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  • Challenge Sprint 4x tape recorderHi, I noticed a [url="http://www.worldofspectrum.org/infoseekid.cgi?id=1000051"]Challenge Sprint[/url] on eBay, and checked out the WoS entry for it…

    ... which plugs into the user port, and saves/loads at 4 ... , if anyone's interested to read about how it works. You ...
    mark_k mark_k July 2011 Hardware
  • Chris Smith's ULA talk - live today (Sat Jul 23) 4pm BSTChris Smith's talk on the Spectrum ULA at Euskal Encounter will be broadcast live today on the Basque country public TV's website! Sorry about the sh…

    ... 's talk on the Spectrum ULA at Euskal Encounter will be ... , and the second about the ULA and its reverse engineering.
    Winston Winston July 2011 Announcements
  • Best way to read a key row?Hi All, I must confess that reading the keyboard is the bit I understand least about when coding, I've found some things that work for what I want t…

    ... is the best way to read row?

    The best ...
    R-Tape R-Tape August 2011 Development
  • Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…

    ... /> ;D1 - RESET SDA
    ;D2 - READ
    ;D3 - WRITE
    ;D4 ... /> AGAIN_READ
    IN A, (5) ;READ DATA FROM CONTROLLER
    AND ... C, A ;LOAD C WITH READ BYTE
    DJNZ AGAIN_READ ; ... memory for removable storage)
    Port 6 onwards are unused general ...
    Robin Robin August 2011 Announcements
  • Commodore 64 - First time trying - REVIEW & Pictures!Right, so the 2nd hand shop was selling this Commodore and accessories. So I decided to buy it, as I've never had a Commodore and this is my first ti…

    ... Commodore via its RGB(?) port and there is another ... into the other video port and flicking the switch.< ... plugged in the printer, read a bit of the ... first "open" the printer port and then send information ... to that port where the printer is ...
    Hedegaard Hedegaard August 2011 Sinclair Miscellaneous
  • Emulation of ZX Spectrum 128+2 (grey)Please read this thread: [url]http://www.worldofspectrum.org/forums/showthread.php?t=35523[/url] result: exist 3 (or more) versions of grey ZX Spect…

    Please read this thread:
    [url]http:// ... not crash after reading from port 7FFD.

    Emulator REALSPECTRUM ...
    velesoft velesoft August 2011 Emulators
  • Is this pure bulls@*t or what?Read [URL="http://www.ebay.co.uk/itm/SINCLAIR-ZX-SPECTRUM-PLUS-48K-REFURB-COMPOSITE-OUT-/170691876340?pt=UK_VintageComputing_RL&hash=item27be0755f4#h…

    Read [URL="http://www.ebay.co. ... the composite mod damaging the ULA, cant be true surely
    Macc Macc September 2011 Sinclair Miscellaneous
  • Can anyone help me read a file?I applied for a job. They sent me some attachments, I downloaded them. They don't seem to have file extension names, just appear as Type: FILE. I can…

    ... as Type: FILE. I can read three out of four of ... open office, it won't read it. Word Pad it's ... an xml file? Can't read that online. Asked my dad ... Office, and he can't read it.

    Asked prospective ... again, but still can't read it.

    It should ...
    thx1138 thx1138 October 2011 Chit chat
  • Technical Help Forums - Am I expecting too much?A common problem I observe when on technical forums for programming questions is arrogance. I really hate it when you ask e a simple question, but …

    ... create: JScrollPane, get its view port by calling getViewPort method, add ... question about Java Graphics. Please read it and tell me if ...
    Scottie_uk Scottie_uk November 2011 Chit chat
  • ZX81 Dark screen, could it be the ULA?Trying to get a ZX81 going for a mate of mine, already replaced the membrane (Cheers Rich!) but now its the old "very dark screen" problem, probably …

    ... " problem, probably caused by the ULA and fixable with the composite ... this could be a damaged ULA that his mod may not ...
    Macc Macc November 2011 Chit chat
  • Slightlt OT. - ZX81 ULA Modulescomming soon... ZX81 ULA module. Plugs into original ula socket, provides composite video output (requires vwry small mod to bypass UHF Modulator, b…

    ... .

    Plugs into original ula socket, provides composite video output ... constant 3.25Mhz from the ULA to your sound card (or ...
    andy_rea andy_rea December 2011 Sales
  • Incorrect joystick decoding in Fuse & SpectaculatorAccording to a test that a fellow member ([B]utopian[/B]) at the [url=http://www.speccy.org/foro/viewtopic.php?f=6&t=2475]speccy.org[/url] forum has …

    ... , the joystick won't be read.

    It ... being read" .

    So, in the +2 grey, port $00FE ... A12, should work:
    - Port $10FE : should decode all keys ... and the joystick at port 2, except for keys ... and the joystick at port 1, except for keys ...
    mcleod_ideafix mcleod_ideafix December 2011 Emulators
  • Joystick interface with port through connector?Which joystick interface has a port through connector? Micky

    Which joystick interface has a port through connector?


    Micky
    -Micky -Micky December 2011 Hardware
  • Educational game - Learn to Read with profok - not expecting no great shakes on this but I have this and don't want it and it seems quite rare / obscure ... probably cause no one really wante…

    ... of it.
    PLAY AND READ, the complete reading tutor
    'Learn To Read with Prof' level 1
    retromad retromad January 2012 Sales
  • Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…

    ... lower ram chips... maybe even ULA...

