ABEND0C4 PIC38 is the fun one. You can't step into any 32-bit address as the 32nd bit was reserved by the MVS to MVS/XA change to mark whether we were in 24-bit or 31-bit.
So the 64-bit guys decided that the easiest fix was to completely disallow any address from 8000000 through to 8FFFFFFF, which is an extremely good idea to avoid breaking 31-bit code. They added PIC3A and PIC3B for the 64-bit page and segment exceptions (and we've seen a few of those with Db2). You'll soon learn you're in the wrong addressing mode with a PIC38. Reset the 32nd bit before mode switching to 64 and you won't fail that way. You'll find one of the other prog 0004 interrupt codes. Regards, Dougie On Fri, 22 Nov 2019, 13:42 Joseph Reichman, <reichman...@gmail.com> wrote: > My mistake was jumping the gun and not looking at the reason code > > It clearly stated that S0C4 Reason code 38 > Had to do with AMODE 64 when the high order bit of a 31 bit pointer ( > which is not part of the address in amode 31 but is in amode 64 ) it is > best practice to do a LLGTR RX before basring a 31 bit pointer in amode 64 > > My fault I gave to slow down look at the doc before I send an e-mail :( > > > > Joe Reichman > 170-10 73 rd ave > Fresh meadows NY 11366 > > > On Nov 22, 2019, at 7:51 AM, Peter Relson <rel...@us.ibm.com> wrote: > > > > I continue not to understand why you repeatedly fail to provide the > > information necessary for the good folks on this list to help you. > > > > <snip> > > So I have LOAD a module amode 64 rmode 24 > > </snip> > > Your module does not need to match the RMODE of your DCB unless your DCB > > is physically resident in the module, namely your module is not > reentrant. > > > > > > <snip> > > After loading I turn the 1 bit to the right off now I have a clean half > > address > > </snip> > > Perhaps you didn't do what you thought you did. > > > > <snip> > > when I BASR to it bombs and the PSW has the one bit on > > </snip> > > > > Show the symptom dump. Show the registers at the time of the error. Show > > the information from the program check. Show something... > > > > Peter Relson > > z/OS Core Technology Design >
