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<1234567…34>
  • Decimals, bcd etc in z80...Working bloody full-time on my Ragnar Revival game right now - just finished the basic sprite engine and before I go on coding the actual 3d engine (…

    ... behind blocks and other sprites), I need to ... and display decimal numbers in Z80, such as score ... and count with it z80-friendly, that is ... on handling and displaying decimals in z80?

    EDITED:< ... the basic arithmetic operations in BCD?"-section! Oh well ...
    ekoman ekoman July 2004 Development
  • Clear command in z80Hi, How would I replicate what the basic clear command does in z80? Do I need to change the stack pointer as well as setting ramtop (23730)? If I se…

    ... the basic clear command does in z80? Do I need to change ... (23730)? If I set ramtop in my code I get a ... if I return to basic in my code at that point ...
    Speccy_James Speccy_James February 2014 Development
  • Creating a linked list in Z80[FONT=Calibri][SIZE=3]I am using a circular buffer to store tiles to be displayed on the screen. Tiles only appear for a set period of time, so when …

    ... . Everything runs fast but something in the back of my head ... be a few live tiles in it. If I was writing ... this in Delphi or C# I?d ... anyone gone down this route in Z80 or can anyone provide some ...
    Mr Millside Mr Millside October 2014 Development
  • DEFFNder: a small library of BASIC functions written in Z80I've published a small library of 15 Sinclair BASIC functions written in Z80. I wrote it last year for a project of mine. Some of them are generic, s…

    ... 15 Sinclair BASIC functions written in Z80. I wrote it last year ... compiled code, ready to use (in TAP, DSK and MGT files ...
    programandala.net programandala.net August 2015 Sinclair Basic
  • Tutorial - full game from scratch in z80 assemblyI wrote a game from scratch to release in z80 assembly and wrote it down in tutorial form. Target is basically 48k speccy with the AY chip, or 128k s…

    ... game from scratch to release in z80 assembly and wrote it down ... in tutorial form. Target is basically ... at http://iki.fi/sol/z80
    Sol_HSA Sol_HSA May 2021 Development
  • First steps in Z80 machine codeI never got into machine code much back when I had a speccy, as I didn't have any development tools at the time. The only machine code I'd previousl…

    ... I'd previously done in the past was 6502 ... url]

    pactest3.z80 is the emulator snapshot and ... learning the basics of Z80 machine code, seems like ... is maybe get some 16x16 sprites going, and I also ... that's actually interesting in the long term future, ...
    Digital Prawn Digital Prawn July 2007 Development
  • A bug in Z80 V4.00Yes, from what I've heard, this emu has plenty of bugs (though I've never heard what they actually are), but this one is my contribution to the bug l…

    ... list. :)

    In a DOS prompt, use the ... ]

    Within Z80, in the "Load Spectrum snapshot" window ... the virtual drive (Z: in the above example).
    ... that since you're in the root directory of ... (even though you're in a subdirectory of the ...
    robert@fm robert@fm September 2004 Emulators
  • Turning .src files in z80 source code into .tap files.Does anyone know how I might go about turning z80 source code in 5 .src files into a .tap or .tzx file so that I can play it into my Spectrum +3? …

    ... might go about turning z80 source code in 5 .src files into ... don't really have skills in this area.

    I ...
    matalog matalog March 2016 Development
  • Need an emulator for Z80 formatHi, my name is Yuri and like you I love Spectrum games even though they're so old now. Some games are in Z80 format which Spectaculator can't run. …

    Hi, my name is Yuri and like you I love Spectrum games even though they're so old now.

    Some games are in Z80 format which Spectaculator can't run.

    So what's the best z80 format emulator?

    Thanks
    Vortexrider Vortexrider April 2003 Emulators
  • Z80 coders compoIf you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url]

    If you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url]
    Mac Buster Mac Buster November 2003 Development
  • simple z80 rom for test my emulatorHi there! Does anyone here have a very simple rom(in Z80 format) for testing my emulator. I need a very simple one that implements few opcodes and po…

    Hi there!
    Does anyone here have a very simple rom(in Z80 format) for testing my emulator. I need a very simple one that implements few opcodes and possible show a simple graphics.
    luisoft luisoft April 2004 Emulators
  • Char Based SpritesI've been looking at Rob's assembly example for character-based sprites in the other thread with interest. However, I find I'm not following it very …

    ... assembly example for character-based sprites in the other thread with interest ... a clue how character-based sprites are supposed to work.
    Lee Tonks Lee Tonks September 2004 Development
  • Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…

    ... was 16k, and yet the sprites were impressively fast.

    sprites so quickly and relatively flicker ...
    robpearmain robpearmain September 2004 Development
  • Wide sprites in SP1 + Z88DKThe calls to sp1_CreateSpr(); and sp1_AddColSpr(); seems to have changed. Could someone please offer help in how to create a wide (wider than 16 pix…

    The calls to sp1_CreateSpr(); and sp1_AddColSpr(); seems to have changed.

    Could someone please offer help in how to create a wide (wider than 16 pixels) sprite (preferably starting from SevenuP) using Z88DK and SP1.
    liftarn liftarn May 2006 Development
  • Which games would sell were it not for the Movie Tie-in?I was watching TV, whistfully, one evening when an advert came on for a game based on that god-awful film 'Eragon'. It had massive blocky sprites (P…

    ... '. It had massive blocky sprites (Possibly imported from a BBC ... just had non-descript sprites in them and no movie/ ... TV story line tie-in?

