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  • Quadrax - Compatibility problems - help!I bought this game last month and when I tried to load it today...it crashes in my +2A!!! Sh*t!! the game was expensive to get, and now I can't play …

    ... to jump to $0000 (ie: reset) as soon as it processes ... change the code once the Z80 reaches that address, it should ...
    Jimmy Jimmy July 2009 Games
  • +3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…

    update:

    I pulled off the ROMs and the Z80 , I see the same pattern on screen.
    Esp. when I pull off the Z80, the border is black (does not change colours when I reset).
    xc8 xc8 September 2009 Hardware
  • +3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…

    ... the ROMs but kept the Z80 on its place.


    If I reset I see the same or ...
    xc8 xc8 September 2009 Hardware
  • +3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…

    ... of HALT pin at the Z80? Is it permanent high, permanent ... , not pulsing.
    (when I reset the machine I see it ...
    xc8 xc8 September 2009 Hardware
  • +3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…

    ... the CPU (its the 2nd Z80,as the 1st was dead ... ... its a Z80-4IRL , works ok on my ... ) = low pulse
    pin 26 (/RESET) = H
    pin 25 (/BUSRQ ...
    xc8 xc8 September 2009 Hardware
  • zzspectrumI see that zzspectrum.org is down. Does anybody have any documentation for zzspectrum or the full package of bits I need to get it running? I tried…

    ... 48K/128K
    * Good Z80 and screen emulation.
    ... Loads SNA (48K/128K) and Z80 snaps.
    * Loads TAP ... /> PARAMETERS
    load snapshot (Z80, SNA), tape (TAP) or cartridge ...
    METHODS
    reset() reset Spectrum.
    load(file) load ...
    FrankT FrankT October 2009 Emulators
  • Adjusting your code for screen refreshingOk, I'm aware that I should know it already after writing 5 Spectrum games in machine code but interrupts and screen refreshes were always my weaker …

    ... will happen
    XOR A ;reset 'FRAMES' to 0
    ... /> as the halting of Z80 clock by the ULA chip ... br /> equal to 224 Z80's T-states. So some ... br /> screen actions managed by Z80.
    This calculation can ... a rough indication, as the Z80 clock can be
    ...
    roko roko November 2009 Development
  • "8 CHANNELS" -ZX Spectrum BEEPER demoHi there. :) We finally managed to finish the BEEPER demo with 8-channels songs. You can get it from here: [url]http://pouet.net/prod.php?which=5…

    ... hardware sound is much more soft - so: pleasant - and emulation is ... too flat and rough (except Z80 Stealth, I presume).
    Ah ... one for instance [url]http://z80.i-demo.pl/Prodigy_Game.mp3 ...
    Mister Beep Mister Beep November 2009 Sinclair Miscellaneous
  • Commodore 1541 disk Drive.I cannot find the original thread I said this in before so I'll start a new one. I am thinking of getting a commodore 1541 Disk drive for my old br…

    ... you thinking of .. the magic reset switch.. that people trashed their ... />
    it was a soft/warm reset, so you could poke games ...
    fog fog November 2009 Chit chat
  • 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…

    ... find yourself wishing the Z80 ran a lot faster ... cycles (the time the Z80 spends processing each instruction) ... DEC A above will set/reset the Z flag[/COLOR][/ ... long before you wish the Z80 was *much* faster! What ... early on in your Z80 career makes lots of ...
    Chris Pile Chris Pile January 2010 Development
  • ZXDS 0.9.0 beta 1Hi! New version of [URL="http://zxds.raxoft.cz"]ZXDS[/URL] is available. Only one important change this time, but the one I have been dreaming about…

    ... that it's advisable to reset the Speccy before loading a ... . Sometimes I can use the z80 file on other emulators and ... playing Cyberbig I transferred the z80 file to PC and the ... Firefly when I transferred the z80 for screenshotting on Spin (same ...
    Vertigo Vertigo January 2010 Emulators
  • multiface 1 troubleshooting?ok I picked up one today, v1.. tried it on a 48k machine.. you hit the button , and your supposed to get a menu? this one just resets and the info …

    ... Multiface 128 manual[/URL] your Z80 might be duff:
    ... may have a substandard Z80 and be unfit for ... button causes the Spectrum to reset/crash (as NEW or ...
    reset)
    b) further pressing ... Spectrum (or more precisely its Z80) is
    faulty, ...
    jp jp January 2010 Hardware
  • MIA not listed found: En Busca De MortadeloRecently, digging in a Speccy CD-ROM from Amiga, called "Speccy Sensations", i?ve found the game,not listed anywhere in WOS.. This is a game program…

    ... programming competition hosted by Dro Soft.

    I?ve downloaded ... TZX or Tap available, only z80, and the author doesn?t ...
    Hercules Hercules February 2010 MIA/STP/SDP
  • Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…

    ... for easier usage:
    - tzx, z80 and other format support, not ... method also..
    - button for reset default screen size, after zooming ...
    Pegaz Pegaz February 2010 Emulators
  • Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…

    [QUOTE=Pegaz;426987]- tzx, z80 and other format support, not ... ".

