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<1…15161718192021…34>
  • Announce: BASin r14b availableHere's the fix mentioned earlier for those of you that either are too lazy to update your OS (XP SP2 has been out aaaaages, Arjun!) or even junk that…

    ... code doesn't use the ROM at all. Once it's ... [I]write[/I] to the ROM though - I use it as ... debugger)

    Is the ROM call the reason for the ... or is it just a paging issue?
    Jimmy Jimmy June 2008 Emulators
  • Announce: BASin r14b availableHere's the fix mentioned earlier for those of you that either are too lazy to update your OS (XP SP2 has been out aaaaages, Arjun!) or even junk that…

    ... =Jimmy;276954]
    Is the ROM call the reason for the ... or is it just a paging issue?[/QUOTE]

    Dunny ... does some sort of dodgy paging operation, and inside the IM2 ...
    Digital Prawn Digital Prawn June 2008 Emulators
  • Announce: BASin r14b availableHere's the fix mentioned earlier for those of you that either are too lazy to update your OS (XP SP2 has been out aaaaages, Arjun!) or even junk that…

    ... thought, but when you say "paging", you don't mean 128k ... paging? If you are, then it' ... />
    Yes, it uses 128K paging. It's a 128K app ... routine also jumps into the ROM interrupt service routine to allow ...
    Digital Prawn Digital Prawn June 2008 Emulators
  • Faulty M1 pin on a Z80 made from SGS?It's the second time I have come across this: a Spectrum that seems to work ok, but if I attach an Interface 1 or a DivIDE to it, it behaves as is no…

    ... software paging throughout. When running, the original Spectrum's BASIC ROM is ... of the RST8 routine before paging back to the BASIC copy ...
    glancaster glancaster June 2008 Hardware
  • 48K games that don't work on a +2Not sure if there is already a thread about this but recently I've noticed some old 48K games will not run on my +2 - even in 48K mode. Examples are…

    ... system variables. Changing the paging routines will lead to a ... as that's used for ROM/RAM paging on the 128 models ... $7FFD which disables any further paging requests.

    9) ... port $1FFD which provides extra paging possibilities. In particular it allows ...
    Jimmy Jimmy June 2008 Games
  • RAM paging and port usageDear users and developers, I'm just trying to find some detail information about RAM paging on the Spectrum 128 and later models, especially those a…

    ... and 15 reset will cause paging.

    [QUOTE] ... TS2068
    No RAM paging, but always fixed 48k RAM ... really. There's another ROM selected via bit 1 of ... again), the TR-DOS ROM somewhere and bit 0 ... ]

    TR-DOS ROM.

    [QUOTE]Pentagon ...
    Philip Kendall Philip Kendall June 2008 Hardware
  • RAM paging and port usageDear users and developers, I'm just trying to find some detail information about RAM paging on the Spectrum 128 and later models, especially those a…

    ... and 15 reset will cause paging[/QUOTE]
    Interesting. That means ... XX0X have the same RAM paging functions as 0111 1111 1111 ... that I had excluded the ROM switching completely as I was ...
    clausjahn clausjahn June 2008 Hardware
  • 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…

    ... ) identify the magic "paging address" that triggers the rom to page in ... and (b) a program to extract the ROM ... via the paging function; of a little ... [/thread] Thread about exctracting the ROM from an interface similar to ...
    BloodBaz BloodBaz July 2008 Hardware
  • Official release of new K-MOUSE 2008 interface[url]http://velesoft.speccy.cz/kmturbo2008-cz.htm[/url] This is official release of new K-MOUSE 2008 interface. New layout, design, new schematic. …

    ... to 512kB sram and 128kB rom. And exist version of RESIDOS ... />
    New upgade support memory paging full 512kB (used all bits ... on Divide paging port)
    Allram mode 16kB ... paging (full 512kB)
    Allram mode ...
    velesoft velesoft August 2008 Hardware
  • 'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…

    ... , without examining the 128K BASIC ROM, or at least a thorough ... ) Most other things (including the paging operations and active screen selection ...
    Digital Prawn Digital Prawn August 2008 Sinclair Miscellaneous
  • 'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…

    Thanks for the ROM link, aowen.

