What is program of Swapping of two numbers in assembly language?

Answer 1

LDA A //Load first number

STA TMP

LDA B //Load second number

STA A

LDA TMP

STA B

HLT

IMPROVED:

You can visit the link below to see the source code of the program. Make sure you have required library installed in MASM to run the program else you can see the logic and coding.

http://infinityloopers.com/swapping-two-numbers-in-assembly-programming/

Answer 2

// Without temporary:

void swap(int& x, int& y ) { x^=y^=x^=y; }

// With temporary:

void swap(int& x, int& y ) { int t=x; x=y; y=t; }