This document describes the functionality of the Natural TIAM interface (product code NRT) and the operation and individual components of Natural in a TIAM environment.
This following topics are covered:
Natural Nucleus Components in the Installation documentation.
Installing Natural TIAM Interface on BS2000 in the Installation documentation.
Natural under BS2000 in the Operations documentation.
The Natural TIAM interface consists of two components:
the non-reentrant front-end part
the reentrant part NATRENT (default)
Both components are elements of the macro NAMTIAM and are
generated with two separate assembly runs; see also
Parameters in Macro
NAMTIAM, parameter CODE.
The front-end part is generally linked with the Adabas
interface module ADALNK to form the initialization routine which
is run once only during the establishment of a Natural under TIAM session.
During the initialization phase, based on the operand values of the
corresponding parameters, various functions, for example, the
establishment/connection to the Natural buffer pool, loading or linking of the
Natural nucleus, establishing the physical terminal buffer, are executed. The
front-end part must be loaded for each user (task).
The reentrant part NATRENT is linked as a modular
element to the Natural nucleus and contains various entry points for TP system
dependent routines (memory management, terminal communication, etc.). If a
shared Natural nucleus is to be used, the generated NATRENT module
must be linked to the front-end part.
The Natural nucleus is completely environment-independent (shared code) and must be loaded only once for all users.
The macro NAMTIAM has to be generated twice: for the
front-end part of the Natural TIAM Interface and for the reentrant part. For
which part it is generated is determined by the parameter
CODE in the
NAMTIAM macro.
For the generation of the front-end part and the reentrant part, a label
can be provided in the macro call to NAMTIAM. This label defines
the CSECT name, under which the module is stored in the module library. If no
label is specified, the name for the front-end part is NATFRONT
and the name for the reentrant part is NATRENT.
NATTESTF NAMTIAM CODE=FRONT,NUCNAME=NB2RENT,PARMOD=31
In this example, the CSECT name of the front-end part is defined as
NATTESTF.
NATTESTR NAMTIAM CODE=RENT,CLRKEY=K4,PARMOD=31
In this example, the CSECT name of the reentrant part is defined as
NATTESTR.
The individual parameters which can be specified in macro
NAMTIAM are explained below:
ADACOM |
ADDBUFF |
APPLNAM |
ATTKEY |
CLRKEY |
CODE |
CURPRO |
DELETE |
DYNPAR |
HCASK |
ILCS |
LF |
LINK |
LINK2/LINK3/LINK4
| NUCNAME
| PARMOD |
PFK |
REFRKEY |
REQMLOC |
SYSDTA |
TIMESTMP |
TRACE |
TTYLS |
TTYPS |
T975X |
USERID |
This parameter applies to the generation of the Natural environment-dependent nucleus (see in the Installation documentation). It determines which Adabas link module is to be used. Possible values are:
| Value: | Explanation: |
|---|---|
ADAUSER |
The module ADAUSER is linked to the
environment-dependent nucleus.
|
ADABAS |
The module ADAUSER is linked to the
environment-dependent nucleus.
|
ADALNK
|
The module This is the default value. |
In any case a resolve to the Adabas module library has to be given in the linkage step for the environment-dependent nucleus.
This parameter applies to the generation of the front-end part. It determines the additional number of pages for the terminal I/O buffer. Possible values are:
| Value | Explanation |
|---|---|
1 to 8 or no operand
|
Additional number of pages in 4 KB units. |
| no operand | By default, no operand is specified. |
This parameter applies to the generation of the front-end part. Possible values are:
| Value | Explanation |
|---|---|
name
|
The name (maximum 8 characters) of the Natural TIAM application. This name is part of the serialization ID when the Natural TIAM task is initialized. |
NATTIAM
|
This is the default value. |
This parameter applies to the generation of the reentrant part. Possible values are:
| Value | Explanation |
|---|---|
ON |
Pressing the K2 key on your terminal is intercepted
by an STXIT routine. Natural creates an ATTENTION
INTERRUPT and returns a NAT1016 error message.
|
OFF
|
Pressing the K2 key leads to a normal BS2000 interrupt. This is the default value. |
This parameter applies to the generation of the reentrant part.
