Reference Guide

ZCOM Tables and Data Structures
ZCOM Header Structure
Chapter 3 47
HLTDSZE - Logical terminal table LDATA buffer size
This specifies the size of the LDATA buffer in the logical terminal tables.
This value is initialized from the Logical-Size parameter in the TTGEN
configuration file. Set this parameter to 212 for backward compatibility
with HP 1000 programs (so that the total size of Logical Terminal Table
with extension is 512 bytes).
HLTMAX - Number of logical terminal tables
Contains the maximum number of Logical Terminal Tables (LTT) which
may exist in the configuration. This value is initialized from the
Logical-Term parameter in the TTGEN configuration file.
HPTMAX - Number of physical terminal tables
Contains the maximum number of Physical Terminal Tables (PTT)
which may exist in the configuration. This value is initialized from the
Physical-Term parameter in the TTGEN configuration file.
HNCARD - Number of Mux interface tables
Number of Interface Tables (IFTs) which may exist in the configuration.
This value is initialized from the Interface-Table parameter in the
TTGEN configuration file. Note that there is one Interface Table (IFT)
per Mux card defined.
HNRESP - Number of response records
This field contains the number of response records in the ZCOM
subsystem. This value is initialized from the Program-ZLU parameter in
the TTGEN configuration file.
HNLTQL - Number of LTT queue labels
Number of entries in the queue label table, up to a maximum value of 20.
It is initialized by TTGEN to the number of Logical-Data statements
defined in the TTGEN configuration file. This value can be modified by
calling the zltqueue() routine.
HNLTSL - Number of LTT storage labels
Number of entries in the storage label table, up to a maximum value of
20. It is initially set up by TTGEN and subsequently maintained by the
LDM.