> WCode is not published. MI is. Actually, if you approach IBM with the intention of porting, say FORTRAN, a compiler to the iSeries and with some money to show your commitment, it's my understanding that you get to see the w-code docs. Not fully publicly published granted, but it's definitely not a super secret. Plus if you ask the right people nicely, you can sometimes get explanations on sections of w-code. > If an alternative, non ile process is allowed > on the iSeries, wcode is not needed and I would be very suprised > if the resulting code was not fully optimizable. But why bother ? The w-code spat out from the ILE/C compiler front-end is very opimizable, and in most cases will provide a tighter PPC instruction stream (after the back-end has optimised it) than the MI compiler/optimiser for similar code. --phil
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