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  • 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…

    ... aspects and conflates internal Z80 state with what's ... unable to find a reference as to how much ... when enabled NMIs are triggered by horizontal sync[/QUOTE]
    by the horizontal sync and ... code that told the Z80 to accept maskable interrupts ...
    Thommy Thommy September 2011 Hardware
  • Dead Spectrum SocietySo I'm getting back into real Sinclair computers rather than emulators. During the summer months I was lucky enough to buy a working ZX81 and was giv…

    ... home, would be a guide on how to repair differing ... a faulty DRAM chip by visual inspection of the ... address bus (probably caused by a faulty DRAM chip in ... but then hangs. ULA, Z80 and ROM seemed to be ... sentence). It called "Spectrum" by Ziga Ramsak, and you can ...
    mcleod_ideafix mcleod_ideafix October 2011 Hardware
  • I think i found a MIA Game - "E.T Adventure" Macronics Systems LimitedEvening all, I was cleaning up my spare bedroom last night and found some old ZX Spectrum games One of which is this one [IMG]http://hlouey.zenfol…

    ... recording software on your PC by hooking up a tape player ... having a go yourself, the guide is in the 'documentation' section ... stuff :) apologies for the PC reference above :)
    pigdog pigdog January 2012 MIA/STP/SDP
  • Willy's Guide to the GalaxyJust starting out, trying something a little different. [IMG]http://img.photobucket.com/albums/v627/DaRkSiDe74/WGttG-BabelFish.jpg[/IMG] The idea i…

    ... really disappointing. The sixth book, by a different author, was terrible ... of course to read the Guide's pages! Didn't like ... Marvin's voice was better (Alan Rickman is brilliant!).
    ewgf ewgf January 2012 New game ideas
  • SAGE gamebook project newsThat's the Spectrum Adventure Gamebook Enhancement, that is (for the time being, anyhow). I've updated the [url=http://www.users.globalnet.co.uk/~jg2…

    ... of which may be prohibited by inventory & statistical factors, ... combat results moderated by a random element, and a ... the substantial Blade! specification for reference, in which I catered ... I've been looking at Alan Tobias' text compression system ...
    Battle Bunny Battle Bunny February 2012 Announcements
  • Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…

    ... critically missing from the z80 environment side is sections ... e);

    -----translation by compiler-----

    ld ... hl),0 ; terminate token by overwriting delim char
    ... globally visible names. Reference to either of these ...
    Alcoholics Anonymous Alcoholics Anonymous March 2012 Development
  • Snapshots (SNA) -> Keeping the loading screen?I've seen quite a few Snapshots (SNA) that kind of hesitate on the loading screen prior to entering the game menu... I quite like this. Anyone know …

    ... easy to extend the format by adding sub-blocks. Older programs ... the ones pointed above) and Z80 is that they are not ... "officially" added to the format by Jon Needle (the author of ... elsewhere, there is a common reference platform to er.. refer to ...
    Arjun Arjun April 2012 Emulators
  • In Java for ZXHi All I am glad to notify you that I have opened the sources of my J2Z80 translator (0.1 version) which allows to use Java toolchain to generate Z8…

    ... of the JNI call guide
    [QUOTE]
    Guide to work with ... BC pair will be ignored by the calling code.
    < ... .j2z80.api.additional.NeedsMemoryManager interface by your class and in the ... (which has ".a80",".asm" or ".z80" extension) file near the class ...
    Raydac Raydac June 2012 Development
  • 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…

    ... error when implementing a Z80 core. The user guide is misleading.

    It varies by model, but 8 pixels to ...
    chev chev July 2012 Emulators
  • ZXDev - powerful environment for development in four languages is ready for testingXDev/ZXDev is open and free set of compilers, additional tools, libraries and design patterns for target platform ZX Spectrum 48K in different progra…

    ... let use your ?the rough guide? to add to ZXDev documentation ... a call of .BAT file by pressing a button (likely Ctrl ... connect them, which is achieved by using .BAT files. This requires ... Basic (to write Basic loader), Z80 assembly language (to write efficient ...
    Oleg N. Cher Oleg N. Cher October 2012 Development
  • Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…

    ... www.worldofspectrum.org/faq/reference/48kreference.htm#Hardware"] ... /> BTW tests executed by Brazilian user Ricardo Michel using ... www.worldofspectrum.org/faq/reference/48kreference.htm#Hardware"] ... variation is simply caused by Z80 interrupts sometimes imposing ...
    Einar Saukas Einar Saukas November 2012 Emulators
  • Spectrum Playbasic EMULATORHi, Im new to the site and im writting a spectrum emulator in Playbasic :-o Its halfway complete. But i need help with emulating sound!? Anyone care…

    ... been written in it. A z80 emulation wouldn't be too ... user examples etc and no reference to the language. That a ... why it dosent get used by hobbyists much! The same could ... compiles or interprets - emulating the z80 will not be a problem ...
    Dunny Dunny November 2012 Emulators
  • 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…

    ... file produced by [i]snaptrace[/i] when run over my 'reference' snapshot ... routines are all jumped to by PUSHing the routine address on ... .

