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<1234567…34>
  • Tau Ceti 128K on +3?does anyone know if there are issues with running [URL="http://www.worldofspectrum.org/infoseek.cgi?regexp=%5ETau+Ceti+-+The+Special+Edition$&pub=%5E…

    ... to 48 basic with enable ram 128kB

    SPECTRUM command ... switch to 48 basic with disable ram 128kB (it's different than ... 48 rom with enable 128kB ram.

    "48 BASIC" in ... ) switch to 48 basic with disable ram 128kB
    velesoft velesoft November 2010 Games
  • Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…

    ... in a similar way to disable all onboard memory - ... MEMRQ +----+--/\/\/\/---+------>ULA, top 32K RAM
    | | |
    | |
    ... then you could selectively disable CPU access to any piece ...
    Jonathan Harston Jonathan Harston June 2007 Hardware
  • Disable IF1 with switchOk probably silly question time but if you don't ask you'll never know, I have the JS128 which is great and has a jumper on the board to disable the …

    ... jumper on the board to disable the onboard DIVMMC(or whatever ... have to unplug my IF1,Ram Turbo and Ramprint, so i ... switch to the IF1 to disable it and the rest of ...
    thesender thesender March 2017 Hardware
  • How do I know the RAM size?Just left my parents after cleaning out my pile of old stuff in their basement. Know what I found? My old ZX Spectrum.... Those were the days! Never …

    ... ZX81, though.
    3K om RAM, my friends!
    My question ... I tell what size of RAM I've got in my ...
    David David February 2001 Sinclair Miscellaneous
  • HELP 4532 or 4864 RAM wanted !Hello My real spectrum fell off yesterday I know that one RAM memory chip is out of order There was 8 X HM4864P-2 but I saw in the Spectrum schemati…

    ...
    I know that one RAM memory chip is out of ... here to set 16K of RAM so 32K are enough to ...
    patrick delvenne patrick delvenne January 2005 Wanted
  • RAM Music MachineBoxed RAM Music Machine Sampler (for 48K, Plus, 128K, Plus two) includes the tape, microphone, manual, even original mic stand! I last got this wor…

    Boxed RAM Music Machine Sampler (for 48K, ...
    racingroom racingroom March 2005 Sales
  • Boxed 32k Ram packPicked one up a few weeks ago at a car boot sale with a boxed 16k Speccy. Is the ram pack worth anything? Not seen any on Ebay. Thanks in advance, G…

    Picked one up a few weeks ago at a car boot sale with a boxed 16k Speccy. Is the ram pack worth anything? Not seen any on Ebay.

    Thanks in advance, Gnorman
    Gnorman Gnorman June 2005 Sales
  • Help! BREAK KEY disable?Someone has asked me... Is there a poke or routine to disable the Break key in 128K BASIC?

    Someone has asked me... Is there a poke or routine to disable the Break key in 128K BASIC?
    chaosmongers chaosmongers July 2005 Development
  • Graphic issues with SpinOk, I've always meant to get this sorted out but never did for various reasons that I don't remember at the moment. I get choppy framerates with Spi…

    ... -colour effects, smoothing, and enable/disable (no diff) full screen and ... XP 2.8Ghz, with 512MB Ram, and an ATI Radeon 9600 ... AGP with 128MB Ram. Latest directX (9.0c) installed ...
    Arjun Arjun July 2005 Emulators
  • 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 :

    ... a posibility of faulty RAM somewhere on the lower ... />
    Also when no ram pack is present I can ...
    Tom-Cat Tom-Cat September 2005 Sinclair Miscellaneous
  • R Register, Contended RAM and ClonesHi. I've had a quick look at the CSS FAQ but didn't spot quite what I'm looking for (also the CSS FAQ doesn't have much detail of the clones - there …

    ... is the effect of contended RAM on the R-register? I ... run any code in contended RAM, but I do make several ... , but then without the contended RAM the HALT would take place ...
    icabod icabod July 2006 Development
  • Z80 -- disable printing?Does anyone know a way (config setting or patch) to disable ZX Printer emulation in Gerton Lunter's Z80 version 4? Without disabling RS232 (print-to…

    ... (config setting or patch) to disable ZX Printer emulation in Gerton ...
    robert@fm robert@fm August 2006 Emulators
  • RAM Test ROM?Found a link to this: [url]http://www.retroreview.com/iang/TestSpec4.zip[/url] in another thread, and fired it up in SPIN, but I have no clue how to…

