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  • Renegade (the hit squad)Hi fellow spectrum peeps,nice to meet you all!,and what a great site you have here!. I have been given a spectrum +2 which didn't load tapes,until i…

    ... BASIC, maintaining any program in RAM. There is no switch back ... +3 BASIC. Note that ROM/RAM switching is not disabled when ... menu). "[/i]

    So paging is definitely not disabled by ...
    gasman gasman June 2011 Games
  • Question about DivIDEHi guys, Tell me this... (please) DivIDE features an "auto-mapping feature transparently maps shadow ROM at important entry points". Depending on …

    ... external 8kB write protected ram+next 8kB ram)
    2) true ... mode is used on different paging port (MB02+ compatible) and ... CPU can access to 512kB ram + 512kB rom.

    ...
    velesoft velesoft June 2011 Hardware
  • Which BASIC commands/functions affect FRAMES?Hi Folks, Does someone have a definitive list of BASIC commands/functions that affect the FRAMES counter? The list I have so far: BEEP CAT (thanks…

    ... the place when they're paging RAM in & out.
    Battle Bunny Battle Bunny June 2011 Sinclair Basic
  • Rom Cartridge - How does it work?So I've got me an IF2 and it has this ROM cartridge slot. How does it work? I read Paul Farrows site but one question remains unanswered. If I have o…

    ... , so it cannot replace lower RAM, only lower ROM.
    Question ... happen if you replace lower RAM (screen) with ROM?[/QUOTE]
    paging state is and it can ... because the SCLD owns that RAM (it controls the address and ...
    Alcoholics Anonymous Alcoholics Anonymous June 2011 Hardware
  • Rom Cartridge - How does it work?So I've got me an IF2 and it has this ROM cartridge slot. How does it work? I read Paul Farrows site but one question remains unanswered. If I have o…

    ... DRAM no matter what the paging state is and it can ... because the SCLD owns that RAM (it controls the address and ... bus that overrides the screen ram, The ULA will still keep ...
    spodula spodula June 2011 Hardware
  • 128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…

    ... writing 0xff, thus paging in page ROM 1 and RAM 7, setting ... the shadow screen and then locking the paging ...
    Philip Kendall Philip Kendall July 2011 Hardware
  • ZX80 Games on your +2A/+3Hi all. Was just having a talk on irc about Paul Farrow's ZX80 games and his emulator for 128k Spectrums and IF2 and since I remembered I got them r…

    ... 8kB ram3 + writeable 8kB ram 0-3). High 8kB of ... 16kB ram pages with selectable writeprotect. Similar as MB02+ memory paging.
    ram for next expansions (fat browser ... FATWARE can work on 16kB ram (next ram use fatware only for ...
    velesoft velesoft July 2011 Games
  • Rom ReplacementQuick and easy question... Is it possible to replace the +2 rom with one from a later model (+2A, B, +3)?

    ... with +2A/+3 (missing vertical paging: 64Kb RAM mode)
    2) It ...
    LCD LCD July 2011 Hardware
  • Emulation of ZX Spectrum 128+2 (grey)Please read this thread: [url]http://www.worldofspectrum.org/forums/showthread.php?t=35523[/url] result: exist 3 (or more) versions of grey ZX Spect…

    ... grey +2 models write to paging port always #FF value. And ... models write to paging port value 255 (set ram 7,videoram 2 ... , 48rom, disable 128kB paging).

    paging port videodata).

    Last ...
    velesoft velesoft August 2011 Emulators
  • IDE Hard Drive on your Spectrum!Hello there my fellow WoS'ers Today, I am going to share with you something that has truly captivated me over the last couple of months, some of you…

    ... words:

    [I]spectranet paging model[/I]

    If ... that cloned the spectranet's paging logic etc but fitted internally ... loading etc), implement nmi rom paging etc etc are all written ... you have a spectranet type ram/rom paging system there's no ...
    guesser guesser August 2011 Development
  • Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …

    ... thinking about a possibility of paging blocks of memory to and ... dividing usable 32KB of Speccys RAM (why do they call it ... this file to/from ZX ram. Actually is used this features ... is possible use same memory paging on ZX 48kB models as ...
    velesoft velesoft October 2011 Development
  • Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …

    ... , Speccy has kilobytes of usable RAM starting right after attributes. But ... . The operating system will divide RAM to 1024 blocks. Lets say ... Spectrums definitely not 32 KB RAM, I mean it!) to ... there will be some overlapping. Paging can solve this.

    tstih tstih October 2011 Development
  • Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …

    ... technically speaking it is RAM and I know how ... move the address of video ram, and yes sometimes it ... is separate RAM and sometimes it is ... part of common RAM being scanned by someting ... a simple technical concept for paging to discuss. And I ...
    tstih tstih October 2011 Development
  • Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …

    ... technically speaking it is RAM and I know how ... move the address of video ram, and yes sometimes it ... is separate RAM and sometimes it is ... part of common RAM being scanned by someting ... a simple technical concept for paging to discuss. And I ...
    Paddy Coleman Paddy Coleman October 2011 Development
  • Is it possible to access the +3 disk drive via m/c in USR0 mode?Is it possible to access the disk drive of the +3 via m/c +3DOS calls when running in USR0 mode? I ask because I'm having an awful lot of trouble ge…

    ... restoration
    ld bc,$7ffd ; paging port
    ld a,($5b5c ... 4
    or 7 ; select ram page 7
    ld ($5b5c ... 4
    and $f8 ; select ram page 0
    ld ($5b5c ...
    cmonkey cmonkey October 2011 Development
  • Classics ported or cloned on good ol' SpeccyHi, Spectrumists! I'm a fan of classic arcade games and I would like to know from you what do you think about ports or clones of such games on the S…

