Suppose a machines instruction set includes an instruction names swap that operates as follows (as an indivisible
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Suppose a machine’s instruction set includes an instruction names swap that operates as follows (as an indivisible instruction):
swap (boolean *a, Boolean *b)
{
boolean t;
t = *a;
*a =*b;
*b = t;
}
Show how swap can be used to implement the P and V operations.
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