What is This?

Sega Genesis/MegaDrive assembly code examples from articles on namelessalgorithm.com.

Prerequisites

1. Download:

   vasmm68k_mot_Win64 and vasmz80_std_Win64

   Extract and put vasmm68k_mot.exe and vasmz80_std.exe in bin/.

2. Open example dir and run assemble.bat.

3. Load ROM from roms/ in your favourite emulator.

4. The MAME Debug example requires Ruby.

Examples

• Very Minimal: Minimal Sega Genesis ROM. Article: 'SEGA Genesis: Building a ROM'

  

  Source code | Download ROM

• MAME Debug: MAME Debug example. Article: 'SEGA Genesis: Debugging'

  

  MAME label Ruby script

• Hello: Hello world text demo. Article: 'SEGA Genesis: Printing Text'

  

  Source code | Download ROM

• Framebuffer: Framebuffer rendering. Article: 'SEGA Genesis: Framebuffer Rendering'

  

  Source code | Download ROM

Copyright and License

All source code in this repository has the following copyright:

Copyright 2022 Nameless Algorithm
See https://namelessalgorithm.com/ for more information.

And the following license:

You may use this source code for any purpose. If you do so, please attribute
'Nameless Algorithm' in your source, or mention us in your game/demo credits.
Thank you.

Thanks

In no particular order:

• Matt Phillips for the BigEvilCorporation tutorials
• iwis for Plutiedev
• MarkeyJester for MC68000 tutorials
• Flint/DARKNESS for MC 680x0 Reference 1.1
• Alexey Melnikov/sorgelig for the MiSTer
• Gregory Estrade for the fpgagen Sega Genesis/MegaDrive FPGA core
• Mednafen Team for a great emulator
• Sonic Retro/Sega Retro Team for segaretro.org and the Sonic disassembly (s1disasm)
• Dr. Volker Barthelmann for vasm