    Of course, when ... them, and confirmed that the ULA from the faulty mbo worked ... hope someone with more experience read thus far (it took me ...
    deckard deckard January 2012 Hardware
  • Can anyone test my Issue 2 ULA?Hi guys, Could anyone with a Issue 2 Speccy try whether my ULA works in theirs? I will obviously cover postage etc. Just want to know whether I have…

    Hi guys,

    Could anyone with a Issue 2 Speccy try whether my ULA works in theirs? I will obviously cover postage etc. Just want to know whether I have a faulty ULA or not before trying to source one from somewhere.
    kamilb1998 kamilb1998 February 2012 Hardware
  • SpiffyBecause there aren't enough emulators already... [url=https://github.com/ec429/spiffy]Spiffy[/url] is my 48k Spectrum emulator, for Linux. Right no…

    ... ]

    Right now the ULA timings aren't perfect; to ... bus resolution to ?T (and read csmith's book).
    Also ...
    AY Chip AY Chip February 2012 Emulators
  • The Sinclair ZX Microdrive Resurrection Project (long)Dear Spectrum fans! [Management summary: Download [url]http://www.bartheld.net/temp/mdv2img.zip[/url] and tell me what you think. All help very much…

    ... 0, 65535 etc. and read back. Excellent. So the ... which spun the tape, read as much sectors as ... 0xA0 with correct header checksum read elsewhere).

    ... the sector I intended to read but some surrogate.
    port plus baud rate (19200 ...
    Volker Volker March 2012 Emulators
  • spectrum 48k line in port not workingI have a second revision spectrum 48k,the line in port doesnt work their is absolutely no noise coming in but the port looks clean and all the solder…

    I have a second revision spectrum 48k,the line in port doesnt work their is absolutely no noise coming in but the port looks clean and all the solder joints look ok.

    Any ideas?
    thepolicenaut thepolicenaut March 2012 Hardware
  • Spectrum 128k +2 (grey) RGB Port IssueI have a Spectrum 128k +2 grey model which when connected to the TV with a RGB scart lead via RGB port displays the standard menu screen but flickeri…

    ... RGB scart lead via RGB port displays the standard menu screen ... scart lead from the RGB port and wiggle it so it ...
    dmw_ops dmw_ops March 2012 Hardware
  • ULA snowHow is this feature implemented in emulators ? And how exact is the emulation ? I somehow supposed that ULA snow is something that is not very determ…

    How is this feature implemented in emulators ? And how exact is the emulation ?
    I somehow supposed that ULA snow is something that is not very deterministic in nature. But if one can emulate it (perfectly ?) then i was wrong.
    Fikee Fikee March 2012 Emulators
  • BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…

    ... /> I think the emulator only read 16 bits, and not 32 ...
    Z80user Z80user March 2012 Emulators
  • Proper mapping for joysticks in an existing emulatorThis may seem like a strange question, so I'll try to explain it as well as possible. In one of Rare's (Ultimate Play the Games) later games there…

    ... joystick (or whatever is at port 31) but had no actual ... joystick [i]should[/i] be read but isn't.

    port, and what masks would be ...
    Zoinkity Zoinkity March 2012 Emulators
  • Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…

    ... =1 TO 23
    30 READ n: POKE mcAddr+m,n ... the code verified before I port it over to the real ...
    Korinel Korinel April 2012 Emulators
  • I/O port adress map of Spectrum and interfacesI'm looking for an adress map of all the used and unused I/O ports for the ZX-Spectrum. Many years ago I designed an I/O board for the Spectrum that…

    ... combine them.

    The port adresses that my card uses ...
    Knik Knik April 2012 Hardware
  • Spectaculator: Com port bug?I just bought Spectaculator yesterday but probably erred as the one feature it has that no other emulator has is the ability to use COM ports with an…

    ... everything else see my COM port Spectaculator doesn't show me ... X64 Win7, with USB serial port on COM 8)
    Korinel Korinel April 2012 Emulators
  • ZX Spectrum ULA core available at OpenCoresHi! On April, 23th, I opened a new project at the OpenCores website: [url]http://opencores.org/project,zx_ula,Overview[/url] Right now, it has a, h…

    ... , hopefully, complete description of the ULA chip, written in Verilog, and ... on it to act as ULA, with a true Z80 and ... way I hope to tune ULA timmings in case there's ...
    mcleod_ideafix mcleod_ideafix April 2012 Hardware
  • Tape emulation on expansion portHello! Maybe one some one knows how tape emulation is done (in general) from devices connected on the expansion port? Like how divIDE loads tap fil…

    Hello!

    Maybe one some one knows how tape emulation is done (in general) from devices connected on the expansion port?
    Like how divIDE loads tap files using usual load basic command?
    velesoft knows for sure :)
    ArtemKuchin ArtemKuchin May 2012 Hardware
  • For which Spectrum is this ULA?For which Spectrum is this ULA? Ferranti ULA 9RB015E 8428 Micky

    For which Spectrum is this ULA?

    Ferranti
    ULA 9RB015E
    8428


    Micky
    -Micky -Micky May 2012 Hardware
  • Imperica Horizons - The whole weekend :-)So now it's all over, I'll do a quick writeup... It all started for me at 5.20 am. Getting to London from Devil's Island isn't so easy now that Aer …

    ... it, thanks to the Fuse port, and I photographed it for ... his work on the Spectrum ULA, colour timing tricks and the ...
    Winston Winston May 2012 Sinclair Miscellaneous
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    John Elliott on April 21
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