    ... this to determine which physical RAM chip needs replacing, and/or ...
    trellis trellis September 2006 Hardware
  • Q. on WinXP logon screen (how to disable?)Aaaargh! I am sitting in front of an annoying computer. It's driving me crazy! How the f-in A does one disable the stinking logon screen (the "cla…

    ... f-in A does one disable the stinking logon screen (the ...
    Skarpo Skarpo September 2006 Chit chat
  • 256K RAM chips in Spectrum 128KSince I have lot of 256K RAM chips, and my 128K has RAM error, I think about replacing all 16 RAM (64K ones) chips with 256K chips. Then it would be …

    ... have lot of 256K RAM chips, and my 128K ... has RAM error, I think about ... replacing all 16 RAM (64K ones) chips with ... be 'Spectrum 512K' - something like RAM in Pentagon.

    ... bank switching of that extra RAM - we need 2 bits ...
    piters piters October 2006 Hardware
  • Where to get Spectrum RAMSigh. Even obsolete nixie tubes seem to be easier to get hold of than Spectrum RAM. I've tried the usual suspects (eBay and google searches), but not…

    ... get hold of than Spectrum RAM. I've tried the usual ... dead Spectrums with suspected bad RAM. It'd be nice to ...
    Winston Winston November 2006 Hardware
  • Spectrum RAM Paks...This jogged my memory (excuse the pun!!) : [url]http://cgi.ebay.co.uk/CURRAH-32K-RAM-PACK-BOXED-SINCLAIR-ZX-SPECTRUM_W0QQitemZ150057889352QQihZ005QQ…

    ... ebay.co.uk/CURRAH-32K-RAM-PACK-BOXED-SINCLAIR-ZX- ... with one of these 32K RAM paks!
    My poor ... 16K model with this 32K RAM pak.

    It ... them!

    16K RAM paks were very popular for ...
    itsallgood itsallgood November 2006 Sinclair Miscellaneous
  • Betadisk RAM modificationHello! I've ocassionally found this on the web: [url]http://www.nairam.sk/betadisk.html[/url] [url]http://www.nairam.sk/betadisk_02.gif[/url] Doe…

    ... it adds a little shadow RAM into betadisk to be paged ...
    Sonic Sonic December 2006 Hardware
  • Black paper, white border. Ram fault?We have a speccy that wont work properly. When we power it up, we get white border around a black screen. We swapped the rom and ula with a working o…

    We have a speccy that wont work properly. When we power it up, we get white border around a black screen. We swapped the rom and ula with a working one, and we got the same result.

    is this a ram fault? How can we check ram chips?
    Arda Arda December 2006 Hardware
  • 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…

    ... (which has no onboard RAM and so is only supported ... of on-board non-volatile RAM (which would allow it ... be the 512K battery-backed RAM and a snapshot button. ... in the built-in RAM and are instantly available ... run from the built-in RAM, including ZX80 and ZX81 ...
    glancaster glancaster January 2007 Hardware
  • Wanted 10 - 4116 Ram ChipsHi Can any one help I am trying to get hold of 10 4116 RAM chips for a 48K Spectrum. Does any one know who might stock them. I can get a minimum of …

    Hi
    Can any one help I am trying to get hold of 10 4116 RAM chips for a 48K Spectrum. Does any one know who might stock them. I can get a minimum of 50 from Hong Kong but only need 10.

    Best wishes
    Martin Baugh
    Martin Baugh Martin Baugh March 2007 Wanted
  • Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …

    ... $8000 ; run in fast RAM

    di ; disable interrupts

    ; copy BASIC ROM to RAM


    ; page shadow RAM into ROM area

    chev chev March 2007 Emulators
  • Testing RAM Chips After RemovalHi I am going to use Winstons Hot Air Gun method of removing the RAM chips from a 4S circuit board. I wish to check the RAM chips, I have a Logic Pr…

    ... Gun method of removing the RAM chips from a 4S circuit ... . I wish to check the RAM chips, I have a Logic ...
    Martin Baugh Martin Baugh April 2007 Hardware
  • Unconventional way of diagnosing a faultHi everyone Some time ago I got a 48k Spectrum (issue 3B board) in a pretty bad condition. I believe the power supply transistor TR4 failed, causing…

    ... access and check Spectrum's RAM from Galaksija.

