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From: Barbara Morris Or for the LOOKUP opcode, you can set the factor 2 index to 901 before the LOOKUP: C eval n = 901 C 'x' lookup myarr(n) 10
The technique Barbara notes has been available for as long as I can remember; in fact, that's how we old dinosaurs used to save cycles when trying to weed out duplicates. We would load our array BACKWARDS, starting with the last element, and then do a lookup with a starting position. The other option was to make the array ascending and prefill the array with *HIVAL (or descending and use *LOVAL), but a lot of times we didn't have the luxury of getting our data to us in a sorted fashion. Joe
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