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<1234567…34>
  • Nesting NMI'sz80-undocumented (.pdf) page 20/21 [from [url]http://www.myquest.nl/nowind/?q=node/10[/url] ] suggests that IFF1 is not copied from IFF2 if NMI's are…

    ... not copied from IFF2 if NMI's are nested.

    NMI's.

    I am ...
    bluechip bluechip August 2006 Emulators
  • for a stupid: what?s NMI?erhm, yes, I?m not familiar with it... :rolleyes: I know the function of a hardware ?snapshot? button from Didaktik M/Kompakt, but I?m not familiar…

    ... ?m not familiar with [B]NMI[/B] shortcut and it?s ... ...?

    in Spectaculator generating NMI under "normal circumstances" only resets ...
    de Vandemar Croup de Vandemar Croup August 2006 Hardware
  • NMI : especially PitersHello Piters, here the link to your NMI-button. [url]http://members.tripod.com/~piters/nmibutto.htm[/url] I don't understand your reason to place …

    ... /> here the link to your NMI-button.

    [url]http ... /> I just want to connect NMI over a switch. Why would ...
    Dr BEEP Dr BEEP April 2007 Hardware
  • Trying to create NMI, whats this switch?Hi, I have been reading a book Z80 Applications, and I am trying to create a simple device for creating a NMI. Here is a schematic: [url]http://www…

    ... simple device for creating a NMI. Here is a schematic:
    carlinski carlinski October 2007 Hardware
  • Nmi menu for MB02+ enters 21st century:)Dear speccy users and especially MB02+ ones, I am proud to anounce that after 5 months of ceaseless and intensive work I am releasing new version of…

    ... releasing new version of my nmi menu for MB02+, version 1 ... behaviour of my web or nmi menu, let me know, please ...
    Hood Hood August 2008 Development
  • nmi menu for MB02+, new fixed versionDear MB02+ users and all others, on my site hood.speccy.cz you will find a fixed version of nmi menu. There was an error, when loading 128k .SNA sna…

    ... find a fixed version of nmi menu. There was an error ...
    Hood Hood September 2008 Development
  • Divide+ - Residos and NMI button problemGood day All! I have Timex 2048 (48K) with Divide Plus iface and AY music chip. I'm trying to run taskman which I already download and install from W…

    ... list of %roms.
    NMI button is working well with ... reset - there was no problem - NMI still works). After hardware reset ... choosing Residos from firmware selector, NMI button is not working anymore ... .
    To have NMI working with taskmanager I have ...
    micky micky December 2008 Hardware
  • DivIDE possible to switch on/off NMI line?Is it possible to switch on or off the NMI line? Micky

    Is it possible to switch on or off the NMI line?


    Micky
    -Micky -Micky April 2010 Hardware
  • Opus discovery and the NMI issueI recently acquired an Opus Discovery (Cheers Jed!!), now I know it says you cant use an NMI in the Opus's expansion port but is there a way that you…

    ... says you cant use an NMI in the Opus's expansion ...
    Macc Macc March 2011 Hardware
  • ROM switch on NMIHello! Please, help me or point in the right direction. I am building a project for 48k spectrum which must activate its rom (actually static ram) …

    ... ROMCS
    and deactivate my NMI. So, this way ROMCS switch ... in between instruction fetches and NMI
    detected for sure. When ... the end of cycle), activate NMI line, activate BUSREQ,
    ... BUSREQ, wait for M1, deactivate NMI.
    All operations in this ...
    ArtemKuchin ArtemKuchin April 2012 Hardware
  • ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…

    ... by .commands, external programs and NMI.SYS. Functions available on rst ... files) on demand
    * NMI.SYS support (NMI system is independent, ESXDOS ... on divIDE+ systems (only the NMI browser works).[/b]

    phoenix^ra phoenix^ra April 2012 Announcements
  • Would things of been better if the NMI was fixed ?I was just wondering, if the NMI bug was fixed say early on in production, so for instance all issue twos (and late issue ones) and beyond had the "f…

    ... was just wondering, if the NMI bug was fixed say early ...
    spider spider May 2012 Hardware
  • DivIDE emulation - NMI buttonAll emulators as I know use same way for active NMI in DivIDE mode. After press NMI button emulator make only one NMI signal. But on real DivIDE int…

    ... DivIDE mode.
    After press NMI button emulator make only one ... on real DivIDE interface work NMI with different way:
    If ... disconnect and I constantly hold NMI button then CPU again must ... then emulator must again make NMI.

