Mic-1 ALU
https://users.cs.fiu.edu/~prabakar/cda4101/Common/notes/lecture16.html	gi:gating a register onto a bus

https://users.cs.fiu.edu/~prabakar/cda4101/Common/notes/lecture09.html

Memory Bus Pipelining example:	https://users.cs.fiu.edu/~prabakar/cda4101/Common/notes/lecture11.html


