CVTALRS indicates that z/OS support for ASN-and-LX reuse is present. This means, among other things, that you can use such things as the "LXSIZE" operand of LXRES. This bit is on for all still-supported z/OS releases (i.e., z/OS 1.6 and follow-on).
CVTALR indicates that the architecture is enabled. That means that you will actually get a reusable LX if you request one (and thus must meet the usage requirements for that such as setting the high half of GPR 15 with the proper value before using that LX in issuing a PC). And if we had actually enabled ASN reuse, and if your address space were architecturally reusable, you would not be able to SSAR or PT to it but would need to use SSAIR / PTI if the architecture demanded it. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- 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
