1. Midterm: Question 1 (35%) (30 minutes) Write an assembly program to draw a rectangle. – (5%) Show a message to ask for information of the rectangle – (5%) Read the width, height and coordinates of the upper left corner of the rectangle. – (5%) Draw the boundary (width = 1) of the rectangle with green color. – (5%) Fill the center with yellow color. – (5%) Press ‘q’ to quit the program and clear the screen. – (5%) Show your student ID at the end of the program. – (5%) Explain how you implement the program. – Example: Enter the information of the rectangle Width : 7 Height : 5 Upper left corner X coordinate: 5 Upper left corner Y coordinate: 10 (0, 0)X Y

2. Midterm: Question 2 (35%) (1.5 hours) The following is a program “P” written in C++. Assume no overflow. Write an assembly to perform what “P” does. (20%) void main () { unsigned int a[100]; int n; cout << “Please enter a number:” << endl; cin >> n; //ask for input for ( int i = 0; i < n; ++i ) { a[i] = rand() % n; // random generator cout << “a[i]:” << a[i] << endl; sum = evaluate( a[i] ) ; cout << “The result is:” << sum << endl; } for ( int i = 0; i < n; ++i ) cout << a[i] << “ “ << endl; } int evaluate( unsigned int m ) { If ( m ==0 ) return m; else return m*computeSum(m-1); } int computeSum ( unsigned int m ) { If ( m ==0 ) return m+1; else return m*m+computeSum( m-1 ); } Please enter a number: 3 a[0]: 1 The result is: 1 a[1]: 0 The result is: 0 a[2]: 2 The result is: 4 1 0 2 (10%)(5%)

3. Midterm: Question 3 (30%) Estimated time: One hour Write a program to move two characters horizontally. The screen dimension is 80x24 (width x height). The colors of the two characters are red and green, respectively. Initially: – (2%) the two characters are at (39, 12) and (38, 12). – (5%) the red character moves to the left side. – (2%) the green character moves to the right side. - (5%) If they hit the boundary of the window, reverse their movement direction. - (5%) If they hit each other, reverse their movement direction. The movement of each character has a delay. - (5%) Can be continue. - (2%) Press key ‘q’ to quit the program at any time and clear the screen. - (2%) Show your student ID at the end of the program. -(2%) Explain how you implement the program. Example: Enter the movement delay of the red character (ms): 500 Enter the movement delay of the green character (ms): 250 Snapshots direction