[RetroGameDeveloper]

Summary

• Decode bounded RNC method-1 containers with both CRC16 checks, and discover packed N64 program blocks without importing ordinary assets as code.
• Reconstruct packed code from linked output using a verified compression template; compare both the expanded analysis image and the original normalized cartridge.
• Reject incompatible template edits and unsupported expanded-image reconstruction instead of reporting an analysis-only export as an original-cartridge match.
• Make generated linker symbols valid when a segment's hexadecimal name starts with a digit.
• Document private expanded/original inputs and distinguish assembly fallbacks from C progress.

Verification

• 18 synthetic RNC/code-discovery tests pass, including literal boundaries, overlapping copies, checksum failures, limits, changed-literal reconstruction, incompatible edits, and preservation of rebuilt prefix bytes.
• Existing homemade N64 export/rebuild test passes, including a numeric segment name regression.
• uv run ruff check src tests projects passes.
• Local private-ROM analysis: independent decoder outputs agree, fresh automatic import discovers the packed program, and several hundred functions pass the unchanged linked-byte judge. No cartridge bytes, recovered source, disassembly, game names, or compiler binaries are included.

Full local cartridge verification passed: the exported tree selected 419 C functions and reconstructed the original normalized cartridge byte for byte, including the packed program. Remaining functions were assembly; this does not imply a complete decompilation. The generated-address regression also verifies that arbitrary unresolved names still fail to link.