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<1234567…34>
  • Pentagon 1024SL 2.2As I'm getting another Pentagon board, I've decided to sell my first one, which is in a fully functional state, yet has 2 fixed traces and a few part…

    As I'm getting another Pentagon board, I've decided to ... Joystick, Sinclair Keyboard, Reset and NMI. As for power any PC ...
    Shockwav3 Shockwav3 September 2009 Sales
  • russian pentagon 128k for saleis anybody interested in russian speccy clone: Pentagon 128K, with tr-dos, ay, have a couple of working motherboards.

    is anybody interested in russian speccy clone:
    Pentagon 128K,
    with tr-dos, ay,
    have a couple of working motherboards.
    danrybs danrybs December 2002 Sales
  • Pentagon interface news from VELESOFTIt's from Xagon's board. It is about new interface for Speccy - it make Your comp compatible with Pentagon (and not only) and also it gives You up t…

    ... make Your comp compatible with Pentagon (and not only) and ... (without changes)

    - Pentagon 512kB mode (all memory is ... (see below)

    - Pentagon 1024kB mode (slow and fast ...
    - in ZX128+2 or Pentagon 512kB modes there is possibility ...
    Yerz Yerz June 2004 Sinclair Miscellaneous
  • Pentagon/Scorpion Speed of software Just wanted to ask if anyone knows if the 7Mhz mode is ever/ or maybe frequently used on the Pentagon or Scorpion Spectrum clones... Just that with…

    ... maybe frequently used on the Pentagon or Scorpion Spectrum clones...
    CKay CKay December 2004 Sinclair Miscellaneous
  • 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
  • Case for Pentagon 1024SLSee topic ... since using an ATX case for a spectrum would be boring in my opinion I'm looking for one of the below cases (or something in the same s…

    ... ://www.homecomputer.de/images/machines/Pentagon.jpg[/url]
    [url]http ...
    Shockwav3 Shockwav3 October 2006 Wanted
  • 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
  • info somewhere about russian Scorpion and Pentagon ports usage ?Is there a place, preferable written in Latin script (but not really mandatory), which describes the complete port assignement of the russian clones …

    ... the russian clones Scorpion and Pentagon ? Specially the RAM bank usage ...
    secarica secarica October 2007 Hardware
  • Build your own Pentagon 1024SLAlexey aka KingOfEvil was so kind to give me an english manual for the Pentagon with most (except for the floppy controller) chips adapted to "wester…

    ... an english manual for the Pentagon with most (except for the ... interested in building your own Pentagon the link is here [url ... ]http://pentagon.nedopc.com/ver22_e.rar[/url ... of you wants to order Pentagon 1024SL V2.2 boards, lemme ...
    Shockwav3 Shockwav3 November 2007 Hardware
  • Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…

    ... , so I added support for Pentagon timing instead, so I can ...
    Patrik Rak Patrik Rak November 2007 Emulators
  • 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
  • Fuse for Mac OS X 0.10.0 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…

    ... Kendall; thanks, Mark Woodmass).
    [*] NMI causes Z80 to unHALT (Philip ... scalers (Gergely Szasz).
    [*] Revert Pentagon 128 to being the "base ...
    Fred Fred December 2008 Emulators
  • 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
  • Extended memory and SNApshots in emulatorsExist any snapshot fileformat that support extended memory for ZX (clones) ? I see only Z80 fileformat with 48/128 and 256kB(ZS Scorpion 256) support…

    ... t supported other snapshots for Pentagon 512/1024/ATM turbo, etc ... all info about Russian clones (Pentagon,Scorpion,KAY,Profi), General Sound ... interface new BIOS rom with NMI menu + task manager. Each ... type+memory size(ZX48/128, Pentagon 256/512/1024, Scorpion ...
    velesoft velesoft August 2009 Emulators
  • New interface for ZXThis is my old (2004) unfinished project of internal interface for ZX Spectrum 128+2: ([url]http://velesoft.speccy.cz/hardware_in_development.htm[/u…

    ... /> emulation: ZX Profi 1024, Pentagon 128-1024, ZS Scorpion 256 ... with ZX Profi 1024, Pentagon 128-1024, ZS Scorpion ... with ramdisc in PROFI or PENTAGON memory)
    Speed-up ... memory emulation
    - software controlled NMI button
    - memory paging ...
    velesoft velesoft December 2009 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
  • Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…

    ... />
    Port 0x1FFD on the Pentagon switches memory banks as described ... this be compatible with the Pentagon's port 0x1FFD?
    ajmoss ajmoss August 2010 Hardware
  • Fuse for Mac OS X 1.0.0 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…

    ... Meunier).
    [*] Add support for Pentagon 1024SL v2.2 16 colour ... ; thanks, Simon Owen).
    [*] Z80 NMI should take some time (Fredrick ...
    Fred Fred December 2010 Emulators
  • 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
  • Speccy2010 - pentagon emulation using GlukIs anyone here familar with Speccy2010 (FPGA Russian Sinclair Spectrum clone). ? I'm using Pentagon mode on Speccy2010 (it uses something called Glu…

    ... ). ?

    I'm using Pentagon mode on Speccy2010 (it uses ...
    Hercules Hercules April 2011 Hardware
  • BETA-DISC (TR-DOS) support in ZX emulatorsBETADISC 128 is original device designed for external use with ZX Spectrum 128/+2(grey). Russians ZX clones (Pentagon, Scorpion, ZX profi, Quorum, ZX…

    ... /+2(grey). Russians ZX clones (Pentagon, Scorpion, ZX profi, Quorum, ... Original betadisc use MAGIC button (NMI) for save 128kB snapshot to ... , FUSE, ....) support only classic NMI with jump to ZX rom ... for this emulators without NMI support I use modified versions ...
    velesoft velesoft September 2011 Emulators
  • 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
  • Pentagon: publicationPentagon: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003656[/url] Was a type-in published in the german magazine.

    Pentagon:
    [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003656[/url]
    Was a type-in published in the german magazine.
    LCD LCD May 2012 Infoseek database
  • 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
  • Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …

    Does anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ?
    Looking at schematics it has to be simple solution, probably king of interleaving, but I could not find any details.
    kpuchatek kpuchatek October 2012 Hardware
<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…
  • russian pentagon 128k for saleis anybody interested in russian speccy clone:<br /> Pentagon 128K,<br /> with tr-dos, ay,<br /> have a couple of working motherboards.
  • Pentagon interface news from VELESOFTIt's from Xagon's board. <br /> It is about new interface for Speccy - it make Your comp compatible with Pentagon (and not only) and also it gives Yo…
  • Pentagon/Scorpion Speed of softwareJust wanted to ask if anyone knows if the 7Mhz mode is ever/ or maybe frequently used on the Pentagon or Scorpion Spectrum clones...<br /> <br /> Jus…
  • Scorpion 256K games? Pentagon 512K games?I wondered if there were any games that used more than 128K.
  • 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 …
  • Case for Pentagon 1024SLSee topic ... since using an ATX case for a spectrum would be boring in my opinion I'm looking for one of the below cases (or something in the same s…
  • 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…
  • Pentagon-1024 manufacturingI am finishing a trial assembly of 2 boards. Unfortunately getting components appears to be very time-consuming (it's difficult to obtain electronic …

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