How is storage space for local variables created in the stack? A swap procedure can exchange two elements (pointed to by ESI and EDI) of an array using xchg EAX,[EDI] xchg EAX,[ESI] xchg EAX,[EDI]...

How is storage space for local variables created in the stack?

A swap procedure can exchange two elements (pointed to by ESI and EDI) of an array

using

xchg EAX,[EDI]

xchg EAX,[ESI]

xchg EAX,[EDI]

The above code preserves the contents of the EAX register. This code requires six memory accesses. Can we do better than this in terms of the number of memory accesses if

we save and restore the EAX using push and pop stack operations?