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<1234567…34>
  • My first program - a vertical scrollerHi all, I'm new here. Nice to meet you all! A couple of weeks ago I decided to learn Z80 assembly language. I spent many hours in front of the Spec…

    ... ago I decided to learn Z80 assembly language. I spent many ... /> To learn to program the Z80/Spectrum hardware, I spent some time ...
    riv riv March 2010 Development
  • looking for a "html5+js"-based zx-spectrum emulator with webmsx/javatari featuresperhaps some of you figured out how neat was this feature from webmsx and javatari (both great html5+js emulators, developed from Paulo Peccin - @ppe…

    ... for msx and all other z80-based hardware, i wanted to simply ...
    nitrofurano nitrofurano April 2020 Emulators
  • What do you use a Spectrum emulator for?I suspected most emulator users who expressed a preference were gamers.

    But you will be using an "ideal" version of the speccy and your hardware, not the nasty "true life" device (which can develop quircks that requires you to modify hardware or do software work-arounds).
    Zup Zup October 2008 Emulators
  • which one bit of hardware would people want re-made?I'm just curious in the sense of I see interface 1's go for a fair bit on ebay and also multiface units etc.. so whats the one thing that you don't …

    ... hardware. In my opinion, to be Speccy hardware it must have a hardware Z80 ... and hardware ULA - either ... ). It has to be running Z80 instructions natively.
    Winston Winston November 2009 Hardware
  • which one bit of hardware would people want re-made?I'm just curious in the sense of I see interface 1's go for a fair bit on ebay and also multiface units etc.. so whats the one thing that you don't …

    ... hardware. In my opinion, to be Speccy hardware it must have a hardware Z80 ... and hardware ULA - either ... ). It has to be running Z80 instructions natively.[/QUOTE]

    Hercules Hercules November 2009 Hardware
  • Specbas Photo'sOK here's a place to show us some screen grabs of Specbas programs Here are some of my Invaders screen grabs [IMG]http://i699.photobucket.com/album…

    ... code is actually emulating the hardware required to run the original ... techniques be used to emulate z80 chip hardware, do you think?... (Although ...
    kgmcneil kgmcneil March 2012 Sinclair Miscellaneous
  • Specbas Photo'sOK here's a place to show us some screen grabs of Specbas programs Here are some of my Invaders screen grabs [IMG]http://i699.photobucket.com/album…

    ... techniques be used to emulate z80 chip hardware, do you think?... (Although ...
    ASH-II ASH-II March 2012 Sinclair Miscellaneous
  • ReRun - Speccy OutRun done better[IMG]http://img.photobucket.com/albums/v661/Swainy_boy/outrundelux_zpsb772e8cd.gif[/IMG] Any takers? Smaller sprites, faster game.

    ... more on emulators than real hardware, but to be honest, if ... invest money now in real hardware, it would more than likely ... money and space for real z80 chip hardware (rather than FPGA clones ...
    kgmcneil kgmcneil May 2013 New game ideas
  • ZX Spectrum 48k issuesHi all! A couple of days ago I bought my first 48k Speccy off ebay (I already own a beautiful QL expanded with QubIDE interface and 640k ram). It was…

    ... RAM from ROM/upper RAM/Z80 data lines, may need adjustment ... one.

    Another note: Z80 product specification indicates that clock ... , from all my experience with Z80 based hardware, I don't think ... it's very critical for most Z80 ...
    RetroTechie RetroTechie February 2017 Hardware
  • ZX Spectrum 48k issuesHi all! A couple of days ago I bought my first 48k Speccy off ebay (I already own a beautiful QL expanded with QubIDE interface and 640k ram). It was…

    ... RetroTechie;897040"]
    Another note: Z80 product specification indicates that clock ... , from all my experience with Z80 based hardware, I don't think ... it's very critical for most Z80 ... />
    I can confirm that. Z80 it's like a WW ...
    Trantor Trantor February 2017 Hardware
  • Is it possible to make the Z80 execute a bizarre instruction?What happens when it gets an unrecognised instruction OP Code, I mean something following a #ED that isn't one of the undocumented instructions eithe…

