Spring 2002 CSCI 255 Practice Homework 7

This homework is not graded. It is practice for the 15 April quiz.

Problem 1

Do problem 2 of Quiz 4.

Problem 2

Write a trap routine that reads a single character typed on the keyboard. If that character is an upper-case letter, it is echoed to the CRT. Otherwise, it is ignored.

Your program should use the keyboard and CRT device registers.