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<1234567…34>
  • Tricks with IN 31It's generally considered unwise to use a Kempston joystick's fire button to start a game, because the floating bus effect can make arbitrary data ap…

    ... make arbitrary data appear on IN 31 from the screen RAM.
    IN 31 while the ULA is still ... (using a short interrupt routine in IM2 to make sure of ... is connected, and I read IN 31, can I be sure that ... that I've just typed in.
    ajmoss ajmoss April 2010 Hardware
  • OUT to file, IN from fileOUT - sentences won't do much on emulators since they mostly communicate with external devices. If there was an emulator that would write the (last) …

    ... and read the (last) IN-ed value, then someone could ... was OUT-ed and in another WINDOW-program you ... 31.IN and the emulator would read the value with LET A=IN 31 ... .

    In this way your ... hardware.

    In my case I could test ...
    Dr BEEP Dr BEEP August 2002 Emulators
  • Match DayFor 10 years, I've firmly believed the Match Day series was thus: 1985 Match Day 1987 Match Day II 1987 International Match Day New evidence from t…

    ... launch in 1985:

    1985 Match Day
    1985 International Match Day ... ever sound during the game in International Match Day (except when the ... International Match Day was indeed published in 1985 (and therefore 2nd in the ...
    mheide mheide October 2008 Games
  • the match - cult softwaretype in search "the match" everything else shows up , but not this [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003075[/url]

    type in search "the match" everything else shows up , but not this

    [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003075[/url]
    fog fog August 2010 Infoseek database
  • TZX in MSXHi: First of all, sorry about that topic. Perhaps this is not the more accurate threat/foro to talk about this. If you think so you can move it to "…

    ... br />
    In MSX the mor extended format to MSX Tapes ... a little debate/discussion in order to use TZX ... this topic here in WOS Forums in order to get ... the Software like MAKETZX in order to can choose ... br />
    Thanks a lot in advance.

    pd. ...
    manolito74 manolito74 February 2013 Development
  • GEDit syntax highlighting for Boriel's ZX BasicHi! I just tailored this syntax highlighting code and would like to share with he community. Suggestions are always welcome, though the file works w…

    ... />
    Put the file either in

    [CODE]
    ~/.local ...
    pkersey pkersey February 2014 Development
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... can be read with IN 61438 and IN 63486, respectively.
    * ... Joystick can be read in port 31: IN 31 which give you a number ... />
    On other machines: search in VARS for start of BASIC ... message printed out is contained in ROM starting at address 5010 ...
    na_th_an na_th_an April 2005 Development
  • Joystick Interfaces on +2AJust found out that my DK'Tronics joystick interface doesn't want to play with my +2A (black). The Kempston port works OK, but not the Sinclair port…

    ... then you could do an "extended" kempston interface that fully decodes ... the address lines. So if IN 31 is A7,A6,A5 set ... ,A6,A4 go low, so IN 47? That would also work ...
    joefish joefish April 2013 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…

    ... questions:

    In the second sketch, I'd ... ? I've always seen IN 31 return 0, not 32, ... ?

    [QUOTE=1024MAK;747241]Yes, use a tri ... (lazy style, one IN 31 and one IN 55), one chip could ... br /> But anyway, I picked IN 55 as an alternative so ...
    joefish joefish January 2014 Hardware
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... going low, an IN 31 (or IN-55 or IN-95) will set ... asking for new features in emulators but the community ... of keys won’t match between the two joysticks.< ... -over would easily avoidable in such cases (and I ... interfaces, this was never in question. I was simply ...
    zub zub June 2015 Emulators
  • 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…

    ... interface, the first port takes IN 31(Kempston) and the second uses ... 9. What is the point in that? Does anyone know how ...
    Spector Spector March 2002 Games
  • 2 questions regarding partial port decoding1) What happens if the Spectrum reads from a port whose number matches the criteria for more than one device ? Does only one of the devices get to r…

    ... a troublesome command would be IN/OUT from port 0000h, as ... the Kempston joystick ? The standard "IN 31", corresponds to a port address ... requirements ?

    Shouldn't IN A,(15h) also access the ...
    GOC GOC August 2004 Development
  • ANN: Tipshop updated Monday, 08 January 2007Monday 08 January 2007 A little belated, but.... HAPPY NEW YEAR! * This is a reasonably small update, but it feels like I've been working on it for…

    ... less characters will result in an exact match search.
    Thanks to ... and associated map links to match changes at WoS.

    * Ladderman (AKA Colin Attle) sent in his maps for Deadly Evil ... Xevious

    * Eq sent in tips for Ball Breaker.
    hackersanon hackersanon January 2007 Announcements
  • More general questionsJust some more things that I wonder when I can't sleep... 1. What's the highest score anyone's ever achived when playing snooker? I mean, yes there…

    ... the highest recorded score in a snooker match?

    2. ... highest score in a football (English, Soccer, not American) match?
    < ... of own goals scored in a football match? Has any player ever ... more than one own goal in a match?

    4. ...
    ewgf ewgf March 2007 Chit chat
  • SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…

    ... breakpoints on memory write etc. in SPIN, here's a ... Kempston joystick interface, accessed via IN 31. The most common way ... reading this in machine code is the "IN A, (31)" instruction but ... /> UNTIL (RPORT & 255) = 31
    [/code]
    ...which masks ...
    Marko Marko November 2007 Development
  • 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 …

    ... been playing with the idea in the games I'm currently ... /> After testing the results of IN 31 when a Kempston joystick isn ...
    bobs bobs January 2008 Development
  • Phipps on Les Adventures label (French)Hi folks, I was wondering whether infoseek entries/aliases should be created for these tapes, we might be able to contact the winner, see if they ca…

    ... (?), but I'm not sure in they were translated to French ... or were in Enfglish ?