    This feature is ...
    velesoft velesoft August 2012 Emulators
  • POKE for Game Cheats without e.g. Multiface NMI HardwareHello, can someone tell me a way for entering game POKEs without any Hardware / NMI Button Interface ? Is there a software which can be pre-loaded…

    ... POKEs
    without any Hardware / NMI Button Interface ?

    Is ...
    Luzie Luzie January 2013 Sinclair Miscellaneous
  • +2 Grey NMI problemMy shonky old +2 has always worked very well until recently, ive found that hitting the nmi button on my multiface will either do one of three things…

    ... , ive found that hitting the nmi button on my multiface will ...
    Macc Macc May 2013 Hardware
  • Residos with Task Manager crashes on NMI button pressI finally installed my DivIDE Plus which I actually bought about one and a half years ago. (I have way too little time for this project :cry: .) Ever…

    ... perfectly with FATware. Pressing the NMI button always gets me into ... I encountered this problem: The NMI button sometimes gets me into ... know I can press the NMI button two times to get ... , this basic problem remained: the NMI button works perfectly in FATware ...
    ZXHistory ZXHistory June 2013 Hardware
  • Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…

    ... hook into RST "vectors" and NMI on a Spectrum without affecting ... 0x38 instructions there is also NMI interrupt which /when triggered/ jumps ... with sw and possible hw /nmi/ breakpoints,
    - shadow OS / by ...
    tstih tstih July 2014 Development
  • NMI doesn't work on a DiscipleI've had quite a couple of Disciple interfaces in my hands, and currently I'm testing one. Everything works, except the NMI routine: when GDOS is lo…

    ... />
    Everything works, except the NMI routine: when GDOS is loaded ... and I press the NMI button, nothing happens.
    I ... paged out and I press NMI, a reset occurs, so the ...
    bverstee bverstee November 2014 Hardware
  • New NMI handler / NMI.SYS for esxDOS is in developmentNew NMI handler / NMI.SYS for esxDOS in development, more info and Download-Link can be found here: [url="http://board.esxdos.org/viewtopic.php?pi…

    New NMI handler / NMI.SYS for esxDOS in development, more info and Download-Link can be found here:

    [url="http://board.esxdos.org/viewtopic.php?pid=315#p315"]board.esxdos.org/viewtopic.php?pid=315#p315[/url]
    Luzie Luzie September 2017 Announcements
  • Which emulator? (easy NMI)I am sure that I have in the past used two different emulators which had easy NMI generation (for accessing a Multiface): one (I think it was X128) u…

    ... different emulators which had easy NMI generation (for accessing a Multiface ... for various control tasks including "NMI".

    Is there an ... a menu and click "Generate NMI" is a pain in the ...
    robert@fm robert@fm October 2017 Emulators
  • New nmi menu 1.6 for MB-02+Dear MB-02+ users, it's been 10 years since my last release of nmi menu. Now, after 10 years anniversary I am releasing brand new version, 1.6. [i…

    ... since my last release of nmi menu. Now, after ... user partial configuration of nmi like in 1.35 ... BSROM and BSDOS by reorganising nmi routines
    6) ... "E", right away after nmi button press
    10) ... url="https://hood.speccy.cz/nmi.htm"]https://hood.speccy.cz ...
    Hood Hood February 2018 Brand new software
  • NMI Routine and Restarts in a new 128K ROMI'm presently engaged in creating AGD 5 with the intention of making it a pair of 16K ROMs for the 128K/+2. I'm fairly sure that the vast majority o…

    ... difference. If memory serves, the NMI bug wasn't fixed until ... any benefit to fixing the NMI bug in the new ROMs ...
    jonathan jonathan July 2022 Hardware
  • Real Disk Utility On RealSpectrumI have been trying to create an MGT(Plus D) image file using Real disk without success. I created a blank MGT image file and formatted it. I then …

    ... dumped my games using the NMI.

