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rea/src/dotnet
Angelo PerezandClaude Fable 5.1 e46bed73f1 fix(managed): decode the CIL no. prefix (#2241)
The CIL opcode table held five of the six ECMA-335 prefix opcodes and
omitted no. (FE 19 <unsigned int8>, III.2.2). A method body using it was
reported as malformed with "Unsupported CIL opcode 0xfe19", losing its
instruction counts and normalized IL digest.

Decode it with its one-byte check mask and treat it as a prefix, so it
shares an instruction boundary with the opcode it modifies.


Claude-Session: https://claude.ai/code/session_012pRGskbPGjT444CgJfuhhj

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-13 21:16:00 +08:00
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