Question

Write a complete assembly language program that computes in EAX the value of the expression x − 2y + 4z for doublewords in memory at x, y, and z. Choose the current month (1–12), day (1–31), and year (all four digits) for the values of x, y, and z.

Answer 1

ANS)

The complete assembly language programis written as

.data

msg1 db 'Enter x between 1 to 12:',0

x dw

msg2 db 'Enter y between 1 to 31:',0

y dw

msg3 db 'Enter z as the year:',0

z dw

result db 'The result is:',0

result dw

start:

mov eax,@data

mov ds,ax

mov eax,offset msg1

call put_str

call getn

mov x,eax

mov eax,offset msg2

call put_str

call getn

mov y,eax

mov eax,offset msg3

call put_str

call getn

mov ax,offset result

mov z,eax

call put_str

mov eax,y

mov ebx,'2'

mul ebx

sub ebx,'0'

mov ebx,x

add eax,ebx

mov edx,4

mov ecx,z

mul edx

add,eax,ecx

int 0x80

end start