Re: Executing an XORSTR in ILE?

[Joe Pluta <joepluta@xxxxxxxxxxxxxxxxx>]

On 10/19/2011 10:04 AM, Dennis wrote:
> On a mildly relevant track: not sure how widely known this is so I'll present a challenge:  What are the three logical instructions that, when executed in order, will cause the values of A and B to be swapped, without need of a work area?

I'd say it's pretty widely known by those who did assembly language 
programming.  It's a great way to swap registers without going to memory.

A = A XOR B   (makes A a combination of A and B)
B = A XOR B   (sets B to A)
A = A XOR B   (sets A to B)

Joe