In this module we have leant about how to do division and multiplication in emulator 8086. For do multiplication operation we have function 'mul'. There is a specific register in this function called 'mul' . This is AL. It is fixed in te function. When we will do multiplication then we will take 8 bit . In this reason we don't use AX,BX .
When we will do division then we will use 'div' function. Here divisor will always 8 bit. And the dividend will always 16 bit. Quotient will always in AL .Reminder will always AH. There is a fixed register in div function and it's known as AX.