    There is a lot of paging activity in there, a lot more than I though in fact.
    Digital Prawn Digital Prawn August 2008 Sinclair Miscellaneous
  • A 64K Spectrum?? Is this real?I have seen avertised on Ebay today two boxed ZX Spetrum Rubber Keys. One 16K and the other a 64K upgraded model?? Is this for real??? [url]http://…

    ... first 16k as the fixed ROM of course.)[/quote]
    Correct ... can only access 64k (without paging) then 64k is the maximum ... contain 48k RAM and 16k ROM.
    rich_chandler rich_chandler November 2008 Sinclair Miscellaneous
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    Ah, in which case, use the Sea Change ROM, and use a short routine in RAM to handle paging :-)
    Winston Winston November 2008 Hardware
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    The other IF1 hard paging entry address at 5896 (#1706) must be avoided.
    And the (5 or 6) JPs in IF1 ROM to hard paging exit at 1792 (#700) must be
    diverted to a pagehandler.
    roko roko November 2008 Hardware
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    WOS also has The Complete Shadow ROM Disassembly, which is an interesting thing to read. It also explains the paging mechanism for the IF1 ROM, and why the traps are at the addresses that they are at.
    Winston Winston November 2008 Hardware
  • 16K Rom with RS232 supportHi all, I am looking for a 16K Rom-code (to fit into the speccy) which supports RS232 and Network of IF1. Background: I am using 48K Issue 3 with W…

    ... learned a lot about paging in ROM and trap handling.< ... a problem of paging in the ROM, its simply an ... connector) everything works perfect! Rom can paged in and ... mange to change Peras ROM code. Also I think ... have read your diag board rom source code?

    maskenlos maskenlos November 2008 Hardware
  • Multiface3 and Divide combinationI recently bought a Multiface3 from ebay, I haven't got it yet but I was wondering... since the MF3 has a through port (the one i got), will it be co…

    ... 0x0066 executes (and both are paging in at the same time ... standard DivIDE as a Spectranet ROM module. The Spectranet, having 128K ...
    Winston Winston November 2008 Hardware
  • New BASin features - what do you want?Ok, this poll is just a quick method of gaining the measure of what you lot expect from BASin. Go vote! Which ever gets the most votes at the end of…

    ... library in a custom ROM or use memory paging to get around ...
    Matt_B Matt_B December 2008 Sinclair Basic
  • New BASin features - what do you want?Ok, this poll is just a quick method of gaining the measure of what you lot expect from BASin. Go vote! Which ever gets the most votes at the end of…

    ... bigger programs by using memory paging or multiple passes from tape ... commands, making calls to the ROM routines for the remainder. However ... some that replace particularly slow ROM routines with their own code ...
    Matt_B Matt_B December 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…

    ... ) and set 48 rom with enable 128kB memory paging. For switch from ... 48kB memory without paging.

    This is modified rom file for ... .speccy.cz/other/zx128rom-enable-paging-in-48-basic.zip[/url ...
    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…

    in 128K mode the Spectrum uses some more bytes in Bank 7 afaik, for the RAMDisc feature and other 128K stuff. In USR 0 mode you use 48K ROM with memory paging enabled, so no memory is lost and you can use the complete memory in all banks.
    LCD LCD 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…

    ... mode you use 48K ROM with memory paging enabled, so no memory ...
    Mister Beep Mister Beep 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…

    ... ) and set 48 rom with enable 128kB memory paging. For switch from ... 48kB memory without paging.

    This is modified rom file for ... speccy.cz/other/zx128rom-enable-paging-in-48-basic.zip[/URL ... mode you use 48K ROM with memory paging enabled, so no memory ...
    ewgf ewgf 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…

    ... 0x0000. Since the 48 BASIC ROM is paged in, this is ... disabling any of the 128 paging (which is what happens if ... the desired values and paging in the 48 ROM, however, using USR ...
    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…

    ... screen backup time (divide memory paging)
    - is impossible use ... (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
  • 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…

    ... /> - Dip switch for selecting four ROM banks
    - Kempston interface
    paging to MB02+ compatible. MB02+ is ... interface with 512kB sram + 512kB rom(or ram+battery) + DIVIDE ports ...
    velesoft velesoft January 2009 Hardware
  • 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…

    ... without problems with any select rom page (48basic,128editor,syntax(+ ... code (autodetection of ZX rom type). I have complette ... allram mode with 16kB memory paging with selectable write protect !!! ... to computer with absolutly different rom, after reset/power on ...
    velesoft velesoft January 2009 Hardware
  • 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…

    ... modified if you need use rom with different routines (modify ... without requiring the 128 editor ROM.[/QUOTE]

    Divide ... compatibility with 128 rom is good for correct work ... DIVIDE ide ports + MB02 memory paging(or any other with RESIDOS ...
    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 …

    ... /> GAL20V8(adress decoder)
    74LS273(paging port 23)
    SRAM 512kB ... detect if CPU access to rom area). System on DIVIDE can ... new 1MB sram with 16kB paging and selectable write protect. After ...
    velesoft velesoft January 2009 Hardware
  • 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…

    ... (same ide ports) + modify memory paging to MB02+ compatible. MB02+ is ... interface with 512kB sram + 512kB rom(or ram+battery) + DIVIDE ports ...
    zboskovi zboskovi January 2009 Hardware
<1…15161718192021…34>

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HitBox

Word Docs Hits
rom 15.6K 29.7K
paging 1.7K 2.4K

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