I think that is what you are wanting. Now, if you don't really want to be in AR mode, I would probably use:
CPYA 3,4 COPY ACCESS REG 4 INTO ACCRESS REG 4 LA 3,0(,4) LOAD ADDRESS PORTION OF GPR 4 INTO GPR3 or maybe CPYA 3,4 LR 3,4 or perhaps even CPYA 3,4 LGR 3,4 As Perl people say: "There's more than one way to do it." -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * john.mck...@healthmarkets.com * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Micheal Butz > Sent: Tuesday, March 06, 2012 3:53 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: LAE instruction > > So SAC 512 > LAE R3,0(,R4) > > R3 is CPYA from access R4 right > > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:IBM-MAIN@bama.ua.edu] On Behalf > Of McKown, John > Sent: Tuesday, March 06, 2012 4:22 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: LAE instruction > > Yes, from the LAE instruction text: > > <quote> > The address specified by the X2, B2, and D2 fields is > placed in general register R1. Access register R1 is > loaded with a value that depends on the current > value of the address-space-control bits, bits 16 and > 17 of the PSW. If the address-space-control bits are > 01 binary, the value placed in the access register > also depends on whether the B2 field is zero or non- > zero. > > ... > > PSW Bits > 16 and 17 > Value Placed in Access Register R1 > 00 00000000 hex (zeros in bit positions 0-31) > > 10 00000001 hex (zeros in bit positions 0-30 > and one in bit position 31) > > 01 If B2 field is zero: 00000000 hex (zeros in > bit positions 0-31) > If B2 field is nonzero: Contents of access > register B2 > > 11 00000002 hex (zeros in bit positions 0-29 > and 31, and one in bit position 30) > > From the SAC instruction > > Code Name of Mode Result in PSW Bits 16 & 17 > 0000 Primary space 00 > 0001 Secondary space 10 > 0010 Access register 01 > 0011 Home space 11 > All others Invalid > > </quote> > > SAC 512 has is '0010' from the above and results in b'01' or > AR mode in the > PSW bits 16 & 17. Which is what is required for the LAE > instruction to set > the access register of the result access register from the base access > register (when not b'0000'). > > > > John McKown > > Systems Engineer IV > > IT > > > > Administrative Services Group > > > > HealthMarkets(r) > > > > 9151 Boulevard 26 * N. Richland Hills * TX 76010 > > (817) 255-3225 phone * > > john.mck...@healthmarkets.com * www.HealthMarkets.com > > > > Confidentiality Notice: This e-mail message may contain > confidential or > proprietary information. If you are not the intended recipient, please > contact the sender by reply e-mail and destroy all copies of > the original > message. HealthMarkets(r) is the brand name for products > underwritten and > issued by the insurance subsidiaries of HealthMarkets, Inc. > -The Chesapeake > Life Insurance Company(r), Mid-West National Life Insurance Company of > TennesseeSM and The MEGA Life and Health Insurance Company.SM > > > > > -----Original Message----- > > From: IBM Mainframe Discussion List > > [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Micheal Butz > > Sent: Tuesday, March 06, 2012 3:00 PM > > To: IBM-MAIN@bama.ua.edu > > Subject: Re: LAE instruction > > > > 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 > > > > > > ---------------------------------------------------------------------- > 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
