I am new to Assembly language and I'm getting a problem with the DIV operation.
This should output the quotient and remainder if a 1-digit number is divided to a 1-digit number. What is wrong with my code?
.MODEL SMALL .STACK 64 .DATA MSGA DB 13,10,"Input first number: ","$" MSGB DB 13,10,"Input second number:","$" MSGC DB 13,10,"The quotient is: ","$" MSGD DB 13,10,"The modulo is: ","$" NUM1 db ? NUM2 db ? .CODE MAIN PROC NEAR MOV AX, @DATA MOV DS, AX ; get first number LEA DX, MSGA MOV AH, 09h INT 21h MOV AH, 01 INT 21H SUB AL, '0' MOV BL, AL ; get second number LEA DX, MSGB MOV AH, 09h INT 21h MOV AH, 01 INT 21H SUB AL, '0' MOV CL, AL MOV AL, BL ; divide DIV CL MOV NUM1, AL ADD NUM1, '0' MOV NUM2, AH ADD NUM2, '0' ; output quotient LEA DX, MSGC MOV AH, 09h INT 21h MOV DL, NUM1 MOV AH, 02H INT 21h ; output remainder/modulo LEA DX, MSGD MOV AH, 09h INT 21h MOV DL, NUM2 MOV AH, 02H INT 21h MOV AH, 4Ch INT 21h MAIN ENDP END MAIN