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Search Again :: Adv Search 1000 results in 0.018s
<1…78910111213…34>
  • zx81: is there a 16kb ram limit for basic?first of all, sorry to all about posting a question about zx81 in a forum mostly about zx-spectrum - i didn't want to offtopic questions here anyway,…

    ... time were only predicting 16kb ram extension, and this may the ... 32kb, 48kb or 56kb of ram?
    nitrofurano nitrofurano April 2012 Sinclair Basic
  • Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …

    ... br />
    Next, the section RAM-READ begins examining and modifying ... each possible RAM location, from low to ... passed from testing lower RAM to upper RAM. Here is an example ... routine passing from lower RAM to upper RAM, but I did see ...
    Zorn Zorn April 2012 Hardware
  • Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …

    ... ; pair.

    ;; RAM-FILL
    L11DC: LD (HL ... JR Z,L11EF ; forward to RAM-DONE if faulty.
    < ... />
    [CODE]
    ;; ram-check
    EX DE,HL ...

    ;; RAM-FILL
    L11DA: LD (HL ...
    antoniovillena antoniovillena April 2012 Development
  • 4116 Ram chip replacements?Hello. I am in the work of gathering replacement parts for my speccy 48k. And I would like to know what chips is good replacement for the 4116 ram ch…

    ... good replacement for the 4116 ram chips, and where can I ...
    Johan1973 Johan1973 April 2012 Hardware
  • OpenSE BASIC 3.1.1The eagle-eyed will have noticed that [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0027510"]SE BASIC[/url] got an update last week. As a te…

    ... section 50B of the UK Copyright (Computer Programs) Regulations 1992 amendment ... to the UK Copyright, Designs and Patents Act 1988 ... Printer support is removed, the RAM formerly used for the printer ...
    chev chev May 2012 Sinclair Basic
  • Petition : UK Government - Abandon changes to copyright law[url]http://www.change.org/petitions/uk-government-dept-of-business-innovation-skills-abandon-proposed-changes-to-orphaned-works-copyright-law?utm_ca…

    ... -proposed-changes-to-orphaned-works-copyright-law?utm_campaign=petition_created_email&utm_medium ... that all works where the copyright holders are unknown or uncontactable ... of creators' current rights under copyright law and requires creators to ...
    deadpan666 deadpan666 July 2012 Chit chat
  • Issue 1 ram connectors....Hi Does anyone have the pinout of the Issue 1 internal RAM connectors, for the 16K-> 48K upgrade board, as I'd like to try and make myself a board, a…

    ... of the Issue 1 internal RAM connectors, for the 16K-> ...
    prime prime July 2012 Hardware
  • RAM Turbo without a slot?Hi! I got this RAM Turbo joystick interface which surprisingly came without a cartridge slot inside. Would there be any reason someone should cripple…

    Hi! I got this RAM Turbo joystick interface which surprisingly ...
    pkersey pkersey August 2012 Hardware
  • Copyright offenses officially as bad as child abuseFirst Demonoid (a very well know tormenting site) suffers a week of unusability due to a well organised hacking attack, and then the site gets raided…

    ... download. Four years for a copyright offense.

    [url]http ...
    ewgf ewgf August 2012 Chit chat
  • copying between RAM pagesSay I'm storing stuff in RAM pages 0,1,3,4 which gets used in 6,7 (which I am) and I might want to transfer up to 7kb at a time (which I do) and I do…

    ... I'm storing stuff in RAM pages 0,1,3,4 ...
    Battle Bunny Battle Bunny August 2012 Development
  • Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …

    ... machine worked (mostly). Change a RAM chip, and the display cleaned ... , one pixel line from the copyright message on the initial 128K ... /> IC15
    IC16
    All RAM chips
    IC6

    Spirantho Spirantho August 2012 Hardware
  • Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …

    Does anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ?
    Looking at schematics it has to be simple solution, probably king of interleaving, but I could not find any details.
    kpuchatek kpuchatek October 2012 Hardware
  • Joystick Interface with built in RAM expansion?Is there such a thing as a RAM pack with a joystick interface built in?

    Is there such a thing as a RAM pack with a joystick interface built in?
    stu232 stu232 November 2012 Hardware
  • CAT!RAM and PUTRAMLast year sometime I posted a couple of routines to: * catalogue the 128k RAMdisk in BASIC; * move RAMTOP and the stacks from BASIC. CAT!RAM and PUTR…

    ... from BASIC.
    CAT!RAM and PUTRAM are updated versions ... />
    As CAT!RAM is in BASIC and is ... swapping around RAM pages to get at ... threshold.

    CAT!RAM prints file name & type ...
    The listings follow. CAT!RAM will work on any 128k ...
    Battle Bunny Battle Bunny December 2012 Sinclair Basic
  • Lot's of ZX Spectrum parts: RAM chips, ULA's, etcI have new stock of 100% tested parts. I even got my hands on a bunch of ULA's!! [IMG]http://benophetinternet.nl/hobby/sales/parts/IMG_6068.JPG[/IMG…

    ... ]

    Prices:

    - Ram chips: 4164, 4532, 4116, etc ...
    bverstee bverstee December 2012 Sales
  • Ram test / diagnostic software for 128k?I need a ram test program urgently (as I have to bring this machine into the party place tomorrow) yet I couldn't find any in infoseek by typing "ram…

    I need a ram test program urgently (as I ... any in infoseek by typing "ram test" :) And most of the ... .

