⟦a4c412d04⟧

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T_A_B_L_E_ _O_F_ _C_O_N_T_E_N_T_S_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _P_A_G_E_

1. INTRODUCTION .......................................... 1

2. CONTROLS .............................................. 2

3. OPERATING PROCEDURES .................................. 6

4. GENERAL KEYBOARD DESCRIPTION .......................... 8
4.1 Character Keys ................................... 8
4.2 Program Controlled Keys .......................... 8
4.3 Local Control Keys ............................... 9

5. RC819 KEYBOARD ........................................ 10
5.1 Program Controlled Keys .......................... 10
5.2 Local Control Keys ............................... 10

6. RC822B KEYBOARD ....................................... 12
6.1 Program Controlled Keys .......................... 12
6.2 Local Control Keys ............................... 12

7. RC828B KEYBOARD ....................................... 15
7.1 Program Controlled Keys .......................... 15
7.2 Local Control Keys ............................... 15
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ii
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1_._ _ _ _ _ _ _ _ _I_N_T_R_O_D_U_C_T_I_O_N_ 1.

Figure 1: Visual display unit and keyboard.

The consoles/terminals described in this operating guide are all
based on the same type of visual display unit whereas the key-
boards have a different layout and different function keys
depending on the specific RC product number of the console/
terminal.

The visual display unit is referred to as VDU.
\f

F_ 2_._ _ _ _ _ _ _ _ _C_O_N_T_R_O_L_S_ 2.

Figure 2: Controls.

POWER ON/OFF - a mains power switch is located at
the left side of the VDU.

In console applications the switch
can be switched to its ON position,
and left in the ON position, at the
first time of operation. The VDU
will then be switched on/off as the
system is switched on/off.

1) Indicators - when an indicator is lit, the fol-
lowing is ment:

PR (P_rogram R_eady): the system responds in order to
show its availability to the user.
\f

CD (C_arrier D_etect): a feature of the communications
equipment, showing that the connec-
tion is established.

RS (R_eady To S_end): like the CD indicator, but showing
readiness for transmitting from the
keyboard.

Both the CD and the RS indicator
should be lit, when the terminal is
on-line.

2) BAUD RATE - when turning the knob, different
selector speeds in communications can be
selected.

Usually to be left untuched by the
operator as the setting is part of
the overall system tuning (determi-
ned by software).

3) Switch selectors - when pressed inwards the features
are selected as descriebed below.
The switches are self-locking, to
deselect the features, press once
more.

TAPE - for maintenance purpose only.

Causes all recieved characters to
be displayed including control
characters. The TAPE key on some
keyboards provides the same
feature.

DUP (D_u_p_lex) - in-position: full duplex;
out-position: half duplex.
\f

EIA - for maintenance purpose only.

In-position selects EIA (or V.24)
signals.

SPLIT - not used.

not labelled - not operable.

LOCAL - for maintenance purpose only.

PARITY ODD - in-position : odd parity;
out-position: even parity.

PARITY ON - in-position : parity on;
out-position: parity off.

The switches concerned with parity
usually are to be left untuched by
the operator as the setting is part
of the overall system tuning (de-
termined by software).

4) Display Screen Controls - adjustment of brigthness and con-
trast are provided by these two
control knobs.
- knob closest to the
front side: controls the brightness of the
displayed characters. (Sometimes
labelled BRIGHTNESS.)
- knob closest to the
front side: controls the contrast in displaying
characters. (Sometimes labelled
CONTRAST.)
\f

5) Loudspeaker Adjustment - the knob is used to adjust the
loudness of the acoustic signal
from the loudspeaker.

Note: The knob may be located at
the rear side of the keyboard.

The acoustic signal is heard when
receiving a BELL code.

On the RC819 and the RC828B it is
also used to produce the key-sound
which is heard when typing a key
(this feature can be switched off).
\f

F_ 3_._ _ _ _ _ _ _ _ _O_P_E_R_A_T_I_N_G_ _P_R_O_C_E_D_U_R_E_S_ 3.

Turn on the mains power with the POWER ON/OFF switch. When
applied as a console, the power can be controlled via the system
if the POWER ON/OFF switch is left in the ON position after first
time of operation.

The selector switches should normally be positioned as follows:

TAPE : out-position
DUP : in-position, or according to specifications
EIA : in-position
SPLIT : out-position
not labelled : out-position
LOCAL : out-position
PARITY ODD : according to specifications
PARITY ON : according to specifications

At the time the communications facilities are available for use,
the CD and ultimately the RS indicators will light. As long as
the terminal is on-line, these indicators should light.

The PR indicator will light whenever the system is available for
terminal operations. How to access the system and further in-
formation regarding terminal operations will be found in the
publications concerned with software systems and applications.

In a first-time operating situation and whenever convinient at
start of operations the following check procedures are performed:

1. The display is checked by switching the DUP selector to its
out-position, then select any of the character keys and hold
that key pressed down along with pressing down the REPT key.
On the RC819/828B it is sufficient just to keep the character
key pressed down as these models feature an auto-repeat
function.
\f

The screen should now be filled up with that character. (Note:
After checking, restore DUP selector to correct position.)

2. Adjust the brightness control until the raster is no longer
visible and then adjust the contrast control for the most
pleasing presentation. A moment spent on determining the
optimum setting for both brightness and contrast controls is
well spent, since this will reduce operator fatique. Remember
though, that the setting may need to be changed as the ambient
light level changes.

Adjustments of brightness and contrast are provided by the
control knobs located at the right side of the terminal.
\f

F_ 4_._ _ _ _ _ _ _ _ _G_E_N_E_R_A_L_ _K_E_Y_B_O_A_R_D_ _D_E_S_C_R_I_P_T_I_O_N_ 4.

The keyboards differ with respect to the RC product number. The
different types of keyboards used with the VDU are described in
the chapters following.

Commen to all keyboards is the presence of three types of keys:

- the character keys,
- the program controlled keys, and
- the local control keys.

4_._1_ _ _ _ _ _ _ _C_h_a_r_a_c_t_e_r_ _K_e_y_s_
4.1
The character keys are functioning as on an ordinary typewriter,
i.e. pressing a key will transmit the character to the system in
accordance with the engraving on the key cap. Also the keyboard
layout is like that of a typewriter. Different layouts may
appear, depending on the national character set applied.

