.model small

.stack 100h

.data

msg1 db ' Ban khong co o dia mem !$'

msg2 db ' Ban co: $'

msg3 db ' o dia mem !$'

.code

main proc

mov ax,@data

mov ds,ax

int 11h

shl ax,1

jnc Floopy

lea dx, msg1

mov ah,9

int 21h

jmp Exit

Floopy:

lea dx,msg2

mov ah,9

int 21h

mov dx,0

shr bx,1

shr bx,1

mov ax,0

adc dx,ax

shr bx,1

adc dx,ax

add dx,31h

mov ah,2

int 21h

lea dx,msg3

mov ah,9

int 21h

Exit:

mov ah,4ch

int 21h

main endp

end main