    Are there any ram test suite which runs from ...
    Arda Arda December 2012 Sinclair Miscellaneous
  • RAM used / corrupted by +3DOSAs I said previously, [url=http://www.worldofspectrum.org/forums/showthread.php?t=41775]I'm trying to put some games in hard disk[/url] so they can b…

    ... other question is how much RAM is corrupted in page 7 ... paging/transferring/rebuilding pages in RAM), so the games are loaded ...
    Zup Zup December 2012 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 …

    What is the maximum addressable RAM for a Z80 using bank ... kB) are used as video RAM, but can be used for ... , the additional 64 kB of ram is mapped on pages 248 ...
    Rebelstar Rebelstar February 2013 Hardware
  • Pirate Bay to sue over copyright infringement...I don't know if this is genuine, or just a wind up, but; "[COLOR="Blue"]A Finnish anti-piracy group has copied?down to the CSS file?the design and l…

    ... we will sue them for copyright infringement.?[/COLOR]"

    I ... -will-sue-copycat-site-for-copyright-infringement/[/url]
    ewgf ewgf February 2013 Chit chat
  • +2 fried using the datacorder(Hi, first post here.) I just got hold of an extremely battered and bruised +2 sold to me for spare parts. As usual I plug it in, hook it up to the …

    ... reboots to a half-complete copyright message. Taking the power connect ... either the ULA or some RAM that's bitten the dust ...
    actel actel February 2013 Hardware
  • Spectrum 128k +2 grey RAMhi all, the manual say that ram ic's should be KM4164B-15P but when i open my spectrum (not repaired by anyone) the ram chips was KM4164B-12 is thi…

    ... />
    the manual say that ram ic's should be KM4164B ... (not repaired by anyone) the ram chips was KM4164B-12
    ram?

    something else, ... 48k issue 2 zx with RAM chips IC 6-13< ... to remove all the 48k ram chips? it will not ...
    xaris_sm xaris_sm March 2013 Hardware
  • RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…

    ... try to diagnostic a probably RAM fault on my +2 grey ... have some new and old RAM ics KM4164B-12 [B]only ... i can identify the faulty RAM ic?
    any tips will ...
    xaris_sm xaris_sm March 2013 Hardware
  • +2 grey Contended RAMhi all, i have some quenstions about, contended RAM are banks 1,3,5,7 banks are the pairs of IC's (4164), so 1 pairs = 16k X 4 pairs = 64k this 64…

    ... quenstions about,

    contended RAM are banks 1,3,5 ...

    now psysical, contended RAM are the IC's on ...
    xaris_sm xaris_sm March 2013 Hardware
  • ZX81 + 16K RAM PackUp for sale is a ZX81 packaged with power adapter, aerial cable, ear/mic cable and 16K RAM Pack. I hooked it up to the tv and although the power sup…

    ... , ear/mic cable and 16K RAM Pack.

    I hooked ... unable to test the 16K RAM Pack.

    ZX81 + Power ... [/IMG]

    Complete 16K RAM Pack:
    [IMG]http://i629 ...
    drevans drevans May 2013 Sales
  • 16K/48K Lower RAM (4116) replacement.You may want to read [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37957"]this thread[/URL] for background information on the quest t…

    ... based replacement for the lower RAM that works in all 16K ... the column address to the RAM and so there isn't ... that appear on the lower RAM address lines. In particular, in ... is the ZX Spectrum Lower RAM Replacement Module, pictured below:
    Zorn Zorn May 2013 Hardware
  • Spectrum+ Noisey Picture ProblemHi fellow Spec-chums I need your help! I've recently brought a 48K+ Spectrum(issue 6A) that I'm trying to repair. I did all initial tests on it prio…

    ... it showed a fuzzy Sinclair copyright message, and it had a ... that the feeds the lower ram and the tea(tv) chip ...
    Your Spec-chum Your Spec-chum May 2013 Hardware
  • ZX Spectrum 48k Issue 2 Faulty Ram?Hi, I have a faulty ZX Spectrum Issue 2 motherboard. Looks in very tidy condition. Though I'm getting random columns of blocks and flashing cursors…

    ... read would indicate a lower ram failure. I have lightly touched ... seem cool.

    The ram fitted is 8322 4116 2N ...
    serene serene June 2013 Hardware
  • 4116 Ceramic Ram ChipsHi all, I have a few 4116 Ceramic Ram Chips to sell. If you have any interest, please PM. Greetings, Retrorepair

    Hi all,

    I have a few 4116 Ceramic Ram Chips to sell.

    If you have any interest, please PM.

    Greetings,
    Retrorepair
    retrorepair retrorepair June 2013 Sales
  • Anyone got any 4146 RAM chips?Hi I'm looking for some 4164 RAM chips, as would be fitted to a 128k Spectrum (+, +2, +3 I think they all use the same memory). Not out of a 48k mac…

    ... 'm looking for some 4164 RAM chips, as would be fitted ...
    JonB JonB June 2013 Wanted
  • 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…

    ... an address (if referencing free RAM). Any string names can ... 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 expression ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
<1…78910111213…34>

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