4_._2_ _ _ _ _ _ _ _P_r_o_g_r_a_m_ _C_o_n_t_r_o_l_l_e_d_ _K_e_y_s_
4.2
It is important to note that the functions of the program con-
trolled keys will differ from system to system. Specific infor-
mation regarding function and usage should be found in the publi-
cations covering software systems and applications. The program
controlled keys are mentioned for each type of console/terminal
as they appear in general on that type regardless of possible
options.
\f

4_._3_ _ _ _ _ _ _ _L_o_c_a_l_ _C_o_n_t_r_o_l_ _K_e_y_s_ 4.3

The local control keys are provided in order to enable usual
typewriter functions, cursor controlling, etc. Note that a
general-purpose terminal contains few program controlled keys and
many local control keys opposite to a data entry terminal which
contains many program controlled keys and few local control keys.
Some of the local control keys (especially the cursor control
keys) may as well be affected by the software system applied.
\f

F_ 5_._ _ _ _ _ _ _ _ _R_C_8_1_9_ _K_E_Y_B_O_A_R_D_ 5.

5_._1_ _ _ _ _ _ _ _P_r_o_g_r_a_m_ _C_o_n_t_r_o_l_l_e_d_ _K_e_y_s_
5.1
ESC (E_s_c_ape)
BELL
LOCAL ATT
DELETE LINE - function determined by software
RETURN system
DELETE CHAR
RUB OUT

CTRL - used to generate control codes
which are not directly provided on
the keyboard by assigned keys.

The CRTL key is pressed down and
kept in the down-position, at the
same time an alphanumeric key is
pressed down - a control code cor-
responding to that alphanumeric
character will then be transmitted.
The alphanumeric character which
has to be used as well as the func-
tions which are caused, are deter-
mined by the software.

5.2
5_._2_ _ _ _ _ _ _ _L_o_c_a_l_ _C_o_n_t_r_o_l_ _K_e_y_s_

SHIFT - this key, in conjunction with
alphabetic or numeric keys, will
select the upper legend or the
upper-case character form.

SHIFT LOCK - when locked in the down position,
the key will select the upper-case
character legends. The key is self-
locking, to release press once more.
\f

PRINT ON - this code will cause all received
and transmited data to be directed
to the printer output.

The connecting of a terminal prin-
ter to the display terminal is
available as an option.

PRINT OFF - this code will remove the printer
output connection.

TAPE - for maintenance purposes only. Self-
locking key - to release press once
more.

Causes all received character to be
displayed including control charac-
ters.

FF (Form Feed) - function used with optional
printer; causing form feed.

LF (Line Feed) - function used with optional
printer; causing line feed.

Auto-repeat - the keyboard features an auto-
repeat function, i.e. pressing a
key down for longer than approx.
1 second will cause the character
automatically to be repeated.
\f

F_ 6_._ _ _ _ _ _ _ _ _R_C_8_2_2_B_ _K_E_Y_B_O_A_R_D_ 6.

6_._1_ _ _ _ _ _ _ _P_r_o_g_r_a_m_ _C_o_n_t_r_o_l_l_e_d_ _K_e_y_s_ 6.1

ESCAPE
LINE FEED
RETURN - function determined by the software
RUB OUT system.
BREAK
BACK SPACE

CTRL - used to generate control codes
which are not directly provided on
the keyboard by assigned keys.

The CTRL key is pressed down and
kept in the down-position, at the
same time an alphanumeric key is
pressed down - a control code cor-
responding to that alphanumeric
character will then be transmitted.
The alphanumeric character which
has to be used as well as the func-
tions which are caused, are deter-
mined by the software.

6_._2_ _ _ _ _ _ _ _L_o_c_a_l_ _C_o_n_t_r_o_l_ _K_e_y_s_ 6.2

SHIFT - this key, in conjunction with
alphabetic or numeric keys, will
select the upper legend or the
upper-case character form.

ALPHA LOCK - when locked in the down position,
the key will select the upper-case
character legends with no effect on
the numeric keys. The key is self-
locking, to release press once more.
\f

REPT (R_e_p_eat_) - when pressed down and kept in the
down position, any other character
key may be pressed down at the same
time and that character will be
repeatedly generated as long as
engaged.

HOME - will return cursor to the >home>
position (first character, first
line).

-' - causes the cursor to advance one
(FORWARD CURSOR) character position to the right. If
there are no character positions
left to the right, the cursor will
advance to the first character
position of the next line.

The cursor control codes (FORWARD
CURSOR and the following codes) are
non-destruct codes, i.e. the cursor
may pass an >occupied> position
without deleting the character of
that position.

<- - as FORWARD CURSOR, but to the left.
(BACK CURSOR)
- causes the cursor to move up one
(UP ROW CURSOR) row. Reaching the first row the
cursor remains there.

- as UP ROW CURSOR, but downwards.
(DOWN ROW CURSOR) Reaching the last row the cursor
will move the data up one row,
leaving the last row blank.
\f

TAB - horizontal tab, usually fixed to
every fourth character position.
Tab positions are fixed and do not
depend on the start position of the
cursor.

ERAS EOL - this code will erase all data from
(E_r_a_s_e to E_nd o_f L_ine) cursor position to end of line.

ERAS EOS - this code will erase all data from
(E_r_a_s_e to E_nd o_f S_creen) cursor position to end of screen.

CLEAR - this code will erase all data and
home the cursor.

PRINT - this code will cause all received
and transmited data to be directed
to the printer output.

The connecting of a terminal
printer to the display terminal is
available as an option.

PRINT OFF - this code will remove the printer
output connection.

TAPE - for maintenance purposes only.
Self-locking key - to release press
once more.

Causes all received character to be
displayed including control charac-
ters.

LOAD TAPE - for maintenance purposes only.
\f

F_ 7_._ _ _ _ _ _ _ _ _R_C_8_2_8_B_ _K_E_Y_B_O_A_R_D_ 7.

7_._1_ _ _ _ _ _ _ _P_r_o_g_r_a_m_ _C_o_n_t_r_o_l_l_e_d_ _K_e_y_s_ 7.1

ESCAPE
CLEAR
SUB FORM
DUP
CHAR
REC - function determined by software
FIELD system.
REC REL
ERROR REL
ENTER
BY-PASS
RECORD
LOG IN

7_._2_ _ _ _ _ _ _ _L_o_c_a_l_ _C_o_n_t_r_o_l_ _K_e_y_s_ 7.2

SHIFT - this key, in conjunction with alpha-
betic or numeric keys, will select
the upper lengend or the upper-case
character form.

SHIFT LOCK - when locked in the down position,
the key will select the upper-case
character legends. The key is self-
locking, to release press once more.

