1. MUL operation

2. MLU Operations
The MUL instruction multiplies an 8-,16-,32-bits operand by either AL,AX,or EAX. The instruction format is:
MUL r/m8
MUL r/m16
MUL r/m32
The result is in EDX and EAX .
EDX sets the flag register if it is not zero ( as the result of operation over flow situation is Eax carries the product of operation.
Will we go through the detail of multiplication and division instruction later on this course.

3. Example: TITLE Multiply (AddSub2.asm)
; This program Multiply two decimal numbers together. We need to put the first operand in eax, the ;second operand in another multi purpose register. The product goes to eax
; Last update: 2/1/02
INCLUDE Irvine32.inc
.data
val1 dword 10
val2 dword 40
.code
main PROC
mov eax,val1 ; eax=10
mov ebx,val2 ; ebx=40
mul ebx ; eax=ebx*eax
call writedec
exit
main ENDP
END main