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<1234567…34>
  • Harlequin turbo mode ( 7 MHz )Hi, All. Sorry for my bad english. I make Harlequin mod - turbo mode ( CPU clock 7MHz ) for Harlequin. Could you be so kind to write your opin…

    ... /> S1 - Turbo switch ( ON - Turbo ( 7MHz ), OFF - Normal ( 3.5 MHz )
    < ... be 7MHz in Turbo mode too, or 3.5 MHz anytime ?
    MHz and 7 MHz of CLKB in turbo mode.
    ... demand in turbo mode exactly 3,5 MHz or exactly CPUCLK ( 7 MHz )?
    tetroid tetroid May 2016 Hardware
  • ZX Nuvo 128..Hi There, I have built the ZX Nuvo 128 by Superfo, but it has a problem. The machine is working, but the video signal is completely bonkers. I've …

    ... wondering...Will Davide Barlotti's Turbo 7 MHz mod for Harlequin issue one ...
    geoanas geoanas October 2018 Hardware
  • ZX Nuvo 128..Hi There, I have built the ZX Nuvo 128 by Superfo, but it has a problem. The machine is working, but the video signal is completely bonkers. I've …

    ... wondering...Will Davide Barlotti's Turbo 7 MHz mod for Harlequin issue one ... 74HC74 and GND to select turbo mode.
    All input pins ...
    superfo superfo October 2018 Hardware
  • "Your Game" - a ZX Spectrum game making competitionHello! Here is an interesting information from Alone Coder: **************************************** "Your Game" ZX Spectrum game making competi…

    ... (It seems that only ATM Turbo 2 compatible, or potentially compatible ... features of ATM
    Turbo 2 / ZX Evolution computers ... 4MB in ZX Evolution), 7 MHz CPU (14 MHz in ZX Evolution) and ... Spectrum.

    ATM Turbo 2 programming manual (English): [url ...
    Yerzmyey Yerzmyey May 2013 Sinclair Miscellaneous
  • Spectrum modficationsThere is a post about Outrun on the games forum, which makes the fair point that the game is playable when you double the speed on an emulator. Other…

    ... :Sprinter (21 Mhz) and Scorpion 256+ Turbo (3.5-7 Mhz). A normal Spectrum ... splits up the 14 Mhz tact into 7 Mhz for video and 3 ... split it to 14 Mhz for ULA and 7 Mhz for CPU, switchable ... to 3.5 Mhz, you can ...
    LCD LCD March 2003 Sinclair Miscellaneous
  • Spectrum modficationsThere is a post about Outrun on the games forum, which makes the fair point that the game is playable when you double the speed on an emulator. Other…

    ... Spectrums:Sprinter (21 Mhz) and Scorpion 256+ Turbo (3.5-7 Mhz). A normal ...
    Dunny Dunny March 2003 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…

    ... seen is indeed running at 7 Mhz or the usual 3.54 ... Mhz and just some nifty acid ... versions of the Scorpion/ATM Turbo have a faster mode - so ...
    b00mzi11a b00mzi11a December 2004 Sinclair Miscellaneous
  • Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…

    ... it uses bits 6 and 7 from #7FFD to set additional ... on 128k compatibility mode. Bits 7 and 6 #7FFD port get ... /> bit 4 - "0" = turbo on, "1" = turbo off (7 mHz turbo).
    bit 5 - not ... - 384x304 video mode.
    bit 7 - not used.
    Information about ...
    Sonic Sonic May 2007 Hardware
  • IDE-media only Spectrum games?A similar discussion is taking place at Speccy.org's forums, but I thought it was worth to start the topic here. Now that we have several IDE interfa…

    ... most advanced ZX clones - Pentagon + 7 MHz mod + 16col mod (videomode with ... controller + Covox, and for ATM Turbo 2+ (which have all these ... usual ZX with 3.5 MHz and native videomode. Some years ...
    Shiru Shiru October 2007 Development
  • MP3 interface for ZX SpectrumThis is new version of russian GENERAL SOUND interface with MP3 support: [url]http://translate.google.com/translate?u=http%3A%2F%2Fwww.nedopc.com%2F…

    ... , it has some problems with turbo mode (7 MHz), and never was produced ...
    Shiru Shiru October 2008 Hardware
  • MP3 interface for ZX SpectrumThis is new version of russian GENERAL SOUND interface with MP3 support: [url]http://translate.google.com/translate?u=http%3A%2F%2Fwww.nedopc.com%2F…

    ... , it has some problems with turbo mode (7 MHz), and never was produced ...
    mcleod_ideafix mcleod_ideafix October 2008 Hardware
  • Opinion on new 128K only gamesHello, Being new to the WOS community, I am unclear on the attitude towards 128K only software, that is; Is there a strong need to support the 48K m…

    ... thing with Scorpion ZS 256 Turbo+. Supporting 256 KB RAM is ... what I want, also not 7 MHz CPU Clock (except optional).
    LCD LCD October 2010 New game ideas
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... even with 7 MHz CPU (all the clones with 4bpp had turbo mode ...
    Shiru Shiru January 2011 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... even with 7 MHz CPU (all the clones with 4bpp had turbo mode ...
    RetroTechie RetroTechie January 2011 Hardware
  • Gauging interest: ZX EvolutionHi everyone. First of all I would like to introduce myself, since this is my first post. My name is Conrad, I'm from Vancouver, BC, Canada, and I hav…

