PROGRAM TO CONVERT 8-BIT BINARY NUMBER TO ITS GRAY CODE FORM

mmicroprocessor.blogspot.com

.model small

.data

opr db 04h

res db ?

.code

.startup

mov al,opr

mov bl,al

rcr al,1

xor al,bl

mov res,al

mov al,res

mov dl,al

mov bh,al

and dl,0f0h

mov cl,4

ror dl,cl

add dl,30h

cmp dl,'9'

jbe a1

add dl,7h

a1:

mov ah,02h

int 21h

mov dl,bh

and dl,0fh

add dl,30h

cmp dl,'9'

jbe a0

add dl,7h

a0:

mov ah,02h

int 21h

mov ah,4ch

int 21h

end

Output:

06

PROGRAM TO CONVERT BCD NUMBER TO BINARY NUMBER

mmicroprocessor.blogspot.com

.model small

.data

bcd equ 12h

result db ?

.code

.startup

mov al,bcd

mov bl,bcd

and al,0f0h

mov cl,4

rol al,cl

mov cl,10d;binary=(6x10d+7)

mul cl

and bl,0fh

add al,bl

mov result,al

mov dl,al

mov bh,al

and dl,0f0h

mov cl,4

ror dl,cl

add dl,30h

cmp dl,'9'

jbe a1

add dl,7h

a1:mov ah,02h

int 21h

mov dl,bh

and dl,0fh

add dl,30h

cmp dl,'9'

jbe a0

add dl,7h

a0:

mov ah,02h

int 21h

mov ah,4ch

int 21h

end

Output:

0C