x86-64 assembly

I am going to address the difference between IA32 and x86-64 ATT assemly.
if you want to see more details, please see lecture 13 of:
http://www.cs.gmu.edu/~setia/cs367/slides/index.html

EBP will not be the special register.
ESP will be constant.
pass arguments by using registers(MAX = 6).
allocate local variables aromatically at the function call.