<snip> Am I correct in understanding that on current hardware an overflow from the TOD will be carried into the Epoch Index, but only once? </snip> No, that is not correct. The Epoch Index gets incremented upon the wrap/overflow, for as many epochs as happen.
<snip> Am I correct in understanding that the Clock Comparator remains in 64-bit TOD format? How will intervals spanning that time in 2042 be handled? </snip> Yes, it is true. The short answer to the second question is "correctly". As a hint, try doing 64-bit arithmetic that subtracts a before-wrap 8-byte TOD value from an after-wrap 8-byte TOD value and see what you get. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
