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<1234567…34>
  • Copy interface ROM content to RamHi all, I have a very rare logitec centronics and disc interface. To save its ROM content I would like to copy it Ram and store it somewhere. How ca…

    ... interface. To save its ROM content I would like to copy it Ram and ... ? Small MC routine to copy from Ram area to Ram area could be sure ... ). But How to be sure that the Interface ROM is paged in ...
    maskenlos maskenlos July 2008 Hardware
  • 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 …

    ... reached ROM - $3F ?
    JR NZ,L11DC ; Back to RAM- ... JR Z,L11EF ; forward to RAM-DONE if faulty.
    ... Z,L11E2 ; back to RAM-READ if zero flag ... ROM - $3F ?
    JP NZ,L11DA ; Back to RAM- ...
    antoniovillena antoniovillena April 2012 Development
  • Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…

    ... The idea is to rewire these jumps to RAM so that a ... by rewiring RST 0x00 /,
    - ROM extensions,
    - IM1 routines. ... used
    to fill the gaps in ROM /translation: useless ...

    QUESTION: disclaimer ... ROM overwrites address FFFD thus ...what ...
    tstih tstih July 2014 Development
  • 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 …

    ... br />
    ; copy BASIC ROM to RAM

    ld hl,$ ... />
    ; page shadow RAM into ROM area

    ld ...

    ; patch BASIC ROM to prevent overwrites

    ld ... br />
    ; MicroSource ROM patch (copied to $18fe)

    ...
    chev chev March 2007 Emulators
  • converting ZX128 software for SAM COUPESAM COUPE is computer compatible with ZX48 model. Use same ports, same keyboard with compatible membrane, 64kB adress space with possibility connect …

    ... space with possibility connect any ROM from adress 0, compatible ... videoram 0/1
    D4 = rom 128/48
    D5 = ... absent extra bits for rom/vram switching. This is ... 0 original ZX 48 rom to ram memory with write protect< ... 7 is used only as ram
    - in adress ...
    velesoft velesoft April 2010 Games
  • 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 …

    ... Currah MicroSource 8K ROM outside of the ROM itself and ... in my Spectaculator emulator RAM. Thanks Woody once again ... code I used to copy the MicroSource ROM to RAM and save it ... out (to my PC) ... can post the ROM up to WoS.
    BloodBaz BloodBaz October 2006 Sinclair Miscellaneous
  • Changing the colour of the loading 'stripes'I was wondering if it were possible to alter the default colours of the standard ROM loading 'stripes' via BASIC, mabye a POKE command of some descri…

    ... Yep (assuming that copying the ROM version + a few adjustments is ... /> is it possible to copy loading routine from ROM to RAM, then modify it ... , and call it from ram? how ... many changes do we need to make it ...
    Arda Arda November 2007 Sinclair Basic
  • Changing the colour of the loading 'stripes'I was wondering if it were possible to alter the default colours of the standard ROM loading 'stripes' via BASIC, mabye a POKE command of some descri…

    ... is it possible to copy loading routine from ROM to RAM, then modify ... it, and call it from ram? how ... many changes do we need to make ... back, but I seem to have lost all the ... it :( It's best to disassemble it and change ...
    mulder mulder November 2007 Sinclair Basic
  • Changing the colour of the loading 'stripes'I was wondering if it were possible to alter the default colours of the standard ROM loading 'stripes' via BASIC, mabye a POKE command of some descri…

    ... is it possible to copy loading routine from ROM to RAM, then modify ... it, and call it from ram? how ... many changes do we need to make ... BASIC some years ago to do just that. A ... think I ever uploaded it to WOS, but I could ...
    Lee Tonks Lee Tonks December 2007 Sinclair Basic
  • upgrades what you looking for?i start working for upgrades for ZX, but i'm Atari specialist and i don't know exactly what you need for ZX. On the moment i have DIVIDE in stock, an…

    ... you overwrite both rom and ram.. It's not limited to the first ... RAM has to be used to coordinate the transfer of the program from ROM to RAM ... ".
    It seems to me that it ...
    joefish joefish May 2009 Hardware
  • pulling data from a CD-romis this possible. it starts up as a programme, and wont let you print from it. i could do screen grabs but that would take ages.

    ... the data from RAM to ROM, it's copied across to the graphics card ... ram, it's transmitted down ... the air...[/QUOTE]

    Rom to Ram actually.

    You are ...
    beanz beanz October 2009 Chit chat
  • pulling data from a CD-romis this possible. it starts up as a programme, and wont let you print from it. i could do screen grabs but that would take ages.

    [QUOTE=beanz;390852]Rom to Ram actually[/QUOTE]

    is that how they do it in texas? :-P
    mile mile October 2009 Chit chat
  • pulling data from a CD-romis this possible. it starts up as a programme, and wont let you print from it. i could do screen grabs but that would take ages.

    [QUOTE=beanz;390852]Rom to Ram actually.

    You are ... .
    You either want people to access the data, or you ... back in again.

    to get slightly on-topic for ... games. Since you can to a tape to tape it renders it ...
    guesser guesser October 2009 Chit chat
  • 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 ... drive 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 ... ROM version number, PRINT USR 14070 will return '0' if 6116 RAM ...
    roko roko December 2010 Hardware
  • 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 ... drive 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 ... ROM version number, PRINT USR 14070 will return '0' if 6116 RAM ...
    Speccyman Speccyman December 2011 Hardware
  • ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…

    ... compression, and decompress from ROM to RAM, in chunks to make maximum usage of ... 16KB ROM.

