arithmetic circuit design(예비)

소개글

arithmetic circuit design(예비)

목차

1. Objective

2. Theory

(1) 4-bit Adder / Subtracter

(2) 4-bit ALU

3. Reference

본문내용

1. Objective
Understand the expression of negative binary number and 4-bit adder/subtracter with verilog simulation and FPGA Kit. Based on what we`ve learned before, make ALU(Arithmetic Logic Unit) verilog code capable of 4-bit logic and arithmetic calculation. Then verify this with simulation and FPGA Kit.

2. Theory
(1) 4-bit Adder / Subtracter
The simplest adder is composed of half adder and full adder. But subtracter is exceptional. If we design the circuit which subtracts number just like we do, it needs extra circuit, which is undesirable. To solve this problem, adder/subtracter in digital circuit uses specific number. This is called two`s complement number. With this number, we can implement both adder and subtracter in one circuit.

참고 자료

- Contemporary Logic Design ( 2th Edition ), Randy H.Katz
- Wikipedia dictionary
- Naver 백과사전
- Fundamental of Logic Design ( 5th Edition ), Charles H. Roth jr