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  • iXpectum 1.2 HD (iPad enabled) is out!iXpectrum now supports iPad on jailbroken devices ;) Thanks to Ryosaebaa for his support... You can download by now at: [url]http://code.google.co…

    ... emulation.
    - Only read AY registers from port 0xbffd if we're ... ), when reading from port 0x7ffd the value read is written back to ... port 0x7ffd.
    )

    Seleuco Seleuco July 2010 Emulators
  • ULA BookI've just had an email stating that my ULA book is "in the post" - yay! Well done Mr Smith for all the hard work on this.

    I've just had an email stating that my ULA book is "in the post" - yay! Well done Mr Smith for all the hard work on this.
    MrCheese MrCheese August 2010 Hardware
  • 48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…

    ... with these machines is the ULA chip, the only custom chip ... , the 9000 allows you to read data from an address range ... my head, with a working ULA (subsequently tested on another speccy ...
    Womble Womble August 2010 Hardware
  • Basic hardware developmentRecently I looked inside a SNES controller and it has two little IC's that take one bit of input from each of eight lines and outputs them on a line.…

    ... so when the CPU has read in 16 bits it knows ... switches that are read in turn over a COM port. But the ... provided on the SNES controller port, but not on the standard ... COM port...

    So would I ...
    wilsonsamm wilsonsamm August 2010 Chit chat
  • Printer to ZX SpectrumHi! I wonder is it possible to attach any other printer to rubber key ZX Spectrum than those thermal paper ones (i own one). I mean any dot matrix p…

    ... got it yet) and i read from it's manual (found ... Spectrum) that it has centronics port. Is it possible to connect ...
    lillaolle64 lillaolle64 September 2010 Hardware
  • Reading EAR input under emulation...Can either Spin or SpecEmu emulate being able to read audio from the EAR socket of the Spectrum? I'd like to be able to hook some audio to the micro…

    ... SpecEmu emulate being able to read audio from the EAR socket ... laptop, and have the emulator read it as if it was ... being read from the EAR socket on the emulated machine, using port ...
    bobs bobs September 2010 Emulators
  • emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…

    ... only 81 had pretty convincing ula interference but now dot ... crawl and ula snow - though these are ... file support and cant even read a real hdf aotm ... please help
    the ula+ is only for the harlequin ... or with the spectrum ula a whole third of ...
    Roger Jowett Roger Jowett September 2010 Emulators
  • zx spectrum ULAis the ULA in the 16K the same as in the 48K could you take the 16K ULA and place it in a 48K I ask this because i have a speccy thats dogy with th…

    is the ULA in the 16K the same as in the 48K

    could you take the 16K ULA and place it in a 48K

    I ask this because i have a speccy thats dogy with the graphics and my 16K has keyboard issues

    thanks
    Robin Robin October 2010 Hardware
  • ZX spectrum 48K ULAhi everyone I WANT a 48K working ULA. My one needs replacing.. Thanks

    hi everyone

    I WANT a 48K working ULA. My one needs replacing..
    Thanks
    Robin Robin October 2010 Wanted
  • Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…

    If you have read some of my recent posts ... +12V

    PC COM port (9 pin D, male):

    Read data/write register port 65533
    Write data ... port 49149

    Register ...
    ASM ASM October 2010 Hardware
  • ULA Lecture TourSince the VCF-GB 2010, a few people have asked if I'd be doing any more talks about the ULA. Well I've been thinking about this, and thought I could…

    ... any more talks about the ULA.

    Well I've ...
    csmith csmith October 2010 Sinclair Miscellaneous
  • PoC for a ULA video generator described using Handel-C and a Basys FPGA board.Recently, I've taken a course about hardware design for video processing using FPGA's. The HDL used in the course was Handel-C, a C look alike langua…

    ... write a description of the ULA behaviour when generating video (not ... of 14MHz of the original ULA) .

    The result is ... : one of them is the ULA video generation FSM, which in ...
    mcleod_ideafix mcleod_ideafix November 2010 Hardware
  • Which ULA for which issue?Which ULA is for which issue? Is there a standard? Micky

    Which ULA is for which issue? Is there a standard?


    Micky
    -Micky -Micky November 2010 Hardware
  • +3 ULA question.I have a +3 and a DivIDE+ unit. Another user has suggested that the reason the DivIDE+ doesn't work on the +3 is that the ULA may be dud. I have trie…

    ... the +3 is that the ULA may be dud. I have ... can get a replcaement +3 ULA from? I have been told ... a +3, what about 128K ULA or +2 ...
    Alien 8 Alien 8 November 2010 Hardware
  • Why doesn't my loop work?Can anyone help me understand why my loop doesn't work? Is it to do with how DEC HL affects the flags? [code] ; Read 32k bytes from port 191 as fa…

    ... />
    [code]
    ; Read 32k bytes from port 191 as fast as ...

