Thank You ---------- Original Message ---------- From: Chuck Arney <ch...@arneycomputer.com> To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Re: Curosity Question Date: Thu, 1 Nov 2012 09:08:42 -0500
It divides by 36 and uses the remainder as a character digit because there are 36 possible characters in it's translate table. A-Z + 0-9 = 36 possible characters. Chuck Arney Arney Computer Systems -----Original Message----- From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] On Behalf Of esst...@juno.com Sent: Thursday, November 01, 2012 8:49 AM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Curosity Question Im providing some snipets of code which is used to derive a CICS Terminal ID from an address in storage. The Starting address resides above the line (31-bit). In the CALCID Routine below: The code snipet derives the Termid from the lower order 3 bytes of the storage address by dividing a F'36' (BASENUM). This value is further divided by F'36' (BASENUM) and then again (3Times in Total) This calcualtion produces the last three characters of the 4 Character Terminal ID. Im not sure I understand the significance of the F'36' (BASENUM). Can someone explain the significance of using a F'36' bsing used to divide into a 31 Bit Address ? I suspect it has to do with 24 Bit Addresses. Its not clear to me what that vaule is used. What is the significance of F'36' in the CALCID routine below.
