Jerry, 16 Jul you wrote to Bob Stout:
 JC> I don't think so - the high bit is set for negative numbers
 JC> on a 1's complement machine, just like it is on a 2's
 JC> complement machine. 
Yes, but AFAIK not all numbers with the high bit set are negative numbers. 
All 1's would be '-0', just as all 0's would be '+0'.
Bye,
 Erik 
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