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Search Again :: Adv Search 1000 results in 0.046s
<1234567…34>
  • VERY annoying (DVD drive not detected)My 'puter seems to have forgotten that I have a dvd/cd drive. It has done this before and I thought it may be some virus or other and I took it in…

    ... 'm relatively sure I have not downloaded owt dodgy, but you ...
    urbanupstart urbanupstart July 2009 Chit chat
  • Not worth reading really - unless you have some spare time(Mods if you want to move it please do it does have a sort of hardware theme and a couple of recommendations at the end :) About two years ago now I…

    ... proud owner of a MicroDrive ULA - not many can say that :)
    Not to metion PaulF re-writing ... on screen is nearly always ULA related. Anyway being into IT ... row "B" to "BreakSpace" was not working... Unsscrewed the IF1, unscrewed ...
    hedge hedge January 2011 Hardware
  • zx spectrum display corruption .. with lower ram module installed[img]https://photos.app.goo.gl/Gu6rjC5v21sZxwTX9[/img] [img]https://photos.app.goo.gl/FznVw8SkbbhWn5mh7[/img] another specie question : i have …

    ... as good and upper ram not detected although it is fitted... so ... removed the rom, tried different ULA,recap,composite mod, voltages are ... keyboard row 3 was not working- D3 was not making its way ...
    mark8bit mark8bit January 2021 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... would be possible or not to retrieve the complete ... bus contents using the ULA DRAM address pins and ... the address bus contents are not available. The only available ... the ULA, so a request to an odd port is not detected. ... port FFh won't be detected (A0=1, A7=1). ...
    mcleod_ideafix mcleod_ideafix March 2013 Hardware
  • Help and Advice with DivIDE PlusHi Guys, Really struggling to get any reliable actiivty with my DivIDE Plus and am looking for some pointers. I am trying to get it to work with on…

    ... boot sequence up (Unit 0: Not detected; Unit 1: Disabled) but this ... because the CF card is not inserted. Inserting the CF card ...
    BloodBaz BloodBaz September 2010 Hardware
  • PC Graphics card incompatibility issueHey all, ive had a mates PC in for repair, well, upgrade. Against my judgement he's gone and bought a PCI card (Geforce 8400GS 512mb), even though th…

    ... work, posted at startup but not detected in Windows at all. I ... powering the card up, still not detected. Tried disabling on board graphics ... graphics card is but is not seen in windows
    3 ... It does actually work, just not in the acer machine, as ...
    Macc Macc October 2010 Chit chat
  • Error in the Schematics.Hi, i have been looking at a Speccy 48 PCB, and have figured out that all the Speccy schematics in the archive up to and including Rev 4a, contain an…

    ... to pin 37 on the ULA, not pin 27 as shown in ...
    spodula spodula January 2011 Hardware
  • +3e DOS Error : Out of XDPBsHello there my fellow forum chummies, I have been having fun with multiple partitions under the +3e DOS, however I have a bit of a problem - I have…

    ...

    IDE unit 1 (not detected)
    [/code]

    Now ...
    Zetr0 Zetr0 August 2011 Hardware
  • PENGY - with fixed kempston controllMy fixed version of game PENGY. Add autotest of joystick connection. Before first start game test if joystick is connect (D0-D4 of port 1F must be in…

    ... in log.0). If joystick not detected then my code disable joystick ... in game controll if is detected)
    [url]http://velesoft.speccy ...
    velesoft velesoft October 2011 Games
  • Apple's "non-removable" batteriesHas anybody tried to remove and re-insert or exchange batteries on Macbook Pro laptops commonly known as the unibody type? I find tutorials showing…

    ... having issues with power, Airport not detected, battery issues, touchpad issues, sensor ...
    zxbruno zxbruno October 2012 Chit chat
  • Bloody CF cards..As many know, I manufacture lot's of DivIDE interfaces. I get my Compact Flash cards from different places in Europe and China. Sometimes some cards…

    ... /> Sometimes some cards do not work, even not with the extra power ... adapter.
    Some cards are not detected by the DivIDE, and some ... says.
    But they are not.

    Until recently, ... probably because those cards do not have an IDE interface built ...
    bverstee bverstee August 2013 Hardware
  • Vega queryNewbie alert - so apols in advance. Got a Vega at Christmas and it's not working with some of the games I've downloaded (esp Booty - aaaaaargh...!!).…

    ... at Christmas and it's not working with some of the ... on and sd card / update not detected.
    Can anyone help ??? any ...
    Andy Whitton Andy Whitton September 2016 Vega
  • Crasched Spectrum+ 128, HELP!Hi! I recantly bought a Sinclair Spectrum+ 128 on a seconhand store. It shows random colour squares spread over the screen, mostly the upper part a…

    Making your own ULA?

    Not without a lot of technical knowledge - the ULA is hardly a simple device with features in common with more common IC's. Would not exactly be simple.
    cyborg cyborg September 2003 Sinclair Miscellaneous
  • ADCI'm a little confused about how the Z80 manages the ADC instruction. I'm assuming two ADD instructions are performed (am I wrong?!) I can think of 3 …

    ... meant the half carry was not detected. Flag H should be:
    Unique Unique February 2005 Development
  • Ping Pong tzxI can't get the tzx file for Ping Pong by Imagine to play on Spectaculator or TAPER properly. Strange non-loading sounds, like beeps, start occurring…

    I can't remember the specifics of the loader at the moment but it does look for some of those beeps before the main turboloader starts up and resets if they're not detected.
    Woody Woody December 2005 Games
  • Ping Pong tzxI can't get the tzx file for Ping Pong by Imagine to play on Spectaculator or TAPER properly. Strange non-loading sounds, like beeps, start occurring…

    ... and resets if they're not detected.

