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Search Again :: Adv Search 1000 results in 0.048s
<1…18192021222324…34>
  • Using even ports for input?I've been looking for unused ports to use with my clashbasher interface. I understand that the spectrum only considers A0 when decoding its input p…

    ... socket.

    However the ULA is decoupled from the Z80 ... be read.
    So why not set the high byte to ... so the resistors between the ULA and the Z80 would ... is is there any reason not to use even ports in ... between the z80 and the ULA.

    As long ...
    Basher Basher January 2014 Hardware
  • Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…

    ... />
    I appreciate this is not full address decoding, and that ... A5-A7 are low, if not that A0-A4 are also ... ), but when the request is detected, the 8 pins of the ...
    joefish joefish January 2014 Hardware
  • SU issue 113: Great Eight 3, why does not have the slideshow in infoseek?This entry: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0013733[/url] does not show the screenshots of the contents, even though it is no…

    ... =0013733[/url]

    does not show the screenshots of the ... contents, even though it is not denied or it has been ...
    Ivanzx Ivanzx January 2014 Infoseek database
  • Which Windows Emulator will support SPECTRA?I want to start crossdeveloping games for SPECTRA, but it is a pain in the ass to save the TAP on USB Stick or SD Card and test them on my eMac SP Em…

    ... hardware for SAM, SPECTRA is not deniced, so we have the ... ]
    Everybody supports ULA+ which is still not available and you only ...
    LCD LCD January 2014 Emulators
  • Issue 2 with 5C102E + cockroach on eBay(Posted here and not sales as it's not mine :)) Came across [URL="http://www.ebay.co.uk/itm/151225493166"]this[/URL] earlier - early Issue 2 board, …

    (Posted here and not sales as it's not mine :))

    Came ... 2 board, complete with 5C102E ULA and dead cockroach. Looks from ...
    balford balford February 2014 Hardware
  • DLT trial, not guilty...[url]http://news.sky.com/story/1211154/dave-lee-travis-not-guilty-on-12-charges[/url] find it quite interesting how in this (and the ken barlow coro…

    ... /story/1211154/dave-lee-travis-not-guilty-on-12-charges[/url ... lying. if these guys are not guilty then the surely the ... that if/when they're not guilty then their anonymity will ...
    def chris def chris February 2014 Chit chat
  • 48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …

    I've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working 48k pluses now. :)

    Anyone else come across this?
    owdeuk owdeuk March 2014 Hardware
  • New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …

    ... make sure I got the ULA timing 100% right. We know ... reliable information about when the ULA actually fetches the screen bytes ...
    Patrik Rak Patrik Rak March 2014 Emulators
  • ULA pinsHi I am trying to figure out where on the ULA , among other things, the VYU pins are. I have been reading schematics , but I am really lost when I …

    ... figure out where on the ULA , among other things, the VYU ... good description of how the ULA reads from video ram from ...
    micken micken March 2014 Hardware
  • so time to leave Windows XP or notSo, I finally decided to buy a SSD and I plan to install it inside my laptop. It is an old laptop, Asus X50N, from 2007, with Nforce 610m, Athlon X2,…

    ... SSD and Windows installer does not crash.

    I am ... of XP, because XP was not designed specifically for SSD. Well ... here and there... It is not guaranteed that the old hardware ...
    maiki maiki April 2014 Chit chat
  • Which ULA to fit in which issue SpectrumI spent a little while studying the resistor changes on page 30 of the ZX Spectrum 48K service manual. They all concern aspects of the video circuit …

    ... problems to have the correct ULA for that board.

    ULA. 220R for 5C112E, 1K for ... 6C001E. The older ULA seems to be designed for ...
    rga24 rga24 April 2014 Hardware
  • Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…

    ... Timex-multicolour functions from the ULA+ specification[/B].

    ... not readable).

    It would probably be best if the ULA ... but again, not essential as it deviates from what ULA+ will do ... much support. And yet ULA+ seems to be something ...
    joefish joefish April 2014 Hardware
  • Wanted Spectrum ULAI'm looking for a working replacement ULA for my Issue 3B Spectrum. Revision 6C001E-6 or 6C001E-7. Thanks!

    I'm looking for a working replacement ULA for my Issue 3B Spectrum. Revision 6C001E-6 or 6C001E-7.

    Thanks!
    protek protek April 2014 Wanted
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... wrong power supply as the ULA had a bit missing and ... Sinclair copyright screen but keys not working and no click as ...
    Brian Brian April 2014 Hardware
  • ULA 6C001E-7After doing an audit of my Spectrum PCBs, I find I have one too many 6000 series ULAs and one too few 5000 series ULAs. Would anyone like a 6C001E-7 …

    ... anyone like a 6C001E-7 ULA in exchange for a 5000 ... series ULA, either 5C112E, 5C112E-2 or ...
    rga24 rga24 April 2014 Sales
  • Wanted: ULA 5C112E, 5C112E-2 or 5C112E-3After doing an audit of my Spectrum PCBs, I find I have one too many 6000 series ULAs and one too few 5000 series ULAs. Does anyone have a 5000 serie…

