Integrate the multiplier and divider into the execution stage, pass RISCOF tests and hazard related tests. Refer to [planning doc](https://docs.google.com/document/d/1CQu_JJjPz5PRu1B-brvyxw2hyEvEOPxiWGP4TfWSsaY/edit?usp=sharing) for more details
Integrate the multiplier and divider into the execution stage, pass RISCOF tests and hazard related tests. Refer to planning doc for more details