Type INST = Loadi (RD, VAL)
|| Loadpc (RD)
|| Add (RD, R1, R2)
|| Sub (RD, R1, R2)
|| . . .
|| Bz (RA,RC)
|| MovToO (R1)
|| MovFromI (RD)
Decoded instructions
Type INST_D = Addd (RD, V1, V2) || ...
RD, RA, etc. are RNAME’s. V1, V2, etc. are values
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