The DLL has nothing do with the I/O as I said I have similar code for both Windows and Z/os
> On Jul 2, 2019, at 12:31 PM, Charles Mills <charl...@mcn.org> wrote: > > @Peter is (of course!) correct. I just accepted your premise and went from > there. You need a 24-bit GETMAIN for the DCB, but a separate DLL or anything > like that is a way unnecessary over-complication. > > I wrote a paper years ago on converting A/RMODE 24 DCB I/O programs to > 31-bit. I will send you a copy, and I hereby offer a copy to anyone else who > wants to write me off-list. > > It is not *directly* relevant -- it is about *converting* an existing DCB > program to 31-bit -- but it does cover what needs to go where relative to > the 24-bit line in the DCB world. > > Charles > > > -----Original Message----- > From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] > On Behalf Of Peter Relson > Sent: Tuesday, July 2, 2019 4:52 AM > To: ASSEMBLER-LIST@LISTSERV.UGA.EDU > Subject: Re: C DLL Code from Assembler > > <snip> > First of my Assembler code is RMODE31 > So I anyway have to call something below the line to open to read to close > </snip> > > It is not true that you have to call something below the line. Code doing > OPEN and CLOSE can be RMODE 31, quite possibly needing to specify MODE=31. > The DCB itself needs to be below 16M. Even exits via the DCBE can be above > 16M. > > Peter Relson > z/OS Core Technology Design
