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<1…17181920212223…34>
  • DIVIDE versus ZX128 ROMDivide interface use hardware mapping of extra memory on this fixed points in 48rom: #0000 - power-on/reset/rst0/software restart #0008 - syntax erro…

    ... true allram mode with 16kB ram blocks paging instead ZX rom, but ... all this ram is used for Divide ...
    velesoft velesoft March 2013 Development
  • The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…

    ... pause computer (active /WAIT) - static ram chips not need refresh :-)[/QUOTE ... any time ( = bit D3 from paging port 7FFD connect with ula ...
    velesoft velesoft March 2013 Hardware
  • Rocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…

    ... accessed, so the 6264 RAM's chip selected line ... whilst the FloppyOne's RAM is being accessed, presumably ... of the contents of the RAM of other peripherals.
    RAM from 0x3000?0x3fff, but ... 't fully understand the paging logic, and am not ...
    zub zub March 2013 Hardware
  • Rocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…

    ... whilst the FloppyOne's RAM is being accessed, presumably ... the contents of the RAM of other peripherals.[/ ... /CS1 of the 6264 RAM would be low for ... RAM/MMIO is paged out.

    It certainly seems that paging ... DOS' ROM and paging of the RAM/MMIO are linked ...
    zub zub March 2013 Hardware
  • Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…

    ... rom, could the 128k models paging still be enabled along with ... />
    Yes, quite right. Paging of higher RAM will work.

    Dan Antohi Dan Antohi March 2013 Hardware
  • Multiface 3 programming guide anywhere?I'm interested in the tantalising little bit of text at the bottom of my Multiface 3 manual (under the "Using 8K RAM" section): "Please send a SAE…

    ... addresses of things in the RAM are:
    [code]
    2006 ... off, bit 3 set if paging unlocked, bit 4 is 48k ...
    John Elliott John Elliott April 2013 Hardware
  • Multiface 3 programming guide anywhere?I'm interested in the tantalising little bit of text at the bottom of my Multiface 3 manual (under the "Using 8K RAM" section): "Please send a SAE…

    ... on", probably regardless of the paging status, but I'm guessing ... addresses of things in the RAM are:
    [/QUOTE]
    ... top-end of the 8K RAM (machine state) and most ... which bits of the RAM I could safely use ... +3DOS in the 8K RAM which has been modified to ...
    u6c87 u6c87 April 2013 Hardware
  • Spec +3e CF Card interface working Great but a different problem popped upHey, just wanted to say thanks to everyone that helped me get my Spectrum +3e and CF card working. I've been playing on it all last night and this a…

    ... a complete filing system in RAM as a resident driver but ... and RAM on an external interface which provides all the paging and ... have some of your precious RAM consumed by a filesystem workspace ...
    guesser guesser May 2013 Hardware
  • Spec +3e CF Card interface working Great but a different problem popped upHey, just wanted to say thanks to everyone that helped me get my Spectrum +3e and CF card working. I've been playing on it all last night and this a…

    ... a complete filing system in RAM as a resident driver but ... and RAM on an external interface which provides all the paging and ... have some of your precious RAM consumed by a filesystem workspace ...
    thomas3120 thomas3120 May 2013 Hardware
  • Poke on +2 greyhi, should i poke 65535,0 or 65536,0 in the first case i get OK 0 but in the second one i get "B interger out of range,0:1" i am trying to load z…

    ... for Zynaps address the top RAM byte, so I can't ... mode but with the 128k paging and sound still enabled.
    Battle Bunny Battle Bunny May 2013 Hardware
  • DIVMMC, a new compact interface for ZX SpectrumAfter a long gestation period and a short period of testing, Mario Prato, member of the Italian [URL="http://apuliaretrocomputing.wordpress.com/"]Apu…

    ... interface, but PCB contain big ram 128kB (with possibility place ... old DIVIDE use small memory ram 32kB and new versions ... use compatible memory paging as original divide + contain next ram pages for ... system. ESXDOS use new extra ram for fast screen backup ( ...
    velesoft velesoft May 2013 Hardware
  • DIVMMC, a new compact interface for ZX SpectrumAfter a long gestation period and a short period of testing, Mario Prato, member of the Italian [URL="http://apuliaretrocomputing.wordpress.com/"]Apu…

    ... ):
    - memory paging compatible with DIVIDE interface (+ next extra ram pages)
    paging, SD ports #E7 (write only ...
    velesoft velesoft June 2013 Hardware
  • Enable 128kB paging in emulatorFrom Zx Spectrum documentation ([url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url]) [CODE][SIZE="1"]When memory is being pag…