    They match up with:
    in infoseek, nor is the compilation ... 'm sure once it arrives in his hands he'll be ...
    Andrew Barker Andrew Barker April 2008 Infoseek database
  • Key redefinition addresses for games made with AGDI am attempting to implement a system to make keys redefinable on the AGD-authored game I am working on. I tried to use [URL="http://www.worldofspect…

    ... memory addresses in lines 20 and 9900 in order to match the memory ... with the new key values in order to change the controls ...
    Alessandro Grussu Alessandro Grussu December 2012 Development
  • DK-Tronics Joystick Interface, notes for databaseOn this page: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=1000120[/url] There is a note marked 'Blurb': "The first port simulates 6,7,8,9 …

    ... keys. The second port simulates IN(31) command" - Kempston.

    And ... left port implements the Kempston ( IN (31) ) protocol. The right port implements ...
    joefish joefish February 2013 Infoseek database
  • Joystick Interfaces on +2AJust found out that my DK'Tronics joystick interface doesn't want to play with my +2A (black). The Kempston port works OK, but not the Sinclair port…

    ... /> I swapped the address lines in the interface to make it ... PCB than the brown one in the other one I opened ... keys, but still registers on IN 31 no problem.

    Anyone ...
    joefish joefish April 2013 Hardware
  • Mojon Twins' Covertape #2Ready for TWELVE new games? [b]Sir Ababol 2 Demo[/b] [img]http://www.mojontwins.com/wp-content/uploads/2013/06/01-sir-ababol-demo-2.png[/img] We ar…

    ...
    After the events told in Cheril the Goddess, Cheril started ... player, was a success. In a decisive match, he fails a penalty ... kick in the last minute ... he delivers to certain department in the University of Miskatonic ( ...
    na_th_an na_th_an June 2013 Brand new software
  • What would you do with four joysticks?Anyone got some inspiring ideas for four-player games, or twin-stick two-player games..? I can think of, for four players: [I]Warlords[/I] (Atari) […

    ... .g. IN 63 instead of IN 31, and IN 0xEFEF instead of IN 0xEFFE.
    joefish joefish October 2013 New game ideas
  • Quick fix for four joysticksHere's a quick modification to add four joysticks to any Speccy. This assumes you already have two Sinclair ports. [URL="http://joefish.co.uk/specc…

    ... , or scratch a break in the circuit track). Then ... now responds to IN 55 instead of IN 31 (or any other ... ]10 PRINT AT 0,0;"IN 31 = ";IN 31;" "
    20 PRINT AT ... 2,0;"IN 55 = ";IN 55;" "
    30 GOTO ... I write software to use IN 55, is that future ...
    joefish joefish October 2013 Hardware
  • Denizen: Rainbow of VengeanceI've just had an idea to design a game based on my novel - "Denizen: Rainbow of Vengeance" - for the ZX Spectrum (128K only). Read on below to find o…

    ... being a 2nd-class citizen in a Neo-Communist regime. He ... /> - The novel in PDF format

    - An extended synopsis with character ... biographies in PDF format (advisable ...
    Swevicus Swevicus October 2013 New game ideas
  • PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…

    ... Spectrum, but with a 1N4148 in between.

    To give ...
    bverstee bverstee January 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…

    ... if people really are interested in either of the following ...
    [B]1. A plug-in graphics card[/B], like [I ... all cards ended up in the same mode with ... interface[/B] that supports IN-31 and IN-55, for adding an ... , is there the demand in the community? I'm ...
    joefish joefish April 2014 Hardware
  • Problem with DivIDEHi There is a problem on ZX-Spectrum +2 (Grey Model) + DivIDE 2k14 here is video with problem [URL="http://www.youtube.com/watch?v=nIQboFo7Epc"]h…

    ... ]10 print at 0,0;in 31,
    20 goto 10[/CODE ...
    ld bc,#001f
    in a,(c)
    ld b ...
    Jerri Jerri May 2014 Hardware
  • SEGA GENESIS joypad from Ebay[IMG]http://velesoft.speccy.cz/zx/joypad/IMGP9641.JPG[/IMG] On Ebay is possible buy very cheap chinesse joypad compatible with Sega Genesis / Sega M…

    ... fix enable only two directions in same time :-)
    [URL ... (with small software driver). In this mode are joypad data ... bytes readable from joypad:
    IN 31 = 0,0,button C,button ... up,down,1,1
    IN 31 = 0,0,button C, ... 1,1,1,1
    IN 31 = 0,0,button C, ...
    velesoft velesoft June 2014 Hardware
  • +2A/Kempston interface incompatibility?Hello forum,<br><br>So, I used to be active here about eighteen months ago.&nbsp; I liked messing about with turboloaders.&nbsp; Then I disappeared b…

    ... -Interface

    Nada.  PRINT IN 31 just returns zero.  (Well, it ...
    stephenw32768 stephenw32768 May 2015 Hardware
  • Odd joystick interface / startup behaviourI was experimenting with setting up a machine to run [i]Bomb Munchies[/i] at the weekend and was surprised by a particular condition that caused my +…

    ... K-55 ones to decode IN-55 (00xx0xxx) and it ... sure only decodes xx0xxxxx for IN-31. On startup, the +2A ... is if there's an IN 0 or something being ... is there anything like that in the startup sequence of ... there anything known about odd IN commands on a +2A ...
    joefish joefish August 2015 Hardware
<1234567…34>

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