<snip> Are you implying that an ESTAE(X) routine with SDWALOC=31 is guaranteed an SDWA and there is no reason to check R0 for 12 and alternate code paths? </snip>
Jon P did write what I meant. Answer: no, it just makes it a lot more likely that the storage obtain for the SDWA will succeed. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
