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<1…13141516171819…34>
  • Z80 Processor Interupt helpHi everyone, Currently designing a Z80 computer and i need a little help with these interupts. If i have an I/O device that sends a pulse to the int…

    ... ,

    Currently designing a Z80 computer and i need a ... pin what exactly does the Z80 do? Does it store the ...
    Robin Robin January 2011 Hardware
  • Magic BlockMagic Block has been done by Dmitriy Bekkerman. This is clearly seen on a loading screen: [img]http://www.worldofspectrum.org/showscreen.cgi?screen=s…

    Magic Block has been done by Dmitriy Bekkerman.
    This is clearly seen on a loading screen:
    [img]http://www.worldofspectrum.org/showscreen.cgi?screen=screens/load/m/gif/MagicBlock.gif[/img]
    moroz1999 moroz1999 February 2011 Infoseek database
  • Request for help (Z80 gigascreen loader)Although I'd attempted to stick to keeping things simple in Image to ZX Spec now I've implemented Gigascreen (8x8 only) I've found the BASIC Gigascre…

    ... move stack below top 16k page
    20 LET Y = ... 32765,23: REM display page 5, put page 7 into top 16k ... REM load next pic into page 7
    340 POKE 23739 ... 32765,29: REM display page 7, put page 5 into top 16k ... REM load next pic into page 5
    390 POKE 23739 ...
    brownb2 brownb2 February 2011 Development
  • Fao dmboozefreekIf you've been following the news recently, you know that even Mr. DMBooze Freek's horoscope says he's cocky. However, you might not know that DMBooz…

    ... , it would fill an entire page and perhaps even run over ... in your pocket from a block away. Once that delicious aroma ...
    SkyCat SkyCat February 2011 Chit chat
  • Z80 disassembler C/C++ source codeHello, I just thought I might share the [URL="http://zxds.raxoft.cz/docs/z80d.cpp"]source code[/URL] of the Z80 disassembler I have written for [URL…

    ... "]source code[/URL] of the Z80 disassembler I have written for ... way of understanding how the Z80 CPU breaks the opcode sequences ...
    Patrik Rak Patrik Rak March 2011 Development
  • Using a Z80 CPU in a 48K Spectrum?Will a Z80 CPU (which I have) work well enough in a 48K Spectrum to give me an indication as to whether the Z80A CPU in there is duff? Thanks for re…

    Will a Z80 CPU (which I have) work well enough in a 48K Spectrum to give me an indication as to whether the Z80A CPU in there is duff?

    Thanks for reading - weathereye.
    weathereye weathereye March 2011 Hardware
  • What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…

    ... effects, I loaded each block into 8000-BFFF (page 2), and then ... just-loaded block into their right page. Then, the next block, and so ... used: for example, the block loaded at page 1 is 12K long ... 4K.
    The block to be loaded at page 7 is about ...
    mcleod_ideafix mcleod_ideafix March 2011 Development
  • Is ZX80 really "Z80 only"?The Spectrum has ULA to generate video display. Does the ZX 80 have any kind of processing chips apart from Z80? How is the video display generated o…

    The Spectrum has ULA to generate video display. Does the ZX 80 have any kind of processing chips apart from Z80? How is the video display generated on ZX80? How does it compare to Atari 2600's CPU + TIA combo?
    maiki maiki March 2011 Sinclair Miscellaneous
  • Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …

    ... 512kB / Pentagon 1024kB)
    + ram page 2 is mirrored to adress ... /> - ram page 5 is not mirrored with first videoram (16384-32767), it ... 's only classic ram page
    velesoft velesoft March 2011 Hardware
  • FW: Lerm stuff on WoS(originally received by e-mail, but I don't know the answers to most of the questions...) Lerm Tape Copier 4.2 [URL]http://www.worldofspectrum.org/i…

    ... the end of the 2nd block.
    I'm using Fuse ... not mentioned in TU9's page or in WoS at all ... not mentioned in TUB's page or in WoS at all ... not mentioned in TUC's page or in WoS at all ... not mentioned in TUD's page.
    Maybe it's the ...
    mheide mheide March 2011 Infoseek database
  • Screen Viewer: Speccy View 4SpeccyView (v4.0) Here is my new zx spectrum screen viewer, result of this weekend's work. Features: Loads: -Standard Screen Files (6912 byte raw …

    ... ram image, 48k/128k)
    -Z80 Files(RLE, v1.45,2 ... has a 6912 byte long block SV4 will pick it. About ... 's all.
    But sna/z80 and scr files will always ...
    Arda Arda April 2011 Announcements
  • 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 ...
    Yerzmyey Yerzmyey April 2011 Sinclair Miscellaneous
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... basic understanding of Z80 microprocessor architecture and Z80 assembly, but it ... of "World of Spectrum" page, but I'd like to ... the game data (.tzx, .z80, whatever). How should I handle ... detailed information about emulation of Z80 microprocessor/memory, they give ...
    PeterP PeterP April 2011 Emulators
  • OpenSE Software CompatibilityWith the earlier Open82 project a page was set up on Wikia ([url]http://scratchpad.wikia.com/wiki/Open82[/url]) with compatibility information on var…

    ... the earlier Open82 project a page was set up on Wikia ... (does LOAD "" CODE with a block Start: 65368 Length: 168 ), just ...
    Fred Fred May 2011 Sinclair Basic
  • up-to-date info on tape->PC conversions?I've been trying to find up-to-date information on tape->PC conversions and haven't had any luck so far. * I searched the Emulators forum for half a…

    ... /soundload.html]Sound Transfer[/url] page, but that seems to be ... old, as it only lists Z80 as being able to load ...
    Battle Bunny Battle Bunny July 2011 Emulators
  • Beatle Quest (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0005994"]Beatle Quest[/URL], please replace the existing "known erro…

    ... available at the game's page is corrupt and I recommend ... tape noise during digitalization, the block just before the loading screen ... recognized as a "Turbo Loader block inside a Softlock Group", but ...
    Einar Saukas Einar Saukas July 2011 Infoseek database
  • ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …

    ... , as it mounts a real Z80, 3 SRAM chips (512K, 128K ... cores can initialize a RAM block uploading a ".TAP" file and ... tape with a "tape player" block.