    ... br /> * Z80 3.5 MHz (classic mode)/ 7 MHz (turbo mode without CPU wait ... states)/ 14 MHz (mega turbo with ... with the Pentagon/ATM Turbo 2+ Russian spectrum clones ...
    When running in turbo mode, many speccy games that ...
    TheRogue TheRogue September 2011 Announcements
  • Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…

    ... Evo uses two rows of 7 MHz DRAM (there are WAITs ... R800 processor implemented in MSX Turbo R (which btw it ... that literally run faster in turbo mode so are almost ... game that gains FPS in turbo mode is [B]Lotus ... Esprit Turbo Challenge[/B]. For other ...
    Alone Coder Alone Coder June 2013 Development
  • Can emulators run 'accelerated' like Spectrum NextI saw a video of the Spectrum Next running games in 'accelerated' mode (7Hz) -- Hard Drivin' was one of the examples. This gave a smoother framerate …

    ... , which has a software-enabled turbo mode (7 MHz).
    Ast_A_Moore Ast_A_Moore May 2017 Emulators
  • What (Speccy) game are you currently playing ?(Quite a few threads on what youre listening to, watching etc) What Speccy game are you currently playing ? After playing a LOT of Invasion of the …

    ... effects.
    At 3.5 MHz CPU clock the Speccy version ... , so I changed it to 7 MHz mode in Speculator.
    It ... then go back to the Turbo Speccy Edition for the ultimate ...
    marco.nadal.75 marco.nadal.75 September 2020 Games
  • Win CE emusHi all again.. I was unable to get the HP machine mentioned in my previous post... Instead I got a Sharp HC-4000 with 73.7 MHz MIPS R3912 RISC Proc…

    Hi all again..

    I was unable to get the HP machine mentioned in my previous post...

    Instead I got a Sharp HC-4000 with 73.7 MHz MIPS R3912 RISC Processor.

    Does any of the Speccy emulators work with that?
    zeropolis79 zeropolis79 February 2004 Emulators
  • 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…

    ... seen is indeed running at 7 Mhz or the usual 3.54 ... Mhz and just some nifty acid ...
    CKay CKay December 2004 Sinclair Miscellaneous
  • ?8912 or 8912A?Hi! I've just changed a defective AY-3-8912A in a +3. Tried a spare 8912 from my "Vectrex spare box", and seemed to work ok: from +3 BASIC I played a…

    ... maximum clock frequency is 2 MHz. I don't know if ... chip is somewhere near 1,7 MHz?

    Is anything I ...
    mcleod_ideafix mcleod_ideafix July 2009 Hardware
  • RGB to VGA convertor for ZX (clones)[img]http://s44.radikal.ru/i106/0908/1a/28c90d0ca25b.jpg[/img] [img]http://s15.radikal.ru/i188/0908/f2/c1d66b5f6d4f.jpg[/img] It's GOOGLE translatio…

    ... than 14MHz (ZX128 use 17.7 MHz)

    ( +2/+2A/+3 ... use crystal 35.469 MHz and ZX128 use 17.7345 ... MHz )
    After modification VGA convertor ...
    velesoft velesoft August 2009 Hardware
  • Sinclair's Cancelled ProjectsDoes anybody have anymore info on any of these projects or are there any old Sinclair engineers on the Spectrum scene that could shed a little more l…

    ... . Loki was to have a 7 MHz Z80H CPU, 128 KiB of ...
    Rebelstar Rebelstar September 2014 Development
  • BASIC games that could be better if compiled?I was looking [url=https://worldofspectrum.org/forums/discussion/57843/best-compiled-basic-game#latest]this thread[/url] and I was wondering is speed…

    ... assembler or executing them at 7 MHz).

    What BASIC games ...
    Zup Zup July 2020 Games
  • Were the full Sinclair Loki specs ever actually known?I was just curious. A lot was leaked to the media, but the exact specs seem different depending on source. Some say it could support up to 512x256 an…

    ... ended up modular.

    7 MHz was given, but would have ...
    cj7hawk cj7hawk August 2021 Hardware
  • Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??

    ... /> A) Yes, but 3.5xxx Mhz comes from dividing the frequency ... of 14 Mhz crystal and spliting it to ... frequency. If more speed, then 7 Mhz (at least for Spectrum 128 ...
    LCD LCD March 2004 Sinclair Miscellaneous
  • Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??

    ... /> A) Yes, but 3.5xxx Mhz comes from dividing the frequency ... of 14 Mhz crystal and spliting it to ... frequency. If more speed, then 7 Mhz (at least for Spectrum 128 ... of line 0

    7) repeatedly holding down a key ...
    Sadako Sadako March 2004 Sinclair Miscellaneous
  • CHROME: a new ZX model! :)Probably You know already about 'last days news', but well... ;) Such informations are so important that I'll put it here: here is a news about n…

    ... /> Cpu speed is 3,58-7 MHz switchable via jumper or i ...
    Yerz Yerz April 2004 Sinclair Miscellaneous
  • Would you buy speccy games if they were made/sold today?Say for some crazy instant that ZX Spectrum came back on the scene bigtime and they started making selling ZX Spectrum versions of the latest games, …

    ... could also do with a 7 Mhz processor to make it more ...
    Jmk Jmk January 2006 Games
  • early games questionhello when i was watching BBC news this morning,it said that that the PC was 25 years old.that begs the question,when did PC games start getting bet…

    ... 8088 chip running at 4.7 MHz, 10Mb 'Winchester drive', a 360K ...
    chaosmongers chaosmongers August 2006 Games
<1234567…34>

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