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  • ANN: ResiDOS v2.25 and +3e ROMS v1.38 releasedA major new release of ResiDOS, v2.25, is now available! The most important new features are commands and functions allowing new extended streams an…

    ... paging often ? Is possible write RESIDOS version for original DivIDE (32kB ram ... true allram mode with 16kB paging in rom area (similar as ...
    velesoft velesoft July 2009 Hardware
  • ANN: ResiDOS v2.25 and +3e ROMS v1.38 releasedA major new release of ResiDOS, v2.25, is now available! The most important new features are commands and functions allowing new extended streams an…

    ... paging often ? Is possible write RESIDOS version for original DivIDE (32kB ram ... each file call, the following paging operations occur:
    [ ... each BASIC call, the following paging operations occur:
    [ ... 's quite a few paging operations! Also, some banks ...
    glancaster glancaster July 2009 Hardware
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    ... memory scheme - the only memory paging mechanism in a standard rubber ... to bring their own memory paging logic. The main ROM can ... space in the Spectrum's RAM with MAKE_ROOM and plops its ... be using a lot of RAM), but it could be done ...
    Winston Winston July 2009 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... in the manual that some RAM is used for the stack ... RAM (i'm not talking about the top-5k COPY corruption bug ...
    glancaster glancaster July 2009 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... , as if DOS is active, RAM Page 7 is here instead ... will switch in the correct RAM bank to the top 16K ... just need to specify the RAM bank (0-7) you want ... from the upper bank (as ram page 7 is active then ... to set up all the paging and call the +3DOS routine ...
    glancaster glancaster August 2009 Development
  • MGT image format and file systemHello, I'm working now on the M.G.T. file support for my ZX-Modules applications. I've collected some data sheets and most of them describe the inte…

    ... . Now there exists a known bug in MGT: certain errors do ... copy of the bitmap in RAM as invalid. So during the ...
    roko roko August 2009 Development
  • 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…

    ... DivIDE,DivIDE+,BETADISC,D40,D80,RAM TURBO, INTERFACE 2, etc....
    paging port 23(#17). I never ...
    velesoft velesoft August 2009 Hardware
  • Symbos-z80 on a speccy?[url]http://www.uelectronics.info/symbos-z80[/url] If it works with the CPC and MSX, surely the Speccy qualifies too?

    ... to machines with specific memory paging. The only possible machine (again ... . Maybe, due to the all ram mode. Graphic mode is not ... are disk interfaces with additional ram and paging modes (MB02, Divide+) that ...
    omega omega August 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…

    ... still access the other 3 RAM banks (RAMa0, RAMa1 and RAMa2 ... enable writing to all four ram pages (also to page RAMa3 ... 1 always enable writing to ram pages. After set D7=0 ... PLUS use MB02 compatible memory paging - will possible use this utility ...
    velesoft velesoft August 2009 Hardware
  • Arcade Game Designer 2.0 releasedI know dozens of you downloaded the previous version of AGD. Well, you can put it away now because I've made some major improvements to that version…

    ... />
    - Fixed FALL bug
    - Fixed resize window bug which removed sprite ... longer crashes
    - Fixed compiler bug whereby nested IFs or IF ... reduces the amount of available RAM for your game, and this ...
    jonathan jonathan September 2009 Development
  • Newbie: DivIDE or DivIDE+??Hi Everybody, I'm a total newbie from the US about to enter the world of Spectrum. Reading Retro Gamer for the past couple of years has made me want…

    ... but has access to 128k paging and AY38910 for 128k sound ... flexibility, and 512k RAM, and battery backed RAM for running Garry Lancaster ...
    Hercules Hercules September 2009 Hardware
  • Newbie: DivIDE or DivIDE+??Hi Everybody, I'm a total newbie from the US about to enter the world of Spectrum. Reading Retro Gamer for the past couple of years has made me want…

    ... but has access to 128k paging and AY38910 for 128k sound ... flexibility, and 512k RAM, and battery backed RAM for running Garry Lancaster ...
    98PaceCar 98PaceCar September 2009 Hardware
  • 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…

    ... not valid to perform 128K paging within a few thousand t ...
    OUT (#E3) ;set divide ram 0 + reset low/high (*)
    velesoft velesoft September 2009 Development
  • 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…

    ... not valid to perform 128K paging within a few thousand t ... (in the case of the paging register for the Spectranet, I ... reset on the CPLD's paging registers is still valid (the ... , 0x3000 ; Clear down the fixed RAM page.
    ld de, 0x3001 ...
    Winston Winston September 2009 Development
  • Arcade Game Designer 2.0 releasedI know dozens of you downloaded the previous version of AGD. Well, you can put it away now because I've made some major improvements to that version…

    ... of it. Is that a bug instead? :D[/QUOTE]

    RAM to store the block properties ...
    jonathan jonathan October 2009 Development
  • 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…

    ... software that runs in main RAM. It's not a general ... ]
    My thoughts on 128K paging are to use the method ... over the other pages, without paging them in to check (at ... of finding out which video ram is in use: show the ...
    gasman gasman October 2009 Development
  • detecting 128 mode ?quick question really, someone who programs would know I guess. am I right in thinking some things detect 128 program and adjust accordingly , say i…

    If paging registers are not locked, ... 0, copy some bytes to RAM, and page in ROM 1 ... in RAM are all the same as the ROM, the paging has ... results.

