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<1…9101112131415…34>
  • Spectrum Ethernet update...in which a toastrack 128K machine prods a machine outside of my LAN for the first time. [url]http://spectrum.alioth.net/doc/index.php/Current_eve…

    ... subsequent return to the main ROM, such that it works properly ... in compatibility with other paged rom devices, specifically mass storage.
    disable. For example, if using a ...
    Winston Winston March 2008 Hardware
  • MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…

    ... page is mapped instead of ROM.[/QUOTE]

    What exactly ... />
    Is it possible to disable this behaviour, or to change ...
    glancaster glancaster April 2008 Development
  • MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…

    ...
    OUT 23, 0 = ZX ROM
    OUT 23, [B]105 ... on port 23 value 10000000 = rom page 0).

    Use ... reset feature - OUT 23,11xxxxxx disable MB02 memory.

    VELESOFT
    velesoft velesoft April 2008 Development
  • FAO Winston, Why won't this work?I have redesigned my Flash Rom board, yet again, so that it might perhaps work... any glaring flaws? [IMG]http://alistairsserver.no-ip.org/flash%20…

    ... so you get effectively two ROM sets (in two 64K ... OE lines from the ROM socket on the Spectrum ... Both OE outputs from the ROM sockets will be relatively high ... each that allows you to disable them via an edge ... the Spectrum is not accessing ROM, are high, both Q3 ...
    Winston Winston May 2008 Hardware
  • FAO Winston, Why won't this work?I have redesigned my Flash Rom board, yet again, so that it might perhaps work... any glaring flaws? [IMG]http://alistairsserver.no-ip.org/flash%20…

    ... so you get effectively two ROM sets (in two 64K ... OE lines from the ROM socket on the Spectrum ... Both OE outputs from the ROM sockets will be relatively high ... each that allows you to disable them via an edge ... the Spectrum is not accessing ROM, are high, both Q3 ...
    guesser guesser May 2008 Hardware
  • MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…

    ... BS-ROM+BSDOS intallator.

    New features:
    - disable NMI ... NMI routine in BS-ROM and call any other ... 48rom)
    install BS-ROM+BSDOS to MB02 page 5 ... OUT 23,64+5 = bs-rom/bs-dos
    OUT ... 23,0 = original zx rom

    [url]http ...
    velesoft velesoft May 2008 Development
  • Any BBC aware Specchums out there?After the UK101 and VIC20 emulators I've moved my sights onto emulating a BBC computer. This emulator will be different though in that it will be a Z…

    The BBC BASIC ROM converts graphics and sound commands ... /O generated by the BASIC ROM goes via OSWRCH (write) and ... TCP/IP. A modified DNFS ROM could be used to emulate ... to VDU 6/21 (enable/disable VDU). My next tasks will ...
    Jimmy Jimmy August 2008 Development
  • Any BBC aware Specchums out there?After the UK101 and VIC20 emulators I've moved my sights onto emulating a BBC computer. This emulator will be different though in that it will be a Z…

    ... have to write an alternative ROM ($0000-$3FFF) to implement ... also now have the ROM disassembly which is the ... out. Even if you disable the screen device with VDU ... copyright status of the ROM before publishing it! I ... 16K for the language ROM and 6K for the ...
    Jimmy Jimmy August 2008 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…

    ... running some stuff in the ROM including a keyboard scan which ... /> If you stick a DI (Disable Interrupts) at the top, your ...
    BloodBaz BloodBaz September 2008 Hardware
  • ZX Spectrum (16K) sound/beepHi all, I think I'm in right place now, I've tried to find an answer how to generate two channel sound using ZX Spectrum 16K. Only think I've found …

    ... the routine in Spectrum's ROM, there's only one loop ... /> ;
    org 32768
    DI ; Disable interrupts.
    ; These next two ...
    Matt_B Matt_B November 2008 Sinclair Basic
  • 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…

    ... memory(basic) and set 48 rom with enable 128kB memory paging ... "SPECTRUM", but this command will disable 128kB memory and will available ... .

    This is modified rom file for ZX128 and ZX128 ...
    velesoft velesoft December 2008 Sinclair Miscellaneous
  • 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…

    ... 'unused' stretch of the 16K ROM.[/quote]

    True, and ... memory(basic) and set 48 rom with enable 128kB memory paging ... "SPECTRUM", but this command will disable 128kB memory and will available ... br />
    This is modified rom file for ZX128 and ZX128 ...
    ewgf ewgf December 2008 Sinclair Miscellaneous
  • FatWare source codeHi, Does anyone have the latest FatWare source code for the DivIDE? I've e-mailed Baze about it but got non-delivery notices. The last I heard he'd…

    ... more bugs:
    - need disable IM2 interrupt in screen backup ... (bad return adress to zx rom)
    - absent system data ... code with LOAD command to rom area)
    - impossibility load ... any block to rom area (original ZX ignore load ...
    velesoft velesoft January 2009 Hardware
  • Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …

    ... PatternTable)/2

    DI ;Disable Interrupts

    LD SP ... we have wrapped around to ROM
    CP 0
    ... NZ,InversionFill1 ;Wrapped around to ROM?
    RET

