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Search Again :: Adv Search 1000 results in 0.017s
<1234567…34>
  • DivMMC + ESXDOSHowdy, I'm trying to implement DivMMC and ESXDOS on my FPGA-based Spectrum compatible, ZX Prism. Could anyone tell me under what bus conditions the …

    ... , I'm trying to implement DivMMC and ESXDOS on my FPGA ... bus conditions the ESXDOS ROM/RAM is paged in and paged ... />
    Also, how does DivMMC switch RAM pages at 0x2000?

    JeffB JeffB August 2014 Emulators
  • New (latest) Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike DaillyNew latest Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike Dailly V2.15.2 As seen on Facebook yesterday: [quote]Mike D…

    ... "whole" machine to have a full RAM machine, you will now need ... address $0000, or the DivMMC may well page in.
    DivMMC direct paging control
    ... Current ROM and DivMMC registers added to rewind history ...
    Luzie Luzie March 2022 Emulators
  • More "What could have been"... The Z280.So in chasing up the Loki specs, I happened upon some parallel developments... And had Sinclair gotten to make the Loki, there could have been some i…

    ... full ram memory mapping. Some important spectrum devices have snapshot buttons (multiface, divmmc ... for specific memory addresses (divmmc, currah microspeech) that cause ... problem if you allow ram paging in the ... address 0x0562 then the divmmc would come in ...
    Alcoholics Anonymous Alcoholics Anonymous October 2021 Hardware
  • The Black And Grey Spectrum......I think I got this right - Black Speccy - +2 Grey Speccy - +2A Is this right......... I had a +2 along time ago and Frank Bruno's boxing would not…

    +3Dos Rom is present, it's essential for full RAM access to say the least.
    dasteph dasteph October 2004 Sinclair Miscellaneous
  • Unpublished spectrum gameHi there I have a Spectrum PDS development environment and before I get rid of my old PC which has an ISA slot I thought I should ask this question i…

    ... your memory dump is the full RAM space -- this will certainly crash ... a snapshot format with a full 48k ram dump, uncompressed, with about ...
    Alcoholics Anonymous Alcoholics Anonymous March 2006 Games
  • Multiface 3 SwitchesHi All I finally got my Multiface 3 today for my +2a. After reading the instructions and lots of odd fiddling with these switches at the top of it i…

    Alternate ROM maybe? Perhaps a full RAM environment? There are just so many possibilities. Hey, maybe it's a time bomb - goes bang when you try and load Jet Set Willy :) heh heh - an infinite death POKE. :lol:
    DEATH DEATH December 2006 Hardware
  • A guy talking about the Spectrum on Youtube[url]http://www.youtube.com/watch?v=ujzEvTyW1Hc[/url] I wanted to post a comment, but I don't know what to say. You gotta give them credit for tryin…

    Hm, did he type out LOAD "" key by key, while stating "this thing has 48k" earlier? Must be a 128k without it's full RAM then :lol:
    XTM of TMG XTM of TMG March 2007 Chit chat
  • Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …

    ... 48K and then a second full RAM test by writing $00 ... fault in the screen RAM pixel area would be ... , modified to simulate random faulty RAM.

    This ... /> It does not test 128K RAM.

    Once one ... tapefile of [b]16/48K RAM Tester[/b] here:-
    ...
    Digital Prawn Digital Prawn January 2009 Games
  • Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …

    ... 48K and then a second full RAM test by writing $00 ... common failure modes of Spectrum RAM with that test. I ... for the 4116 lower RAM) the most common failure ... for bit fade, once RAM has passed the inversion and ... fill tests, set the RAM for an inversion pattern, ...
    Winston Winston January 2009 Games
  • maximum addressable RAM for a Z80 using bank switching?What is the maximum addressable RAM for a Z80 using bank switching? The Enterprise64 home computer could address up to 4MB, is this the limit for a …

    ... better way is use a full RAM address decoder and make it ... can address 32TB
    of ram. And using different IO value ... choose where to map this ram into Z80 address space.
    ArtemKuchin ArtemKuchin February 2013 Hardware
  • Migrating OS to SSDIve been thinking of getting a 120g SSD drive for my pc and migrating the OS (Win7 64bit) to it and just having the OS on it, nothing else (Got 1.5TB…

    ... was also looking to a full ram upgrade, 16g ddr3 2000, its ...
    Macc Macc July 2013 Chit chat
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... now takes advantage of the full RAM.

    The TAP files ...
    Alessandro Grussu Alessandro Grussu September 2013 Development
  • ESXDOS 0.8.5 and .Z80 on +2B or +3Last week I received some .Z80 snapshot files from a DivMMC EnJOY! user to test. These files didn't work on his ZX Spectrum +2B. [URL="http://benophe…

    ... on the DivMMC EnJOY! as it has 128KB of RAM, and a ... load the toastrack ROM into DivMMC EnJOY! RAM when loading 128K snapshots ...
    bverstee bverstee April 2014 Hardware
  • Fully refurbished ZX Spectrum 48K boards incl. ULA- Including ULA (version that [URL="http://www.bytedelight.com/?p=41"]corresponds to the board issue[/URL] - click to find out more about ULA version…

    ... focus on the add-ons (DivMMC EnJOY!, RAM, Kempston Joystick, Stereo Kits ...
    bverstee bverstee February 2015 Sales
  • The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…