    [QUOTE]- button for reset default screen size, after zooming ... until all Marat Fayzullin's Z80 C functions are completely replaced ...
    Madonna Mk 2 Madonna Mk 2 February 2010 Emulators
  • Some Beeper TunesAfter doing a verion of [URL="http://freestuff.grok.co.uk/vbspec/popcorn.szx"]popcorn[/URL] a few weeks back, I got a bit carried away with doing a f…

    ... /> [url]http://mister_beep.republika.pl/soft.html[/url]



    >Here are *.z80 snaps of the same files ...
    Mister Beep Mister Beep March 2010 Sinclair Miscellaneous
  • Some Beeper TunesAfter doing a verion of [URL="http://freestuff.grok.co.uk/vbspec/popcorn.szx"]popcorn[/URL] a few weeks back, I got a bit carried away with doing a f…

    ... /> I don't know. Actually Z80 as a sound generator has ... II[/url], or latest Topo Soft games like [url=http://www ...
    Shiru Shiru March 2010 Sinclair Miscellaneous
  • Someone can help me to fix my Zx Spectrum?I did a video about the startup: [url]http://dl.dropbox.com/u/1566495/ZXSPECTRUM03.mp4[/url] I have replaced the ULA with a working one (same proble…

    ... turn to white), then the Z80 is not executing any instruction ... either the ROM or the Z80 is faulty.

    ... be sure that both the Z80 and the ROM are ... the short circuit on C27 "reset" and the border is now ... so I guess [B]the Z80 & the Rom are OK ...
    gibs gibs March 2010 Hardware
  • Someone can help me to fix my Zx Spectrum?I did a video about the startup: [url]http://dl.dropbox.com/u/1566495/ZXSPECTRUM03.mp4[/url] I have replaced the ULA with a working one (same proble…

    ... , you try to do a reset (I recall that shorting C27 ... turn to white), then the Z80 is not executing any instruction ... either the ROM or the Z80 is faulty.

    If ... be sure that both the Z80 and the ROM are working ...
    RetroTechie RetroTechie March 2010 Hardware
  • Software with AY Music supportFollowing a couple of queries from customers, I thought it might be useful if we could have a thread which identifies which games and software suppor…

    ... /pub/sinclair/games/i/InhumanosLos.z80.zip[/url]
    Jet-Story ... ).tap.zip[/url]
    Sirwood (RESET after intro and LOAD!!) [url ...
    Yerzmyey Yerzmyey March 2010 Games
  • 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…

    ... on each of these the Z80 has to react within a ... using the hard or the soft DRQ. Apparently TR-DOS choose ...
    roko roko April 2010 Development
  • Correct flag response to BIT n,(HL) etc.When running the test program suggested by Arjun (thanks again), all intructions are passing the flag tests except the BIT n,(HL), BIT n,(IX+dis) and…

    ... BIT operations will fail the z80 tests.[/QUOTE]

    BIT ... is set
    N is reset

    b5 and b3 ...
    alien8r33d alien8r33d May 2010 Emulators
  • EPROM servicesAnyone ever heard of these people?. I bought a Spectrum add-on from ebay recently. There is an edge connector splitter, i.e. enables you to plug tw…

    ... eBay seller had a PG1984, SOFT-ROM board that went for ... PG85 board added NMI and RESET [This is yours :-) ]
    [url ...
    Geoff Geoff May 2010 Hardware
  • divIDE not working with my Spectrum +2aHi I bought a divIDE 57c and I am told that Fatware is flashed to divIDE. I tried following jumper settings: E E+A A and no jumper at all. When res…

    ... : OUT 227, 128 and press reset. DIVIDE logo must show.
    Z80 CPU, must be replaced.
    velesoft velesoft May 2010 Hardware
  • Two Odd Spectrum 128K FaultsI also have 2 Spectrum+128 machines with heatsinks. 1. Did not power up properly - I replaced the 7805 regulator and cleaned the edge connector and …

    ... the M1 line on the Z80 or does anyone have any ... ]


    Does it reset / crash with just this one ...
    Hercules Hercules May 2010 Hardware
  • Most touching AY music on a Speccy?Speccy music composers have shown us that the the AY chip can do much more than it originally was meant for. There are many tunes that I like and adm…

    ... (a proper sound-space) and soft enough sounding to get such ... to achieve it [url=http://z80.i-demo.pl/MISTER_BEEP-Synchronized_Machines ...
    Mister Beep Mister Beep May 2010 Sinclair Miscellaneous
  • How to read +3BASIC program in PC ?Is it possible to see the +3BASIC file content in the pc with some editor ?. I used a HEX editor and i saw that the program is there but converted to…

    i tried. loaded my dsk with spectaculator and then loaded my program.
    Then i saved it to z80 format and tried to load with Basin. But the Basin dont loaded the proram and did a reset.

    What other options i have to see the +3basic source ?
    arfgh arfgh May 2010 Sinclair Basic
  • testing if speccy is fully functionalHi, There is so much mention of T states but still confused. Does this mean if an instructin is out by a T-state or more then the speccy is faulty?…

    ... more, nothing less. The Z80 will always execute a given ... of clock ticks, the Z80 simply wouldn't function ... length of the initial reset pulse, this depends on ... scheme of things, the reset pulse merely needs to ... which reset is no longer asserted on the Z80 may ...
    Winston Winston June 2010 Sinclair Miscellaneous
  • KING OF PONG: Pong revisitedHello everybody. I'm proud to announce you that my last personal project for the ZX Spectrum, "KING OF PONG" is available to download here at WOS si…

    [QUOTE=Bandit;449480]Hope I'm not being too cheeky but here's a *very primitive* computer opponent that makes a little bit of a game of it.[/QUOTE]

    My! Not in my wildest dreams I would thought someone made a patch to play against the CPU! **G ...
    Ricardo Cancho Ricardo Cancho June 2010 Development
  • DivIDE with gray +2 LOAD not workingI have 128+2 gray. It has faulty upper memory. PEEK 23733 shows 191. I wanted to use divIDE to load some test programs, but it always hangs when exec…

    ... RAM :-?
    I can only Reset after Load. Edge connector should ... .

    It is NEC Z80 CPU, original Zilog did not ...
    kpuchatek kpuchatek June 2010 Hardware
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Latest Posts

  • I am currently watching.....
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    Renegade on April 21
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    John Elliott on April 21
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    AndyC on April 21
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