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  • debuggingI have read a fair bit about z80 machine code and am ready to experiment using Tasm. One concern is how would you debug using this method of programm…

    ... /> [quote]
    As for open source... It's a good idea ... instead of rigging together a Z80 core from scratch...
    [/quote ... you've never debugged a Z80 core? It's a very ...
    Philip Kendall Philip Kendall May 2004 Development
  • SDP Project ExpandingHi folks, The next Vault update isn't going to see that many +3 disks, due to poor interest. However, I've still managed to source some disks for t…

    ... as a fan of open source this wont please you, sorry ... still games only available in .z80 etc. formats.

    In ...
    Fred Fred July 2004 MIA/STP/SDP
  • MC 101Hello Group Members: Can't spectrum MC be embedded in a BASIC program

    ... ]
    Indeed, SPIN assembler generates Z80 ML in a
    "1 ... ;REM" statement, using the following source.

    syntax:
    a ... ;STOP"
    d) assemble ASCII source
    e) RUN

    dalmudlee dalmudlee July 2004 Development
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    ... :

    1) a Z80 core. There's nothing fundamentally ... know how the Z80 works, [url="http://z80.info/zip/z80cpu_um ... http://z80.info/"]z80.info[/url]) is a pretty good reference source (although ... learned while writing Fuse's Z80 core... I strongly suggest ...
    Philip Kendall Philip Kendall September 2004 Development
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    ... table or any other basic z80 document. You'll likely need ... in.

    VBSpec's source code is not hard to ...
    Dunny Dunny September 2004 Development
  • ZX Spectrum on GBAHey guys could you do ourself a favor ? There s a tread on a Game Boy Advance site regarding what emulator for the GBA is mostly awaited. Could you g…

    ... the GBAemu forums that the z80 core emulation with support for ... willing to give away the source code to anybody interested in ...
    Arm73 Arm73 October 2004 Emulators
  • Zecut0r and ZAFA while ago (about 2 yrs)i took VbSpec and tried to port it to Delphi 6. Althought it was pretty weak, it. Meanwhile DelphiSpec 0.1 appeared and i wa…

    ... Toe . Source is found here : [url="http://z80.aopsnaj.ro ... tac-toe.zip"]http://z80.aopsnaj.ro/tic- ... here : [url="http://z80.aopsnaj.ro/tictactoe.sna.zip ... "]http://z80.aopsnaj.ro/tictactoe.sna ... found at [url="http://z80.aopsnaj.ro/zafb6.zip"]http ...
    zecut0r zecut0r October 2004 Emulators
  • is it easy to learn z80 machine codewell is it?

    ... since I did anything in Z80 - but would love to get ... touched was Simon Cookes QDOS source code - to modify it to ...
    DavidB DavidB October 2004 Development
  • Java EmulatorsOk, Im not having a good time of it here. Im trying to get a java emu on my site so people can play the games online. Ive tried Jasper Java Emu, and…

    ... />


    see the source for my Jasper demo
    Geoff Geoff December 2004 Emulators
  • Java EmulatorsOk, Im not having a good time of it here. Im trying to get a java emu on my site so people can play the games online. Ive tried Jasper Java Emu, and…

    ... />


    see the source for my Jasper demo
    mel the bell mel the bell December 2004 Emulators
  • spectrum disks for saleI have 296 titles on around 200 disks for sale. Offering them on here first before ebay gets them. Contact me at [email="cluncastle@hotmail.com"]clun…

    ... of the speccy people, the source info was from magazines and ... as MIA. I have a Z80 snapsnot of this game and ...
    The Master The Master December 2004 Sales
  • Hypersports problem - freezes before 1st event?I am using Fuse on Mac OSX, have tried a few of the available Hypersports in the archive now, but each one appears fine until I start the first event…

    ... /> If you're compiling from source, you can (bodge) fix this ... "tstates < 48" test in z80/z80.c:z80_interrupt() to (say) "tstates ...
    Philip Kendall Philip Kendall February 2005 Games
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... . You are lazy? send a Z80 or a SNA file ;)
    source I'm fine with it ...
    na_th_an na_th_an March 2005 Development
  • Installing Z88DK Z88DK INSTALLATION Z88DK is distributed in two parts. The first part is the platform independent bits (including source and z80 libraries) and th…

