NES Code Crash Course

• Presented at Fire & Ice RGX 2025

Building

• Simply run make
  • Requires make, ca65, and ld65 to be included in your PATH.
• Alternatively, run rebuild.bat on Windows or rebuild.sh on MacOS and Linux.
  • Requires ca65 and ld65 to be included in your PATH.

File Summary

• gamehunt2025.s
  • Complete source code in 6502 assembly.
• data.inc
  • Complete read-only data including colors, initial sprite state, links to nametables, and link to the pattern table.
• system.inc Canonical names for NES registers and sprite OAM data layout.
• nrom.cfg
  • Linker configuration for a basic NES NROM rom file.
• gamehunt2025.nes
  • Prebuilt rom file.