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  • SpecIde updated!Hi, all! In these past months I've been brushing up a bit my emulator, SpecIde, a.k.a. the least efficient emulator in the world. At this momen…

    ... contended memory, floating bus port...)
    - Kempston and Sinclair joystick emulation, using ...
    TheMartian TheMartian May 2019 Emulators
  • Connectors for new Spectrum expansion port accessories?Hi, for some time I am pondering the feasibility of creating new thingummies (not really sure what the general name is) for plugging into the Spec…

    ... into the Spectrum's expansion port. Not that I have the ...
    Chip Chip September 2019 Hardware
  • Awesome port of Astro Blaster releasedYet another of my arcade faves gets a tremendous 21st-Century port on the Speccy. https://planetasinclair.blogspot.com/2019/10/astro-blaster.html …

    Yet another of my arcade faves gets a tremendous 21st-Century port on the Speccy.

    https://planetasinclair.blogspot.com/2019/10/astro-blaster.html
    Rev_Stuart_Campbell Rev_Stuart_Campbell October 2019 Games
  • ZEsarUX Beta 8.1Hi! I have uploaded a new ZEsarUX 8.1 BETA version. You can download compiled versions for Windows, Mac, and the source code from: https://gith…

    ... joystick
    -write-port: write value to a port

    Added ... is not enabled
    Fixed kempston mouse emulation on Next machine ...
    chernandezba chernandezba November 2019 Emulators
  • What are the "lost" Ultimate arcade games?I've always been really curious to know what Ultimate did before they were Ultimate, and I've been having a little dig around. We know for sure t…

    ... name by then.

    Check Man (1982), then, seems like ... my call for a Speccy port based on my own mockup ... /> - Dingo
    - Blue Print
    - Check Man
    - Wizz Quiz
    Rev_Stuart_Campbell Rev_Stuart_Campbell November 2019 Games
  • ZEsarUX 8.1 stableHi! I've uploaded a new ZEsarUX 8.1 stable version. Go to the github released webpage to download it: https://github.com/chernandezba/zesaru…

    ... joystick
    -write-port: write value to a port

    Improved ... is not enabled
    Fixed kempston mouse emulation on Next machine ...
    chernandezba chernandezba February 2020 Emulators
  • GZX 2020.1 ReleasedHi, I just released [url="https://github.com/jxsvoboda/gzx/releases/download/v2020.1/gzx-2020.1.zip"]GZX 2020.1[/url]. [youtube]3AOQETbfrPA[/yo…

    ... AY-3-8192, 128K MIDI port, field mode, Z80/SNA, TAP ... :[/b]
    [list]
    [*]Added Kempston Joystick emulation
    [*]Added ULAplus ... page switching via non-standard port numers (fixes The Cube / TGM ...
    Chip Chip March 2020 Emulators
  • +3 joystick port - replacementOne of the joystick ports on my +3 doesn't always recognise my joystick movements. It's probably a loose connection from either a loose connection (r…

    ... ?) or I need a new port. What's the best way ... to get a new port? It's a 9 pin ...
    schneil schneil July 2020 Hardware
  • shorted MIC output? ToastrackI have this toastrack with no sound output on the MIC. EAR is fine and I can load games perfectly fine. Also I can output sound with no problem on t…

    ... no problem on the EAR port.

    I soldered new ... />
    Any ideas what to check?

    [img]https://i ...
    gleegum gleegum October 2020 Hardware
  • Microdigital TK95 / TK90X - my experiencesAs asked for by Renegade [url="https://worldofspectrum.org/forums/discussion/58189"]here[/url] I'll do a short writeup of my experiences with my TK90…

    ... Portuguese
    The built in kempston interface seems to occasionally twitch ... I didn't bother to check into it yet. Next will ...
    Shockwav3 Shockwav3 February 2021 Hardware
  • Keyboard Encoding. Would like to gather thoughts on it.Hi all, I've almost finished the first part of my open-spectrum design, and wanted to bounce one of the ideas I'd incorporated off people prior to…

    ... Key" check, I was thinking to make a 10 pin port from ...
    cj7hawk cj7hawk February 2021 Hardware
  • Wanted: Game testers for Spectrum to Microsoft Excel portSo there I was one day at work, filling in spreadsheets in Microsoft Excel as usual when I idly thought, "Hey, if I made the cells small enough, they…

    ... game programming platform so the port is quite, er, 'fragile'. I ...
    LevelUp LevelUp March 2022 Games
  • is a arduino uno / nano fast enough to talk to a specie ?my current project is to load games onto the specie via SD card / Arduino uno / nano although i suspect that the micro controller will not be able to…

    ... .. but i calculated that a PORT write would take 1.5 ... bytes to the specie using port 31 (kempston) . the best i have ...
    mark8bit mark8bit April 2022 Hardware
  • SSADB portI have done port of a small text adventure called "Escape from SSADB" from QBASIC to ZX Spectrum BASIC. It was improved, fixed and corrected also. N…

    I have done port of a small text adventure ... will like it, I'll port more text adventures.
    TheShich TheShich October 2022 Sinclair Basic
  • Original rubber key 48k'sThis question is to some point academic; But i seem to remeber the original 48k Rubber Keys Speccy came in versions 1,2 & 3! (way back when, occasi…

