Use the following variable definition for questions Var1 db -4, -2, 3, 1 Var2 dw

Question

Use the following variable definition for questions

Var1      db -4, -2, 3, 1

Var2      dw 1000h, 2000h, 3000h, 4000h

For each of the following statements, state whether or not the instruction is valid:

a-MOV   al,   var1

b-MOV   ah,   var2

c-MOV   var2,   al

d-MOV   ds,   ax

What will be the hexadecimal value of destination operand after each of the following instructions execute in sequence?

a-MOV    al,    var1

b-MOV    ah,   [var1 + 3]

What will be the value of destination operand after each of the following instructions execute in sequence?

a-MOV    ax,   var2

b-MOV    ax,   [var2 + 2]

Explanation / Answer

For each of the following statements, state whether or not the instruction is valid:

a-MOV   al,   var1

b-MOV   ah,   var2

c-MOV   var2,   al

d-MOV   ds,   ax

ANS:

a. not valid

b. valid

c. valid

d. valid

a-MOV    al,    var1 ANS: 4

b-MOV    ah,   [var1 + 3] ANS: 3000h

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.