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<1234567…34>
  • 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…

    ... DivIDE firmware, where we have 8K ROM + 8K RAM to play with before we ... code to add (mostly duplicating ROM features that aren't available ...
    gasman gasman September 2009 Development
  • SoftRom emulation possible?Hello. Quick question to all emulator developers: How easy would it be to emulate a SoftRom? The mastering utilites for my protection system XLR-8 a…

    ... /> Rough Specifics JUPITER ACE:
    8K ROM
    8K RAM
    Z80 processor

    I use 16K RAM for ROM and with an intruptroutine I ...
    Dr BEEP Dr BEEP February 2006 Development
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... way in which emulated ROM should respond to write ... lower 16K as ROM and upper 48K as RAM works or ... when the address is ROM or RAM. This penalizes all the ... a 8k block named "fakeROM". When a block is ROM, his ... (changes the 16k Spectrum ROM by 8k ROM + 8k RAM).
    zx81 zx81 September 2011 Emulators
  • Faulty Issue 1Hi all, thought I'd document my efforts in getting another speccy working. I've never done this before so please bear with me... I recently took a p…

    ... if I ordered a lower RAM module he'd send me ... info on how his lower RAM performed.

    A few ... in.

    Zorn's Ram module plugged straight in and ... right for a 16K speccy? (8K ROM, 8K RAM?) The manual didn't bother ...
    namtip namtip November 2015 Hardware
  • OPUS.ROMI was downloading the new RealSpectrum emulator with low level access to disks like Opus Discovery disks. But now I need the ROM file. Where can I ge…

    ... disks like Opus Discovery disks. But now I need the ROM file ... /> # Multiprint-Rom: mprint.rom # ROM file for Multiprint
    # SpecMate-Rom: specmate.rom # ROM file for ...
    wilko0070 wilko0070 September 2005 Emulators
  • Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…

    ... made my z80 computer with 2K ROM 32K RAM.
    It has an ... THE DATA TO BE SAVED (8K)
    LD DE, 33000 ;STARTING ...
    Robin Robin August 2011 Announcements
  • Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …

    ... pair.

    ;; RAM-FILL
    L11DC: LD ... ROM - $3F ?
    JR NZ,L11DC ; Back to RAM ... ROM - $3F ?
    JP NZ,L11DA ; Back to RAM ... /> ;; RAM-READ
    L11E2: CP H ; Have we reached ROM - ...
    antoniovillena antoniovillena April 2012 Development
  • Jimmy's UK101 emulatorThe [url="http://www.mediafire.com/?cmxmzkax9jb"]Compukit UK101 emulator[/url] works best when running on the ZX Spectrum SE.

    ... amount of RAM that the UK101 had which was 8K. I'm ... I went for the 8K model instead. All 8K is genuinely available ... Spectrum. 8K Basic ROM, 2K monitor ROM, 8K 6502 RAM, 1K video RAM and 2K character set ROM = 21K ...
    Jimmy Jimmy August 2008 Development
  • Internal ROM expansionHas anybody designed a multiple-ROM interface that plugs into the internal ROM socket instead of plugging onto the edge connector? It would be useful…

    ... fix 'some logic' to the ROM chip or socket, due to ... which holds bankswitching for both ROM and RAM, all logic for reading ... of my ROMs holds an Opus DOS which I am extending ... to my hearts contents now, 8K free!
    roko roko February 2012 Hardware
  • Write to ROM=crash?I've read in quite a few places that writing to the ROM causes a crash but on the assembly listing the comments for poke say: "Happily no check is ma…

    I've read in quite a few places that writing to the ROM causes a crash but on the assembly listing the comments for poke say:
    "Happily no check is made as to whether ROM or RAM is addressed."

    Does this mean that pushing a value when SP
    Unique Unique February 2005 Development
  • Opus Discovery 720K DriveOK, so I bought an Opus Discovery recently. Went through a whole process of fitting a second drive, which I know to be 720K. Eventually got the thin…

    OK, so I bought an Opus Discovery recently.
    Went through ... 1 that came with the Opus to 720K. Lo and behold ... modify it (thanks to the Opus ROM disassembly on WOS) to allow ...
    hldswrth hldswrth November 2006 Hardware
  • Help using M3 ramFrom the Multiface 3 manual. [quote]6.0 The Use of Extra 8K RAM --------------------------- The MULTIFACE's 8K RAM extension can be accessed and us…

    ... of Extra 8K RAM
    ---------------------------

    The MULTIFACE's 8K RAM extension can ... on how to access the RAM extension.[/quote]

    Doesn ... been using the Multiface 128 ram for my own programs, now ...
    FrankT FrankT September 2008 Development
  • Peter Giblin 1984/1985Philip Giblin Early boards on eBay As revealed in the letters pages of YS in 1984, Philip Giblin produced boards for the SOFT-ROM and two of his bo…

    ... produced boards for the SOFT-ROM and two of his boards ... two switches to select whether ROM or RAM is used by PEEK ... version of SOFT-ROM I bought with two big 8K RAM chips instead ...
    Geoff Geoff April 2010 Hardware
  • ZXC3 Rom CartridgeI recently aquired a ZXC3 Cartridge Rom from [URL="http://www.fruitcake.plus.com/"]Paul Farrow[/URL] fully populated with the latest diagnostic softw…

    ... recently aquired a ZXC3 Cartridge Rom from [URL="http://www.fruitcake ... thing and if you have rom capability (Ram turbo, IF2 etc), this ...
    Macc Macc December 2010 Hardware
  • EMUZLOADER errorI've been sent some program files in EMUZLOADER format. One won't load as the unpacking doesn't stop when it reaches the top of the stack at $408F bu…

    ... unpack to the top of RAM downwards to the display file ... copying it to the Multiface 8k RAM might work, but I haven ... going to be addressing the ROM by then.
    Battle Bunny Battle Bunny May 2012 Emulators
  • TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …

    ... TESTROM3 utility as 16kB ROM file + flasher for install ... ZX Spectrum without ROM and RAM - use only divide rom !

