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4 cards from this section. Quick, good the night before a test.
What are the three steps of the instruction cycle?
Think about the process followed by the CPU in executing instructions.
Define the term 'opcode'.
What component of an instruction tells the CPU what to do?
What are the three fundamental steps of the instruction cycle?
Think about the sequence in which the CPU processes instructions.
True or False: In immediate addressing, the operand is obtained from memory.
What is the nature of immediate addressing?
Explain how the instruction fetch phase would work if the PC points to an instruction stored at memory address 0040H. What components are involved?
Consider which registers are involved and their roles during the fetch phase.
Discuss the benefits and drawbacks of using indirect addressing mode compared to direct addressing mode.
Think about how each mode influences performance and memory management.
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