Ed, reading this for the fourth time:
>>I suspect the code was written long before the existence of PC routines. The approach is clever for sure, but that in itself does not guarantee there is an exposure. Am I dense or did you leave out an extra "non" (or "not") -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de