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<1…11121314151617…34>
  • Upper RAM replacement module issues with the DivideI got my new upper ram replacement module from Zorn yesterday and seem to be having some issues. When the machine is without the Divide it boots up …

    I got my new upper ram replacement module from Zorn ... manages to boot, the ram passes the memory test i ... When I put the upper ram chips back in place, ... br />
    The upper ram are not on the "OKI ... attempts DMA to the upper RAM and uses unusual timings ...
    gtsamour gtsamour September 2013 Hardware
  • 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 ...
    actualreality actualreality September 2013 Hardware
  • Ram Music Machine on eBay- Ends 29/03/2013Hi everyone, my Ram Music Machine is for sale on eBay, tested working. It's a drum machine and sampler which plugs into the back of the Spectrum. I…

    Hi everyone,

    my Ram Music Machine is for sale ...
    Muig Muig September 2013 Sales
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    ... not) block from tape into RAM I can embed in my ... :)

    No need for turbo, or strange stuff.
    na_th_an na_th_an October 2013 Development
  • POKEs on 128K "upper RAM"?I've been working lately with some 128k games, and I've got this question about RAM in games. I guess most games use RAM pages 5 and 2 to store the …

    ... 've got this question about RAM in games.

    I ... guess most games use RAM pages 5 and 2 to ... the main program, and other RAM pages are used to store ... that needs POKEs placed in RAM pages 1, 3, 4, 6 ...
    Zup Zup October 2013 Games
  • Ben Versteeg's November sales[COLOR="Blue"][B][SIZE="6"]Almost ready[/SIZE][/B][/COLOR] [IMG]http://benophetinternet.nl/hobby/vanmezelf/sales/line.jpg[/IMG] [IMG]http://benophet…

    ... /> [B]Brand new Kempston Mouse Turbo interface[/B]
    Mouse and ... DSDD drive (800KB)
    - 6116 ram and v2.2 rom
    - 6116 ram chip + v2.2 rom: ?8 ...
    bverstee bverstee November 2013 Sales
  • Repalce 4164 RAM by 41464Dear all, I have some amount of 41464 DRAM from old PC VGA card which are useless at the moment. I think to keep them as a spare for the upper 32k R…

    ... spare for the upper 32k Ram made of 4164.

    maskenlos maskenlos December 2013 Hardware
  • DIY Issue 1 Internal 32K RAM expansionFollowing on from the information in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40173"]this[/URL] thread, I finally figured this ou…

    ... of the Issue 1 internal RAM module.

    The pinouts ... when the top 32K of RAM is addressed. Here's a ... the machine saw 48K of RAM, verified with PRINT PEEK 23733 ... machine is seeing 48K of RAM now and that there were ...
    balford balford January 2014 Hardware
  • Turbo save?I'm doing some experiments with turbo loaders, and I don't know how to save turbo blocks on virtual tapes. Spectaculator and fuse don't seem to save…

    ... doing some experiments with turbo loaders, and I don' ... know how to save turbo blocks on virtual tapes ... emulator that can save turbo data to tape files? ... they recognize only some turbo routines... how should I ... information about saving turbo data in tape files?
    Zup Zup January 2014 Emulators
  • Buying ram for W7It's been a long time since I bought any ram for a PC (I think I bought a few DIMMs when they first appeared) so I thought I'd ask here to make sure …

    ... time since I bought any ram for a PC (I think ... /components/memory-pc/ddr2pc2-6400800mhz/ram-804gk.html"]these DDR2 DIMMs ...
    VincentAC VincentAC February 2014 Chit chat
  • From RAM to dim v$() "video buffer" SPEED UP!Hi! This question is related to "quick RAM copy using LET in Basic" ([url]http://www.worldofspectrum.org/forums/showthread.php?t=44296[/url]). Wel…

    ... question is related to "quick RAM copy using LET in Basic ... buffer".
    - A zone of RAM with 160 bytes corresponding to ... that stores the v$ dim RAM position.


    When ... readed from RAMPEEK v$ dir RAM...
    [INDENT]POKE dir,byte ...
    Hark0 Hark0 March 2014 Sinclair Basic
  • ZX81 internal RAM upgrade?It's only a matter of time before I kill my ZX81 due to this slack ram pack :( Is there a tutorial available that will allow me to upgrade my RAM to…

    It's only a matter of time before I kill my ZX81 due to this slack ram pack :(

    Is there a tutorial available that will allow me to upgrade my RAM to 32k or maybe even more?
    stu232 stu232 March 2014 Hardware
  • DivMMC and K-Mouse Turbo incompatibilityToday I tested a setup someone wants to use, but of which he can't get the K-Mouse Turbo working. The setup contains of: - ZX Spectrum 128K (toastra…

    ... 't get the K-Mouse Turbo working.

    The setup ... keyboard interface
    - K-Mouse Turbo interface

    Problem is ... that the K-Mouse Turbo returns 255 on all input ... ports, or the K-Mouse Turbo is not initialized correcly because ...
    bverstee bverstee April 2014 Hardware
  • Unusual custom turbo loaders - with sourcesI have always been fascinated by turbo loaders; my games all feature a TZX version with one of such schemes implemented, and I have been experimentin…

    ... have always been fascinated by turbo loaders; my games all feature ... to 're-save' them as turbo speed data.

