Question

6. Write a logical shift instruction that multiplies the contents of EAX by 16. 7. Write a logical shift instruction that divides EBX by 4. 8. Write a single rotate instruction that exchanges the high and low halves of the DL register. 9. Show the value of AL after each shift or rotate instruction has executed in the provided code sequence. a. mov al, 0D4h shr al, 1 ; b. mov al, 0D4h sar al, 1 ; c. mov al, 0D4h sar al, 4 ; d. mov al, 0D4h rol al, 1

          6. Write a logical shift instruction that multiplies the contents of EAX by
16.
7. Write a logical shift instruction that divides EBX by 4.
8. Write a single rotate instruction that exchanges the high and low halves
of the DL register.
9. Show the value of AL after each shift or rotate instruction has executed
in the provided code sequence.
a. mov al, 0D4h
shr al, 1
; b. mov al, 0D4h
sar al, 1
; c. mov al, 0D4h
sar al, 4
; d. mov al, 0D4h
rol al, 1

6. Write a logical shift instruction that multiplies the contents of EAX by
16.
7. Write a logical shift instruction that divides EBX by 4.
8. Write a single rotate instruction that exchanges the high and low halves
of the DL register.
9. Show the value of AL after each shift or rotate instruction has executed
in the provided code sequence.
a. mov al, 0D4h
shr al, 1
; b. mov al, 0D4h
sar al, 1
; c. mov al, 0D4h
sar al, 4
; d. mov al, 0D4h
rol al, 1

Added by John P.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert Sri K

03/14/2023

Step 1

This will shift all the bits in EAX to the left by 4 positions, effectively multiplying the value by 16. Show more…

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Write a logical shift instruction that multiplies the contents of EAX by Write a logical shift instruction that divides EBX by 4 . Write a single rotate instruction that exchanges the high and low halves of the DL register. Show the value of AL after each shift or rotate instruction has executed in the provided code sequence. a. mov al, 0D4h shr al, 1 ; b. mov al, 0D4h sar al, 1 ; c. mov al, 0D4h sar al, 4 ; d. mov al, 0D4h rol al, 1 6. Write a logical shift instruction that multiplies the contents of EAX by 16. 7. Write a logical shift instruction that divides EBX by 4 8. Write a single rotate instruction that exchanges the high and low halves of the DL register. 9. Show the value of AL after each shift or rotate instruction has executed in the provided code sequence. a. mov al,0D4h shr al, 1 ; b.mov al,0D4h sar al, 1 ;c. mov al,0D4h sar al, 4 ; d. mov al, 0D4h rol al, 1