    ... interface, and behind the DivMMC and DivMMC EnJOY! interfaces.
    Full TR-DOS support ... /> --------------------------
    ROM and RAM in More Detail
    --------------------------< ... , but there are more ram pages available.
    ...
    bverstee bverstee October 2015 Hardware
  • DIVMMC interface versus DIVIDE interfaceDIVMMC/PICODIVSD/DIVSDNANO is one same device with identical CPLD chip and same memory/features. DIVMMC use 8kB of eeprom with code for boot system f…

    ... version of system ESXDOS use full 32kB ram + next 8kB swap on ... Memory mapping is identical with DIVMMC. Divide support also true ALLRAM ... can be theoretically ported to DIVMMC, but this need rewrite IDE ... adapter is functionally same as DIVMMC and as bonus is ...
    velesoft velesoft August 2016 Hardware
  • ZX-81 Ram Pack problemHi! I know this is a ZX Spectrum forum, but I am hoping someone here might be able to help me out... I have posted this to c.s.s. but noone was able…

    ... which is probably normal since ram
    test takes a ... original
    Sinclair ZX 16k ram pack issue 3 .
    ram pack :

    ... display file always in full-size and just fills ... a posibility of faulty RAM somewhere on the lower ...
    Tom-Cat Tom-Cat September 2005 Sinclair Miscellaneous
  • Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…

    ... ZXMMC (which has no onboard RAM and so is only supported ... retained in the built-in RAM and are instantly available when ... run from the built-in RAM, including ZX80 and ZX81 emulators ... using the same system)
    [*]Full programming API available, including call ...
    glancaster glancaster January 2007 Hardware
  • RAM Turbo Interface + DivideHi! I have ordered a Divide (the one without the passthrough) and I obviously want to play using a joystick on my Speccy+. :D Does anyone know (or c…

    ... try) if the RAM Turbo Interface, which has full extension port, will ...
    Pyjamarama Pyjamarama May 2008 Hardware
  • LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…

    ... the detailed timings of contended RAM. It gives timings for Z80 ... in, or reading/writing, contended RAM.

    I can decipher ... full screen in situ (either in 48K, or double buffered -- paging RAM ...
    ajmoss ajmoss June 2010 Development
  • Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …

    ... />
    The O.C.P Full Screen Editor/Assembler was published ... =http://img543.imageshack.us/i/ram.png/][IMG]http://img543.imageshack ... .us/img543/1706/ram.png[/IMG][/URL]

    ASM ASM November 2010 Development
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    50Hurts - Full-screen 50Hz 1-pixel horizontal ... they can stay in uncontended RAM.

    Admittedly there isn ...
    joefish joefish March 2011 Development
  • 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…

    ... .altervista.org"]website[/URL] the DIVMMC, a new interface for SD ... snapshots, two sd slots, 128K ram and operating EsxDos system. The ...
    Saltor Saltor May 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…

    ... for enable this "divide 128kB ram mode"

    Existing ... systems can also access to full 128kB ram and 8kB rom image ... system is placed on different ram space = ram page 3 are not ... MODE with 256kB ram (on port #E3) and DIVMMC interface is comaptible ...
    velesoft velesoft June 2013 Hardware
  • 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…

    ... which you might recognise. (The full Compendium will be put on ... two different segments of free RAM). Although the routine will ... COPY string to RAM or RAM to string or RAM to RAM
    GO ... or destin location if in RAM;
    b$=source string ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • Replacement Spectrum +3 RAM ChipsHi all Bought a +3 last week with a RAM issue, so I have removed the old chips, added sockets and now just need a full set of chips to get her back…

    ... +3 last week with a RAM issue, so I have removed ... and now just need a full set of chips to get ...
    actualreality actualreality September 2013 Hardware
  • How much would you pay for this FPGA clone?...given that a mint 128 goes for around ?125. [img]https://dl.dropboxusercontent.com/u/15659782/chloe280seboxed.jpg[/img] Features: [list] [*]100%…

    ... acceleration up to 14Mhz
    [*]Full ULAplus support including Timex video ... 80 column mode)
    [*]256K RAM (compatible with Spectrum 128 and ... off tape
    [*]built-in divMMC with esxDOS
    [*]SD card ...
    chev chev April 2014 Hardware
  • New MEMFACE projectMEMFACE is my old project, but never finished. Now is PCB done (at the post office) and I write firmware for CPLD. MEMFACE is interface with external…

    ... /> - external rom can full replace internal zx rom and ... interfaces with own memory(divide/divmmc/+D,etc...)
    - ... DIVIDE 512kB memory (classic divide, divmmc, divide plus)
    - emulation ... MULTIFACE devices
    - all ram features
    - rom switching ...
    velesoft velesoft November 2014 Hardware
  • 128K RAM tester as .TAP?I was sure that I've seen a RAM tester that can be loaded with e.g. DivIDE or DivMMC EnJOY! as .TAP. But I can't find it (been searching through the …

    ... RAM tester that can be loaded with e.g. DivIDE or DivMMC ... 128K machines, and if lower RAM works fine, and there is ... a small error in upper RAM.

    I have a ...
    bverstee bverstee January 2015 Hardware
<1234567…34>

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