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Static analysis tool for ASM codebases. Builds call graphs, finds callers/callees, and identifies memory write locations.

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SKILL.md

Full skill instructions

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Scope

  • Static analysis of 65816 ASM.
  • Call hierarchy resolution (JSL, JSR, JML).
  • RAM usage tracking (STA, STX, STY).

Core Capabilities

1. Find Callers

Who calls a specific routine?

  • callers Link_Hurt -> Returns list of routines and file locations.

2. Find Writes

Who writes to a specific RAM address?

  • writes 7E0010 -> Returns routines that modify GameMode.

3. Graph Export

Generate a JSON call graph for visualization or LLM context.

  • graph --out codebase.json

Dependencies

  • Tool: ~/​src/​hobby/​yaze/​scripts/​ai/​code_graph.py.
  • Repo: ~/​src/​hobby/​oracle-of-secrets (or any ASM folder).

Example Prompts

  • "Who calls Link_ResetProperties?"
  • "Which routines write to the Ocarina flag at $7E0300?"
  • "Generate a call graph of the Music subsystem."

Limitations

  • Regex-based: Does not evaluate macros or conditional assembly (if).
  • Indirect Calls: Cannot resolve JSR ($0000,X).

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