컴퓨터구조 ANSWER1

1. answer: mflo $t0

2. answer: 000000 01000 01001 00000 00000 011000

3. answer: 000000 00000 00000 01010 00000 010010

4. answer: 3

5. answer: 1

6. answer:000000 10001 10010 01000 00000 100000

7. answer: sub $6 $4 $5

8. answer: 000000 00000 10000 01010 00100 000000

9. answer: 001101 01001 01011 1000 0000 0000 0000

10. answer: 001100 00000 01100 1111 1111 1111 1111 1111

11. answer: 001000 00000 01101 1111 1111 1111 1111

12. answer: True

13. answer: ori $t1, $0, -32768, (상수 field를 10진수로 표현해야한다)

14. answer: True

15. answer: lui $t1, -1,ori $t1, $0, -32768

16. answer: True

17. answer: 0x56780000 / answer: 001111 00000 01000 1111 1111 1111 1111

18. answer: 101011 00101 00100 0000 0000 0000 1000

19. answer: 100011 00101 00110 0000 0000 0000 1000, lw $6, 8($5)

20. answer:

    lw $t0, 32($s3) #base register로부터 32비트 떨어져있으므로(4 byte x 8) 32라고 적어야 한다.
    add $s1, $s2, $t0

21. answer: 000000 01001 00000 00000 00000 001000

22. answer: 000010 0000 0100 0000 0000 0000 0010 01 (상위 4비트는 PC의 4비트로 채우고 하위 2비트는 0으로 채운다)

23. answer: 000101 00011 00100 0000 0000 0000 0011

    rs, rt의 위치가 assemble후에 바뀌지 않음을 유의하자.

24. answer: false, (-131071~131071)

25. answer:

    Loop:    
        sll $t1, $s3, 2
        add $t1, $s6, $t1
        lw $t1, 0($t1)
        bne $t1, $s5, Exit
        addi $s3, $s3, 1
        j Loop
    Exit: 
        jr $ra

26. answer:

    addi $a0, $0, 10
    addi $v0, $0, 1
    syscall

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