    ... manual. The keyboard input port also reads in a ... Games and other software which check the whole byte, and ... is strongly advised to check that any new purchase"... ... is nearer the expansion port and appears as a ... through the rear expansion port when you turn the ...
    Mike Jeanes Mike Jeanes July 2001 Sinclair Miscellaneous
  • WANTED: tape replacement for +2?Any tape replacement possible for a +2? My +2 works wonderfully but the incorporated datacorder is simply worn out and won't load ANYTHING. Dirty sig…

    ... read by an IN from port FE. The difference between Issue ... of high output level on port 254:

    ORG 50000 ... duration of high level on port 254. The explanation for this ... keyboard and a joystick port (e.g. Kempston), the joystick takes priority ...
    Dr BEEP Dr BEEP November 2001 Sales
  • Chuckie Egg and joypads on the SpectrumAn old favourite of mine is "Chuckie Egg", but it has no joystick option. I've got a dual port DK Troniks interface, the first port takes IN 31(Kemps…

    Ah! After re-reading your post it appears that a Kempston joystick option would just about do you. So, if you want to check it out beforehand, I have a POKEd snapshot that you could try in an emulator first.
    Ed Ed March 2002 Games
  • Chuckie Egg and joypads on the SpectrumAn old favourite of mine is "Chuckie Egg", but it has no joystick option. I've got a dual port DK Troniks interface, the first port takes IN 31(Kemps…

    ... on the appropriate port (e.g. 31 for Kempston) would read the ... port into the A accumulator ... were all on the same port, meaning that they could do ...
    Ed Ed March 2002 Games
  • what add-ons did.............what add-ons did people buy in the 80's for their zx spectrums? :)

    I started with a Kempston Joystick interface but my brothers ... keys was always my first port of call. Apart from that ...
    BadBeard BadBeard August 2002 Sinclair Miscellaneous
  • What is a Kempston joystick?Just a quick question from an ignorant Commodore user (what, a Commodore user on this sacred ground? Relax, I'm a fan of all 8-bits, including the wo…

    ... had no built-in joystick port, this had to be provided ... did various other people (including Kempston, by far the most popular ...
    Philip Kendall Philip Kendall September 2002 Sinclair Miscellaneous
  • What is a Kempston joystick?Just a quick question from an ignorant Commodore user (what, a Commodore user on this sacred ground? Relax, I'm a fan of all 8-bits, including the wo…

    ... 39 was claimed by the Kempston-interface.

    ... So when you choose to KEMPSTON-interface your Spectrum will ... on every even port.

    The Kempston interface responded to ... traditional.

    Finally, port 1 (0x0001) was definitely not ...
    Philip Kendall Philip Kendall September 2002 Sinclair Miscellaneous
  • what add-ons did.............what add-ons did people buy in the 80's for their zx spectrums? :)

    A Cheetah Kempston interface. Obviously having got it ... and the dual port joystick interface which supports Kempston and 67890 keys ... play normal games and non-kempston classics like Cavern Fighter.
    Spector Spector September 2002 Sinclair Miscellaneous
  • What is a Kempston joystick?Just a quick question from an ignorant Commodore user (what, a Commodore user on this sacred ground? Relax, I'm a fan of all 8-bits, including the wo…

    You were right first time Mat, the Kempston Interface utilised the 5 least significant bits of port 31 - at least that was the address I always used.
    jonathan jonathan October 2002 Sinclair Miscellaneous
  • ?Gooool! The Spectrum in South AmericaA while back I received a private message from someone from Brazil talking about Manic Miner and Jet Set Willy. I was really surprised, as I thought …

    ... (probably because both machines have Kempston joystick ports)
    [/quote]
    port isn't Kempston, it's an interface ...
    Xracer Xracer December 2002 Sinclair Miscellaneous
  • AMX MouseDoes anybody knows how the AMX-mouse works? Is it like a mouse for the Atari ST/Amiga? And if so which IN-port uses the software Which programs can …

    ...
    by reading a specific port. You can see
    more ... code above.

    The Kempston mouse is easier to use ...
    Alcoholics Anonymous Alcoholics Anonymous May 2003 Sinclair Miscellaneous
  • Tales of hate and despair in 8-bitsThis topic seeks to shed some light on one of the most obscure questions a spectrum user can ask. Why do we hate Commodore?

    ... keyboard, integrated joystick controllers, RS232 port, RGB output and the SID ... throwing links at me to check out about the goings-on ...
    Amigo Amigo May 2003 Sinclair Miscellaneous
  • Speccy machine code info where is it?Recently I've been trying to learn Z80 and I've managed to make limited progress (some of my routines even compile now!) but I seem to be having trou…

    ... is attached to i/o port $fe (254). The keys are ... bits during a 16-bit port read identifies which row you ... to read a 16 bit port address is to put it ... joysticks and reading the AMX/Kempston mice. There's a lot ...
    Alcoholics Anonymous Alcoholics Anonymous June 2003 Sinclair Miscellaneous
  • Anyone knows something about Beyond Dreams?Anyone ever heard of Beyond Dreams?

    ... several mice, among them the Kempston mouse and the AMX mouse ... . Nevertheless, you might want to check out Chris Cowley's page ... /[/url]
    that provides a Kempston mouse driver for Basic programs ...
    Alcoholics Anonymous Alcoholics Anonymous July 2003 Announcements
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
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    mel the bell on April 21
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    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
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    AndyC on April 21
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