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Henrik RydgårdandClaude Sonnet 5
65495c76c0
MIPSTables.cpp has walked a tree of tables on every single interpreted instruction since forever, with a standing TODO asking for exactly this: "generate smart dispatcher functions from above tables instead of this slow method." GenerateInterpreterDispatch() does that - it walks the same tables MIPSGetInstruction() walks at runtime, but resolves the walk into a nested switch tree once, at generation time, with each leaf calling straight into the existing MIPSInt::Int_* handlers and returning that instruction's fixed cycle count. Anything not covered (invalid opcodes, and the handful of instructions with no interpreter implemented at all, e.g. tge/tlt/teq) falls back to the existing MIPSInterpret()/MIPSGetInstructionCycleEstimate() slow path, so the result is total over all 32-bit inputs, same as the table-walking path. Wired up via a new headless --generate-interpreter-dispatch flag, which prints the generated Core/MIPS/InterpreterDispatch.cpp source to stdout and exits. Also widens CmdLine.cpp's --help column formatting, which silently truncated any option name longer than 24 characters - the new option's name was the first to hit it. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019SKhm9wKEQzRUsx9mTrrtQ