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It's possible to emulate. But not only. The main goal is to formalize the representations of the RISC-V instruction set (ISA), decoder, executor, and state machine. So it's more formal point of view for RISC-V ISA.

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> the RISC-V instruction set (ISA), decoder, executor, and state machine

So does this repo define these things as F# function and as a user I can import this repo as library and call those functions and my function call would directly run instructions on RISC-V processors, with no "middlewares" like operating system and such?

You can easily import and use specific functions for the decoder, or executor for specific ISA. Or even use the whole state machine. And this is represented by tests. Those. any single RISC-V architecture instruction, or an entire program. Because it can be used as a cpu emulator. Those. OS doesn't matter in this case. However, I draw your attention to the fact that this is only a processor, and not an emulation of the PC and its peripherals.

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