Practice - Instructions for Adding and Subtracting Registers
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Practice Questions
Test your understanding with targeted questions
What does the SUB instruction do?
💡 Hint: Think about what happens to the value in the AC.
Describe what happens when we execute the ADD instruction.
💡 Hint: Remember the role of the Accumulator in arithmetic operations.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the ADD operation do in the context of registers?
💡 Hint: Consider what you're doing in basic arithmetic.
True or False: The value of the Accumulator remains unchanged after executing a SUB instruction.
💡 Hint: Remember what the instruction does to the current value.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design an efficient program using the defined instructions to compute the average score of five subjects without using direct memory manipulation.
💡 Hint: You have to keep track of how many scores you have processed to avoid over-counting.
Discuss how an increase in register count would affect the opcode design for an instruction set.
💡 Hint: Think about how more registers can make the operations complex.
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