gets ... actions when calling any standard ROM routine other than RST10, RST18 ... ROM1 with the Syntax string, switch to ROM3 for the duration ...
    glancaster glancaster February 2009 Development
  • Help with faulty +2ahi everyone I'm Nuno from Portugal I think I made poopoo with a 128k +2a motherboard I had spare for testing purposes This motherboard has always …

    ... solution was to simply switch the rom chips because somehow the previous ... owner, had switch them over.
    PauloAlb PauloAlb March 2009 Hardware
  • 2 commands in 1 lineHi all, this is my first post although I have visited the web site many times, and I find it great. English is not my mother tongue, so I will try to…

    ... that supports the NMI switch.

    A ROM such as Gosh ... /> Features of the Gosh Wonderful ROM are here

    [url ...
    Geoff Geoff March 2009 Sinclair Basic
  • 2 commands in 1 lineHi all, this is my first post although I have visited the web site many times, and I find it great. English is not my mother tongue, so I will try to…

    ... /> It is always possible to switch back and forth to the ... have to revisit the gw03 ROM this year to ensure messages ...
    Geoff Geoff March 2009 Sinclair Basic
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... /> The BASIC-interpreter in the ROM makes sure this is done ... then the printroutine from the ROM is used to print the ... character.
    The ROM-routine excepts the character to ... screen (the inputlines). You can switch between the screens but that ...
    Dr BEEP Dr BEEP April 2009 Development
  • Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…

    ... , or the 'professional adventure writer' rom

    in the ZXDS ... the snapshot as a 48k rom, so didn't load it ... use. if i load the rom up in the ZXDS as ... /Files/Snapshots and try unchecking 'Switch hardware to match when loading ...
    FrankT FrankT May 2009 Emulators
  • Best homebrew games ?What are your favourite/best homebrew games you play ? I want to try and find the best Jet Set Willy/Manic Miner style games and any others. I know…

    ... ask by itself whether to switch on Pentagon).
    The SCL ... Spectrum without TR-DOS in ROM, you have to enter TR ... -CCCP machines have it in ROM.
    Mister Beep Mister Beep May 2009 Games
  • !!! Trdos Emulation On Zx !!![B]This is software emulator of TRDOS(betadisk). Yet is writed only for interface MB02+, but will ported to more other IDE interfaces with external r…

    ... 32kB EPROM serving as boot rom to load OS
    - NMI ... in SRAM with modified ZX ROM (called BSROM)
    - RTC chip ... any program that is calling ROM TAPE LOAD and SAVE routines ... tape (of course you can switch back to tape). The main ...
    omega omega May 2009 Development
  • Need to read code start and length from a +3 diskso i can transfer them to my internal ZXMMC interface and my mind has died as to how to do it (i know how to for a tape) any help or a general kick i…

    ...
    push bc
    ;
    ; Switch to +3DOS memory configuration
    ;
    ; Switch back to the 48 BASIC ROM.
    ;
    finish ...
    John Elliott John Elliott May 2009 Sinclair Miscellaneous
  • Ebay - unknown itemHi, Does anybody have any idea what the expansion card is in this auction? [URL="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=250432700319&Ca…

    ... a switch.

    although it may well be a rom booter ...
    Zetr0 Zetr0 May 2009 Hardware
  • DIVIDE - NEW FATWARE for 128kB spectrums[url]http://velesoft.speccy.cz/zx/divide/divide-fatware.htm[/url] [img]http://velesoft.speccy.cz/zx/divide/systems/fatware/fatware+2sp.gif[/img] [im…

    ... memory connection detect ZX rom type ( ROM 0 / ROM 1 ) in low ... compatible with original ZX 48 rom.


    CONTROLS< ... + T - eject selected TAP file (switch to real tape support)
    - compatibility with 128 basic (rom 0)
    - fixed exit and ...
    velesoft velesoft June 2009 Development
  • ZX Spectrum 48K firmwareCan somebody tell me in which IC the firmware is located. I mean which IC holds the "Error Codes" ? I have a Spectrum which give the Error Codes in s…

    ... IC is not a ordinary ROM - but an EPROM :-(
    Maybe ... me where to connect a switch to reset an (for surely ...
    Tommy F-H Tommy F-H June 2009 Hardware
  • Speccy +2 (Grey) peripheralsHello all, I have just bought a grey +2 to use as a workhouse whilst I keep my 128 toastrack for Sunday best. It hasn't arrived yet, however I was wo…

    ... -on hardware that contains a ROM. The most problematical in this ... - if the peripheral has a ROM, it must hold both ROMCS ... 'll usually have a "+3 switch" or a jumper to enable ... page out the main Spectrum ROM.
    Winston Winston June 2009 Hardware
  • Photos of MODIFIED ZX SpectrumsIf you have ZX Spectrum/clone with any modification(s), please release photos: (or send me your photos to --SPECCY(a)SEZNAM.CZ--, I upload all to my …