Auto-repeat - the keyboard features an auto-re-
peat function, i.e. pressing a key
down for longer than approx. 1 se-
cond will cause the character auto-
matically to be repeated.
\f

A_P_P_E_N_D_I_X_ _D_:_ _D_I_A_G_R_A_M_ _O_F_ _H_O_W_ _T_O_ _U_S_E_ _T_H_E_ _C_O_D_E_ _P_R_O_C_E_D_U_R_E_ _'_R_E_T_U_R_N_'_

parameters Action
txt1 txt2 check printout outputres cont Result Textmode Text
function bit 0-5 bit 6-11 bit 12 bit 13 bit 14 bit 15

1: No text output Zero Zero C O Zero 1 irrelevant Zero irrelevant
get new input (see be- (see be-
low) low)

2: Standard text output first second C O P 1 no. to be Zero irrelevant
get new input textno. textno. (see be- (see be- (see be- output
low) low) low)

3: Param. 'text' output Zero Zero C O Zero 1 irrelevant 1 byte 1-80 =
get new input (see be- (see bbe- text to
low) low) output

4: No text output Zero Zero Zero O Zero Zero irrelevant Zero irrelevant
termination (see be-
low)

5: Standard text output first second Zero O P Zero no. to be Zero irrelevant
termination textno. textno. (see be- (see be- output
low) low)

6: Param. 'text' output Zero Zero Zero O Zero Zero irrelevant 1 byte 1-80 =
termination (see be- text to
low) output

7: Replace command R1 R1 Zero O Zero Zero R1 R2 R2
termination (see be- (see be- (see be- (see below) (see below) (see below)
low) low) low)

8: Wait/signal Zero semaph. 1 wait = 0 Zero Zero irrelevant Zero irrelevant
semaphore ident. signal = 1
\f

RC 3600 DATA ENTRY
RELEASE 2
SUPERVISOR PROGRAMMING GUIDE

Second Edition
A/S REGNECENTRALEN February 1978
Marketing Department RCSL 43-GL 4351\f

Author: Birte Steckhahn
Technical Editor:

KEY WORDS: Data Entry, Superivsor programming guide.

ABSTRACT: This manual describes how to make a supervisor program
and explains the environment where the programs are
operated.

SUPPORTING AND REFERENCED DOCUMENTS:

Reservation

T_A_B_L_E_ _O_F_ _C_O_N_T_E_N_T_S_ ________________________________________P_A_G_E_

1 INTRODUCTION 5

2 DISC FILES6
2.1 Libraries6
2.2 Jobs6
2.3 Batches7

3 CODING OF A SUPERVISOR PROGRAM8

4 DESCRIPTION OF STANDARD CODE PROCEDURES9
4.1 Code Procedure Get Command9
4.2 Code Procedure Get Parameter10
4.3 Code Procedure Return12
4.4 Code Procedure Access15
4.5 Code Procedure Allaccess16
4.6 Code Procedure Connect File17
4.7 Code Procedure Get Next Item18
4.8 Code Procedure Get Next Item20
4.9 Code Procedure Delay21

5 PROGRAMMING HINTS23
5.1 Printout23
5.1.1 Spool-File23
5.1.2 Hardcopy Devices24
5.1.3 Opening of Actual Device24
5.1.4 How to make the Printout25
5.2 Program Termination26
5.3 Error Procedures26
5.4 Creation of a batch27

6 OPERATOR COMMUNICATION29

7 INSTALLATION OF NEW SUPERVISOR PROGRAMS30

APP. A STRUCTURE OF A LIBRARY31
APP. B STRUCTURE OF A JOB32
APP. C STRUCTURE OF A BATCH33
C.1 Batch Head 33
C.2 Records 34
C.2.1 Data Records 34
C.2.2 Register Records 35
C.3 Batch End Mark 36
APP. D DIAGRAM OF HOW TO USE
THE CODE PROCEDURE'RETURN'38\f

T_A_B_L_E_ _O_F_ _C_O_N_T_E_N_T_S_ ________________________________________P_A_G_E_

APP. E STANDARD TEXT NUMBERS40
APP. F PROGRAM EXAMPLE VOLUME41
APP. G PROGRAM EXAMPLE DUMP43
APP. H REFERENCES 46
APP. I INDEX47

F_ 1 I_N_T_R_O_D_U_C_T_I_O_N_

This manual describes how to make a supervisor program to the
Data Entry System, Release 2, and explains the environment
where the programs are operated.

The Supervisor is a part of RC 3600 Data Entry System, called
NANNY which handles loading of and communication with super-
visor programs and dialog with the operator, when the key sta-
tion is in supervisor mode. When it receives a command it looks
for the corresponding entry in the RC 3600 file system catalog,
loads the program to the supervisor area in memory, start the
program as a process and sends a message to the process con-
taining the command line typed by the operator.

Before starting to make a supervisor program, it is recommended
to glance through the following sections:

2, 3, 5.1, 5.3, and 6. \f

F_ 2 D_I_S_C_ _F_I_L_E_S_

2.1 L_i_b_r_a_r_i_e_s_

The Data Entry System has 5 libraries. They are physically disc
files containing a group of names.

The 5 libraries are:

1. Job Library
The library contains the names of all the jobs in
the system. The name of the file on the disc is
JBLIB. The structure of the library, see appendixA.

2. Format Library
The library contains the names of all the trans-
lated formats in the system. The name of the file
on the disc is FBLIB. The structure of the library,
see appendix A.

3. Subprogram Library
The library contains the names of all the trans-
lated subprograms in the system. The name of the
file on the disc is SPLIB. The structure of the
library, see appendix A.

4. Table Library
The library contains the names of all the trans-
lated tables in the system. The name of the file on
the disc i TBLIB. The structure of the library, see
appendix A.

5. Disc-table Library
The librry contains the names of all the created
disc-tabels in the system. The name on the file on
the disc is DTLIB. The structure of the library,
see appendix A.

2.2 J_o_b_s_

A job is a disc file containing a group of batch names, and for
each batch name a status word containing a status of the batch.
Each job name is included in the job library (JBLIB), and in\f

each batch belonging to a job is the name mentioned, too.
Further description of a job file, see appendix B.

2.3 B_a_t_c_h_e_s_

A batch is a disc file on the disc containing the data and re-
gister records together with some informations about the batch,
such as which job it belongs to. Every record then contains in-
formation about itself, such as a record status, and a number of
fields.

The informations about the batch is placed in the first block
in the file and this block is called the batch head. The infor-
mation about a record is positioned at the beginning of the re-
cord and is called the record head.

A batch is terminated by a batch end mark.