    RAM in sync with the ... these RAM chips.

    Is it possible to disable ... from accessing the video RAM) without affecting the part ... the lower 16KB of RAM? What happens if you ...
    Avian Avian May 2007 Hardware
  • Ram Turbo InterfaceHi all, Can any one tell me if the Ram Turbo Joystick Interface is compatible with Kempston Joysticks? Or are both the Joystick ports Sinclair 1 and…

    Hi all,
    Can any one tell me if the Ram Turbo Joystick Interface is compatible with Kempston Joysticks?

    Or are both the Joystick ports Sinclair 1 and 2

    It is the one with the Rom port on it.
    swift240 swift240 June 2007 Hardware
  • +2B ram chips?Hi all, I have got 2 Plus2B`s and 1 Plus2 gray case. Ok the one Plus2B don`t work, so I tried to see if I could pin down the problem. I changed the …

    ... br />
    There are 4 ram chips on sockets on board ... Plus2B.
    The one ram chip IC6 had a pin ... br /> I then removed 2 ram chips IC6 and IC4 replace ... dwith 2 other ram chips that to be honest ... br />
    If its the ram chips then I shall buy ...
    swift240 swift240 June 2007 Hardware
  • +D and RAM Turbo interfaceJust a quick note to let a few guys in particular know that my RAM Turbo does in fact work with my +D interface. I checked continuity through the RA…

    ... particular know that my RAM Turbo does in fact ... I checked continuity through the RAM Turbo, and found all lines ... used to have a second RAM Turbo, and of course ... is a clone. The other RAM Turbo, which, alas, ... external devices, or som RAM Turbo interfaces don't ...
    DEATH DEATH June 2007 Hardware
  • Alternative chips for upper RAM blockDoes anybody know of a way to use 4464 chips instead of 4164 for the upper RAM block in a 48K machine? If not 4464 then something a little more avai…

    Does anybody know of a way to use 4464 chips instead of 4164 for the upper RAM block in a 48K machine? If not 4464 then something a little more available than the 4164. Winston? Piters??

    TIA
    DEATH DEATH August 2007 Hardware
  • What I hate about computers and/or video gamingYesterday I spent approximately four months (subjecively that is, objectively it was around two to three hours) fixing my mate's PC. I won't bore you…

    ... there's no option to disable this "feature". I ... only having 64MB of RAM (which is shared between ... program and the video RAM). The game authors did ... this tiny amount of RAM, but more would have ... person shooters). You want to disable automatic aiming. Nope, you ...
    ewgf ewgf August 2007 Chit chat
  • Wipe Out by KB RamWhilst doing a long-overdue update for Speccy Spoilers, I noticed that one of the latest additions is a game which doesn't appear to be in the archiv…

    ... was written by a KB. Ram in 1987. It's very ...
    Daren Daren September 2007 Games
<1234567…34>

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HitBox

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disable 1.8K 2.2K
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  • Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code:<br /> <br /> [CODE]<br /> ;; ram-check<br /> L11DA: LD H,D ; Transfer the top value to the HL registe…
  • How do I know the RAM size?Just left my parents after cleaning out my pile of old stuff in their basement.<br /> Know what I found? My old ZX Spectrum.... Those were the days!<…
  • HELP 4532 or 4864 RAM wanted !Hello<br /> <br /> My real spectrum fell off yesterday<br /> I know that one RAM memory chip is out of order<br /> There was 8 X HM4864P-2 but I saw …
  • RAM Music MachineBoxed RAM Music Machine Sampler (for 48K, Plus, 128K, Plus two)<br /> <br /> includes the tape, microphone, manual, even original mic stand!<br /> <b…
  • 'Valkyrie 17' by Ram JamIf you still need this title, please drop me a line at wadsterboy/AT/hotmail.com.
  • a.t.ram (atram)I just picked this up today. Is it on anyones WIP pile?
  • Boxed 32k Ram packPicked one up a few weeks ago at a car boot sale with a boxed 16k Speccy. Is the ram pack worth anything? Not seen any on Ebay.<br /> <br /> Thanks i…
  • Disable BREAK 128 basicDoes anyone know how to prevent BREAK in 128k basic?
  • Help! BREAK KEY disable?Someone has asked me... Is there a poke or routine to disable the Break key in 128K BASIC?
  • ZX-81 Ram Pack problemHi!<br /> <br /> 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 no…

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