Register to reply

Heeeeeelp please easy for u?

by luizza
Tags: heeeeeelp
Share this thread:
Apr22-05, 10:29 AM
P: 1
Digital Logic Design Lab

(do this project with circuit maker design (7485 comparator))

Design 8 bit adder/subtractor (a+b, or a-b) with following:
1. Inputs: tow operands [A,B](8-bit each),
load(1-load new data,0-perform operation).

2. Outputs: 9 - bit (8-bit will be stored in A again).

3. Modes of operations:

a. Check if B is 0, then the output will be A.
b. Check if A is 0, then the output will be B OR B' depend
on the operation.
c. Otherwise , perform the addition or subtraction.

4. Display result on two seven segment displays + 1 LED.

please if u know the answer help me and i will be thankfull

i do it dut there is a problem and this is my attachment please do it for me??
Phys.Org News Partner Engineering news on
Catching grease to cut grill pollution
Researchers develop tool to predict the level of driver discomfort caused by LED lighting
New inexpensive and easy to implement computer software provides real-time and highly accurate data on traffic

Register to reply

Related Discussions
Easy Derivative - Not easy for me, though! Calculus & Beyond Homework 5
Guys, I have 4 easy questions. (probably easy to you) Introductory Physics Homework 32
Easy gauss' law question that I wanna make sure I didn't make too easy Advanced Physics Homework 0
Easy, easy question-please help... Set Theory, Logic, Probability, Statistics 1
Easy way out :> Introductory Physics Homework 4