John Mckiwns reply was a explanation of the SAC inst. Which I am aware of
The Doc for LAE says the inst the functionality is dependent on PSW bits 16 17 address space control bits these are set by the SAC inst So my original question remains does Should address space control buts be set via the sac before executing the LAE Sent from my iPhone On Mar 6, 2012, at 3:37 PM, Rob Scott <rsc...@rocketsoftware.com> wrote: > John McKown's reply covered these points very well > > Rob Scott > Lead Developer > Rocket Software > 275 Grove Street * Newton, MA 02466-2272 * USA > Tel: +1.781.684.2305 > Email: rsc...@rs.com > Web: www.rocketsoftware.com > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf > Of Micheal Butz > Sent: 06 March 2012 19:59 > To: IBM-MAIN@bama.ua.edu > Subject: Re: LAE instruction > > Thanks > > Regarding my questions > > The doc says the inst is dependent > On address space control bits which is set by the SAC inst. > > Secondly seems like the displacement doesn't play a role in the inst > > Sent from my iPhone > > On Mar 6, 2012, at 2:49 PM, Rob Scott <rsc...@rocketsoftware.com> wrote: > >>> You have coded "LAE R3,0(R4)" - which is the same as "LAE R3,(R4,R0)" >> >> Should read : >> >> You have coded "LAE R3,0(R4)" - which is the same as "LAE R3,0(R4,R0)" >> >> Rob Scott >> Lead Developer >> Rocket Software >> 275 Grove Street * Newton, MA 02466-2272 * USA >> Tel: +1.781.684.2305 >> Email: rsc...@rs.com >> Web: www.rocketsoftware.com >> >> >> -----Original Message----- >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On >> Behalf Of Rob Scott >> Sent: 06 March 2012 19:47 >> To: IBM-MAIN@bama.ua.edu >> Subject: Re: LAE instruction >> >> Commas are *very* important in AR-mode >> >> You have coded "LAE R3,0(R4)" - which is the same as "LAE R3,(R4,R0)" >> >> Coded that way there is no automatic way that AR3 is going to inherit the >> AR4 value. >> >> You need : "LAE R3,0(,R4)" >> >> This will ensure that AR3 is populated from the AR for the referenced base >> register R4. >> >> >> Rob Scott >> Lead Developer >> Rocket Software >> 275 Grove Street * Newton, MA 02466-2272 * USA >> Tel: +1.781.684.2305 >> Email: rsc...@rs.com >> Web: www.rocketsoftware.com >> >> >> -----Original Message----- >> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On >> Behalf Of Micheal Butz >> Sent: 06 March 2012 19:05 >> To: IBM-MAIN@bama.ua.edu >> Subject: LAE instruction >> >> Hi, >> >> >> >> I have two part question regarding the LAE instruction >> >> >> >> . What would the sac value e.g. 256,512,768 have to be that when >> using the LAE instructions with the following operands LAE 3,0(R4) >> would >> AR3 get loaded with AR4 >> >> >> >> . Second what value does the displacement play in the instruction >> >> >> >> >> >> >> >> >> >> >> >> Thanks >> >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, send >> email to lists...@bama.ua.edu with the message: INFO IBM-MAIN >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, send >> email to lists...@bama.ua.edu with the message: INFO IBM-MAIN >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, send >> email to lists...@bama.ua.edu with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@bama.ua.edu with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
