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3 Cards in this Set
- Front
- Back
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RISC |
-A limited number of instructions are available -An instruction performs a simple task -complex tasks can only be performed by combining a number of instructions -so a task may take a number of machine cycles -each instruction takes 1 cycle -fewer addressing modes -fewer instructions -one or more register sets |
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CISC |
-Uses complex instructions each of which may take multiple cycles. -Many instructions are available.Many addressing modes are available. -Instructions have variable format.A task may be completed by a single instruction as instructions are more complex than individual instructions in RISC. -Programs run more slowly due to the complicated instructions/ circuit. -Increased hardware cost. -Many instructions may be redundant |
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