The exactly structure of a batch, see appendix C. \f

F_ 3 C_O_D_I_N_G_ _O_F_ _A_ _S_U_P_E_R_V_I_S_O_R_ _P_R_O_G_R_A_M_

All supervisor programs must be coded in the MUSIL programming
language and compiled using the MUSIL compiler. Output from the
MUSIL compiler is relocatable binary object code, which can be
added to the Data Entry System by loading it to disc (see sec-
tion 7).

The standard code procedures described in section 4 have been
implemented in order to make it possible for the Data Entry
Supervisor to
- transfer command lines and parameters to the super-
visor programs, and to get receipts from the pro-
grams before removal of the process after program
termination. (The procedures 'get command', 'get
parameter', and 'return').

- lookup, delete or insert a name in a library or
to search sequential through a library (the pro-
cedures 'find item', and 'get next item').

- read the fields in a batch (the procedures 'access'
and 'allaccess').

- slow down the supervisor program so that keying,
rekeying, and editing will be unaffected of the
run of a supervisor program ( the procedure 'de-
lay').

- to open a file for the printout (the text that must
be written on the hard copy device or on the super-
visor key station display) the procedure 'connect
file').

These procedures must be declared and called in the MUSIL pro-
gram and copied into the program at compilation time. See refe-
rence 1.\f

F_ 4 D_E_S_C_R_I_P_T_I_O_N_ _O_F_ _S_T_A_N_D_A_R_D_ _C_O_D_E_ _P_R_O_C_E_D_U_R_E_S_

4.1 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _G_e_t_ _C_o_m_m_a_n_d_

This procedure is used to receive a command line from the super-
visor in the Data Entry System.

The call of this procedure must be the first statement executed
in the supervisor program.

The procedure must be declared as follows:

procedure cmnd (var comline: string (112);
var return: integer);
comebody;

P_a_r_a_m_e_t_e_r_s_:_

Comline: Return parameter of type 'string'.

The length of the parameter must be at least 112
bytes.

The parameter contains a command line, typed in by
the keying operator, and must not be changed by the
program.

Return: Return parameter of type 'integer'.

The parameter contains the message address used by
the supervisor.

This parameter must be used when returning to the
supervisor (see section 4.3), and when delaying the
program (see section 4.9), and the value of the
parameter must therefore not be changed by the
program.

After a syntax check, made by the supervisor, each parameter to
the program will be packed in 'comline' as groups of information
as follows: \f

T_ 1. T_y_p_e_ _o_f_ _p_a_r_a_m_e_t_e_r_

2 bytes; where 0 = integer parameter
1 = text parameter
&_ 2 = termination

2. T_h_e_ _p_a_r_a_m_e_t_e_r_

2 bytes for integer parameters, and
6 bytes for text parameters, each parameter
terminated by at least one null character

3. T_e_r_m_i_n_a_t_o_r_ _f_o_r_ _p_a_r_a_m_e_t_e_r_

2 bytes, where 0 = space
1 = period
2 = termination

After a call of the procedure return (see section 4.3) it is
possible to get an empty command line (i.e. only ENTER has been
pressed on the supervisor key station). The contents of 'com-
-0--255- line' will then be: 0 255 if no syntax check has been made,
-0--2- or 0 2 after a syntax check (i.e. termination).

4.2 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _G_e_t_ _P_a_r_a_m_e_t_e_r_

This procedure is used to get a single parameter from the com-
mand line. The first call of this procedure in the program will
in parameter 'item' return the name of the file that later on
must be opened for printout (see section 5.1) with the procedure
'connectfile' (see section 4.6). The parameter 'value' describes
if the printout is to be produced on a hardcopy device or on the
supervisor key station display screen. The contents of those two
parameters must therefore be saved before a new call of the pro-
cedure 'get parameter'. The subsequent calls will return the pa-
rameters in the order in which they were typed on supervisor key
station.

The procedure must be declared as follows:
\f

T_ procedure gtpm (var comline: string (112)
var item: string (6)
var value: integer;
var kind: integer;
var sep: integer);
&_ comebody;

P_a_r_a_m_e_t_e_r_s_:_

Comline: Call parameter of type 'string'. See section 4.1.

Item: Return parameter of type 'string'.
The length of the parameter must be at least 6
bytes.
The parameter containsa text from the command line
if kind = 1.
The text is terminated by at least one null charac-
ter.
The first character in a text parameter must be a
letter followed by letters or digits.
The first time the procedure is called, this para-
meter contains the name of the printout file.

Value: Return parameter of type 'integer'.
The parameter contains an integer value if kind = 0.
An integer parameter may be typed on the supervisor
key station either in signed/unsigned decimal repre-
sentation, or in octal representation (identified by a
preceeding apostrophe). The first time the procedure
is called, this parameter indicats whether the print-
out must be produced on a hard copy device or on the
supervisor keystation display screen:
Value = 0: printout on display screen.
Value = 1: printout on hard copy.

Kind: Return parameter on type 'integer'.
The parameter contains the type of the returned para-
meter, where:
Kind = 0 means integer parameter.
Kind = 1 means text parameter.
Kind = 2 means that the procedure has been called
too many times (i.e. more that the number of
parameters in the command line), or that an
empty command line has been received (i.e.\f

only ENTER has been pressed on the super-
visor key station) after a call of the pro-
cedure return (see section 4.3).

Sep: Return parameter of type 'integer'.
The parameter contains an integer value which indi-
cates the terminator of the returned parameter,where:

T_Sep = 0 means space
Sep = 1 means period
Sep = 2 means termination = last parameter (i.e.
&_ ENTER on the supervisor key station).

T_ 4.3 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _R_e_t_u_r_n_

This procedure is used to return to the Supervisor in the Data
Entry System, either to get a new command line from the super-
&_ visor key station or to indicate that the program execution must
be terminated and the process must be removed from the super-
visor area in memory.

In case of termination the call of this procedure must be the
last statement executed in the supervisor program.

The procedure must be declared as follows:

T_ procedure return (var return: integer;
var result: integer;
var action: integer;
var textmode: integer;
var text: string (80 or 160));
&_ comebody;

P_a_r_a_m_e_t_e_r_s_:

Return: Call parameter of type 'integer'. See section 4.1.

