Assembly Language Only

1. Do the following problems:

a. The following instruction sequence multiplies the value in EAX by 3.

MOV EBX, EAX

SHL EAX, 1

ADD EAX, EBX

Write similar fragments of code that use Shift and Add instructions to efficiently multiply by 5, 7, 9 and 10. (32 BIT ONLY)

b. What are the values for EAX, SF, ZF after executing TEST EAX, 0004H, if EAX initially contained FA75H?

c. Write a code fragment to convert from Fahrenheit to a Celsius temperature, using the formula:

C = (5/9) * (F 32).

2. Do the following problems: 32 BIT ONLY

a. Write assembly code, using procedures, to find the sum and average of the values in a given array. Make sure to obey stack discipline.

b. Write assembly code to implement the following pseudo-code:

Count = 0;

Sum = 200;

While ((Count <= 100) or (Sum < 300))

{

Add Count to Sum;

Add 5 to Count;

}