Contributor: SWAG SUPPORT TEAM { >Is there a way (using bit manipulations such as AND, OR, XOR) to >swap to Variables without making a 3rd temporary Variable? > If the two Variables are numbers, and the following operations won't overflow the limitations of the Type, then yes, you can do it like this: } Var A, B : Integer; begin A := 5; B := 3; A := A + B; B := A - B; A := A - B; { which is A := 5 + 3 (8) B := 8 - 3 (5) A := 8 - 5 (3) A = 3 B = 5 } end;