Result: Call parameter of type 'integer'.
This parameter may contain a number, which may be
output on the supervisor key station display screen
as an octal number, when a standard text is output
(see parameter 'action'). Standard texts, see appen-
dix E. Result cannot be output after a text in the
parameter 'text'. \f

Action: Call parameter of type 'integer'.
The parameter contains information about a possible
standard text to be output on the supervisor key
station display screen, special actions to be taken
by the supervisor, and about continuation of the pro-
gram execution. The information must be packed as fol-
lows:
(txt1 shift 10) + (txt2 shift 4) + (check shift 3)+
(printout shift 2) + (outputres shift 1) + cont.

txt1: If a standard text must be output, the num-
ber of the first text must be placed here.
txt1 = 0 means that no text is output, a
text in the parameter 'text' is output or
a semaphore function has to be performed.

txt2:If a standard text is composed of two text
numbers the second text number must be
placed here. If a semaphore function has to
be performed, the ident of the semaphore
must be placed here (first semaphore = 1).
'txt2' = 0 means that only one standard
text number is used (indicated in 'txt1'),
no text is output, or that a text in the
parameter 'text' is output.

check: = 1 if the program execution must continue
('cont' = 1) and the new input from the
supervisor must be syntaxchecked or if a
semaphore function has to be performed.
= 0 if no syntax-check of new input or if
the program has to terminate ('cont' = 0).

printout: = 1 if
- a printout is produced and must beoutput
to the hard copy device or thesupervisor
key station display screen.
- a signal semaphore function has to be
performed.

= 0 if
- a printout must not be output (forexample
after an error) or a printout has not been
produced. \f

- a wait semaphore function has to be per-
formed.

outputres:= 1 means that the number in the parameter
'result' must be output on the display
screen after a standard text.
= 0 means that the parameter 'result' must
not be output after a standard text, or that
a text in parameter 'text' is to be output
('result' cannot be output after such a
text). In this case the contents of 'result'
are irrelevant.

cont: = 1 means that the program execution must
continue.
= 0 means program termination.

Textmode: Call parameter of type 'integer'.
This parameter describes the contents of parameter
'text'.
= 0 means that the contents of 'text' are irrelevant,
because the parameter 'action' is used for receipt
specification.
= 1 means that byte 1-80 of parameter 'text' contains
a text to be output on the supervisor key station dis-
play screen instead of a standard text.
= 2 means that byte 1-80 of 'text' contains a text to
be output and byte 81-160 of 'text' contains a replace
command.

Text: Call parameter of type 'string'.
The length of the string must be 80 or 160 bytes, de-
pending on the value of 'textmode'.
Both a text to be output on the supervisor key station
display screen and a replace command must be termina-
ted by a null-character.
A replace command is a supervisor command, i.e. a call
of another supervisor program with termination of the
first program in the same way as if the first program
terminates, and the operator calls the secondprogram.

A replace command cannot change the output device for
the printout. If a program is called with output of
printout on printer via spool-file, and this program\f

terminates with a replace command, the new program
will place the printout on the printer via spool-file,
too.

In appendix D a diagram is showing how to use the procedure.

T_ 4.4 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _A_c_c_e_s_s_

The procedure is used to read transfer fields in the data
records in a batch. The zone connected to the batch must be
opened for reading and positioned just after the block with
&_ the batch head, i.e.
-batchname- zone.zname:= batchname ;
open (zone, 1);
! read and check the batchhead!
setposition (zone, 0, 1);

Between the first and the last call of the procedure the zone
may not be changed by calling other procedures using the zone.

The procedure will skip register records and the fields with
status 'no transfer' (register records and field states are
described in appendix C).

The procedure must be declared as follows:

T_ procedure access (file z;
var field: string (80);
var number: integer;
var status: integer;
var subname:string (2));

&_ comebody;

P_a_r_a_m_e_t_e_r_s_:

z: Call and return parameter of type 'file'.
The parameter must be defined as a disc-file, i.e.
kind = 62 and share length = 512.z. zname must be a
name of a batch, e.g. n_o_t_ a name of a job or a table.

Field: Return parameter of type 'string'.
The length of the string must be 80 bytes. \f

The contents of 'field' is a field with the status
transfer, if the parameter 'number' is greater that
or equal to zero. 'Number' then indicates number of
characters in the field.

Number: Return parameter of type 'integer'.
The parameter describes what has been read:
-_0 -0: a field has been read.
'Number' contains the number of characters
in the field which is placed in 'field'. The
parameter 'status' contains the field status
and the parameter 'subname' is undefined.

=-1: a record head is read.
'Field' is undefined, 'status' contains the
record status and 'subname' contains the name
of the subformat, which has been used when
keying the record.

=-2: a record end is read.
'Field', 'status' and 'subname' are all
undefined.

=-3: a batch end mark is read.
'Field', 'status' and 'subname' are all
undefined.

Status: Return parameter of type 'integer'
The parameter contains the record status if a re-
cord head is read and the field status if a field
is read. Otherwise 'status' is undefined.

Subname: Return parameter of type 'string'.
The length of the string must be 2 bytes.
If a record head is read the parameter in the first
byte contains the name of the subformat, which has
been used when keying the record. The second byte
is a null-character.

4.5 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _A_l_l_a_c_c_e_s_s_

This procedure is used in the same ways as the procedure
'access', and returns nearly the same. The only differences
between 'access' and 'allaccess' are: \f

- 'allaccess' is defined with the name allacinstead
of access.
- 'allaccess' returns fields with status notransfer,
which are ignored by 'access'.

The procedure is defined:

T_ procedure allac (file z;
var field: string (80);
var number: integer;
var status: integer;
var subname: string (2));
&_ comebody;

P_a_r_a_m_e_t_e_r_s_:_

Please consult section 4.4.
T_

4.6 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _C_o_n_n_e_c_t_ _F_i_l_e_

This procedure is used for opening the file where the printout
must be placed (a work-file on the disc or one of the hardcopy
&_ devices).

The procedure looks up the catalog entry given by the name. If
the entry is found and is a file descriptor (if the name is one
of the names of hardcopy devices), the information about device
name, mode, kind, file, block, and give up mask are transferred
to the zone variables.

If the name is the name of the work-file, a 'createentry' is per-
formed (because the entry is deleted by the supervisor before
calling the program).

Before return to the MUSIL program the zone is opened with the
mode specified.

The procedure must only be called oned in a program.

The procedure must be declared as follows:

T_ procedure connec (file) z;
const outmode: integer;
const name: string (6));
&_ comebody;\f

P_a_r_a_m_e_t_e_r_s_:_

z: Call and return parameter of type 'file'.
The parameter must be defined as as file with the
sharelength = 512.

Outmode: Call parameter of type 'integer'.
The parameter must be set to output mode, i.e.
outmode:= 3;
before call of the procedure.

Name: Call parameter of type 'string'.
The length of the string must be 6 bytes.
The contents of 'name' must be the name of the file
where the printout must be placed, (this name is re-
ceived when the procedure 'get parameter' (section
4.2) is called the first time).

