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<1…891011121314…34>
  • 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 …

    ... Spectrum was running an infinite loop program (ORG 16384; DI; JP ...
    mcleod_ideafix mcleod_ideafix October 2009 Hardware
  • Alchemist (missing artist, illegible)The loading screen for [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000139"]The Alchemist[/URL] has something resembling a signature right…

    ... 's supposed to be grass/ground.

    P.Tindle? A ...
    ZnorXman ZnorXman October 2009 Infoseek database
  • Implementing goto on error condition...OK, so when I'm reading a file or directory on a network filesystem, when I reach EOF, it's not actually useful at all for ZX BASIC to stop the progr…

    ... have happen is the read loop exit, and then when EOF ...
    Winston Winston October 2009 Development
  • +3 sound fix affects scart schematic ?I wanna do the speccy +3 sound mod as my machines like a pile of cack currently... BUT there are 2 mods.. the "ok" mono one.. and the "you want fries…

    ... left / right audio and the ground.. has anyone done the mod ...
    fog fog October 2009 Hardware
  • Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…

    ... /> PRINCIPALLOOP ;label for the loop in the game that will ... game goes round its principal loop.
    At the ... road' by using a loop to create two vertical stripes ... equivalent of a FOR-NEXT loop, djnz.
    djnz ... will continue from the loop when b=0, we ...
    bigjon bigjon November 2009 Development
  • Creating a Spectrum game that won't load...Dear All, I have recently been using my ZX Spectrum as a reference for the production of a new body of art work and something I keep coming back to …

    ... parts out, creating a continuous loop inside the cassette so that ...
    Rhys Coren Rhys Coren November 2009 Sinclair Miscellaneous
  • POKING graphicsI remember using binary code (in BASIC) to POKE graphics (thanks Input magazine!) Using a FOR..NEXT loop you would POKE each square in the 8X8 charac…

    ... !)
    Using a FOR..NEXT loop you would POKE each square ...
    Retrobrothers Retrobrothers November 2009 Games
  • Composite video and reset buttonOK, I've got some Kempston clone interface here, and I've added a phono socket and a small momentary switch to it (ages ago but forgot about it) . :)…

    ... of the switch to a ground 0v point ?)

    I ...
    spider spider November 2009 Hardware
  • Z80 'EXX' ConfusionI was working on a little Z80 routine last evening, and, having run out of registers, resorted to sticking one of the values into a memory location a…

    ... buffer pointer and as a loop counter (in order to try ... /> LD HL,32

    LOOP: EXX

    LD (HL ... /> CP 0
    JP NZ,LOOP

    EXX
    RET ...
    RoseCotton RoseCotton November 2009 Development
  • Spectrum + keyboard issueMy Spectrum+ seems to have some trouble on Space Key. Sorry for all "seem" in the following text. But it's hard to understand if it's a real steady t…

    ... Break key for stopping the loop. The same is if I ...
    dg67 dg67 December 2009 Hardware
  • Release the joe75 one."Well news has reached us here in Boinko towers that joe75 has been banned from the award wining wos forums. This report has not yet been confirmed a…

    ... we decided to hit the ground running with this joe75 incident ...
    1980-20.. 1980-20.. December 2009 Chit chat
  • Odd keyboard behaviour due to a single bit failure in +3 ROMI've just fixed a spanish +3, which, among normal issues (drive belt missing), presented a very strange one: the keyboard autorrepeated without a del…

    ... port 254 within an endless loop didn't show any signs ...
    mcleod_ideafix mcleod_ideafix December 2009 Hardware
  • What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…

    ... /> call 5633 ; open channel
    loop ld de,string ; address of ... ; print our string
    jp loop ; repeat until screen is full ...
    xyzzy xyzzy December 2009 Development
  • Game & Watch - Fire RC-04The original game. [IMG]http://i432.photobucket.com/albums/qq45/FrankT4/fire.jpg[/IMG] My speccy conversion progress. [IMG]http://i432.photobucket.c…

    ... to set up an animation loop for the bouncing men. And ...
    FrankT FrankT January 2010 New game ideas
  • Building a WoS FAQ - contributions and thoughts please!Hi there, as you may have read in [url=http://www.worldofspectrum.org/forums/showthread.php?t=28168]a nearby thread recently[/url], Martijn has boug…

    ... going to be some common ground if they do that. I ...
    Danforth Danforth January 2010 Sinclair Miscellaneous
  • Bit functions speedI just stared nonplussed at the documentation for the bit functions. Apparently, if you're using the accumulator, using AND and OR is faster than se…