    The plus d ...
    dodgy geezer dodgy geezer November 2002 Emulators
  • [ANN]: Spectaculator 5.0 available for downloadHere we go again... *deep breath* ;) Spectaculator is a Sinclair ZX Spectrum emulator for PCs running Windows 95, 98, ME, NT 4, 2000 and XP. Specta…

    ... Added a 'Generate NMI' option which triggers an NMI even if the ...
    Jon Needle Jon Needle April 2003 Emulators
  • A great ROMBack in the early 90s my ZX clone (called "Cobra" if anyone's interested) had a sort of a "SamRam" (actually an alternate ROM accessed via a NMI) tha…

    ... alternate ROM accessed via a NMI) that displayed a menu featuring ... at the press of the NMI button you got a powerful ...
    GOC GOC August 2003 Sinclair Miscellaneous
  • Spectaculator 5.x/6.x And Multiface 3Hi there, anyone had any trouble with this at all? The instructions say that it will auto-switch between a Multiface 128 and a Multiface 3 when choos…

    ... /> In fact - Just generating an NMI causes it to happen with ...
    b00mzi11a b00mzi11a December 2003 Emulators
  • New ROMAlthough commenced in late November, it is only now in the last few hours of 2003 that the "Gosh Wonderful" ROM gw03.rom has attained a release state…

    ... all it has the original NMI Warm Reset feature which makes ... keypress in emulators with an NMI button.
    It is fully ...
    Geoff Geoff December 2003 Sinclair Miscellaneous
  • InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…

    ... br />
    Non-maskable interrupt (NMI)

    The Z80 has ... accepted.

    When an NMI is accepted, IFF1 is reset ... actions.

    When an NMI occurs, it takes 11 tstates ... /> * M1: 5 tstates: acknowledge the NMI and decrement SP.
    * M2 ...
    Philip Kendall Philip Kendall July 2004 Development
  • Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …

    ... talking about maskable interrupts vs NMI. Are those generated by different ...
    Erlstoned Erlstoned August 2004 Development
  • Universal disk drive controller project - information needed! Hello Speccy world! I am a hardware developer from Russia and old Speccy fan. Currently i am starting a project aimed at joining Western and Easter…

    ... CPU goes to #0066 address (NMI). How many software uses this ... with it because in Russia NMI is used by PC-compatible ... modem connected to Speccy (with NMI handler bug fixed in ROM ...
    Sonic Sonic June 2005 Sinclair Miscellaneous
<1234567…34>

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Related Threads

  • New NMI handler / NMI.SYS for esxDOS is in developmentNew NMI handler / NMI.SYS for esxDOS in development, more info and Download-Link can be found here:<br /> <br /> [url="http://board.esxdos.org/view…
  • Nesting NMI'sz80-undocumented (.pdf) page 20/21 [from [url]http://www.myquest.nl/nowind/?q=node/10[/url] ] suggests that IFF1 is not copied from IFF2 if NMI's are…
  • for a stupid: what?s NMI?erhm, yes, I?m not familiar with it... :rolleyes:<br /> <br /> I know the function of a hardware ?snapshot? button from Didaktik M/Kompakt, but I?m …
  • NMI : especially PitersHello Piters,<br /> <br /> here the link to your NMI-button.<br /> <br /> [url]http://members.tripod.com/~piters/nmibutto.htm[/url]<br /> <br /> I do…
  • Trying to create NMI, whats this switch?Hi,<br /> <br /> I have been reading a book Z80 Applications, and I am trying to create a simple device for creating a NMI. Here is a schematic:<br /…
  • Nmi menu for MB02+ enters 21st century:)Dear speccy users and especially MB02+ ones,<br /> <br /> I am proud to anounce that after 5 months of ceaseless and intensive work I am releasing ne…
  • nmi menu for MB02+, new fixed versionDear MB02+ users and all others,<br /> <br /> on my site hood.speccy.cz you will find a fixed version of nmi menu. There was an error, when loading 1…
  • Divide+ - Residos and NMI button problemGood day All!<br /> I have Timex 2048 (48K) with Divide Plus iface and AY music chip.<br /> I'm trying to run taskman which I already download and in…
  • DivIDE possible to switch on/off NMI line?Is it possible to switch on or off the NMI line?<br /> <br /> <br /> Micky
  • Opus discovery and the NMI issueI recently acquired an Opus Discovery (Cheers Jed!!), now I know it says you cant use an NMI in the Opus's expansion port but is there a way that you…

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