    ... anyone have a 5000 series ULA, either 5C112E, 5C112E-2 or ...
    rga24 rga24 April 2014 Wanted
  • 48k no beeper sound (again!)Got three 48k+ here, all of which have the same exact problem, no sound out the beeper, same problem as detailed [URL="http://www.worldofspectrum.org…

    ... "]here[/URL], not however the same solution, replaced ULA's to no ... avail and tried the original ULA's in a known worker ...
    Macc Macc April 2014 Hardware
  • Yellow issue 4A keyboard madnessNote sure if this is a similar problem to the one CornishManicMiner has, but one of my yellow issue 4A boards is driving me crazy. I had it in variou…

    ... at all. It?s definitely not the membrane (brand new ones ... the Saga). I replaced the ULA and all was working when ...
    schombi schombi May 2014 Hardware
  • 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 …

    ... was brainstorming about..
    Why not using a FPGA/microcontroller with ... /> No more need for a ULA ;)
    bverstee bverstee May 2014 Hardware
  • 48K: Half of copyright message in the middle of the screen?!Issue two. Has 74LS08 over the Z80, but the ULA is 5C112E-3 (I think this should be a 5C102E??? - I have one, but I'm not sure if it is working, at l…

    ... over the Z80, but the ULA is 5C112E-3 (I think ... one, but I'm not sure if it is working ... , at least, it does not solve my problem).

    not possible without (a) working ULA, CPU, ROM ... added 74LS08 go to the ULA, but are loose. They ...
    georgedb georgedb May 2014 Hardware
  • Batman Caped Crusader - Crash mini-episode not workingThe TZX file of the Batman Caped Crusader mini-episode given with Crash issue 60 ([URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0013514"]her…

    ... ?id=0013514"]here[/URL]) does not work. The program crashes (no ... a door key which appears not to be useful to open ...
    Alessandro Grussu Alessandro Grussu May 2014 Games
  • 48k Spectrum ULA issue?Hi All, Have a couple of Spectrums Plus' with their orignal ULAs showing the failure as in screen 2 on the left. [URL="http://hardware.speccy.org/i…

    ... confirm this is probably the ULA? I get the same error ... in other Spectrums using the ULA's so I'm virtually ...
    owdeuk owdeuk May 2014 Hardware
  • Xark does not loadXark does not load on many emulators (e.g. Klive, Fuse, FBZX Wii) both with speed load routine and normal mode. [url]http://www.worldofspectrum.org/…

    Xark does not load on many emulators (e. ... emulators load and others do not?
    Oibaf Oibaf May 2014 Emulators
  • New version Emulator ZEsarUX-1.0Hi I have uploaded a new version of my Spectrum/ZX80/ZX81 emulator. This is a major stable version, with real timing for all the models and with hi-…

    ... border, colour ula delay, interrupt starts at video display (not at the ... option to view CPU & ULA registers
    Added option to ...
    chernandezba chernandezba May 2014 Emulators
  • Spectrum items for saleI have many Spectrum items like Spectrum, Spectrum +, power adapters, Centronics Interface, Kempston Interface, Light Pen Interface(these are built b…

    ... tapes(do not know if they will still work), some ULA's ... long time ago. I do not know what is working and ... what is not. If any Spectrum lover is ...
    techiecal techiecal May 2014 Sales
  • Spectrum+ keyboard issueHi I have a spectrum+ (issue 4s board) where the 1-5 keys do not work. I have replaced the membrane and checked for continuity. I have also tested …

    ... the 1-5 keys do not work.

    I have ... /> I have also swapped the ULA for a known woking one ...
    acsi acsi June 2014 Hardware
  • Narc inlay does not showThe inlay of this Ocean game does not show up properly in its entry: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003360[/url]

    The inlay of this Ocean game does not show up properly in its entry:

    [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003360[/url]
    Ivanzx Ivanzx June 2014 Infoseek database
  • cause of 1 tstate differencethe sinclair faq, located at: [url]http://www.worldofspectrum.org/faq/reference/48kreference.htm[/url] says: "NB: Investigations in May 2004 have rev…

    ... with the same model of ULA. Some machines use the timings ... this is not currently understood."

    After digging ULA for 10 ...
    Arda Arda June 2014 Hardware
  • Games you'd like to remake...but then - not really...As a coder - be that for the Spectrum, PC/OSX or other platforms - I often get ideas about what to work on, for some reason or another. One title th…

    ... too difficult to play. And not only that - it's [I ... any of you - programmers or not - have similar [I]titles that ... seen remade...but then again - not really[/I]?
    Sokurah Sokurah June 2014 Development
  • New Spectrum User - Inveterate UpgraderI've been asking a few questions about my Speccy, which is the first I've owned despite my advancingh years. I was a C64 kid, but please don't hold …

    ... tried to pry it off, not realising it was attached via ... . I've also got a ULA heatsink on the way, and ... .

    The buzzer seems not to be responding to the ...
    Wiffleplop Wiffleplop July 2014 Hardware
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HitBox

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ula 7.3K 13K
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