This parameter can be used to define an alternate CLEARKEY in addition to LSP and DUE1. Possible values are:
| Value | Explanation |
|---|---|
K1 to K4, F1 to
F4, DUE2 |
Name of alternate CLEARKEY. |
K4
|
This is the default value. |
This parameter applies to the generation of both the front-end and reentrant parts.
It determines which part of the Natural TIAM Interface is to be generated. Possible values are:
| Value | Explanation |
|---|---|
FRONT
|
Indicates the generation/assembly of the front-end part. This is the default value. |
RENT |
Indicates the generation/assembly of the reentrant part. |
This parameter applies to the generation of the non-reentrant part.
It controls whether the cursor can be positioned to a protected field. Possible values are:
| Value | Explanation |
|---|---|
ON
|
The cursor cannot be positioned to a protected field. This is the default value. |
OFF |
The cursor can also be placed in a protected field (for example, for field-specific help functions). |
This parameter applies to the generation of the reentrant part. Possible values are:
| Value | Explanation |
|---|---|
ON
|
The setting of the profile parameter
This is the default value. |
OFF |
A dynamically loaded non-Natural program once loaded is kept for the duration of the whole Natural session. |
This parameter applies to the generation of the non-reentrant part. Possible values are:
| Value | Explanation |
|---|---|
DIALOG |
The dynamic parameters are read from terminal input. |
YES |
The dynamic parameters are read from terminal input.
YES has the same effect as DIALOG; it is kept for
compatibility reasons.
|
YES,LC or
DIALOG,LC |
Same as DIALOG or YES.
However, the parameter string is not translated to upper case.
|
SYSDTA |
The dynamic parameters are read from
SYSDTA.
|
SYSIPT |
The dynamic parameters are read from
SYSIPT.
|
FILE |
The dynamic parameters are read from a sequential file. The input
of this SAM file is interpreted as one single text string, which means that the
individual entries must be separated from each other by a comma, even at the
end of a line. Such a parameter file must be defined with a
See also the example given below. |
NO
|
No dynamic parameters are read from terminal input. This is the default value. |
Example for DYNPAR=FILE:
/FILE NAT.PARAMS,LINK=CMPRMIN
This parameter applies to the generation of the reentrant part.
It determines whether a user is asked to specify an output device each
time he or she produces a hardcopy (with terminal command
%H).
Possible values are:
| Value | Explanation |
|---|---|
ON
|
The user is asked to specify a device for each hardcopy. This is the default value. |
OFF |
The device used for the previous hardcopy is used again. |
This parameter applies to the generation of the reentrant part. Possible values are:
| Value | Explanation |
|---|---|
CRTE |
3GL subprograms are invoked with common runtime environment
convention. To be able to do so, the ILCS initialization routine
IT0SL# must be linked to the Natural
environment-dependent
nucleus (see the Installation documentation),
as shown below:
INCLUDE IT0SL#,SYSLNK.CRTE.010 RESOLVE,SYSLNK.CRTE.010 |
YES |
3GL subprograms are invoked with enhanced ILCS linkage
convention. To be able to do so, the ILCS initialization routine
IT0INITS must be linked to the Natural
environment-dependent
nucleus (see the Installation documentation),
as shown below:
INCLUDE IT0INITS,SYSLNK.ILCS RESOLVE,SYSLNK.ILCS |
NO
|
Standard processing applies. This is the default value. |
This parameter applies to the generation of the non-reentrant part.
With this parameter you specify the control character to be used for line advance when printing on the local printer. Possible values are:
| Value | Explanation |
|---|---|
X'zz' |
Control character. |
X'25' |
This is the default value. |
This parameter applies to the generation of the non-reentrant part. Possible values are:
| Value | Explanation |
|---|---|
name
(name, name
,...) |
The name(s) of programs and modules that are called from Natural programs and linked with the non-reentrant part must be specified with this parameter. See below. |
No default value is provided.
Conversely, the programs and modules whose names are specified must be
linked with the non-reentrant part, otherwise the application is put into
status SYSTEMERROR and all users are rejected with an error
message.
