| Following
Instructions |
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| v | The
control keeps track of where it is in the program |
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| using
a program counter or PC … a better name |
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| would
be “instruction pointer” |
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| v | The
control also fetches data and returns results to |
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| the
memory |
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| PC |
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| Fetch/Execute
Cycle |
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| • | Fetch Instruction From Memory At PC |
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| • | Decode The Instruction; PC ¬ PC+1 |
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| • | Get Data Needed For Instruction |
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| • | Execute (Perform) Instruction |
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| • | Return the Result to Memory |
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| Memory |
