[detrites]

Not sure if this was intended, but coming to this as someone vaguely aware of RISC-V, it's looking like a fantastic form of documentation for the ISA, that both describes and gives a way to play with it, but in an intuitive, even fun manner.

Obviously this works best for someone who already knows C - but, given it's C89 mitigates against this aspect somewhat.

[rowanG077]

A reference implementation would be in Verilog or VHDL.