A TABLE macro call is performed for the specified programs
and modules, which enters their load addresses into the dynamic loader's link
table. It is therefore not necessary to dynamically load these programs when
they are called by Natural programs.
LINK=PROG1 LINK=(PROG1,PROG2,MODUL111)
These parameters apply for the generation of the non-reentrant part.
The parameters LINK2,
LINK3 and LINK4 are an extension
of the LINK parameter. Since an operand definition
cannot be longer than 127 characters (including parentheses), these parameters
are provided for cases where the operand of parameter LINK would
be too long. The syntax is analogous to that of LINK. Possible
values are:
| Value | Explanation |
|---|---|
name
(name,
name,...) |
The name(s) of programs and modules that are called from Natural programs and linked with the non-reentrant part must be specified with this parameter. |
No default value is provided.
NAMTIAM LINK=(PROG1,PROG2,...),
LINK2=(PROG54,...)
NAMTIAM LINK=(PROG1,PROG2,PROG3,PROG4)
This parameter applies to the generation of the non-reentrant part.
With this parameter you specify the name of the bounded, reentrant
Natural module. You must use this name for the Natural pool and load
information in macro ADDON (BS2STUB assembles macro
ADDON). Possible values are:
| Value | Explanation |
|---|---|
name
|
The name of the bounded, reentrant Natural module. |
NB2RENT
|
This is the default value. |
This parameter applies to the generation of both the non-reentrant part and the reentrant part.
The first part of this parameter
nn is used to define an addressing mode
(24-bit or 31-bit mode) for the Natural TIAM application.
The second part of this parameter
loc is used to define the front part
location of the Natural TIAM application. If you load the Natural
environment-dependent
nucleus (see the Installation documentation),
this must be defined in the environment-dependent nucleus link procedure as
follows:
LOADPT=*XS
LOADPT=X'address'
Possible values are:
| Value | Explanation |
|---|---|
nn |
24/31
|
loc |
BELOW/ABOVE
|
(31,ABOVE)
|
This is the default value. |
/EXEC TSOLINK PROG NATvrs,FILENAM=NATvrs,LOADPT=*XS,... TRAITS RMODE=ANY,AMODE=31 INCLUDE..../* PARMOD=(nn,loc) MUST BE IDENTICAL IN THE NON-REENTRANT AND REENTRANT PART
where vrs represents the
relevant product version.
This parameter applies to the generation of the non-reentrant part. It is used to set one of the following function-key modes:
| Value | Explanation |
|---|---|
(KN,
y) |
Either literals %K1 to %K20 and
send-key code Dܱ or send-key codes F1 to
F20 are loaded to the function keys; this depends on the device
type.
Where |
(KO,
y) |
The literals 01 to 20 and send-key
code F5 are loaded to the function keys.
|
(KS,
y) |
The literals A to T and send-key code
F5 are loaded to the function keys; in addition, with every output
message a dummy field is generated at the last two positions of the screen.
This dummy field is used to receive and pass the key value.
|
OFF |
No function key mode is generated. |
(KS,L) |
This is the default value. |
This parameter applies to the generation of the reentrant part.
It can be used to define a function key. If this function key is pressed, the last full Natural screen is refreshed. Thus it is possible to continue the dialog with Natural after the screen has been overwritten by messages from the operator or the operating system. Possible values are:
| Value | Explanation |
|---|---|
K1 to K14 |
Function key designation. |
NO |
No function key defined. |
K14 (keys ESC +
:)
|
This is the default value. |
The send-key code is not passed to the Natural application. The
interface sets the Natural key code to ENTER.
The key defined with the REFRKEY parameter must
be different from the one defined with the CLRKEY parameter.
This parameter applies to the generation of both the non-reentrant part
and the reentrant part in 31-bit mode (PARMOD=31).
It determines where the requested Natural work areas are to be allocated via request memory by the system. Possible values are:
| Value | Explanation |
|---|---|
BELOW |
All areas are requested below 16 MB. |
ABOVE |
All areas are requested above 16 MB. |
RES
|
All areas are requested depending on the location of the reentrant part. This is the default value. |
The REQMLOC parameter corresponds to the
LOC parameter of the BS2000 system macro
REQM.