T_ 4.7 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _F_i_n_d_ _I_t_e_m_

This procedure is used to search for a name, to insert a name
&_ or to delete a name in a library or a job.

The procedure must be declared as follows:

T_ procedure fitem (file z;
const optype: integer;
const length: integer;
const name: string (6));
&_ codebody;

N_O_T_I_C_E_:_
In the MUSIL program there must be two integers defined just
after the string 'name', for an extraword and a result, because
the procedure uses those two integers, as they were parameters:

If z.zname is a name of a job, i.e. 'name' is a name of a batch
(specified by 'length' = 4, see 'length) the status of the batch
taken from the job is placed in the first integer, called 'extra-
word', and the result of the call of the procedure is placed in
the second integer, called 'result'.
\f

P_a_r_a_m_e_t_e_r_s_:

z: Call parameter of type 'file'.
The parameter must be defined as a disc-file, i.e.
kind = 62 and sharelength = 512.
z. zname must be the name of the library or the job,
where the procedure must look for 'name', insert it or
delete it. The zone must be opened for reading before
a call of the procedure.

Optype: Call parameter of type 'integer'.
The procedure first searches through the library or
the job for 'name' and then looks at 'optype' to
decide the action to be taken:

= 0: search item:
If 'name' is found, 'result' is set to 0,
otherwise to 1.
If 'name' is a batch name the status from
thejob is placed in 'extraword'.
= 1: delete item:
If 'name' is found, the name is deleted and
'result' is set to 0, otherwise to 1.

= 2: insert item:
If 'name' is not found, the name is inserted
and if 'name' is a name of a batch, the con-
tents of 'extraword' is inserted after 'name'
and 'result' is set to 0. If 'name' already
exists, 'result' is set to 1.

Length: Call parameter of type 'integer'.

This parameter describes how many words in the library
or the job, the item must use. If z. zname is a name
of a job, 'length' must be 4 (3 words for the name and
1 word for the status). If z. zname is a name of a li-
brary (job, format, subprogram, table, or disc table
library), 'length' must be 3.

Name: Call parameter of type 'string'.

The length of the string must be 6 bytes, and the con-
tents must be the name to search, insert or delete in
the job or the library. A name must be a letter fol-
lowed by not more than 4 letters or digits and termi- \f

nated by at least one null-character.

Extraword: This is not a parameter used in the call of the pro-
cedure, but is an integer defined just after 'name' in
the variable section in the MUSIL program.
If 'length' = 4 the batch status from the job isplaced
here if 'optype' = 0, and if 'optype' = 2 the contents
of 'extraword' is inserted after 'name'.

Result: This is not a parameter used in the call of the pro-
cedure, but is an integer defined as second integer
after 'name'.
The contents of 'result' is 0 if the call of the pro-
cedure causes no errors, otherwise 'result' is set to
1.

T_ 4.8 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _G_e_t_ _N_e_x_t_ _I_t_e_m_

This procedure is used to run sequential through a job or a li-
brary to get all the names one by one, e.g. run through a job in
&_ order to dump all the batches.

The zone with the job or library name must be opened for read-
ing and positioned on the first block before the first call of
the procedure.

The procedure must be declared as follows:

T_ procedure getnex (file z;
const length: integer;
var name: string (6);
var extraword: integer;
var status: integer);
&_ codebody;

P_a_r_a_m_e_t_e_r_s_:_

z: Call and return parameter of type 'file'.
The parameter must be defined as a disc-file, i.e.
kind = 62 and sharelength = 512. z. zname must be the
name of the job or the library containing the names to
be read.

Length: Call parameter of type 'integer'. \f

This parameter describes how many words in the library
or the job one item uses. If z. zname is a name of a
job, 'length' must be 4, and if z. zname is a name of
library, 'length' must be 3.

Name: Return parameter of type 'string'.
The length of the string must be 6 bytes. The contents
of 'name' after a call of the procedure is the next
name read in the job or the library.
Extraword: Return parameter of type 'integer'.
If z. zname is a name of a job, the batch status from
the job is placed here. If z. zname is a library name
it is undefined.

Status: Call and return parameter of type 'integer'.
Beforethe first call of the procedure, 'status' may be
undefined, but before the second and all the other
calls it must have one of the following walues:

=0: The disc zone has been used for something else,
i.e. the zone has been destroyed and the jobor
library name must be inserted in z. zname before
calling the procedure.

=1: The disc zone has not been used after lastcall.

=-1: This value must be used in the first call with
a new job or library name in z. zname afterthe
procedure has been used on one job orlibrary.

When the procedure returns to the MUSIL program,
'status' has the values:

=0: The end of the job or library has not been
reached yet.

=1: The end of the job or library has beenreached.
'Name' and 'extraword' are undefined.

T_ 4.9 C_o_d_e_ _P_r_o_c_e_d_u_r_e_ _D_e_l_a_y_

This procedure is used to slow down a supervisor program with
&_ many disc transports in order to let keying operators work with-
out speed-reduction, so the procedure must be used in programs,\f

that read or write on the disc.

The procedure makes the MUSIL program wait a number of timer-
periodes(one timer-period = 20 milliseconds) standing in mess3
in a message buffer. The number is calculated by NANNY and de-
pends on number of key stations in key, rekey and edit mode. The
procedure is only effective if the supervisor key station has
come to the supervisor mode by the control command SUPERVISOR
SLOW. If the control command SUPERVISOR is used, mess3 is always
set to 0.
The procedure is declared as follows:

procedure delay (var delayed: integer;
var bufaddr: integer);
comebody;

P_a_r_a_m_e_t_e_r_s_:_

Delayed: Return parameter of type 'integer'.
After a call of the procedure 'delayed' will contain
the number of timer-periods the program has waited.

Bufaddr: Call parameter of type 'integer'.
The parameter must contain the address of that message
buffer, where mess3 contains the number of timer-
periods, the calling program must wait. This address
is the return-value of the parameter 'return' in the
code procedure 'get command' (see section 4.1). \f

F_ 5 P_R_O_G_R_A_M_M_I_N_G_ _H_I_N_T_S_

5.1 P_r_i_n_t_o_u_t_

A supervisor program can produce a printout in the form of a
survey, log, listing, and the like. The section describes the
administration of the printouts and how to make a printout.

The printouts can be output in three ways:

T_
HARDCOPY
(3) DEVICE

SUPERVISOR WORKFILE SPOOLFILE
PROGRAM (1),(2) ON (2) ON(2)
DISC DISC

(1)
DISPLAY
SCREEN
&_

(1) On the supervisor key station display screen.
(2) On a hardcopy device (e.g. line printer or operator console
device) via a so-called spool-file.
(3) Directly on a hardcopy device.