    ... br /> If detect bad ram then show small multicolor lines ... menu.

    TEST FAST RAM
    =============
    Test only ...
    velesoft velesoft August 2012 Sinclair Miscellaneous
  • +D/Disciple games archive?Hi all, Having finally got my disciple to work, I'm starting to have a look at hacking multiload games. Is there any archive on the web with games t…

    ... capability. It also had an 8K RAM bank in the 8-16K ... overlayed on top of the ROM. The +D has something similar ... bank in the disk's RAM bank and jump into it ... . The code in the disk RAM bank converted the data block ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Sinclair Miscellaneous
  • MAME on the Spectrum?Yes, I know it's currently AY's job to make ludicrous posts (a position he's filling in very well, until TKRAP returns), but just out of interest, if…

    ... that way, with only 8K ROM and 8K RAM in the original machine. Even ... a problem, with 16K ROM and 16K RAM, not including sprites in ...
    obo obo May 2006 Emulators
  • Currah MicrosourceHi Anyone here got a Currah Microsource ? I have one, its one of the original eval units complete with 'draft' manual. Just interested to see how …

    ... the Currah MicroSource 8K ROM outside of the ROM itself and ... in my Spectaculator emulator RAM. Thanks Woody once again ... copy the MicroSource ROM to RAM and save it ... into an 8K block block of RAM as follows:< ... Loads an 8Kb block into RAM at C000h
    LD ...
    BloodBaz BloodBaz October 2006 Sinclair Miscellaneous
  • Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…

    ... Also 112K (48K RAM plus a 64K ROM cart) is just ... only specifies at least 8K RAM and quite a few ... 2068 can have another 64K RAM in the cartridge slot ... an unlimited amount of RAM added by the edge connector ... owns its own 16K RAM where video information is held ...
    Alcoholics Anonymous Alcoholics Anonymous December 2006 Games
  • Multiface 3 SwitchesHi All I finally got my Multiface 3 today for my +2a. After reading the instructions and lots of odd fiddling with these switches at the top of it i…

    That's definitely modified.
    It'd be interesting to open it up and see what's been changed. Could be that one of the switches gives an option for 16k RAM (rather than the 8k RAM/8k ROM combination that's usual).
    icabod icabod December 2006 Hardware
  • DivIDE and RWAP's DiwIDE*Opps, sorry, wrong forum, this thread must be in hardware topic.* I was planning to get a divide from Rwap, but I'm too afraid of long way the devi…

    ... RAM in current divIDE is not a real bottleneck - the 8k of ROM ... addressing 128k RAM.

    Now for addressing additional ROM. It is ... important for developers that ROM and RAM are paged independently. Since ...
    baze baze January 2007 Development
  • 16k Spectrum.How come emulator's in 16k mode don't provide 32 ram-pack support.

    ... at all (although 32K Ram Pack expansion emulation would be ... memory check in the ROM only starts at 32767 ... would actually address the 16K ram (shadow it) but ... bus to differentate the 16K ROM and RAM (b15 = 0) and ... managed to extract the 8K ROM from my original.
    BloodBaz BloodBaz March 2007 Emulators
  • Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …

    ... . The READPTRs point to successive 8K blocks of memory.

    ROM calls) otherwise Woody's SpecEmu ... at some unintentional place within ROM or RAM.
    BloodBaz BloodBaz March 2007 Emulators
  • VIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…

    ... 8K BASIC ROM
    ; #7E00 - #9DFF 8K KERNAL ROM
    ; #9E00 - #BDFF 8K RAM< ... br /> ; #BE00 - #D2FF 5.25 EXTRA RAM ... FFFF 10K EMULATOR CODE + CHAR ROM

    The ... code could give more free RAM.

    ...
    Dr BEEP Dr BEEP August 2008 Sinclair Miscellaneous
  • What we gotI moved house and I have setup my Spectrum gear, I was looking at all that I have and was thinking what else do others have in there collection? Ok …

    ... 64K ROM + 64K RAM + CF intf
    1 Spectrum 96K ROM + 256K RAM + Opus Discovery ...
    roko roko May 2009 Sinclair Miscellaneous
  • The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …

    ... to the entire cartridge ROM. The Amiga is more ... the fastest way to access RAM/ROM.

    Amstrad ... Q could run as ROM or RAM. I would set Psy ... only has 64K of RAM (named Work RAM), use it carefully ... 4mhz Zilog Z80 with 8K of RAM is available to control ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • Opus Discovery ROMHi Spectrum-friends, it is now a long time since I used a Opus Discovery daily and even when I bought it I had a 720k drive with him. Now a guy want…

    ... need ROM 2.2 for 128 compatibility, and 6116 RAM for using ... specs) is copied from ROM to RAM when that is mounted, and ... . modificated ROM; 2. a prog to make changes in 6116 RAM (after ... which a disk is formatted); 3. an Opus-formatted ...
    roko roko December 2010 Hardware
<1234567…34>

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  • OPUS.ROMI was downloading the new RealSpectrum emulator with low level access to disks like Opus Discovery disks. But now I need the ROM file. Where can I ge…
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  • 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<br /> <br /> I found the following code:<br /> [code]<br /> CHADD equ 23645 ; Location of…

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