    Like, ... pretend to be 'Arnie' in the jungle and were ... who brings my post in a rusty blue citroen ...
    nuttyfox nuttyfox December 2006 Games
  • Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…

    ... [*]Loads 48K and 128K snapshots in .Z80/.SNA format
    [*]Extends ... tasks are retained in the built-in RAM and are ... /> [*]Save 48K snapshots in standard .Z80 format
    [*]Disks/ ... [*]Screenshot and POKE facilities in Task Manager
    [*]Microdrive ...
    glancaster glancaster January 2007 Hardware
  • Palmtop BV 1.1 (Windows CE) and Z80 formatHi, I have Palmtop BV 1.1 running on my HandHeld Windows CE device. Problem is, it only seems to handle the Z80 format. I have hundreds of TAP games…

    ... only seems to handle the Z80 format. I have hundreds of ... a good list of games in Z80 format? Many of the ones ... I want are not listed in WOS!

    Kindest regards ...
    Adam Ant Adam Ant April 2007 Emulators
  • Z80 gamesHello, I am looking for the following in Z80 format... The Great Escape (best game ever made!) Run the Gauntlet Microprose Soccer Football Manager …

    ... am looking for the following in Z80 format...

    The Great ...
    Adam Ant Adam Ant April 2007 Games
  • Just wrote my first useful working Speccy BASIC program in years...A nice UK National Lottery number generator. And not just any lotto number generator either. This one generates 8 lines of 6 numbers without replace…

    ... There was a story in the paper about somebody ... out of a hat in batches of 6). Apparently ... to implement this program in that language. Now that ... I've succeeded in Speccy BASIC, I think ... I'm learning Z80 assembler too. Another project in Z80! :D
    ...
    BigBadMick BigBadMick November 2008 Development
  • Hidden routine in loading screenAs discussed in another thread, the loading screen for [B]Back To Skool[/B] seems to have a hidden routine (in blue INK and PAPER). It would be inter…

    As discussed in another thread, the loading screen ... to have a hidden routine (in blue INK and PAPER). It ... be interesting if someone skilled in Z80 assembly could take a look ...
    Rickard Rickard August 2009 Development
  • Extended memory and SNApshots in emulatorsExist any snapshot fileformat that support extended memory for ZX (clones) ? I see only Z80 fileformat with 48/128 and 256kB(ZS Scorpion 256) support…

    ... add new computer types to Z80 fileformat.

    [ ... [/url]

    Z80 contain one byte for set ... ZX Emulator "Z80 STEALTH" support save extra memory in Z80 files (contain ... added new computer types in Z80 format) ...
    velesoft velesoft August 2009 Emulators
  • Audio Output Filtering in EmulatorsI am messing around with various beeper-related code at the moment and have a question related to the audio output from emulators... I've written s…

    ... unwanted high-frequency scratchy harmonics. In fact, it sounds exactly the ... />
    Creating the same sounds in z80 asm running on SpecEmu or ...
    ccowley ccowley March 2010 Emulators
  • Macros in Z80 assemblerI don't know if the title of this post is good, so let me explain what I mean If have for example code [SIZE="1"]LDI LDI LDI LDI LDI[/SIZE] I can…

    ... can write instead (at least in Sjasm assembler)

    [SIZE ... be replaced by 5 LDI in assembled binary.

    But ... it possible to write it in some shortened notation using some ...
    Ralf Ralf January 2011 Development
  • 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…

    ... it to develop a game in Z80 code and would like it ... 30 years since I programmed in Z80 :p ).

    Ultimately, my ...
    Shando Shando October 2011 Development
  • 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…

    ... determine what sectors are read in where and when and the ... of the disk read calls in those code blocks it would ... any way to code this in Z80 assembler to work automatically, or ...
    Battle Bunny Battle Bunny August 2012 Development
  • Loading .z80 filesHi, I have a +3 with MF3, but the tape player I bought doesn't output a loud enough signal to be heard by my Spectrum. Of late, I've been loading .…

    ... playing several of the games in the archives here at WoS ... also got a few games in .z80 format (these are snapshots, I ... , though hopefully I can run .z80 directly from my CF card ... in the meantime is there perhaps something similar to "playtzx" for .z80 ...
    gutted gutted January 2013 Games
  • How to load a +3 dos file from disk to memory in z80Hi all again, Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination? Thanks.

    Hi all again,

    Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination?

    Thanks.
    Speccy_James Speccy_James February 2014 Development
  • Multiply by 48Is there a 'cheat' to multiply by 48 in Z80? I have a table of sprites 48 bytes each entry, and I want to be able to offset my pointer with a simpl…

    ... by 48 in Z80?

    I have a table of sprites 48 ... 's a good little routine in the Zak's book but ...
    Atari_Jetman Atari_Jetman March 2014 Development
  • Drawing some spritesI figured I want to draw some sprites. My target was to do a 16x16 masked sprite. There's no clearing here, just drawing the sprites. My first ite…

    ... clearing here, just drawing the sprites.

    My first ... assembly, and got to 6 sprites in a frame. Unrolling the ...
    Result was whopping 26 sprites per frame. On average. Since ... baked in, there will be no shared code between sprites. Third ...
    Sol_HSA Sol_HSA November 2015 Development
  • P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…

    ... CPU @ 9Mhz, generic CPU
    Z80 @ 4Mhz, for sound

    sprites in black and white (without color ... This is a BIG project, in terms of Bitmaps and Graphics ... someone to tackle graphics and sprites/animations, so that I ...
    RMartins RMartins June 2016 Development
<1234567…34>

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