    ... have a .z80 snapshot where paging was disabled before saving and ... unlock 128kB memory or change ram page, videoram, rom.... See command ... /> 0-7=start snap with ram page 0-7
    R ... color lines:
    -line 1 = ram 0-7 as color 0 ...
    velesoft velesoft June 2013 Emulators
  • esxDOS v0.8.5 released (with TR-DOS emulator)Yup, you read right! Now with TR-DOS emulation! More info and download here: [url]http://www.esxdos.org/[/url] Enjoy :)

    ... DIVMMC interface. Use same memory paging as original DIVIDE, but contain ... DIVIDE (supposedly) and contain more ram pages (128kB or 512kB).
    velesoft velesoft June 2013 Announcements
  • Flashing the DivIDE plusToday I've tried to flash my good old DivIDE plus with esxDOS 85 (it already have esxDSO 80 on it). When I start the tap file it asks me to do someth…

    ... different paging ports. Port #E3(227) select 4 different ram ... blocks. If anyone rewrite paging port #E3 in any ... can easy access to 128kB ram (16x 8kB divide page ... DIVIDE system using 128kB ram and system are not ... system. For enable 128kB ram in sytem must be ...
    velesoft velesoft June 2013 Hardware
  • DIVIDE PLUS - new memory mode DIVIDE128Divide PLUS contain 512kB sram + 512kB flash eprom. Memory paging in this device is enable on two different ports : 1) port #E3 is compatible with o…

    ... ESXDOS) rewrite ESXDOS for this paging mode 128kB then extra memory ... or V6Z80P and next free ram pages will reserved for expansions ...
    velesoft velesoft June 2013 Hardware
  • DIVIDE PLUS - new memory mode DIVIDE128Divide PLUS contain 512kB sram + 512kB flash eprom. Memory paging in this device is enable on two different ports : 1) port #E3 is compatible with o…

    ... OUT (227),A ;connect divide ram page 3(memory ROW3) with ... ;rom image position in ZX ram
    LD DE,8192 ... 24576, length 8kB to divide ram
    DEC A
    ... modified systems with support DIVIDE128 paging mode. This routine can be ...
    velesoft velesoft June 2013 Hardware
  • Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…

    ... something else to do besides paging rom2, ram7 and put the ...
    BCH BCH July 2013 Games
  • Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…

    ... something else to do besides paging rom2, ram7 and put the ... stack on the lower ram?[/QUOTE]

    Look at ...
    Battle Bunny Battle Bunny July 2013 Games
  • DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]

    ... /> Well, and how to manage paging ROM/RAM ?
    Black_Cat Black_Cat August 2013 Hardware
  • DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]

    ... ]Well, and how to manage paging ROM/RAM ?[/QUOTE]

    ... Memory paging port is compatible with ... is paging port #E3 of DIVMMC:
    D0-D5 = 8kB ram ... />
    Functionality of memory paging, layout and mapping is (supposedly ...
    velesoft velesoft August 2013 Hardware
  • DivIDE black editions availableI have about 6 more DivIDE black editions ready, and will finish more this week. [B]DivIDE 57c BLACK edition including ESXDOS 0.8.5 and 1GB CF card[…

    ... rom + 8kB ram = very similar as DIVIDE)
    - memory paging (I need ...
    velesoft velesoft August 2013 Sales
  • Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …

    ... 1 - memory paging[/B]

    Only 16kB rom/ram pages is ... supported.

    [U]Paging port #17 ... reset(hardware reset) and set paging port to value (BIN 10000000 ... /> Examples of MB-02+ memory paging:
    - OUT 23,BIN 01000011 ...
    velesoft velesoft August 2013 Hardware
  • Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…

    I think that the paging of the ROM and the ... MC-routine must run in RAM. The paging circumstances (an address in ...
    roko roko August 2013 Hardware
  • Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…

    ... ;719627]I think that the paging of the ROM and the ... MC-routine must run in RAM. The paging circumstances (an address in ... content of ROM to upper RAM and then "emulate" NMI jump ...
    Shaos Shaos August 2013 Hardware
  • Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…

    ... 007 interface takes control by paging out the BASIC ROM (by ... program in RAM, one which disables maskable interrupts, the paging of the ... ROM SAVE routines to high RAM, then patch them so that ...
    1024MAK 1024MAK August 2013 Hardware
  • Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…

    ... memory bank 7 to the RAM disk, which 48 BASIC can ... the whole of RAM available to ROM 1 without paging, so that ...
    Alessandro Grussu Alessandro Grussu September 2013 Games
  • 128 BASIC-compatible way of loading BASIC as code?On a 48K Speccy (or from 48 BASIC or USR 0 mode on a 128K machine), one can do a silly trick like this: [code];; load a 4000 byte BASIC program ld i…

    Dunno if it would work, BUT- save all the system variables except the first 256 bytes that is the original printer buffer area. On the +3 (so I assume the 128 too), that space is used for paging the RAM, so yeah. Speccy 128 would act up a little.
    DEATH DEATH September 2013 Development
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