PROGRAM TO FIND WHETHER A GIVEN NUMBER IS ODD OR EVEN

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.model small

.data

message1 db 'number is odd$'

message2 db 'number is even$'

.code

.startup

call readh

push ax

mov dl,0ah

mov ah,02h

int 21h

pop ax

mov bl,01h

and al,bl

jz evn

mov dx,offset message1

mov ah,09h

int 21h

jmp label1

evn:

mov dx,offset message2

mov ah,09h

int 21h

label1:

mov dl,0ah

mov ah,02h

int 21h

mov ah,4ch

int 21h

readh proc near

mov cl,4

mov si,2

mov bl,00h

readh1:

mov ah,1

int 21h

call conv

shl bl,cl

add bl,al

dec si

jnz readh1

mov al,bl

ret

readh endp

conv proc near

cmp al,'9'

jbe conv2

cmp al,'a'

jb conv1

sub al,20h

conv1:

sub al,7

conv2:

sub al,30h

ret

conv endp

end

Output:

22

number is even