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4 cards from this section. Quick, good the night before a test.
What is the function of the Program Counter?
Think about what directs the CPU's instruction flow.
Define the Instruction Register.
It's where the instruction goes before it's decoded and executed.
What is the purpose of the opcode in an instruction?
Reflect on what the CPU looks for in an instruction.
True or False: The Instruction Register is the same as the Program Counter.
Consider the roles of each register within the CPU.
Design a CPU instruction set that implements immediate, direct, and indirect addressing modes. Give examples for each.
Remember to identify how each operand is provided in each addressing mode.
Create a flowchart showing the fetch-decode-execute cycle including the handling of interrupts.
Use clear symbols for processes and decision points.
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