SNAX/HLS Management Programming Manual

Standard SNAX/HLS Definitions
Common Definitions
6–18 104708 Tandem Computers Incorporated
ZHLS–VAL–FSM–CHDX–RSP–RESET
indicates that no user message (SNA chain) is in progress.
ZFSM–EBCD
reports the SNAX/HLS implementation of FSM_EBCD. This FSM enforces a
check that prevents processing a message that carries end brackets
(END–TRANSACTION–IND = Y) from having the change direction indicator (CDI)
set (PREPARE–TO–RECEIVE = YES) at end of chain. In other words, at the end of
a chain that ends a transaction, the CDI cannot be set. Such a request violates SNA
protocol.
This field can have one of the following enumerated values:
ZHLS–VAL–FSM–EBCD–INC
specifies that a chain is being processed.
ZHLS–VAL–FSM–EBCD–NULL
indicates that this FSM is not yet initialized or is not used in the current
session.
ZHLS–VAL–FSM–EBCD–RESET
specifies that no chain is currently being processed.
ZFSM–IMM–RQ
reports the SNAX/HLS implementation of FSM_IMM_RQ_MODE. This FSM
enforces the immediate request protocol. In this mode, there can be only one
request outstanding that is awaiting a definite response.
This field can have the following enumerated values:
ZHLS–VAL–FSM–IMM–RQ–DR–CNCL
indicates that a CANCEL request has arrived.
ZHLS–VAL–FSM–IMM–RQ–DR–NCNCL
indicates that a definite response chain (other than CANCEL) has been
received but not yet responded to.
ZHLS–VAL–FSM–IMM–RQ–INC
indicates that a chain is being processed.
ZHLS–VAL–FSM–IMM–RQ–INC–RSP
indicates that a chain is being processed but the response (presumably
negative) has already been processed.