>The "NILH req,X'7F'" is very useful when switching from 31 bit mode.
No it is not. LLGTR reg,reg on the other hand is. By the way the NILH shown is equivalent to NILH reg,x'007F'. You need NILH regx,x'7FFF' if you're try to turn off bit 32 of the 64-bit GR. >The STORAGE macro worked (for XA storage). I was not sure it would. as documented: AMODE: 24- or 31- or 64-bit And it will necessarily work only if SYSSTATE AMODE64 is set properly. This should be assumed true (as it is good form, even if not necessarily needed) for all macros that support AMODE 64 invocation By the way, despite 50 years of history (or over 30 since BASR became available), I'm told that BASR is marginally better to use than BALR Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
