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0 pointsworewood5y ago0 comments

> However the previous cpu emulator apparently emitted .Net byte code and used RyuJIT (the .Net jit) to emit the final native code.

This seems like a good use case for using .Net. Why did they move away from it?

0 comments

astrange5y ago

The .NET and Java VMs probably aren't optimized for the incoming bytecode also being JIT generated, never needing to allocate memory, wanting to be register-based, etc.

Also, I haven't tried JITting them but I've always found their bytecodes to be pretty inexpressive compared to a real CPU (or even LLVM).

j / k navigate · click thread line to collapse

0 pointsworewood5y ago0 comments

> However the previous cpu emulator apparently emitted .Net byte code and used RyuJIT (the .Net jit) to emit the final native code.

This seems like a good use case for using .Net. Why did they move away from it?

0 comments

astrange5y ago

The .NET and Java VMs probably aren't optimized for the incoming bytecode also being JIT generated, never needing to allocate memory, wanting to be register-based, etc.

Also, I haven't tried JITting them but I've always found their bytecodes to be pretty inexpressive compared to a real CPU (or even LLVM).

j / k navigate · click thread line to collapse