Project64 is a set of tools, skills, and an MCP to enable agentic Commodore 64 coding and debugging using the VICE emulator.
Skill Claude CodeCodex
Use when writing or debugging 6502 assembly for the Commodore 64 with ca65/ld65 via c64 build or c64 run. Covers the C64 program skeleton, the BASIC SYS stub, calling ROM routines, and 6502 gotchas.
Skill Claude CodeCodex
Use when a C64 program misbehaves at runtime — crashes, corruption, wrong values, dead input, visual glitches — and you need a procedure, not a guess. Symptom-indexed playbook of runtime debugging procedures using c64-tools.
Skill Claude CodeCodex
Use when developing, running, or debugging Commodore 64 software (Commodore BASIC or 6510/6502 assembly) on the VICE emulator with the c64 CLI or the c64-tools MCP server. Covers the build/run/observe/debug loop, the stopped-state discipline, C64 text encodings, graphics and sprites, and the memory map.
Skill Claude CodeCodex
Use when writing, building, or debugging a Commodore 64 cartridge — plain 8K/16K/Ultimax or bank-switched EasyFlash — with the c64 CLI or the c64-tools MCP server. Covers the two boot mechanisms (CBM80 vs the $FFFC reset vector), the memory modes, cart-native code in ROM, the EasyFlash banking discipline from…
Skill Claude CodeCodex
Use when a Commodore 64 program has to touch a disk while it runs — loading levels, music or graphics on demand, saving a high-score file, or streaming a data file byte by byte. Covers the KERNAL LOAD/SAVE and channel calls, device and secondary-address conventions, reading the DOS error channel, and the…