    ... /> Jos? Leandro's eprom vs rom
    [url]http://www.speccy ... /cosas/JL/ROM-EPROM/ROM-EPROM.html[/url]
    I have switch to ...
    gorski gorski June 2009 Hardware
  • Speccy meetup, Oxford, 27th JuneOver on CSS the esteemed Paul E Collins has declared that there shall be a meetup at the Gloucester Arms, Oxford, on Saturday 27 June, from around 1-…

    ... 3: The original 48 BASIC ROM

    I've ... SPECTRUM will switch to the original 48 BASIC ROM and lock ... is the only mode switch where the program is ... * Typing USR 0 will switch to the bug-fixed 48 ... /> * Typing MENUS will switch to the UK 128 editor ...
    chev chev June 2009 Announcements
  • Windows problem - please helpA friend of mine's PC (XP service pack 3 *shudder*) has a problem - when he connects a USB stick the PC hardware Blue Screen of Deaths, a known probl…

    ... behaviour.

    When you switch on the machine the USB ... the Windows XP CD-ROM into the CD-ROM drive, and then ... the computer from the CD-ROM drive if you are prompted ...
    ADJB ADJB July 2009 Chit chat
  • ANN: ResiDOS v2.25 and +3e ROMS v1.38 releasedA major new release of ResiDOS, v2.25, is now available! The most important new features are commands and functions allowing new extended streams an…

    ... mode with 16kB paging in rom area (similar as MB02+). Each ... ]
    [*]Initially, copy of BASIC ROM (eg RAM bank 0 for ... , which causes a RST 8 (switch to ResiDOS bank).
    [*]ResiDOS ... store data internally, so the switch would have to save the ...
    glancaster glancaster July 2009 Hardware
  • Broken ZX Spectrum? :(Hi! I bought a 2nd hand ZX Spectrum half a year ago. It worked perfectly fine when I first tried it. I put it back in its box which it was sent in, …

    ... hear a buzzzz when you switch on the machine?). On the ... a Spectrum with a faulty ROM chip.

    The most ... possible that the Z80 and ROM are OK, and the problem ...
    mcleod_ideafix mcleod_ideafix July 2009 Hardware
  • 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…

    ... +3DOS, but internally +3DOS will switch in the correct RAM bank ... top bank (ie load to ROM/5/2/3 configuration)
    ROM from now and then (as ...
    glancaster glancaster August 2009 Development
  • divIDE & Joystick interface / other peripheralsHi, Anyone on here with a divIDE, managed to get the divIDE to play nice with a Kempston joystick interface; specifically - a RAM Turbo joystick int…

    ... despite both having a ROM. When the Spectranet ROM is paged in ... through port from paging a ROM, because the interface on ... initialize (followed by the Spectrum ROM). The Spectranet CPLD keeps some ... return). There is a hardware switch on the Spectranet to disable ...
    Winston Winston August 2009 Hardware
  • Rainbow ZX Spectrum Emulator for TS2068Hi, See the photos attached. I recently got this through a guy on Ebay I mailed. It's a ZX Spectrum emulator addon for the Timex Sinclair 2068. I ca…

    I'd guess it has a ROM on the CS line and the equivalent of the twister board to sort out the edge connector, but I wonder what the switch does?
    chev chev August 2009 Hardware
  • Rainbow ZX Spectrum Emulator for TS2068Hi, See the photos attached. I recently got this through a guy on Ebay I mailed. It's a ZX Spectrum emulator addon for the Timex Sinclair 2068. I ca…

    ... ]I'm guessing its to switch from ZX Spectrum mode back ... /> Well, if it turns the ROM/CS line on/off that ...
    chev chev August 2009 Hardware
  • Rainbow ZX Spectrum Emulator for TS2068Hi, See the photos attached. I recently got this through a guy on Ebay I mailed. It's a ZX Spectrum emulator addon for the Timex Sinclair 2068. I ca…

    ... hooked it up. In one switch position it starts up just ... a modified version of the ROM. If you boot in Spectrum ... mode, save the ROM with SAVE "MOD-B" CODE ...
    chev chev August 2009 Hardware
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... 's now using the standard ROM font via some cunning paging ... can allow the user to switch between those different modes of ...
    gasman gasman September 2009 Development
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... to USR 0 mode (48 rom with 128kB memory)
    RESET ... - start to 48 mode (48 rom with 48kB memory)

    switch to real tape support)
    velesoft velesoft September 2009 Development
<1…16171819202122…34>

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