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  • Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…

    ... a natural feature of the Z80, or are they instigated via ...
    takapa takapa June 2012 Development
  • Known Z80 M1 problems?I got an email yesterday from someone asking for a Z80 without the M1 problem. I only know about the fanout problem that many Z80's are suffering of…

    ... from someone asking for a Z80 without the M1 problem.
    Z80's are suffering off, causing ... ' a ZX Spectrum with a Z80 which has this M1 problem ...
    bverstee bverstee June 2012 Hardware
  • ZXTune - ZX Music playerHello, all! I am glad to announce my project on WoS! It's ZXTune - advanced ZX Music spectrum player and ripper. Here are some of the advantages of …

    ... formats), STP, TXT (VortexTracker intermediate format), TS (TurboSound, also in PT3 ... is available due to any z80 emulation absence: ChipTracker, DigitalMusicMaker, DigitalStudio ... ) or save them in native format.
    * [b]It has commandline ...
    Vitamin Vitamin July 2012 Announcements
  • Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…

    ... with another useless project: new Z80 emulation core written in pure ... , i can't test FUSE z80 core, but i think that ... /> also, zymosis passes all FUSE z80 tests (i'll try to ...
    Ketmar Ketmar July 2012 Emulators
  • Moar TR-DOS to tape conversions!I have posted three lame disk-to-tape conversions through snapshotting before, now (I guess) it's time to bring the rest of my complete collection he…

    ... collection here.

    The format of the uploaded archives' names ... normal loading speed and the Z80 snapshot before its' conversion.
    Crash Nicker Crash Nicker August 2012 Games
  • Interview with Steve Wetherill (Odin)Hi you all!!! Here is the interview done to STEVE WETHERILL (Nodes of Yesod, Robin of The Wood, Arc of Yesod, Heartland... ?Odin!) and published at […

    ... it here in its original format and language. Hope you enjoy ... 480Z (on which I learned Z80 assembly language), and the Cyber ... BBC Model B computers, with Z80 second processors running CPM. We ...
    jmvbok jmvbok August 2012 Sinclair Miscellaneous
  • redirecting Z80 sub-routine CALLsI'm working on changing a TR-DOS disk program to work from standard +128k tape and thought that rather than painstakingly working through the code ma…

    ... way to code this in Z80 assembler to work automatically, or ...
    Battle Bunny Battle Bunny August 2012 Development
  • z80 Code Profiling (RESOLVED)Hi All, Just a quick question to ask if there is any way of profiling z80 Code for the Speccy??? I'm trying to write a piece of software and I curr…

    ... is any way of profiling z80 Code for the Speccy???
    Shando Shando August 2012 Development
  • Replaced Z80 now a very dark screen!Today I dag out an old issue 3 that ive known for a long time has a faulty Z80 (M1 line) so I heat gunned it out, socketed it and replaced it with a …

    ... long time has a faulty Z80 (M1 line) so I heat ...
    Macc Macc September 2012 Hardware
  • Excel -> OpenOffice Z80 spreadsheet problemI tried transferring my [url=http://www.users.globalnet.co.uk/~jg27paw4/pourri/z80times.zip]Z80TIMES[/url] spreadsheet from Excel to OpenOffice the o…

    ... correct, as it looks up Z80 command timings from Einar's ...
    Battle Bunny Battle Bunny September 2012 Chit chat
  • Possible TZX of City Connection?After a long time there is only a .Z80 file of this game for 48k version (only??? If it appears on the menu screen alongside the game title, it seems…

    ... time there is only a .Z80 file of this game for ... upload it only in this format or was intended to send ...
    Neil Parsons Neil Parsons October 2012 MIA/STP/SDP
  • Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…

    ... ://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PSC-New-Sinclair-ZX81 ...
    pkersey pkersey October 2012 Hardware
  • Linux Format magazine: Raspberry Pi running FUSE inside a speccy caseIn this month's Linux Format magazine, they put a Raspberry Pi running FUSE inside a speccy case: [url]http://www.tuxradar.com/content/linux-format-1…

    In this month's Linux Format magazine, they put a Raspberry ... ://www.tuxradar.com/content/linux-format-164-sale-today-linux-cern ...
    Daren Daren October 2012 Emulators
  • SkoolKit 3.2SkoolKit - the suite of utilities for creating disassemblies of Spectrum games in HTML format (I say 'the' because I don't know of any others) - has …

    ... of Spectrum games in HTML format (I say 'the' because I ... snapshots (all sizes) and 128K Z80 snapshots
    [/list]

    SkoolKid SkoolKid November 2012 Development
  • 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…

    ... which current ones in the Z80 set would you replace?
    R-Tape R-Tape November 2012 Development
  • What's the correct Spectrum colour palette?Prompted by the recent SCR-to-GIF conversion thread, I was pondering writing one in Z80 assembler. As I did a LZW compression routine a while ago tha…

    ... one in Z80 assembler. As I did a LZW compression routine a ...
    Battle Bunny Battle Bunny November 2012 Development
  • Adventure Skabet.z80Skabet.z80 (from Wos Archive) will not load.... Am I wrong ?

