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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the result of ADD A, R0 when A = 05H and R0 = 03H?
💡 Hint: Consider simple addition.
Question 2
Easy
What does INC A do if A = 0AH?
💡 Hint: Think about incrementing a number by 1.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the ADD instruction do in the context of the 8051?
- Subtracts values
- Adds values
- Multiplies values
💡 Hint: Consider what happens to A.
Question 2
True or False? The SUBB instruction is used for addition.
- True
- False
💡 Hint: Remember the operation it represents.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have A = 0AH and R0 = F0H. Execute two operations: ADD A, R0 and then SUBB A, #01H. What are the final values in A and the relevant flags?
💡 Hint: Track any carry or overflow when dealing with F0H.
Question 2
Using MUL and DA, illustrate how to multiply A = 05H and B = 03H, followed by what happens if you add a number that requires a BCD adjustment.
💡 Hint: Pay attention to how products relate in binary and BCD formats.
Challenge and get performance evaluation