    ... custom rom image to DIVIDE ram:[/QUOTE]
    Unfortunately, there ... Pac-Man ROM also uses RAM locations &4000-5080, ... currently using +3 special paging mode 0/1/2/3 ... back to normal 128K paging mode R/5/2/ ... custom RAM, I'd only need the normal 128K paging setup ...
    obo obo November 2011 Games
  • Classics ported or cloned on good ol' SpeccyHi, Spectrumists! I'm a fan of classic arcade games and I would like to know from you what do you think about ports or clones of such games on the S…

    ... m currently using +3 special paging mode 0/1/2/3 ... with custom RAM, I'd only need the normal 128K paging setup ... pageable 8kB ram pages)
    2) 8kB writeprotect ram + 8kB ram (3x pageable ... 8kB ram) - you can use ...
    velesoft velesoft November 2011 Games
  • Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…

    ... ROM/RAM does Pac-Man run in then? Is the paging required ... access to low addresses of RAM?[/COLOR] Never mind - I've ...
    joefish joefish November 2011 Brand new software
  • Distinguishing between models?I'm running the risk of being pointed to the faq here, so sorry in advance. Something I'm trying out requires that the program can distinguish betwe…

    ... for whether there is a paging variable, or the differences in ... is detected then test if ram page 1 is slow (slow ...
    velesoft velesoft November 2011 Development
  • Gauging interest: ZX EvolutionHi everyone. First of all I would like to introduce myself, since this is my first post. My name is Conrad, I'm from Vancouver, BC, Canada, and I hav…

    ... probably has the same memory paging limits that a ZX has ... interested just in the extra RAM so I can make bigger ...
    na_th_an na_th_an November 2011 Announcements
  • Divide plusJust ordered one. Wonder if memory intensive games designed for russian clones can be run on 128 speccys taking advantage of the extra chips present?

    ... memory layout. DivIDE+ pages its RAM in place of ROM only ... 32768+ can be used for paging more memory.
    LCD LCD November 2011 Hardware
  • Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…

    ... just run from within its RAM to stop it triggering.
    RAM paged at &4000 for ... add-on hardware that supports paging RAM over the first 24-32K ...
    obo obo November 2011 Brand new software
  • 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 …

    ... yet good :)

    Memory paging port #7FFD is rewrited to ... #7F81 (#xx81 = external memory paging). This new port adress work ... on SAM COUPE with external ram = backward compatibility. AY music is ...
    velesoft velesoft December 2011 Games
  • FPGA ZX SpectrumJust wonder: how many of you would buy "new hardware based" and "in case" ZX Spectrum based on FPGA? ;) [url]http://www.fpgaarcade.com/[/url]

    ... back in. The memory bank paging is such a pain.).
    RAM, and doesn't include the ...
    csmith csmith January 2012 Hardware
  • New interface for ZXThis is my old (2004) unfinished project of internal interface for ZX Spectrum 128+2: ([url]http://velesoft.speccy.cz/hardware_in_development.htm[/u…

    ... (big DIVIDE rom + big DIVIDE ram)

    Complette memory in ... , start menu
    1024kB static ram - first 128kB is used for ... .

    Also +3E rom paging will possible if we need ...
    velesoft velesoft February 2012 Hardware
  • New interface for ZXThis is my old (2004) unfinished project of internal interface for ZX Spectrum 128+2: ([url]http://velesoft.speccy.cz/hardware_in_development.htm[/u…

    ... clones only rom, extended ram, fast ports/memory and ... user mode:
    Any ram expansion of russian clones ... via write protected ram pages (in extra ram 1MB). In ... adress space and here is ram always rewritable = enable ... mode, state of all paging ports, etc...
    velesoft velesoft February 2012 Hardware
  • Ultimate Collected Works, no Underwulde, why?I managed to get my grubby paws on the "Ultimate Play The Game" "The Collected Works" off E-bay.... The set has 1. JetPac 2. Pssst 3. Tranz-AM 4. Co…

    ... the 128 $7FFD is the paging control address, so everything ... From JP:
    [code]
    RAM:7359 KEYB_ROW4_2: ; CODE XREF: KEYB_CHECK_L_R ... out (0FDh), a
    RAM:735D DB FE in a ...
    Korinel Korinel February 2012 Games
  • Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…

    ... 16Kb blocks right onto different RAM pages, it has absolutely nothing ... each block, pages in the RAM page needed, LDIRs it, pages ... are loaded into standard RAM with no paging involved.

    I ...
    na_th_an na_th_an March 2012 Games
  • Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…

    ... right value for the current paging (assuming you don't overwrite ... ). If FATWare is zeroing the RAM, then obviously that no longer ...
    AndyC AndyC March 2012 Games
  • New project: CargandoLeches. Ultraloads with ROMHi This project has started months ago, between decicoder, macleod and me. Uses the best modulation of k7zx (throwing shavings). But this ultraloa…

    ... these models has special paging that allows RAM in lower memory ... emulating the ROM code with RAM).

    Sorry, ... rom to writeprotected 16kB ram in low 16kB. This ... 48 ROM to ZX ram from adress 49152 and ... is number of 16kB ram page in external DIVIDE ...
    velesoft velesoft March 2012 Development
<1…14151617181920…34>

Latest Posts

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HitBox

Word Docs Hits
ram 12.6K 21.4K
paging 1.7K 2.4K

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