    If the paging registers are locked, you still ... handler, to deal off with paging. In a +3 the differences ...
    mcleod_ideafix mcleod_ideafix October 2009 Hardware
  • detecting 128 mode ?quick question really, someone who programs would know I guess. am I right in thinking some things detect 128 program and adjust accordingly , say i…

    ... value 128, then page in ram bank 1 and write 48k ... same location, switch back to ram 0 and read back.... if ... a 48k machine then the paging will not have happened so ... have the value 128 (because paging occurred and the 48 was ...
    nuggetreggae nuggetreggae October 2009 Hardware
  • Duo Or Quad Core? That Is The Question?I posted this thread a while back - [url]http://www.worldofspectrum.org/forums/showthread.php?t=26951[/url] Well, I decided to scrap it!! My mrs sa…

    ... the hard drive would be paging, thrashing and their would be ... due to the 4GB of ram (or what ever the limits ...
    Scottie_uk Scottie_uk November 2009 Chit chat
  • RAM PagingCan anyone shed some light as to how RAM paging actually works, at a hardware level (so not POKE xxxxx stuff). I know about CE and OE lines on DRAMs …

    ... inpath ram and roms but clearly I need to know the paging ... io addressing to page in other blocks of ram, back ...
    Womble Womble December 2009 Hardware
  • Converting games from tap to dskHi to all from Greece, Being an old Speccy user and now owner of most models of Spectrum (48k , 48k+ , 128K, +2 grey and +3) , I desided to salvage m…

    ... then copied to the sideways RAM with a short machine-code ... A,(5B5Ch) ; restore the memory paging that BASIC expects
    LD ... have to use the video RAM as an intermediate buffer.
    John Elliott John Elliott January 2010 Emulators
  • Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …

    ... screens (we'll use screen paging)

    - about 10 kB ... you to 32K of usable RAM during the game itself (use ...
    bobs bobs January 2010 Development
  • more memoryi dunno if this has been mentioned, apologies if it has (i cant be arsed to search :P) Ive just been reading about the zx81 and it popped into my he…

    ... , 64K of RAM would require some kind of memory paging (such as ... had) as 16K ROM + 48K RAM used up the entire 64K ... IO address to put your paging function on and unless software ...
    BloodBaz BloodBaz January 2010 Hardware
  • more memoryi dunno if this has been mentioned, apologies if it has (i cant be arsed to search :P) Ive just been reading about the zx81 and it popped into my he…

    ... (or ZX48kB with removed 8 ram chips):
    [url]http://velesoft ... memory upgrades, but with memory paging in low 16kB as rom ... this my upgrade (only 1MB ram memory):
    [url]http://velesoft ...
    velesoft velesoft January 2010 Hardware
  • SkoolKit 1.0A new release of the Skool Disassemblies is available. This time, besides the traditional [url="http://pyskool.ca/disassemblies/"]online version[/ur…

    ... that state which bits of RAM in a snapshot are code ... to each other (instead of paging up and down in a ...
    SkoolKid SkoolKid February 2010 Development
  • Platform Game Designer 2Right, with Telly Heroes out of the way, I've decided to have a second attempt at this. I've ditched the old PGD2 source, and started again with the…

    ... and I've found another bug when flipping screens which could ... and freeing up as much ram as possible. Or it became ...
    BiNMaN BiNMaN February 2010 Development
  • Problem with Spin 0.7s +3 file I/OI'm currently trying the +3 disk functions in z88dk. I've based my work upon the simple snippet Winston posted a while ago, but doing the contrary. H…

    ... stack to be in contended ram so a better location might ... if you do any memory paging on the +3 you will ... up to date with current paging info in order for +3 ...
    Alcoholics Anonymous Alcoholics Anonymous March 2010 Emulators
  • Problem with Spin 0.7s +3 file I/OI'm currently trying the +3 disk functions in z88dk. I've based my work upon the simple snippet Winston posted a while ago, but doing the contrary. H…

    ... 'm taking notes about the paging. Currently we do this, ... 128kreference.htm[/url] . The +3 paging is the same as the ... normal mode. If you want RAM in the bottom 16k you ... The FAQ also mentions this "RAM banks 1,3,4 and ... require a whole lot of RAM but I'm sure ...
    Alcoholics Anonymous Alcoholics Anonymous March 2010 Emulators
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
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    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
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    mel the bell on April 20

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ram 12.6K 21.4K
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  • RAM PagingCan anyone shed some light as to how RAM paging actually works, at a hardware level (so not POKE xxxxx stuff). I know about CE and OE lines on DRAMs …
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