Use the following data definitions until notified otherwise Byte1 BYTE 0FFh, 1,2

Question

Use the following data definitions until notified otherwise

Byte1    BYTE      0FFh, 1,2

Byte2    Byte       14h

Word1 WORD   0FFFFh, 1,2

Word2 WORD   3

Word3 sWORD                 7FFFh, 8000h

Word4 SWORD                    9000h

Dword1    DWORD   10h, 20h, 30h, 40h

dArray      DWORD   10   DUP (?)

11. Implement the following expression in assembly language, using 32 bit integers (you may modify any registers you wish)

Eax=dword1+ebx-ecx

12. Implement the following expression in assembly language, using 32 bit integers (you may modify Any registers you wish)

Eax=dword1+ (edx-ecx)+1

13. Implement the following expression in assembly language using 32 bit integers. The notation dword (1) corresponds by an array reference in C++ of Java

dArray (0)= dArray (1) + dArray (2)

14. Use the following data declaration to write an assembly language loop that copies the string from source to target. Use indexed addressing with EDI and use the LOOP instruction

Source   BYTE    sitting to be copied, 0

Target BYTE   SIZEOF source DUP (0), 0

15. The MO V instruction does not permit an immediate value to be moved to a segment register

a. true

b. fales

Explanation / Answer

11)

mov eax,dword1

add eax,ebx

sub eax,ecx

12)

sub edx,ecx

mov eax,dword1

neg eax           ; eax = -dword1

add eax,edx

inc eax

13)

mov eax,[dArray+4]           

add eax,[dArray+8]

mov dArray,eax

14)

mov edi,0

     mov ecx,SIZEOF source

L1: mov al,source[edi]

     mov target[edi],al

     inc edi

     loop L1

15)   a) True

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

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