Does anyone happen to know and can tell me whether and when any of the IBM higher level language compilers (C, COBOL, FORTRAN, PL/I) are enabled for 64-bit addressing, and so are capable of using virtual storage "above the BAR", assuming that one would use an assembly language subroutine or one of the IBM callable service routines to allocate such storage on z/OS. For that matter, were any of those compilers "enabled" for 47-bit addressing, e.g. with the use of "access registers" (ARs) on the System 390 machines running OS/390, or even on MVS/ESA on some System/370-ESA capable models that supported ARs and the extended addressing they provided? Or was this something strictly for assembler language developers to exploit? And, when and what compilers were extended to support 31-bit addressing e.g. in MVS/XA and above? Thanks in advance.
All the best, Mark S. Waterbury ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