This parameter applies to the generation of the front-end part. Possible values are:
| Value | Explanation |
|---|---|
PRIMARY
|
After reading of dynamic Natural parameters from
This is the default value. |
SYSCMD |
After reading of dynamic Natural parameters from
SYSDTA, SYSDTA is set to SYSFILE
SYSDTA=(SYSCMD).
|
This parameter applies to the generation of the non-reentrant part.
It determines the timebase for all system variables and timestamps derived from the machine time.
Possible values:
| Value | Explanation |
|---|---|
TIMESTMP=UTC |
Timebase is UTC (former GMT).
This is the default. |
TIMESTMP=LOCAL |
Timebase is the local machine time |
This parameter applies to the generation of the reentrant part.
With this parameter, you specify the number of a trace file and the maximal length of a trace print record. Possible values are:
| Value | Explanation | ||
|---|---|---|---|
(nn
,ll) |
nn :
|
01...99 |
nn is the number for the
SYSLSTnn trace file.
|
ll :
|
71...132 |
ll is the maximal length in characters of a trace print record. | |
| (99,71) | This is the default value. | ||
If any external Natural trace function is active, the trace records
will be written to SYSLSTnn. In this
case, the Natural TIAM driver creates the following trace file:
NATURAL.TRACE.TIAM.TTTT,SPACE=(30,3) SYSFILE SYSLSTnn=NATURAL.TRACE.TIAM.TTTT /* TTTT is the task sequence number
Before the Natural TIAM session is terminated, the trace file will be closed as follows:
SYSFILE SYSLSTnn=(PRIMARY)
This parameter applies to the generation of the non-reentrant part.
With this parameter you can adjust Natural's physical line length to different paper formats used with a telex machine. Possible values are:
| Value | Explanation |
|---|---|
nn
|
nn specifies the physical line size for TTY devices. |
80
|
This is the default value. |
This parameter applies to the generation of the non-reentrant part.
With this parameter you can adjust Natural's physical page size to different paper formats used with a telex machine. Possible values are:
| Value | Explanation |
|---|---|
nn
|
nn specifies the
physical page size (number of lines) for TTY devices.
|
24
|
This is the default value. |
This parameter applies to the generation of the non-reentrant part.
It is used to determine for which device types messages are to be optimized when using data stations which were generated in PDN as 9750. Possible values are:
| Value | Explanation |
|---|---|
9750, 9755, 9756 or
9763
|
Device type. |
9750
|
This is the default value. |
This parameter applies to the generation of the non-reentrant part. Possible values are:
| Value | Explanation |
|---|---|
SYSTEM or YES |
The Natural user ID is created by using the BS2000 user ID. |
USER or NO |
The Natural user ID is created by using the job name; that is, the
This is the default value. |
You use the macro ADDON (which assembles module
BS2STUB) either to generate the local common memory pools, or to
define attachment to the global common memory pools.
The programs CMPSTART and CMPEND start and
stop global common memory pools. They are described in the section
Global
Common Memory Pools in the Natural
Operations documentation.
A Natural TIAM application needs the following common memory pools:
Natural load pool
The linked reentrant part of Natural is loaded into this common
memory pool.
Natural buffer pool
The executable Natural programs and the Natural global data areas are
loaded into this common memory pool. Those compiled Natural programs whose
objects are reentrant are executed from this memory pool.
Natural/Adabas nucleus communication memory pool
Natural connects to an additional common memory pool which is
established by Adabas during startup.
The sum of the memory assigned to common memory pools, as well as the local area of the Natural environment-dependent nucleus (see the Installation documentation), must completely fit into the virtual user address space.
If the Adabas pool exceeds the user address space, error message 148 is produced during the OP command execution. At the beginning of the session, Natural issues the error message NAT8148 and, in the following session termination, the message NAT9989 (incorrect system file).
For TIAM applications, it is possible to use a common environment-independent nucleus. The rules that apply in this case are documented in the relevant section in the Natural Installation documentation.