I'am accessing storage in a different address space Via an SRB and don't want to get a S0C4 I realize that in this case PSATOLD will be zero and I will be running in key zero but I was using TCBPKF as an example
I'm not quite sure of the second operand usage Seems the same as the shift instructions If for instance I wanted to check out weather a TCB could access that storage would I move the 1 byte TCBPKF field to a double word and shift it to bits 56-59 ? Thanks for your help > On Feb 19, 2017, at 9:43 AM, Binyamin Dissen <[email protected]> > wrote: > > You do realize, of course, without disablement and/or locks the storage > attributes can change after you check them? > > Why do you need to know? > > On Sat, 18 Feb 2017 19:34:29 -0500 Joe Reichman <[email protected]> wrote: > > :>Hi, > :> > :> > :> > :>If I would like to access say 20 bytes of core (to see if I have both fetch > :>and store capability) I would have to loop incrementing B1 checking against > :>TCBPKF (where TCB is pointing to PSATOLD) > :> > :> > :> > :> > :> > :> LA R0,20 > :> > :> LA R2,STORSCESS > :> > :> LOOP TPR0T 0(R2),TCBPKF > :> > :> BC 7,CANTACESS > :> > :> LA R2,1(,R2) > :> > :> BCT R0,LOOP > :> > :> > :> > :>Thanks > :> > :> > :> > :> > :>---------------------------------------------------------------------- > :>For IBM-MAIN subscribe / signoff / archive access instructions, > :>send email to [email protected] with the message: INFO IBM-MAIN > > -- > Binyamin Dissen <[email protected]> > http://www.dissensoftware.com > > Director, Dissen Software, Bar & Grill - Israel > > > Should you use the mailblocks package and expect a response from me, > you should preauthorize the dissensoftware.com domain. > > I very rarely bother responding to challenge/response systems, > especially those from irresponsible companies. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