    ... />
    Because the Z80 is normally always running at ... to stop the Z80, but that requires hardware. The ULA regularly ... stops the Z80, but ...
    External hardware however can also stop the Z80. The Z80 has two ...
    1024MAK 1024MAK March 2022 Development
  • How does the Z80 communicate with hardware?How does the Spectrum (or Z80) interact with other hardware devices? I think devices can communicate with the CPU through interrupts, but how can the…

    ... the Spectrum (or Z80) interact with other hardware devices? I think devices ...
    Rickard Rickard November 2007 Development
  • New Spectrum HardwareHi all. Well its Friday so it seems as good a time as any (business is a bit slack at the moment) to start up a thread about creating new Spectrum ha…

    ... about creating new Spectrum hardware. Here are a few ... do we really need new hardware? Seems to be plenty ... of original hardware and software around if ... /> RF TV output
    Z80 processor
    256k RAM ( ... that will run on a Z80?

    5. ...
    nickc nickc June 2007 Hardware
  • Z80 Expander Bus ControllHello there my fellow forum chummies, I would like to ask a few technical questions, Now I come from an Amiga Hardware based background, and as yo…

    ... I come from an Amiga Hardware based background, and as you ... /> any links to some decent Z80 expansion port schematics?

    Z80 inteface expander[/b]
    [ ... /> Will this interfere with the Z80 expansion Bus
    [/list]
    Zetr0 Zetr0 June 2009 Hardware
  • 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 …

    ... the +2A/+3 halts the Z80 using WAIT?

    All ... that the ULA halts the Z80 by forcing CLK high. I ... this behaviour may simplify some hardware, notably speed enhancements. Theorytically, it ... to put a Z804020 CPU (Z80 capable of 20MHz clock), isolate ...
    mcleod_ideafix mcleod_ideafix October 2009 Hardware
  • Zetr0's Catchup Time (hardware / software)Hello there my fellow ZX'ers I have been soaking myself into the "world of spectrum" and more I do, the more I realize I have to play catchup.... a …

    ... awesome projects - both software and hardware that interest me.

    Z80 ASM, so now's a ...
    Zetr0 Zetr0 March 2011 Development
  • Z80 Music Portal - massive updateHi there. Finally I found some time (and life forces) to make a massive update of [url]http://z80.i-demo.pl/[/url] music portal. Mostly songs by S…

    ... massive update of [url]http://z80.i-demo.pl/[/url] music ... 3 re-recorded from real hardware).
    Also added - tunes signed ...
    Yerzmyey Yerzmyey April 2011 Sinclair Miscellaneous
  • ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…

    ... that is ostensibly about the hardware of the ZX80 and 81 ... outside of the well-documented Z80 do.

    First the ... a 0 off to the Z80.

    When RFSH is ... it usurps INT from the Z80's internal point of view ...
    Thommy Thommy September 2011 Hardware
  • Z80 snapshot formatI read documentation for Z80 snapshot on WOS and see in table possibility insert ROM image to Z80 file. Here is full table: [code]The pages are numb…

    ... possibility insert ROM image to Z80 file.

    Here is ... are numbered, depending on the hardware mode, in the following way ... emulator supported rom loading from Z80 file ? I test ZX ... (can't save Z80...).

    Here is Z80 snapshot 128kB with ...
    velesoft velesoft August 2012 Emulators
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... the multiplexer outputs from the Z80 side are higher. Hope that ... screen implementation, or raster effects, hardware sprites, hardware scroll, DMA engine, or ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • Fantasy Z80 instructions?This follows on from something catmeows said in another thread, and that I've been meaning to ask for a while. This may sound daft to people with mo…

    ... with more knowledge of the hardware (and sorry to labour the ... which current ones in the Z80 set would you replace?
    R-Tape R-Tape November 2012 Development
  • Hardware description - DivIDE interface[B][U]DIVIDE interface / DivIDE 2k11[/U][/B] [B][U]The main description[/U][/B] DIVIDE is IDE interface with own external memory. Thanks to very goo…

    ... connector.