    ... of data, or in a loop, is probably worth setting a ...
    Gedlion Gedlion February 2010 Development
  • Connect +3 to Amstrad CPC6128 + screenHas anybody tried it? I get a scewed picture , steady but seems to be a bit dull in colors. Have done an adaptor to use a female Scart connector and …

    ... /> ................... After 30 mins got it , Ground was not connected :) DOH!!!!
    batsilos batsilos March 2010 Hardware
  • Midi out on a ZX SpectrumYears ago (may be over 15 years...) I soldered a small adapter that lets a keyboard or synthesizer connect to the ZX Spectrum 128K's midi/RS232 port.…

    ... 2), 12V (pin 6) and ground (pin 1) of the RS232 ... connects the Midi Out and Ground of the Rs232/Midi port ...
    bverstee bverstee March 2010 Hardware
  • Real Spectrum screen flicker with SCREEN$I've written a basic loader to simply do a 'load "" screen$' based video from a divide+ however I'm finding the Spectrum can't render a screens and a…

    ... have to work within a loop in basic in order to ...
    brownb2 brownb2 March 2010 Development
  • Static vs stacked local variables in z88dkHello everyone. I'm doing a program for Spectrum 48KB with z88dk v1.8 (XX Mar 2008), and I eventually discovered that if your local variables in fun…

    ... decreasing counter in a 'while' loop, the loop never ends:

    Ricardo Cancho Ricardo Cancho April 2010 Development
  • Double Dragon II - Can Hackers Help Me?As you all know, I'm a bit of a Double Dragon nut and sadly the Speccy conversions of the first two games were a bit pants. [IMG]http://img.photobuc…

    ... they are knocked to the ground. It would play a bit ... if they laid on the ground for a few seconds. Also ... have been knocked to the ground for a second time. It ...
    Swainy Swainy April 2010 Games
  • When this finally happens, it will be fantastic...I had a dream this morning. Nothing new there of course, we all do, and like most dreams I don't remember much about it. But what I clearly remember …

    ... was looking down at the ground in front of me. There ...
    ewgf ewgf April 2010 Chit chat
  • Some TR-DOS technical questionsHi forum, I sincerelly hope this was the right section of yours to ask this kind of stuff in. (else return facepalm;) Anyway, here's a couple of que…

    ... #1f since it will then loop infinitely on reading the #ff ...
    Hikaru Hikaru April 2010 Development
  • Jonathan CreekI meant to post about the Jonathan Creek episode from a few weeks ago, but never got around to it, and since no one else did (as far as I know) then …

    ... bloke coming out of the ground) when it was explained, didn ... the man emerging from the ground, never actually happened at all ...
    ewgf ewgf April 2010 Chit chat
  • Who can fix my Flash programmer code?I have a problem with some code, it doesn't work and I don't have any idea what it's trying to do, or failing to do! The code in question is the fla…

    ... returns to the main program loop, the rom image is loaded ... get back to the main loop (and it's really tedious ...
    guesser guesser May 2010 Development
  • Saved by ninjasWTF story of the day: A german student was attacked by three muggers at night in Sidney. They surrounded him and started to kick him as he lay on t…

    ... as he lay on the ground and grabbed his mobile phone ...
    JuanF. Ramirez JuanF. Ramirez May 2010 Chit chat
  • An evening in with the Speccy emulatorAfter a day at work which didn't exactly go according to plan, and after three weeks of disruption at home due to redecorating, the old soul needed a…

    ... - maybe it's the above-ground graphics, rather than the sewers ...
    NickH NickH May 2010 Games
  • How to make a comp video cable for +2 greySorry to bog, maybe the clue is just laiden on another thread but.... I have just obtained a 128 +2 grey, fully working BUT the aerial signal is bad…

    ... signal and pin 1 for ground ?
    2) Is needed any ...
    Cignale Cignale June 2010 Hardware
  • So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…

    ... : Something called a phase locked loop. Effectively, what you have is ...
    Winston Winston June 2010 Hardware
  • Pandora handheld madness !Well, the Pandora handheld that was being distributed by the same people that bought the gp2x to the UK is slowly appearing in drips and drabs... He…

    ... development is thin on the ground due to all the production ...
    Hercules Hercules June 2010 Chit chat
<1…891011121314…34>

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!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
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    mel the bell on April 20

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