The way printout is to be produced is selected by the operator
when the supervisor command is entered.

T_ Examples:
SYSTEM DISC Printout on display screen.

SYSTEM.S DISC Printout on hardcopy device via
spool-file.

SYSTEM.L DISC Printout directly on hardcopy
&_ device.

T_ 5.1.1 S_p_o_o_l_-_f_i_l_e_
The spool-file can contain printouts from several supervisor
programs and the operator can stop and start printing from the
&_ spool-file. \f

This means that the hardcopy device may be used for non-data
entry functions (for example conversion) simultanously with
production of some data entry printouts to be printed later.

T_ 5.1.2 H_a_r_d_c_o_p_y_ _D_e_v_i_c_e_s_
When a system-tape is installed some catalog entries are created
to describe hardcopy devices. It can be such as the line printer
&_ or the operator console device (TTY).

The entries contain information about the device: device name,
mode, kind, file, block, and giveup-mask.

The names of the entries are:

HCOPY Normal hardcopy device
It depends on the actual configura-
tion, but can be the line printer
for instance.

HLPT Line printer

HLPT1 Second line printer

HSP Serial printer

HSP1 Second serial printer

HCPT Charaband printer

HCPT1 Second charaband printer

HTTY Operator console device (TTY)

The current hardcopy device can be changed to another one by the
SPOOL NEWDEVICE - command (see reference 2, section 9).

T_ 5.1.3 O_p_e_n_i_n_g_ _o_f_ _A_c_t_u_a_l_ _D_e_v_i_c_e_
When a supervisor program is called, the Supervisor finds out,
where the printout must be placed. If it is in the work-file,
this file is deleted and later on created again (by code
&_ procedure 'connect file').
When the code procedure 'get parameter' (section 4.2) is called
the first time the name of the work-file or the name of the
catalog entry describing current hardcopy device is returned in
the parameter 'item'. In parameter 'value' the procedure returns\f

if the printout must be written on the display screen or on a
hardcopy device:

T_ value = 0: display screen
value = 1: hardcopy device.
&_
It is necessary to know the length of the lines to be written
because the display screen has space for 80 characters, and a
line printer has space for 132 characters.

To open the file the code procedure 'connect file' is used (see
section 4.6). This procedure looks up the name in the catalog.
If the entry is found, it is one of the names mentioned in
section 5.1.2, and the procedure moves the device name, kind,
and giveup-mask to the zone and or's the mode found with the
mode given in the call of the procedure. If the entry is not
found, it is the name of the work-file, which was deleted when
calling the supervisor program. The procedure then creates an
entry as a disc file. Hence it is very important that this
procedure is called only once in a program. Finally the
procedure opens the file and positions it at file and block.

T_ 5.1.4 H_o_w_ _t_o_ _m_a_k_e_ _t_h_e_ _P_r_i_n_t_o_u_t_
A text string is written in the printout file by using the
standard procedure OUTTEXT. This procedure stops writing the
&_ text string in the zone, when it meets a null-character, i.e.
all strings to be used by OUTTEXT must be terminated by at least
one null-character. The character set to be used must be the
ASCII code. When the printout is output to the actual device it
is automatically converted if the output device does not use the
ASCII code (for example a line printer). The last character to
be output in the printout before closing the zone must be an end
medium character: value 25.

The last statement to be executed in a supervisor program must
be a cll of the code procedure 'return' (section 4.3) with the
parameter 'cont' equal to 0. If the program has made a printout
with the end medium character as the last one, the parameter
'printout' must be set to one. This informs the Supervisor that
a printout has been made, and if it is written in the work-file,
the Supervisor copies the printout from the work-file to the
display screen or to the spool-file and from the spoo-file to
the hardcopy device. The copying is stopped when the end medium
character is met. If the printout is copied to the display
screen and a line contains more than 80 characters, theSuper-\f

visor automatically inserts a 'new line'-character after the
first 80 characters.
All control characters (i.e. value less than 32 = SP) are
ignored except 'new line' characters, this means that 'form
feed' characters, for instance, has not effect.

T_ 5.2 P_r_o_g_r_a_m_ _T_e_r_m_i_n_a_t_i_o_n_

Before the program returns to the Supervisor by a cll of the
code procedure 'return' with the parameter 'cont' = 0, all
&_ processes (i.e. driver- and area processes) which have been used
by the program must be released (i.e. close (zone, 1);). Before
closing the printout file, an end medium character must be
OUTTEXTed. When using the code procedure 'return' it is
important to set the values of the parameters in the right
manner.

Parameter 'action':
'cont' must be zero
'check' must be zero
'printout' must be 1 if a printout with an
end medium character has been
mode, otherwise to zero.
'outputres' must be set to 1 if 'txt1' and
'txt2' describe standard texts and
if the contents of parameter
'result' must be output on the
display screen after the standard
texts. Otherwise 'outputres' must
be set to zero.

Parameter 'textmode':
If the parameter is not initialized in the
right way, it may causes some error-messages
from the Supervisor.

T_ 5.3 E_r_r_o_r_ _P_r_o_c_e_d_u_r_e_s_

After an error which cannot be corrected by the operator or no
correction is wanted, the program execution must be terminated
&_ as described in section 5.2. When the procedure CLOSE is called
a program loop may occur after an output error because closing
output zone may result in a new output message which will call\f

the giveup-procedure again and so on.

This program loop can be avoided in two ways:

1: The mode in erroneous zone is set to zero before
closing the zone. This will prevent further output
messages and the procedure CLOSE will only release the
process, but some output data may be lost. (This
action is shown in the program example in appendix F).

2: An error-counter is used to count number of errors.
When a zone is opened the counter is set to zero. If
the giveup-procedure is called the counter is
increased by one and the program tries to close the
zone. This may result in one of two things:
- the giveup-procedure is called once more and the
counter is increased by one
- the error is corrected and the zone will be closed.

If the error counter then gets greater than for
example N the CLOSE-call cannot succeed and it is then
skipped.

If a call of CLOSE is succeeded the error-counter is
then set to N. (This action is shown in the program
example in appendix G, with N = 4).