    Now, coming to ...
    adorigatti adorigatti July 2011 Hardware
  • The complete Contact Sam Cruise RAM disassemblyFrom the creator of the [url="http://pyskool.ca/disassemblies/skool_daze/"]Skool Daze[/url] and [url="http://pyskool.ca/disassemblies/back_to_skool/"…

    ... ', which means that every data block has a description that is ... . Besides poring over the fascinating Z80 instructions and DEFB statements and ...
    SkoolKid SkoolKid July 2011 Development
  • BT ordered to block pirate links"[B][COLOR="Blue"]A High Court judge has ruled that BT [British Telecom's internet service provider] must block access to a website which provides li…

    ... 's internet service provider] must block access to a website which ... ISP has been ordered to block access to such a site ... ) to order an ISP to block access to a site.
    ewgf ewgf July 2011 Chit chat
  • Elite mods[URL="http://www.iancgbell.clara.net/elite/z80/index.htm"]Ian Bell's Elite page[/URL] distributes a package with "Russian hacker Spectrum Elite varia…

    ... .net/elite/z80/index.htm"]Ian Bell's Elite page[/URL] distributes ...
    Einar Saukas Einar Saukas July 2011 Infoseek database
  • ZX80 Rom and Z80Can you pop a ZX81/TS1000 Z80 in the ZX80 as is and can you burn a rom to eprom and pop in? I'm watching an auction on Ebay and both Z80 and ROM are…

    Can you pop a ZX81/TS1000 Z80 in the ZX80 as is and can you burn a rom to eprom and pop in?

    I'm watching an auction on Ebay and both Z80 and ROM are missing.
    beanz beanz August 2011 Sinclair Miscellaneous
  • z80 Startuphi everyone, does the z80 upon start up reset all registers (including A) to 0? Many thanks, Robin

    hi everyone,

    does the z80 upon start up reset all registers (including A) to 0?
    Many thanks,
    Robin
    Robin Robin August 2011 Hardware
  • Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…

    ... ,

    Nearly made my z80 computer with 2K ROM 32K ...
    Robin Robin August 2011 Announcements
  • ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …

    ... equipped with a 20MHz CMOS Z80; the FPGA core can run ... look at the following Wiki page; there are reported also some ... /Alessandros+Spectrum+Emulator"]Z80p48K Home Page[/URL]

    If you ...
    adorigatti adorigatti August 2011 Hardware
  • Published Reviews of Programming the Z80 (Rodnay Zaks)I have started an article on Wikipedia for the book Programming the Z80 and would like if possible to reference any published reviews. Had a quick se…

    ... for the book Programming the Z80 and would like if possible ... a general text on the Z80 and not computer specific. What ...
    dmsmith dmsmith August 2011 Sinclair Miscellaneous
  • Z80 DOS Sorry this computer is too fast!I?ve tried the free Z80 Emulator v4.00 (DOS Version) downloaded from Gerton Lunters Homepage on my Intel Core2 Quad Q60 running at 2,40 GHz an it ju…

    I?ve tried the free Z80 Emulator v4.00 (DOS Version) ... states:

    ----- Snip -----
    Z80 - the Sinclair ZX Spectrum Emulator ... : Free registered version
    Type Z80 -? for help
    Sorry --- ... I want to use the Z80 DOS Emulator from a DOS ...
    Luzie Luzie August 2011 Emulators
  • Z80 sound enginesI'm looking for a decent sound engine to use in a Z80 program I'm writing, but I've no idea which is the best/fastest/easiest to use. I could do wit…

    ... engine to use in a Z80 program I'm writing, but ...
    polomint polomint September 2011 Development
  • Conversion of TAP/TZX/Z80 to Real Speccy TapesHey there. Not sure if this is the right place for this thread but hey ho. I've been playing about with converting Speccy tape images to WAV files …

    ... first using Z802TZX to convert Z80's, then, obviously, converting them ... converted loaded perfectly (using the Z80-TZX, then TZX-WAV method ...
    TechnicianSi TechnicianSi September 2011 Hardware
  • Gunhead[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0002178"]Gunhead[/URL] page currently contains just a snapshop .Z80 file. I suggest adding TZ…

    ... =0002178"]Gunhead[/URL] page currently contains just a snapshop .Z80 file.
    Einar Saukas Einar Saukas October 2011 Infoseek database
  • Barleywood Z80 Simulator LicenceHi All, Does anybody know if it is still possible to get a Licence for this Simulator? The reason I ask is that I'm currently using it to develop a…

    ... to develop a game in Z80 code and would like it ... years since I programmed in Z80 :p ).

    Ultimately, my ...
    Shando Shando October 2011 Development
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