    [/quote]
    This ... to find them (they're not present in the TZX)
    JonNorth JonNorth December 2005 Games
  • "TASK MANAGER HAS BEEN DISABLED..." (Windows XP)I'm running Windows XP, and now, whenever I press [CTRL] + [ALT] + [DEL] to bring up the task manager, I instead get the error message: "Task manag…

    It may be worth running a Rootkit [url=http://www.sysinternals.com/Utilities/RootkitRevealer.html]detector program[/url]. Rootkits are not detected by Spyware or Virus checkers.
    Steve(spt) Steve(spt) September 2006 Chit chat
  • "TASK MANAGER HAS BEEN DISABLED..." (Windows XP)I'm running Windows XP, and now, whenever I press [CTRL] + [ALT] + [DEL] to bring up the task manager, I instead get the error message: "Task manag…

    ... "]detector program[/URL]. Rootkits are not detected by Spyware or Virus checkers ...
    ewgf ewgf September 2006 Chit chat
  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    ... it when both, DMA and ULA (not to mention the CPU) want ... /> Or this is an interface not suitable for 48Ks?

    Marcelo Marcelo March 2007 Hardware
  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    ... it when both, DMA and ULA (not to mention the CPU) want ... ]

    Contended memory is not only by 48K machines.
    ULA acesses lower 16K ?
    piters piters March 2007 Hardware
  • Poorly Spectrum + Fault diagnosis help needed!Hi, I've got a Spectrum+. Sometime in the past I broke it and sent it off to be fixed. It came back working good as new, but with an issue 2 board i…

    ... likely that the Z80 and ULA are working (especially if you ... by then, and the ULA must be working at least ... sign that the CPU's not doing anything. This could ... the CPU itself or the ULA not gating the clock into the ... sign that the ROM is not working. If the ROM ...
    Winston Winston July 2007 Hardware
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... is measuring time from when ULA pulled INTREQ low (IM2 handler ... ). He counts everything relative to ULA, same as Chris does, and ... things happen with respect to ULA, not Z80.

    You and ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Ports AccelerationOn ZX48 or 128/+2(grey) is contended and uncontended ports. For example: if you will read 512 bytes sector from IDE device to ZX ram via INI or INIR,…

    ... , memory 49152-65535 is contended. ULA use for ports same slow ... , this port will contended too. (ULA not know difference between ports and ...
    velesoft velesoft October 2007 Hardware
  • Ports AccelerationOn ZX48 or 128/+2(grey) is contended and uncontended ports. For example: if you will read 512 bytes sector from IDE device to ZX ram via INI or INIR,…

    [QUOTE=velesoft;223781]ULA use for ports same slow- ... , this port will contended too. (ULA not know difference between ports and ... )[/QUOTE]

    This is not entirely correct - for example all ... course, the IDE port is not even, so what you wrote ...
    Patrik Rak Patrik Rak October 2007 Hardware
  • Trying to emulate the DivIDE on SpinI have this .iso image that's supposed to be used on a cf card: [url]ftp://ftp.untergrund.net/users/gasman/zx/divip_let_forever_be.zip[/url] Since …

    My +divIDE was on order with RWAP and is soon to dispatch.

    I am trying to use DeMfir on Spin but I cannot get the firmware to identify the HDF file I have downloaded from this thread (the "fixed" one). A screenshot is shown [url=http://www. ...
    BloodBaz BloodBaz November 2007 Emulators
  • beating exploding fist's aihave you known, there's a very simple strategy allowing you to get as far as you want in fist's single player mode? :-)

    Obviously sarcasm was not detected in my post although it was present :p

    ....maybe I should have labelled it :D
    dm_boozefreek dm_boozefreek January 2008 Games
  • beating exploding fist's aihave you known, there's a very simple strategy allowing you to get as far as you want in fist's single player mode? :-)

    [quote=dm_boozefreek;237331]Obviously sarcasm was not detected in my post although it was present :p

    ....maybe I should have labelled it :D[/quote]

    That would be good, cos I'm a bit thick, lol
    polomint polomint January 2008 Games
  • Detecting a Kempton joystick...I've been playing with the idea in the games I'm currently developing so that once the Kempston joystick has been selected you can hold FIRE down to …

    ... is short enough for the ULA
    ; not to start fetching the ...
    LD (KEMPSTON),A ; // 0 == not present, non-zero present
    Jon Needle Jon Needle January 2008 Development
  • Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…

    ... [/url] ) that the ULA does not generate the black reference level ... this problem ( because the ULA clone gave the same black ... that some model of zx81 ULA not generate good video signal. In ... good solution for the original ULA.

    Bye
    ...
    Jose_Leandro Jose_Leandro January 2009 Hardware
  • Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …

    I'd speculate that the ULA in that machine is possibly ... CPU accesses it via the ULA, not directly) and it has a ...
    Winston Winston October 2009 Hardware
<1234567…34>

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