Andreas and Bob Thank You Let me see if I understand this After the load I would issue the following Rx - GeneralPurpose Registers Gx - 64Bit Registers
After the Load ST R0,FWD LLGTR G15,R0 STG G15,PROG64@ . . PROG64@ DC 2A(0) FWD DC A(0) . . * To Invoke the 64Amode Module LARL R1,STRUCT31 31 Bit Structure LG R15,PROG64@ Ensure R15 Has a Good Address OILL R15,X'0001' Ensure bit 63 is 1 BASSM R14,R15 Call PROG64 in AMODE 64 * So if the above sequence of instructions is corect Do I still Need the OILL instruction ? Paul D'Angelo ************* ---------- Original Message ---------- From: "Andreas F. Geissbuehler" <[email protected]> To: [email protected] Subject: Re: LOADING An AMODE64 Program Date: Sat, 8 Aug 2015 21:58:53 -0400 Bob Rutledge wrote: > Yes, but note: If the loaded program is _marked_ AMODE 64, the LOAD service > will do all that stuff for you and return the 64-bit address in R0. > > On 8/8/2015 5:53 PM, Paul wrote: >> Thanks Again >> SO the sequenec of Instructions should look like this. >> >> LARL R1,STRUCT31 31 Bit Structure >> L R15,PROG64@ Get Target Routine Address from Load >> LLGTR R15,R15 Ensure R15 Has a Good Address >> OILL R15,X'0001' Ensure bit 63 is 1 >> BASSM R14,R15 Call PROG64 in AMODE 64 >> >> * >> *31 Bit Storage >> DS 0D >> PROG64$ DC CL8'PROG64 ' >> PROG64@ DC A(0) >> * >> STRUCT31 DS CL256 Paul, just in case you or someone decides to add AMODE 64 I'd change PROG64@ DC A(0) --> 2A(0) Andreas Geissbuehler
