Keep in mind that some are still running OS/VS2 R3.8 under Hercules, so they might want options to support *really* old architecture levels.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Assembler List <ASSEMBLER-LIST@listserv.uga.edu> on behalf of John McKown <john.archie.mck...@gmail.com> Sent: Monday, May 7, 2018 9:44 AM To: ASSEMBLER-LIST@listserv.uga.edu Subject: Re: storing and restoring condition code On Sun, May 6, 2018 at 2:39 PM, Seymour J Metz <sme...@gmu.edu> wrote: > Only in 24-bit mode. > > If you do a macro, make it mode and architecture sensitive. I used to do > something similar for code that could be assembler either for S/360 or for > S/370; the macros only used, e.g., ICM, if they were assembling the 370 > version.. > Just tapping in here, perhaps incorrectly. I would _strongly_ suggest that any HLASM code being written today use the SYSSTATE macro to specify it's "environment" requirements. Ref: https://secure-web.cisco.com/1XhrCofTaKBWD3zoY6GGkoO4f27Nf6hPPAAmJ1fixdDsEumNzj8AI-Vl9MvVFb9gHsP1sRKycghbXLBlFjt7qvndjg6DysTenm_KHlxfl-3Iegn_35QFoYMh--cgJwoMYHssKwRxkdEqNFXUstJc2CJUDuWzYEkrWu6pxVu2McJufJ_DHCNhHm82gW3eiC3l7pIPe4Xz9QrL8E57wF7-X2URXX71d0ybZ4r_a_6M_teG6eKUBbGqKzySzOSoHe13zv0Si8WMtt6My9b_kfSEln8hnHaRuysh2P9dW4LVpfjNlUZJnzz7qGOinq44xfzKf5ikXzhRaQ6_Q1pHix7904HSWX-8ilp5QYOu890HqRN8zhDZxlW0G3zgHJhcx4aHUIWGuMIUkiIGF9OtMwqoowKG8-671VPjkqxaYmg0l6C0NKN7ZW7Pw8qF3cCCjXpQv/https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2FSSLTBW_2.3.0%2Fcom.ibm.zos.v2r3.ieaa900%2Fstate.htm And any macros should use the macro variables set by that macro for their internal processing. E.g. what AMODE to assume for instructions; whether to use "base+index" or "relative" instructions; and so forth. What got me onto this is that the default ARCHLVL=0 causes the other IBM macros to use the "Branch On Condition" instruction instead of the "Branch On Condition Relative" instruction. Yeah, that's probably well known, but it messed me up until I read the above to try to understand why the IBM macros didn't do what I was wanting. > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > -- We all have skeletons in our closet. Mine are so old, they have osteoporosis. Maranatha! <>< John McKown