    ... NZ,InversionTest1 ;Wrapped around to ROM?
    RET

    ...
    Digital Prawn Digital Prawn January 2009 Games
  • TAP filesI'm trying to figure out how to make TAP files and am none the wiser. Tried downloading Taper, got it working but it was one of the unfathomables. I …

    ... "Use tape traps" will also disable the ability to create a ... blocks saved by the standard ROM SAVE command so you will ...
    Fred Fred January 2009 Emulators
  • Atic Atac speed.Dear all, Excuse the noob question, but does anyone know how fast Atic Atac runs at? What I mean is, frames per second, or the amount of pixels the…

    ... THE INTERRUPTS...
    ;****************************************

    ; disable ints before calling
    ; hl ... />
    Hiss: ld hl,0 ; rom pointer

    Hisso: ld ...
    frobush frobush January 2009 Games
  • Cro S2008Hi everybody!!! I hope this is right thread? :-) I want to share with you my new project. I call it ?S2008?? The idea was to build Spectrum48K clo…

    ... - CF RAM schematic) disable /ROMCS = disable internal ZX rom chip. But all external ... ROMCS to log.1(disable internal ZX rom) + connect external memory. If ... rom/ram from external interface. For fix this collision you must disable ...
    velesoft velesoft January 2009 Hardware
  • original DIVIDE and RESIDOSExist external interface with MB02 memory (512kB-1MB) memory. It's possible connect to ZX Spectrum before DIVIDE interface and used MB02 versions of …

    ... )
    BATTERY
    TRANSISTOR(for disable ROMCS)

    If MB02 ... detect if CPU access to rom area). System on DIVIDE can ...
    velesoft velesoft January 2009 Hardware
  • Machine code and Basic system variablesSpectrum system variables (I mean 48KB model) are essential for Basic. But what if I started my machine code program and it's never going to return t…

    ... somehow.

    If I disable interrupts with DI command, can ... you don't use any ROM call which might rely on ...
    rich_chandler rich_chandler January 2009 Sinclair Basic
  • Machine code and Basic system variablesSpectrum system variables (I mean 48KB model) are essential for Basic. But what if I started my machine code program and it's never going to return t…

    ... code program, but, you must disable interrupts or write your own ...

    - you cannot use ROM loader to load data into ...
    Ralf Ralf January 2009 Sinclair Basic
  • Understanding the StackSorry folks. I guess I'm going to be a pain for a little while. Hope it's ok with everyone. I'm currently studying the stack and wrote the little pr…

    ... and reset. Why? Because the ROM interrupt routine is still active ... another is:
    [CODE] di ; disable interrupts
    ld sp,stack ...
    evilpaul evilpaul January 2009 Development
  • Girlfriend's computerI'm on my girlfriends computer atm -- one which she has asked me to sort out. It is a Vista computer which has reportedly slowed down since she fir…

    ... Error Reporting tab
    Check Disable error reporting
    ***************************************************************
    Increasing ... longer access your
    CD ROM's, the following registry keys ...
    psj3809 psj3809 January 2009 Chit chat
  • Detecting Spectrum modelsIs there any sure-fire way a program can detect the model of machine it's running on (48K, +, 128, +2, +2A, +3, clones) even when running in the 48K …

    ... table of 0xff in the ROM as has already been mentioned ... sloppy programming to me - why disable keyboard input on the title ...
    Fikee Fikee March 2009 Development
  • divide plus back to life , preorderI have green light form authors to made DIVIDE PLUS, anybody interested? Promise from me , fully asembled and tested DIVIDE PLUS in plastic case. Qua…

    ... appreciated :-?[/QUOTE]

    +3E rom use only IDE ports, no ... computers with +3e rom must be on DivIDE disable memory (open jumper ... use DivIDE only with +3e rom, remove jumper JP2(E) + eeprom ...
    velesoft velesoft July 2009 Hardware
  • 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…

    ... external MB02 memory can disable access to rom area for other interfaces ...
    velesoft velesoft August 2009 Hardware
  • 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 the ... initialize (followed by the Spectrum ROM). The Spectranet CPLD keeps some ... switch on the Spectranet to disable all RST 8 traps. For ...
    Winston Winston August 2009 Hardware
  • DivIDE QuestionHi all, I've been trying to work out how the DivIDE works and after reading and re-reading the DivIDE programming model document by Zilog I think it…

    ... ) DivIDE connect external memory (8kB rom + 8kB ram)
    (at adress ... 102(#66) in DivIDE rom you must write instrustion RET ... /> - If you need return with disable interrupt then jump to adress ... use own font in DivIDE rom.

    - Is also ...
    velesoft velesoft August 2009 Development
  • DivIDE QuestionHi all, I've been trying to work out how the DivIDE works and after reading and re-reading the DivIDE programming model document by Zilog I think it…

    ... external memory disable NMI button. If you jump to 48 rom then ...
    velesoft velesoft August 2009 Development
<1…9101112131415…34>

Latest Posts

  • I am currently watching.....
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