John, (I was about to ask for the source of the caller- but you found it)
now: >> The main driver program was the one that abended. and >> It starts in AMODE=64 and bombed on a STMG. Not sure why. Is it so that the hosting operating system you are using does guarantee that it calls you in the AMODE you specify at link/binder time? If not I would insert a SAM64 and make sure that all registers have proper values in the high word (once you get high). -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de