    ... during assembly
    Errors in source file ex1.c:
    File ...
    ;
    ; Reconstructed for the z80 Module Assembler
    ;
    ; Module ...
    na_th_an na_th_an April 2005 Development
  • Oft-asked questionI'm a C++ programmer wanting to learn z80 machine code. Where are the best tutorials/resources (if it's a book could you supply a pdf/txt maybe?)? A…

    [url="http://www.z80.info"]http://www.z80.info[/url]
    [url="http ... uses Z80 and this site is full of stuff with source code ...
    Fikee Fikee April 2005 Development
  • Speccy Game Source CodeIs there a way to look at the tape files or convert the tape files to read the source code? Also, is there an archive of source code for various old…

    ... of the original Ant Attack source code

    [url="http ... /> Lastly there are some good Z80 books by Games Programmers.
    Geoff Geoff May 2005 Games
  • HELP!! Advise needed ere pleaseHi all I own a PC running WinXP and a speccy 128k. Can I attach a 3.5" floppy to my speccy so I can copy my tzx files from my pc onto a blank disc a…

    ... except tape (or other audio source) because many games use their ... firmware, you can also load Z80 snapshots from DivIDE, which extends ...
    gasman gasman August 2005 Sinclair Miscellaneous
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... on your machine, download the source and try changing the bank ... , have you tried changing your Z80 or ULA or anything? Either ... fault (unlikely to be the Z80 but you never know).
    Spirantho Spirantho September 2005 Sinclair Miscellaneous
  • z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…

    ... .[/quote]
    can i see source? the way how is huffman ... off topic:
    C for Z80 is really strong thing (just ...
    Fikee Fikee October 2005 Development
  • z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…

    ... Ojala
    ;### Ported to Z80 by Jussi Pitk?nen
    Z80 port.
    ;###

    ... file.
    ;## In : HL = source address
    ;## DE = destination address ... los registros dobles del z80. En el Z80 ademas de AF, ...
    na_th_an na_th_an October 2005 Development
  • Spectrum emulator with Scale2x filterI was wondering what the Scale2x filter would look on Spectrum games. Is there an emulator that has this feature? Or any other filter like 2xSai. I t…

    ... . And don't forget Win Z80 :)
    Qaop - Java emulator has ... filter, which is an open source program. Take a look at ...
    Kano Kano November 2005 Emulators
  • A deeper exploration of the SpectrumI've been reading a lot of posts in the BASIC and development forums and they've really intrigued me. Although my knowledge of the deeper working of …

    ... ) then I'd recommend you source a copy of the Spectrum ... 've only really started with z80 asm just recently, and it ...
    Dunny Dunny November 2005 Sinclair Basic
  • Where do I begin to build an emulatorHi I would like to build a Spectrum emulator from scratch, the reason? well I'm curious, to see if I can =) I've successfully ported Pocketclive to X…

    ... also find there some source for a z80 cpu core, although personally ...
    icabod icabod January 2006 Emulators
  • Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …

    ... . Could you possible post the source code of the routine on ... ]

    As for the source code.. I'm not sure ... relevant bits, preferably in pure Z80 for ontopicness sake.

    TrueVideo TrueVideo March 2006 Development
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... , I already found that E-Z80 is your cross-assembler. (Though ... a targetting as a documentation source for the hardware? I wonder ... . Just look at popular "Undocumented Z80 Documented" - it is still on ...
    Vladimir Kladov Vladimir Kladov April 2006 Emulators
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... . And, at least 4 different Z80 clones found which gives different ... DAAfull test checking all 65535 source combinations of A and F ...
    Vladimir Kladov Vladimir Kladov April 2006 Emulators
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... ]And, at least 4 different Z80 clones found which gives different ... DAAfull test checking all 65535 source combinations of A and F ... of different software behaviours amongst Z80 chips manufactured by different companies ...
    Luca Luca April 2006 Emulators
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... designed to be cheap, the z80 was cheap, and things that ... produced from the same "VHDL source" licensed by Zilog to the ...
    Luca Luca April 2006 Emulators
  • z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…

    ... maybe I can add a source file with the same name ... the top 3 list of z80 machines to support. Its display ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • Basic or Machine code?Hopefully the correct area of the site to post this question. Anyways, I have got hold of several books on programming my spectrum, and I was wonderi…

    ... route into editing and writing Z80 machine code (on a Mac ... to use the BASIC and Z80 Assembly editors. You don't ... 're feeling brave, then the source code for BASin comes with ... to online (pdf or html) Z80 machine code books or example ...
    Dunny Dunny April 2006 Development
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  • 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
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