Forked from Link.
I appreciate the open source repo from the UCB.
Please feel free to check my answers. I'd be glad to hear your advice. :)
Lab04: RISC-V Functions & Pointers (Calling Convention).
caller: a reg, t reg, ra.
callee: saved reg, stack pointer.
Lab05: Logic Design (MUX, Shift Reg) by Logisim Evolution.