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From: F66204@BARILVM.BITNET (Shaul Wallach)
Newsgroups: comp.lang.asm370
Subject: CESD Data in Load Modules
Message-ID: <9103181751.AA01571@ucbvax.Berkeley.EDU>
Date: 18 Mar 91 17:51:39 GMT
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Reply-To: IBM 370 Assembly Programming Discussion List
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X-Unparsable-Date: Mon, 18 Mar 91 19:31:21 IST

I'm having a small problem understanding the CESD data the linkage
editor generates for a load module, in particular, bit 1 of the
flag byte (byte 13, starting from 1) in the 16 byte field. In my
version of MVS/370 Link Editor Logic this byte is described as
xxxxRRAA, where xxxx is "not used", and RRAA contain the RSECT,
RMODE and AMODE bits. The Assembler H V.2 Programming Guide
likewise documents only the RMODE and AMODE bits. However, many
CESD entries of my modules (when linked by the MVS/XA linkage
editor) contain a "1" as the second "x" bit in this flag. Does
anybody know what it means?

Thanks,

Shaul Wallach