I did not understand why the documentation in the "Extended Addressabilty Guide" stated "The IARV64 macro provides all the virtual storage services for your programs." and then I find IARST64 documented in the "Assembler Services Reference". So I did some testing:
Code Executed: SYSSTATE AMODE64=YES N R12,=X'7FFFFFFF' MODESET MODE=SUP,KEY=ZERO /* MUST BE KEY 0 WHEN ISSUE ESTAE*/ SAM64 IARST64 REQUEST=GET, * * X AREAADDR=THEAREAADDR, * * X SIZE=THEAREASIZE,TYPE=PAGEABLE, * * X COMMON=YES,OWNER=SYSTEM, * * X FPROT=YES, * * X CALLERKEY=YES, * * X FAILMODE=RC, * * X REGS=SAVE, * * X RETCODE=LRETCODE,RSNCODE=LRSNCODE * LG R2,THEAREAADDR LA R3,15 LA R4,=C'MEAS 64 STORAGE' LGR R5,R3 MVCL R2,R4 SAM31 WAIT ECB=WAITE What I learned: 1) I need to learn a whole lot about 64 bit programming. 2) The storage obtained was still available after the job was cancelled (COMMON=YES,OWNER=SYSTEM) as I hoped. 3) The storage obtained was visable from other address spaces (I looked in a dump of a TSO user) as I hoped. 4) The storage obtained was only 64 bytes (as documented by the IARST64 documentation. 5) I did not have to obtain the storage using IARV64. I did not have to use IARV64 to SHAREMEMOBJ. It works exactly as I hoped. I will keep you informed if I learn more on this issue. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN