Homework 4: From Binary to Decimal and Back Again

Summary: In this assignment, you will futher your understanding of the various binary representations of integers. expressions.

Assigned: Monday, 3 February 2003.

Due: Friday, 7 February 2003.

Collaboration: You may discuss this assignment with anyone you wish. You may implement the work alone, in pairs, or in triplets.

Implementation Language: You must do this assignment in C.

Submitting Your Work: Type your work electronically and submit it via the ECA. If you can't get it to work, email me your source code.

Part One: Binary to Decimal

Write a program, b2d, that reads in a series of eight 0's and 1's, and interprets them as if they were

1. an unsigned integer;
2. a signed integer in signed magnitude format;
3. a signed integer in one's complement format;
4. a signed integer in two's complement format; and
5. a signed integer in excess 2⁷ format.

Part Two: Decimal to Binary

Write a program, d2b, that reads an integer in decimal format and prints it out in

1. 32 bit unsigned binary format (provided it is non-negative);
2. 32 bit signed magnitude format;
3. 32 bit one's complement format;
4. 32 bit two's complement format; and
5. excess 2³¹ format.