ECET 330 WEEK 3 HOMEWORK

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ECET 330 Week 3 Homework

1. Write a program to clear Register B, and then add the number three to B seven times. Use the BNE instruction with DECA

2. Write a program to clear Register A, add five to Register A 10 times, and place the result in RAM Location $2000. Use a RAM location for holding the counter.

3. 

What is the size of each instruction? I. LDAA     #50 II. BEQ      there III. STAA    $2000 IV. DECB V. LDAB     0, X

4. Write the sequence of instructions to save Registers A, Y, and X in the Stack with the given order. Write the sequence of instructions to retrieve those values back.

Saving A, Y, and X in Stack:

1 __________

2 __________

3 __________


Retrieving values back:

1 __________

2 __________

3 __________

5. Show code for a nested loop to perform an action 1,000 times.