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2 cards from this section. Quick, good the night before a test.
What is the role of the Program Counter (PC) in instruction fetching?
Think about what directs the flow of instruction execution.
Define Immediate Addressing Mode.
Consider how the operand is accessed in this mode.
What is the maximum number of steps required for executing an instruction in Direct Addressing mode?
Remember to count the main phases involved.
Immediate Addressing provides the operand in the instruction itself. True or False?
Think about how and where the operand is specified.
Explain a situation in which immediate addressing might be insufficient and describe how a different addressing mode could address the limitation.
Think about dynamic changes to data versus fixed constants.
Draw a flowchart illustrating the steps in fetching an instruction using indirect addressing.
Visualize the process step-by-step; each step corresponds to fetching data.
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