    Skabet.z80 (from Wos Archive) will not load....
    Am I wrong ?
    Tommy F-H Tommy F-H November 2012 Infoseek database
  • Code execution logging/profilingAs revealed in [url="http://www.worldofspectrum.org/forums/showthread.php?t=41666"]this thread[/url], I'm adding support for reading code execution l…

    ... Fuse's profiler output, and Z80's 'map' files. Are there ... documentation on the log/profile format (in case it's not ...
    SkoolKid SkoolKid November 2012 Emulators
  • New Z80 CPU emulation testerI have finally wrapped up the new [URL="http://zxds.raxoft.cz/taps/misc/z80test-1.0.zip"]Z80 tester package[/URL] I have previously announced in [URL…

    ... /misc/z80test-1.0.zip"]Z80 tester package[/URL] I have ...
    Patrik Rak Patrik Rak December 2012 Emulators
  • Spectrum +3 cannot formatGot myself a new spectrum +3 replaced the belt in the drive I have tons of AMSOFT disks (used with amstrad), so, i tried using them in the drive and …

    ... problems.
    Basically, i cannot format any disk.

    Two ... media"
    the do
    format "a:"
    and it formats ... "
    try to reformat:
    format "a:"
    and receive "no ... /> If it try to format it:
    format "a:"
    it goes ...
    ArtemKuchin ArtemKuchin December 2012 Hardware
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... planning to work on data compression. Although I quickly changed to ... ") algorithm, using a data format very similar to Bitbuster. In ... always find the best data compression) and nearly instantaneous on ... [B]"ZX7"[/B] uses LZ77 compression only. In practice, its " ...
    Einar Saukas Einar Saukas December 2012 Brand new software
  • CSW file formatHi, i can't google any reasonable description of CSW file format. Can anyone point me to right place ?

    Hi, i can't google any reasonable description of CSW file format. Can anyone point me to right place ?
    catmeows catmeows January 2013 Emulators
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... -Spectrum screen to significantly improve compression.

    The ... routines for ZX-Spectrum screen compression.

    For instance ... way to understand the new format is to visualize it. ... br />
    The RCS format reorganizes the data as follows ...
    Einar Saukas Einar Saukas January 2013 Development
  • Fastest Z80?Hi , Could somebody explain more about the Kawasaki Z80 33 MHz to me? Is it fully backwards binary compatible with older Z80s and could it be used a…

    ... explain more about the Kawasaki Z80 33 MHz to me? Is ... only find this:

    Z80
    ? 8-bit microprocessor
    Rebelstar Rebelstar January 2013 Hardware
  • Which type of Z80 cpu to use with ZX 48?Which type of Z80 cpu can I use with ZX 48? Only the 4 MHz cpu's or some with more MHz? Did not know if a 6 MHz cpu runs in a ZX 48 with 4 MHz. Mic…

    Which type of Z80 cpu can I use with ZX 48? Only the 4 MHz cpu's or some with more MHz? Did not know if a 6 MHz cpu runs in a ZX 48 with 4 MHz.


    Micky
    -Micky -Micky January 2013 Hardware
  • Compiling Lisp to Z80.I am doing some thought experiments on this. Here is an example of a Lisp program. It adds two numbers together. [code] (define (add x y) (if (= …

    ... code translated by me to Z80 (there could well be many ... , I've not done much Z80 before at all so bear ...
    wilsonsamm wilsonsamm January 2013 Chit chat
  • 128K Toastrack - bad Z80?My 128K Toastrack works fine, but if I try to use divIDE or M1/128 it does not work. divIDE does not show the boot screen and in both if I push the N…

    My 128K Toastrack works fine, but if I try to use divIDE or M1/128 it does not work.
    divIDE does not show the boot screen and in both if I push the NMI button, the Spectrum resets.
    Is a bad Z80 CPU?
    My soldering skills are so bad. :(
    Turrican Turrican February 2013 Hardware
  • maximum addressable RAM for a Z80 using bank switching?What is the maximum addressable RAM for a Z80 using bank switching? The Enterprise64 home computer could address up to 4MB, is this the limit for a …

    ... maximum addressable RAM for a Z80 using bank switching?
    ... this the limit for a Z80?

    A ... address lines from the Z80 are used to select ... bits come directly from the Z80 address bus.[2] Effectively ... address space of the Z80 processor is divided into ...
    Rebelstar Rebelstar February 2013 Hardware
  • TommyGun with AGDHi everyone, I have been working with Jonathan to incorporate his excellent Arcade Game Designer utility into TommyGun. Jonathan has created a compi…

    ... AGD scripting language that generates Z80 code and I have added ... the existing files for the format.
    Also please share any ...
    Kiwi Kiwi February 2013 Development
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Latest Posts

  • Goodbye Z80
    zx1 on 7:11PM
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  • I bought an accoustic guitar. How do you play it?
    Maroc's Other Projection on 6:04PM
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  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
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