CPU16 Design

Tom Kelliher, CS 240

May 1, 2006

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Last assignment due in one week.

Assignment

From Last Time

Multiplier design.

Outline

1. Definition of instruction set.

2. Layout of instruction formats and consideration of design trade-offs.

Coming Up

Continued CPU16 design.

Instruction Set Definition

Our starting point:

1. add, sub.

2. and, or, nor.

3. slt, beq

4. lw, sw

5. j

Instruction Format Definition

Starting from the standard three formats (R-, I-, and J-format), what alternatives do we have and what are the trade-offs?

Tom Kelliher