    One other thing: Z80 map files have bit K ... 8N+K, whereas those produced by [i]snaptrace[/i] have bit ...
    SkoolKid SkoolKid December 2012 Emulators
  • Spectranet updateHi all It's been a busy summer, and in any case I've wanted a little bit of a break from doing Speccy stuff to avoid it getting old (pun intended). …

    ... the available spectrum ide interfaces (by compiling with an appropriate binary ... calls and then complete a reference implementation which will probably be ... code is mostly all (bad) Z80 which is a bit impenetrable ...
    guesser guesser December 2012 Hardware
  • Newbie Spectrum developer advice ....Hi, Im new to the site and to spectrum developing - well, not quite, I wrote Spectrum programmes in Basic 30 years ago but then went off into the wo…

    ... file in the current directory. Z80 can also print to a ... ! & LOAD! the RAMdisk, or reference the RAM directly via PEEK ... , I saved 500 bytes just by naming all the common numeric ...
    Battle Bunny Battle Bunny January 2013 Development
  • The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…

    ... to blow up your Speccy by saying anything. :-)

    [ ... the Ramsoft DISCiPLE/+D technical guide as being "ext. select (?)", and ... that "ext. select (?)" is listed by Ramsoft for the +D, but ... how the various Spectrum and Z80 control lines work (mainly / ...
    zub zub February 2013 Hardware
  • The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…

    ... straight from the Z80, and reflects whether the Z80 was in the ... couldn't be paged in by trapping execution (assuming M1 is ... actually used by the device, which it should ... 've not come across any reference to the 128K doing anything ...
    zub zub February 2013 Hardware
  • The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…

    ... was caused by RamSoft's +D/DISCiPLE Technical Guide, of which ... also paged in whenever the Z80 fetches an
    instruction ... ?
    [*]Set by code in the Z80 emulation loop (the ... -time compilation, which I believe Z80 adopted — certainly, JPP did), ...
    zub zub February 2013 Hardware
  • Tracking down the last few bugsHi all. My emulator nears completion. Like many, I have tested against the FUSE suite of tests, and my emulator passes every one. However, I still h…

    ... =Philip Kendall;690247]
    The Z80 test suite, on the other ... be used by other emulators. If you've got a Z80 emulation ... ]http://www.worldofspectrum.org/faq/reference/z80reference.htm[/url]

    by Fuse test.
    Oibaf Oibaf March 2013 Emulators
  • I thought I'd give assembly a goAnd well being an absolute newb,I'm absolutely useless.I need your help. I thought I'd give this a go in zxspin [url]http://chuntey.wordpress.com/20…

    ... lessons nor a manual to guide me so I couldn't ... />
    Incidentally, it's written by Malcolm Evans of Trashman and ... done job - sort of a z80 emulator in a locked down ...
    Gedlion Gedlion March 2013 Sinclair Basic
  • Circumspect - A Spectrum Emulator for learningThis is a project that I have been playing around with for a while. It must be said, I tend to have problems getting things finished where hobbies a…

    ... might be interesting. The original reference model of ARM [URL=http ... just-in-time compiled code by decoding Z80 instructions and making calls ... script that is used by Fuse's Z80 core. I also ... the undocumented behaviour of the Z80, and in particular undocumented ...
    zub zub April 2013 Emulators
  • A new site for an old projectThe 'Interface 1bis' project site has been moved to: [url]https://sites.google.com/site/interface1bis/[/url] In fact, it's not only a simple relocati…

    ... the IF1bis to be recognised by the Mac at all. ... the QuickStart Guide if there was a step by step guide to ...
    Finally, whilst the QuickStart guide is well formatted and clearly ... the hardware and Operating System reference guides are much less readable ...
    Simon_Carr Simon_Carr July 2013 Announcements
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... incompetence of the existing PC Z80 cross-assemblers, none of which ... could reliably assemble standard Z80 sources let alone do anything ...
    kickaha kickaha September 2013 Development
  • ReRun - Speccy OutRun done better[IMG]http://img.photobucket.com/albums/v661/Swainy_boy/outrundelux_zpsb772e8cd.gif[/IMG] Any takers? Smaller sprites, faster game.

    ... used as examples to help guide my programming of the tool ... )... You'll also see AOUT.z80, the last version I have ... the screen was thrown together by the game engine, and contains ... and like inputing graphic data by hand/hex?!?!?!)...

    Anyhow ...
    kgmcneil kgmcneil September 2013 New game ideas
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... [*]Four channel sound possible by combining BEEP and SOUND commands ... Incorporates elements of SAM BASIC by Andy Wright, creator of BETA ... commands.
    [*]Quick start guide, including memory map, system ... divIDE and divMMC.
    [*]Z80 LDIR block copy: PUT ...
    chev chev October 2013 Sinclair Basic
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Latest Posts

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