    [B ...
    Alessandro Grussu Alessandro Grussu May 2014 Development
  • HDMI generation by cloning video ram(coming from [url]http://www.worldofspectrum.org/forums/showthread.php?p=768257&posted=1#post768257[/url]). A thing I was brainstorming about.. Why …

    ... /microcontroller respond to any video ram change in the ZX Spectrum ... /> No analog circuits, no video ram reading and contention problems.
    ram, with HDMI output...

    bverstee bverstee May 2014 Hardware
  • Simple Question! RAM InterfaceI was messing around on my spectrum yesterday and blew it up! Im sure it has to do with the RAM joystick interface I bought but hadn't tested. Is the…

    ... has to do with the RAM joystick interface I bought but ...
    Taylod1974 Taylod1974 June 2014 Hardware
  • Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…

    ... But since this is in RAM we can later redirect ... best "safest" address in RAM for such a table?< ... (incl. Speccy) do a RAM test
    at startup. ... table before
    the RAM test / it will get overwriten ... Bummer. What if we replace RAM checking
    code with ...
    tstih tstih July 2014 Development
  • Seriously weird Issue 2 issue... (RAM-related)Hi guys; I have been trying to fix up my Issue 2 and have run across a bizarre issue that I haven't seen elsewhere in the forums. Hopefully one of …

    ... /> 2. MEMCHK returned 32767, upper RAM fault. UPRAM85 returned 93, so ... "black screen and red bars" RAM test appears, after which the ...
    Trafferth Trafferth August 2014 Hardware
  • ZX81 + 16k RAM Pack + Original PSU... What's it worth?Hey guys Got my ZX81 this morning its in excellent condition.. [IMG]http://s30.postimg.org/iwetzxku9/IMG_20140818_142443.jpg[/IMG] However, my T…

    ... with original PSU & 16k RAM pack actually worth here? If ...
    dreamscape dreamscape August 2014 Sinclair Miscellaneous
  • For Sale?? Offers? Spectrum ZX81, PSU & 16k RAMHi all I've got a ZX81, 16k RAM pack & original PSU here I purchased sadly it won't work with my TV and I don't want to hack it apart to make compos…

    ... 've got a ZX81, 16k RAM pack & original PSU here ...
    dreamscape dreamscape August 2014 Sales
  • RAM issue for potential 48k buy?Hi guys I've got a 48k in my sight for ?20 but... it has an issue: [QUOTE]"I tested the computer and only displayed a distorted screen. Coloured …

    ... />
    Would this be faulty RAM chips? I've seen similar ...
    dreamscape dreamscape August 2014 Hardware
  • Wanted: ZX81 boxed with 16k RAM PackI'm looking for a clean, working and good condition ZX81 with original Sinclair 16K RAM Pack. Would prefer if it was in a box. Oh and if you have 3D …

    I'm looking for a clean, working and good condition ZX81 with original Sinclair 16K RAM Pack. Would prefer if it was in a box. Oh and if you have 3D Monster Maze that would be the icing on the cake, thanks.
    sj_howlett sj_howlett August 2014 Wanted
  • Is my ZX81 RAM Pack OK?Hi guys I've just taken my 16k RAM pack apart to give it a clean inside and out and i noticed these strange burn type marks!? [IMG]http://s7.postim…

    ... 've just taken my 16k RAM pack apart to give it ... this burn marks!? Is my RAM pack damaged I haven't ...
    dreamscape dreamscape August 2014 Hardware
  • 48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…

    ... points me towards checking the RAM.

    I have entered ...
    wep855 wep855 August 2014 Hardware
  • Spectrum stuff for sale (ZX81, RAM pack, Tapes... etc)Selling the following: [IMG]http://s26.postimg.org/uk0ntdsq1/IMG_20140902_205737.jpg[/IMG] [IMG]http://s26.postimg.org/ronkmioq1/IMG_20140902_20575…

    ... original too)
    ZX81 16k RAM pack - Working
    Spectrum tapes ...
    dreamscape dreamscape September 2014 Sales
  • Early ZX80/81 RAM Pack???Hey all I got given this RAM pack... It doesn't work (i know why now) but compared to my RAM pack this one is really strange... Is this a ZX80 RAM p…

    ... />
    I got given this RAM pack... It doesn't work ... now) but compared to my RAM pack this one is really ... strange... Is this a ZX80 RAM pack or something as it ...
    dreamscape dreamscape September 2014 Hardware
  • Turbo Kart Racer: MASI'm confident that MAS on a loading screen of Turbo Kart Racer means Michael Sanderson: * He worked with Players on other projects too * Style is res…

    I'm confident that MAS on a loading screen of Turbo Kart Racer means Michael Sanderson:
    * He worked with Players on other projects too
    * Style is resembling his other works
    * He used MAS signature on other works.
    moroz1999 moroz1999 September 2014 Infoseek database
  • ZX81 internal RAM board?Just a quick question to Zorn (amongst others). What would the issues be with fitting one of Zorn's RAM boards into an unexpanded ZX81? Seems to me…

    ... fitting one of Zorn's RAM boards into an unexpanded ZX81 ... a lot of the official RAM pack's internal circuitry is ... one - preferably the 32K upper RAM board, 'cos I never had ...
    DEATH DEATH October 2014 Hardware
  • The complete Manic Miner RAM disassemblyHot on the heels of the [url="http://skoolkit.ca/disassemblies/jet_set_willy/"]Jet Set Willy disassembly[/url], here is [url="http://skoolkit.ca/disa…

    ... /manic_miner/"]The complete Manic Miner RAM disassembly[/url] (Bug-Byte version ...
    SkoolKid SkoolKid October 2014 Announcements
  • Interface 1bis RAM Drive modificationAll Interface 1bis users I hope I am not interfering with Dan, but I saw on his site that he has a RAM Drive upgrade/modification for the Interface …

    ... site that he has a RAM Drive upgrade/modification for the ... have an on-board 128K RAM drive, the user must install ...
    Pierre Pierre October 2014 Hardware
<1…11121314151617…34>

Latest Posts

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  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    mel the bell on April 21
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