    [B][U]Hardware description[/U][/B]
    DIVIDE ... with this methode detect reset, modify rst8 and im 1 routine ... new correct NMI menu and modify load / verify / save routines for ...
    velesoft velesoft August 2013 Hardware
  • "Z80 chip MUSIC SITE" updatedZ80 chip MUSIC SITE [url]http://z80.i-demo.pl/[/url] has been updated with following 1-bit chiptunes, recorded from real Sinclair hardware: [url]htt…

    ... from real Sinclair hardware:

    [url]http://z80.i-demo.pl ... .mp3[/url]
    [url]http://z80.i-demo.pl/Raphael_Goulart-Dancing_frantically_for_about_26_secs ... mp3[/url]
    [url]http://z80.i-demo.pl/MovieMovies1-It_keeps_on_beeping_something_Russian ...
    Yerzmyey Yerzmyey March 2014 Announcements
  • Great to be back....and with fun to comeHi all, 1982: I bought a new 16k issue 2 in 1982, eventually got microdrives and a dktronics keyboard (version 1). Built a home made eprom programme…

    ... eprom programmer so I could modify the rom, and used the ... ) for my dads business.
    Z80 was the processor we used ... needs tape!!!

    However, hardware design is my forte really ...
    IanJ IanJ August 2014 Announcements
  • Ziloghino - Arduino like Z80 systemHi, I found this board on Kickstarter, the Ziloghuino. It's an Arduino like Z80 system extensible with hardware shields. With some effort maybe s…

    ... 's an Arduino like Z80 system extensible with hardware shields.
    With ...
    GNF GNF July 2015 Hardware
  • New game: Speccies 2 for arcade hardware.I hope this is the right section for this - "Brand new software" doesn't say anything about being "Spectrum only". If it isn't then I'm sure a mod wi…

    ... Spectrum game, still in Z80, just for arcade hardware. ;)

    I ... work on the new hardware. And that "new" hardware is Taito's ... L System arcade hardware. It's the system that ...
    Sokurah Sokurah October 2015 Brand new software
  • A few hardware questions regarding Z80 and eZ80Hi Guys, Maybe some of you could help me with these questions: I would like to know what is the actual file size limit that can be used by z80 …

    ... that can be used by z80 (including bank switching), If there ... the video output resolution of z80 and ez80?

    E ... .g. or even higher using z80 or ez80 and what would ... rate of that machine for Z80 and eZ80 (50Mhz model)?
    jungleston jungleston October 2015 Hardware
  • Help understanding the Z80.So I have a Z80 CPU and a 32k ram chip. I understand how they connect. (Data and address busses, chip select etc.) But how would i input information…

    So I have a Z80 CPU and a 32k ram ... data bus. What pecies of hardware do I need to use ... . And the books about the z80 kinda droan on and difficult ...
    KipperKlank KipperKlank March 2017 Hardware
  • printing text on HP-GL plotters through RS232 on AY-3-8912Hello, i don't know, if anyone is even interested in these things. But i do. I like printers, plotters and other devices which we can connected to…

    ... PC and testing on real hardware.

    Thanks to others ... with amazing speed 115200bps. Yes, Z80 can do it. On speed ... of course available. Feel free modify it and make it better ...
    cygnus cygnus August 2020 Software
  • Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…

    ... mode is not possiblebecause the Z80 CPU is too slow for ... , but I?m not a Z80 ace too. Anyway, I included ... you are reffering too, is Hardware Multicolour, and it is in ... to modify a Spectrum 48 to allow it to display this Hardware ...
    LCD LCD March 2003 Sinclair Miscellaneous
<1234567…34>

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  • How does the Z80 communicate with hardware?How does the Spectrum (or Z80) interact with other hardware devices? I think devices can communicate with the CPU through interrupts, but how can the…
  • A few hardware questions regarding Z80 and eZ80Hi Guys,<br /> <br /> Maybe some of you could help me with these questions:<br /> <br /> I would like to know what is the actual file size limit …
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