BACHELOR OF COMPUTER APPLICATIONS
Course Code : BCSL-022
Course Title : Assembly Language Programming Lab
Assignment Number : BCA(II)/BCSL022/Assign/13
Write and run an assembly language program that converts a packed two digit BCD number in AL register to equivalent binary number. The binary number is stored in the AH register
DATA SEGMENT
PACKEDBCD DB 52H
BINARY DB ?
DATA ENDS
CODE SEGMENT
ASSUME DS:DATA CS:CODE
START:
MOV AX,DATA
MOV DS,AX
MOV AH,0
MOV AL,PACKEDBCD
MOV BL,AL
AND AL,0F0H
AND BL,0FH
MOV CL,04H
ROL AL,CL
MOV CL,10
MUL CL
ADD AL,BL
MOV AH,AL
MOV BINARY,AH
MOV AH,4CH
INT 21H
CODE ENDS
END START
program code :
[codesyntax lang=”asm” lines=”normal”]
DATA SEGMENT
PACKEDBCD DB 52H
BINARY DB ?
DATA ENDS
CODE SEGMENT
ASSUME DS:DATA CS:CODE
START:
MOV AX,DATA
MOV DS,AX
MOV AH,0
MOV AL,PACKEDBCD
MOV BL,AL
AND AL,0F0H
AND BL,0FH
MOV CL,04H
ROL AL,CL
MOV CL,10
MUL CL
ADD AL,BL
MOV AH,AL
MOV BINARY,AH
MOV AH,4CH
INT 21H
CODE ENDS
END START
[/codesyntax]
Screen shots :-
Before Execution :-
After Execution :-
