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Richard Patel 2022-04-07 06:20:53 +02:00
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@ -46,3 +46,16 @@ The file [isa.yaml](./isa.yaml) contains a full definition of the PowerPC 750CL
It powers the disassembler, assembler, and Rust/Python bindings code analysis tools. It powers the disassembler, assembler, and Rust/Python bindings code analysis tools.
Similarly to LLVM TableGen, the program `ppc750cl-genisa` generates a Rust file implementing an instruction decoder. Similarly to LLVM TableGen, the program `ppc750cl-genisa` generates a Rust file implementing an instruction decoder.
### Safety & Correctness
- This project does not use `unsafe` Rust code outside of testing utils.
- The disassembler has been fuzzed over all ~4.29 billion possible instructions (via `ppc750cl-fuzz`).
- It is safe to run the disassembler over untrusted byte arrays.
- However no guarantees on correctness are made (yet). Expect bugs.
### Performance
- Performance isn't great but acceptable.
- Disassembling & printing: 600k insn/s (2.4 MB/s)
- Disassembling only: 6M insn/s (24 MB/s)