Practice Existing Instructions And New Instruction Sub M (16.1.1) - Instruction Design

Practice: Existing Instructions and New Instruction SUB M

Lesson 16.1.1Instruction Design

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9 questions

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4 cards from this section. Quick, good the night before a test.
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6 sample questions

Question 1.
What does the SUB M instruction do?
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Think about what subtracting means in arithmetic.
Question 2.
What is the purpose of an accumulator?
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Consider its role in math operations.
3Question 3.
What does the SUB M instruction perform?
- Load memory
- Subtract memory from Accumulator
- Add Accumulator
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Think about subtraction in math.
4Question 4.
True or False: Conditional Jump Instructions like JZ and JNZ allow program redirection based on the ALU's results.
- True
- False
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Consider the relationship between calculations and instruction execution.
Question 5.
Create a sequence of instructions to compute the sum of five specific numbers stored in memory using only given instructions.
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Plan a sequence that helps you access the numbers and keep track of the total efficiently.
Question 6.
Discuss the implications of having only 4 bits for opcodes in cycling through more than 16 instructions.
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Think about how complex tasks would be accomplished with limited instructions.

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