    LD BC,191 ; Port to IN from
    LD ... ,32767 ; Number of bytes to read
    LD DE,32768 ; Destination ...
    trellis trellis December 2010 Development
  • Question about ZX81 componentAfter I cleaned and replaced some components (7805, two electrolytic caps) with fresh ones, and replaced the RF board with a composite one, on an iss…

    ... is right next to the ULA the screen was coming back ... one :(


    I read somewhere that it is a ...
    gtsamour gtsamour December 2010 Hardware
  • 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 ... it worse was I had read earlier that character break ... on screen is nearly always ULA related. Anyway being into ... d read the reason my speccy had died was the ULA/ ... br />
    If you read all this sorry to have ...
    hedge hedge January 2011 Hardware
  • How the spectrum generates the video from ramHi everyon, I know that most people here allready know this but i think i found out how the spectrum acctually dispalys stuff and why the LD x, (HL)…

    ... chip the PIC cant also read the lower addresses at the ... order ram (> 16K) the ULA (or PIC in my case ... the display can not be read is when writing to the ...
    Robin Robin January 2011 Hardware
  • Chase HQ Pseudo 3d road algorithm ?Hello, I'm new to that forum and to the spectrum. I'm developping games for Colecovision (may be you hear about : Ghost'n Zombie and Smurf challe…

    ... similar with colecovision. So , i read lot of book about the ... have discovered the Chase HQ port , and i have been really ... in Chase HQ speccy's port.

    So i would ...
    youki youki February 2011 Development
  • Wanted: Rubber Key 48K M/board or ULAI have a spectrum that isn't too happy. It seems to be a problem with the ULA... So, has anyone got a spare working motherboard that'll fit in my ca…

    ... be a problem with the ULA...
    So, has anyone got ... in my case, or a ULA for a 3b revision? I ... .

    The current ULA has Ferranti ULA 6C001E-6 / 8351 stamped ...
    Jason9 Jason9 March 2011 Wanted
  • What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…

    ... use by +3DOS while doing read operations from the disk drive ... :
    I'm trying to port a 128K Spectrum game (Where ...
    mcleod_ideafix mcleod_ideafix March 2011 Development
  • Modification of +2: TAPE IN port?Hi. My friend got a +2. He is a hardware guy, so he would like to add a regular EAR port to it. However he prefers to have some schematix first. …

    Hi.

    My friend got a +2. He is a hardware guy, so he would like to add a regular EAR port to it.
    However he prefers to have some schematix first.

    Can You help?

    Thanx in advance,
    Y
    Yerzmyey Yerzmyey March 2011 Hardware
  • Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …

    ... or 1MB ram
    + paging port #7FFD at 90% compatible with ... external ram pages are fast (ULA no slow down CPU and ... clones)[/B]

    - paging port #7FFD can't select second ...
    velesoft velesoft March 2011 Hardware
  • Twin port joystick interfaceDid anyone ever release a twin port joystick interface that (for example) had one port for "Sinclair" and the other for "Kempston"? I'm looking for …

    Did anyone ever release a twin port joystick interface that (for example) had one port for "Sinclair" and the other for "Kempston"?

    I'm looking for a way my wife and I can play Gauntlet (and possibly other games) using 2 joysticks, on a 48k.
    Mousey Mousey April 2011 Hardware
  • Upgrading the Humble Spectrum 128 +2 (Grey)Hello there my fellow WoS'ers I am at a subtle in-pass in my wants for one of my +2 motherboards. I received this mobo, DOA in a job lot from fleab…

    ... not difficult since the RS232 port can use a MAX232 IC ... lovely to this I have read up on the "Not the ...
    Zetr0 Zetr0 May 2011 Hardware
  • Spectrum+ fault - lines on boot screen, freezesThe ZX Spectrum+ I bought in the car boot has a fault. When you boot it, it's displaying the Copyright screen, but each character position has a vert…

    ... all.

    I've read through the service manual, replaced ... I don't think the ULA had any reason to be ... it just be that the ULA isn't suitable for it ...
    Muzer Muzer June 2011 Hardware
  • Port 254 emulation problem. Help, please ...Sorry, but my english is not pepfect. I have a problem and need in professional help. I have developed hard-soft emulator of ZX Spectrum 48. The link…

    ... problem is in emulation of port 254 and kommands IN. Is ... explain me in details emulation port 254 in IN commands?
    Vasil Vasil June 2011 Emulators
  • up-to-date info on tape->PC conversions?I've been trying to find up-to-date information on tape->PC conversions and haven't had any luck so far. * I searched the Emulators forum for half a…

    ... problem.
    * So then I read the [url=http://www.worldofspectrum ... tapes from the Line-In port, but I tried that by ... use as although it can read the tape input OK it ...
    Battle Bunny Battle Bunny July 2011 Emulators
  • Something I once read, how an ancient voice recording was possibleSome years ago, I read somewhere (I think it was in a book of essays by Arthur C. Clarke, or Carl Sagan) that making a (admittedly bad and very primi…

    Some years ago, I read somewhere (I think it was ... essays, of which I've read a fair few over the ...
    ewgf ewgf July 2011 Chit chat
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
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    rich_chandler on April 21
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    mel the bell on April 21
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  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
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