I lost half this thread, but wouldn't this whole deal be easier if you used a mix of SRL and SRDL in an even odd pair to separate the nibbles and then either a couple of OI's depending on the value of the nibble or a table "0-9A-F" to index into? That way you'd get the hex value to look up.
ALAN ATKINSON | SR. DIRECTOR SOFTWARE ARCHITECTURE T 212 633 5313 | aatkin...@mediaocean.com<https://webmail.mediaocean.com/owa/redir.aspx?C=1_58sqLAcDTMwKZpc1tNXWVDQTlmH0jWAS1Lk8vIVfjzpmZ34jPUCA..&URL=mailto%3aaatkinson%40mediaocean.com> 45 WEST 18TH STREET, NEW YORK, NY 10011 MEDIAOCEAN.COM | @TEAMMEDIAOCEAN The information contained in this message is intended for the addressee only and may contain confidential information, which if received in error you should not copy or distribute. Email transmission cannot be guaranteed to be secure or free of errors, so no reliance may be placed on this message without the written confirmation from an authorized representative. Any view expressed may not necessarily be the views of Mediaocean. ________________________________ From: IBM Mainframe Assembler List <ASSEMBLER-LIST@LISTSERV.UGA.EDU> on behalf of Seymour J Metz <sme...@gmu.edu> Sent: Friday, April 13, 2018 10:02:09 AM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Re: SDWA - SDWACMPC conversion Unpacking x'0123' gives you x'F0F132'; the OI then gives you x'F0F1F2'; what you want is x'F0F1F2F3'. Or with an UNNPK length of 4 you get x'F0F0F1F2'; still not what you want. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Assembler List <ASSEMBLER-LIST@listserv.uga.edu> on behalf of Keven <k...@k3n.us> Sent: Thursday, April 12, 2018 7:40 PM To: ASSEMBLER-LIST@listserv.uga.edu Subject: Re: SDWA - SDWACMPC conversion “Keep in mind that UNPK swaps bits 0-3 of the right byte with bits 4-7.” That’s why the Or Immediate is there; it enforces a zone nibble of 0xF for the last hex digit and ensures correct execution of the TRanslate. On Thu, Apr 12, 2018 at 3:00 PM -0500, "Seymour J Metz" <sme...@gmu.edu> wrote: Keep in mind that UNPK swaps bits 0-3 of the right byte with bits 4-7. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Assembler List on behalf of Keven Sent: Wednesday, April 11, 2018 4:15 PM To: ASSEMBLER-LIST@listserv.uga.edu Subject: Re: SDWA - SDWACMPC conversion Good point; I should have stuck with HEXTBL-240 but I decided last minute that hexadecimal notation would make for a better aesthetic and for some reason X’C0’ stepped forward instead of the apposite value. Using the UNPK/OI does mean no reading past the last byte of the value to be converted which may be desirable for a generalized implementation. Keven On Fri, Apr 6, 2018 at 9:22 AM -0500, "J R" wrote: As you're concerned with robustness, it might be better to address the translate table thus: TR ZONED,HEXTBL-X'F0' X'C1C2C3' > On Apr 5, 2018, at 18:29, Keven wrote: > > TR ZONED,HEXTBL-X'C0' X'C1C2C3'
