Lab 4- Arithmetic and Logic Unit

Design guidelines for lab 4 .

February 15, 2002

The goal for this lab is to design an arithmetic and logic unit that has 6 operations: NOT, ROL, LOR, XOR, AND, ADD. We did not encounter any problems with creation of this device. There was a lot of wiring to make, and it became quite tedious. Afterwards, we utilized bus paths for more efficient and cleaner design. This made our component easier to modify.

March 1, 2002- Modification

We removed the Z register from our original design. Initially, the Z register was supposed to hold the result of the computation. We realized that we could do without it, since the result can be stored internally within the ALU. All we needed was to have a control that would release the results to the bus. This control would be SEND_Z.

Wiring was again cleaned up to make design simpler and easier to modify. Using bus breakouts to simplify design will now be utilized in all future devices.

Click for larger image