On Thu, 7 Mar 2019 11:32:54 -0500, Phil Smith III wrote: >Anyone remember the old EXEC 2 source (Chris Stephenson), which included >comments like "Do this while R3 settles"? Those days are very long gone! > Was that merely for performance or to circumvent an actual hardware bug?
The original CDC 6600 had an "out-of-order-store" bug the repair for which slowed the entire system down by 5. There was a utility for CDC 6600 assembler programmers which would scan assembler source and flag pipeline stalls. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
