In a message dated 7/17/2006 1:57:52 P.M. Central Daylight Time, [EMAIL PROTECTED] writes:
>A 64 bit caller will not have garbage bits in registers. When program X is first dispatched in MVS from // EXEC PGM=programX, the contents of general purpose registers 1, 13, 14, and 15 are defined. All other registers (general purpose, access, floating point, whatever) are a crap shoot, including the left halves of all that have left halves. If programX becomes the caller, there could very easily be garbage in the left half of almost any register if the caller has never bothered to clear it. Been there seen that. Bill Fairchild ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
