OPERATION

1. add operation:

2. Sub Operation:

3. lw Operation:

4. sw Operation:

5. beq Operation:

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Instruction Implementation:

First step:

• Instruction fetch (Send PC to memory + Send READ signal to memory)
• PC = PC+4
  

Second step:

• opcode decoding
• register prefetch(레지스터 값을 미리 가져온다.)

• 위 사진은 R-format의 예시이다. 다른건 볼것없고, read two register operands 즉 , prefetch 한다는것만 알아두자.

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