IBM System/360 System Programmer's Guide

You may alter the standard access reethod list (or create alternative
lists) to include access method modules supporting program controlled
interrupt scheduling (PCI), exchange buffering, track overflow, and the
UPDAT function of the OPEN macro-instruction.
To te· el igible for use with the resident access method option, access
method load modules must be reenteratle. The IToodule name must be of the
form IGG019xx, where xx can be any two alphanurreric characters.
CREATING PROCEDURE LIBRARY LISTS
You use the IEBUPDAT utility program to construct the required lists
of load module names in the procedure library. Standard rrember names
for these lists are:
IEABLDOO for the BLDL tatle option
IEAIGGOO for the access method option
These are the member names that the nucleus initialization program
will recognize at IPL time in the atsence of any other specification,
i.e., the operator communication facility was not incorporated.
Your input format (to IEBUPDAT) for the lists is the same for either
option, consisting of library identification followed by the load module
names. You use eighty character records with the initial or only record
containing the library identification.. Continuation is indicated ty
placing a comma after the last name in a recora and a non-blank
character in column 72. Subsequent records must start in column 16.
The initial record forrrat (with continuation) is:
1
[b ••• ]
SYS1.LINKLIB
SYS1.SVCLIB
72
b ... namel,name2,name3, .•. X
Subsequent records do not contain the library name.
SYS1.lINKLIB indicates that linkage library load module names follow.
SYS1.SVCLIB indicates that SVC library module names follow. You list
linkage-library load rrodule names in the same order that they appear in
the linkage library directory.
You may construct alternative lists for either option and place them
in the procedure library. Member names for these alternate lists are of
the form:
IEABLDxx for the BLDL option
IEAIGGxx for the resident access method option
where xx can be any twc alphanumeric characters.
Use of the alternative lists is indicated by the operator at IPL time
and requires that the corrmunication facility be present. When the
operator communication facility is present, the operator must indicate
for either or both options that the standard list is to be used; that
alternative lists are to be used; or that, for this IPL, the option(s)
will not b~used. In the latter case, no resident BLDL table or access
method routines will be placed in the nucleus.
EXAMPLE
The following coding illustrates the format and content of a BLDL
option list that might be used to support the resident BLDL table
option. The operator, at IPL time, would have to indicate the member
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IBM System/360 Specifications

General

Brand	IBM
Model	System/360
Category	Desktop
Language	English