    Would you ...
    RMartins RMartins June 2016 Hardware
  • ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…

    ... Kb used and only rest to do enemy's movement and ... ". There is no need to use decompression from ROM to RAM. The game works ... /> When finished I will see to publish it on cartridge, thanks ...
    radastan radastan June 2016 Hardware
  • LenslokDid each individual game have the same Lenslok across all formats? E,g, was the Lenslok that came with Jewels of Darkness / Price of Magik the sa…

    ... but ... that's what the RAM is for :)[/quote]
    ... at the game / rom in question to see exactly what ... it did have in ROM.

    A lazy way would be to ... game code copied from ROM to RAM and have a shorter ...
    spider spider July 2020 Games
  • 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
  • RAM Test ROM?Found a link to this: [url]http://www.retroreview.com/iang/TestSpec4.zip[/url] in another thread, and fired it up in SPIN, but I have no clue how to…

    ... ROM.
    Can someone advise how to use this to determine which physical RAM ... chip needs replacing, and/or point me to ... an alternative ROM to ...
    trellis trellis September 2006 Hardware
  • 48K Issue 3B ROM to EPROM methodsHi folks, While fixing up a completely dead Commodore PET I needed a way of testing the 4116 RAM chips that make up its 32K, some googling found a…

    ... way of testing the 4116 RAM chips that make up its ... EPROM containing the 48K ROM and a diagnostic ROM from Paul Farrow ... , jumper wire from ROM socket pin 28 to pin 1 for Vcc ... diags.

    Sanity check ROM burner (MQP Pinmaster 48) by ...
    witchy witchy December 2015 Hardware
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... that didn't use the ROM, for key input and character ... area (it can be forced to RAM, so setting breakpoints shouldn't ... used/seen so far appear to use the standard RST 10 ... , I suppose I'll have to hack what I want into ...
    glancaster glancaster February 2007 Development
  • 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 ... kind of thing you need to own!! Loads of fun!
    Macc Macc December 2010 Hardware
  • Win2003 tweaking to make better use of lotsa RAM ?I have a server running Win2003. This machine is fitted with 4 GB of RAM, which is far more than strictly required. It only runs a few apps, and is …

    ... fitted with 4 GB of RAM, which is far more than ... " 2 GB of the available RAM without losing any steam.
    to RAM at startup to reduce the load on ...
    Pilsener Pilsener March 2011 Chit chat
  • 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 …

    ... + flasher for install this rom to divide eeprom (or mapram mode ... ZX Spectrum without ROM and RAM - use only divide rom !

    ... byte with page number to each 8 ram pages and verify ... reset = jump to main menu.

    TEST FAST RAM
    ...
    velesoft velesoft August 2012 Sinclair Miscellaneous
  • quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…

    ... call, due to the STR$ bug in the ROM, as shown ... br /> 41 REM TO COPY string to RAM or RAM to string or RAM to RAM
    GO ... or destin location if in RAM;
    b$=source string ... source location if in RAM;
    l =length to copy
    ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • 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…

    ... to build a small MCode-program which writes the TR-DOS-ROM ... v4 / v5 to RAM adress 40000 an ... = 15366 dez = DOS / ROM ON
    ;TR-DOS v4 ... the standard Spectrum 48k ROM to adress 40000
    ... and NOT the Betadisk v5 ROM (because it´s not ...
    Luzie Luzie December 2015 Hardware
  • zx spectrum display corruption .. with lower ram module installed[img]https://photos.app.goo.gl/Gu6rjC5v21sZxwTX9[/img] [img]https://photos.app.goo.gl/FznVw8SkbbhWn5mh7[/img] another specie question : i have …

    ... has lower ram module fitted.. can get it to scan with ... shows lower ram as good and upper ram not detected ... start digging at the upper ram, or the 4 logic ... chips that drive the upper ram.. i am presuming that ... its way to the rom.(but was ok from the rom to the ...
    mark8bit mark8bit January 2021 Hardware
  • Ported whole casettes of backuped utiltilitiesHi! A friend of mine gave me a few casettes he found in the attic - he used these to backup ORIGINAL casettes he had back in the spectrum games. The…

    ... ZXTape Utilities - Play TZX , TZX to VOC Converter and TZX Info ... ZXTape Utilities - Play TZX , TZX to VOC Converter and TZX Info ... /> 13- 88D7: Program : ROM I RAM Length: 19 Normal Speed ,Pause ... Utilities - Play TZX , TZX to VOC Converter and TZX Info ...
    Tom-Cat Tom-Cat August 2003 MIA/STP/SDP
  • TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…

    Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM?



    [ This Message was edited by: klingler on 2004-07-08 15:19 ]
    klingler klingler July 2004 Sinclair Miscellaneous
<1234567…34>

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Related Threads

  • Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code:<br /> <br /> [CODE]<br /> ;; ram-check<br /> L11DA: LD H,D ; Transfer the top value to the HL registe…
  • Copy interface ROM content to RamHi all,<br /> <br /> I have a very rare logitec centronics and disc interface. To save its ROM content I would like to copy it Ram and store it somew…
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  • Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…
  • Searching for correct Betadisk 48k TR-DOS v4.12 ROM (Save ROM via TRDOS-Prompt to Disk)Hi,<br /> <br /> I have two ROM-Files which should be read out from an original Betadisk 48 Interface TRDOS v4.12 (ROM-Size 8k).<br /> But when I …
  • Alternative to Poke 23659,0 to prevent a 'break in' to a Basic Program.Good morning everyone,<br /> <br /> My memory fails me these days but in the early days of programming I used to use Poke 23659,0 as a crude way of…
  • How to download games to micro sd card to play on Sinclair zx spectrum vegaHello<br /> Could anyone tell me how to download games from a website to a micro sd card to play on a Sinclair zx spectrum vega , I mean do I use a …
  • 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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