T_ 5.4 C_r_e_a_t_i_o_n_ _o_f_ _a_ _B_a_t_c_h_

If a batch is created by a supervisor program there are diffe-
rent things to remember:
&_ (The structure of a batch, see appendix C)

a) in the batch head:
- job name must be a name of a job file. If the job does not
exist already, the job name must be inserted in the job li-
brary (JBLIB) and a file with the job name must be created
and the contents must be set according to the specifica-
tions given in appendix B.
- the format name must be a name of an existing translated
format if the batch later on must be rekeyed or edited.
- the batch name must be the same name as the name of the
file where the batch is placed.
- the batch status word must be set to closed, i.e. bit 0 = 1\f

(status = 100000DD8UU) or to closed and invalid, i.e. bit 0 = 1
and bit 12 = 1 (status = 100010DD8UU). If the invalid bit (bit
12) is set, some of the field in the batch may be invalid.
- number of blocks (word 14) and number of records (word 15)
must be calculated and inserted in the batch head.
- end format (word 26) must be set to 100000DD8UU as if the 'end'-
statement in the format was executed.
- the other words in the batch head must be set to zero.

b) in the data record head:
- subname must be the name of a subformat in the format spe-
cified the the batch head.
- the length of the record and the record number in the batch
must be calculated and inserted.
- the other bytes must be set to zero. The record status can
be set to non-zero, if the record must not be dumped.
(Normally the supervisor program 'dump' will skip records
with invalid status).

c) in the data record end:
- subname must be the same as subname in the record head.
- record end mark must be one byte with the value 28DD10UU.

d) in the fields:
- the field status can be set to non transfer if the data in
the field must not be dumped or transferred.
- the field end mark must be one byte with the value 27DD10UU.

e) register records:
- the register records may n_o_t_ be made by a supervisor
program.

If a batch, made by a supervisor program, must be corrected with
EDIT the batch must contain register records. They are made in
this way:

1) leave supervisor mode with the supervisor command STOP
-batchname- 2) key: EDIT batchname
3) key: END

This will causes the editor to run through the batch and make
the register records. At the same time the states of the fields,
the records and the batch will be set according to the format
(specified in the batch head).

After this the batch can be corrected with EDIT.\f

F_ 6 O_P_E_R_A_T_O_R_ _C_O_M_M_U_N_I_C_A_T_I_O_N_

When a supervisor program has been called from the supervisor
key station, the communication with the program may be done
either from the supervisor key station, if the program uses the
code procedures 'get command', 'get parameter' and 'return', or
from the RC 3600 operator console device (TTY), if the program
uses the standard operator communication procedures described in
reference 1.

The latter communication is recommended for greater supervisor
programs such as print image programs, paper tape conversion
programs etc., because it gives a possibility for temporary
halts of the program execution caused by the operator.

When using the code procedures 'get command', 'get parameter',
and 'return' all the communication between the program and the
operator is automatically written in the log-file by the
Supervisor. This means that the supervisor program has not to
make any action to write in the log-file. (The log-file can be
dumped and printed by the standard supervisor programs DUMPSTAT
and LISTLOG, see reference 2, section 9).

As can be seen in appendix F communications via the key station
has been made possible by
1) calling the codeprocedure 'return' with 'cont' = 1
2) calling the codeprocedure 'get command' this will
wait until the operator has answered the question
asked for with 'return'.

The answer is given in 'comline' as a return
parameter from 'get command'
- if the answer has been syntax-checked by the
Supervisor the items from the answer must be
picked up by using 'get parameter'.
- if the answer has not been syntax-checked
'comline' holds a normal text string.
\f

F_ 7 I_N_S_T_A_L_L_A_T_I_O_N_ _O_F_ _N_E_W_ _S_U_P_E_R_V_I_S_O_R_ _P_R_O_G_R_A_M_S_

A new supervisor program is put into the Data Entry System by
means of the standard supervisor program PUT. In this way it is
not necessary to generate a new system tape every time a new
supervisor program has been made.

The binary supervisor program (i.e. the output from the MUSIL
compiler) may be read from either paper tape or magnetic tape.

The supervisor command for PUT is fully described in reference
2, section 9. Please consult this description.\f

F_ A_P_P_E_N_D_I_X_ _A_:_ _S_T_R_U_C_T_U_R_E_ _O_F_ _A_ _L_I_B_R_A_R_Y_

The five libraries in the Data Entry System are structured in
the same way. Each of them is an extensible disc file containing
a group of names with the same characteristics. A disc file is a
collection of blocks. The first two bytes in the first block is
a counter containing number of names in the library. The first
two bytes in other blocks are undefined. The rest of each block
is divided into groups of 6 bytes, each group containing one
name. One block can in this way contain 85 names (one block =
512 bytes: two bytes for counter or undefined, 510 bytes for
names of 6 bytes = 85 names).

A name consists of a letter followed by not more than 4 letters
or digits terminated by at least one null-character.

T_ Examples:

name BAJ01 name B75
1. byte B A 2. byte 1. byte B 7 2.byte
3. byte J 0 4. byte 3. byte 5 null 4. byte
&_ 5. byte 1 null 6. byte 5. byte null null 6. byte

When a name is deleted by the code procedure find item (section
4.7) the first two bytes in the name are overwritten with null-
characters and the counter is decreased by one. This makes a
free space in the library. When a name is inserted in the
library by the same procedure, it is inserted on the first free
place (and n_o_t_ after all the other names) and the counter is
increased by one.
\f

F_ A_P_P_E_N_D_I_X_ _B_:_ _S_T_R_U_C_T_U_R_E_ _O_F_ _A_ _J_O_B_

A job is an extensible disc-file containing a group of batch
names and for each batch name a status of the batch.

The first two bytes in the first segment is a counter containing
number of batches in the job. The first two bytes in the other
blocks are undefined. The rest of each block is divided into
groups of 8 bytes, each group containing one batch name and the
status of the batch. One block can in this way contain 63 batch
names with states (One block = 512 bytes: two bytes for counter
or undefined, 510 bytes for names and states of 8 bytes = 63
names, rest 6 bytes).

A name in a job (a batch name) is structured in the same way as
a name in a library (see appendix A).

The status of a batch in a job tells, if the batch is used for
keying, rekeying or editing.

T_ status = 0: the batch is not in use.
status = 1: the batch is used for keying.
status = 2: the batch is used for rekeying.
status = 3: the batch is used for keying and
rekeying.
&_ status = 4: the batch is used for editing. \f

F_ A_P_P_E_N_D_I_X_ _C_:_ _S_T_R_U_C_T_U_R_E_ _O_F_ _A_ _B_A_T_C_H_

A batch is a disc-file containing the records with the fields.
The records are stored from the second block and forward in the
file. The first block contains some information about the batch
and is called the batch head. The batch is terminated by a batch
end mark.

Example:

T_ block 0 block 1 block 2 block 3 block 4 block 5

&_batch head rec 1 rec 2 rec 3 rec 4 rec 5 rec 6 rec 7 batch end mark

T_ C.1 B_a_t_c_h_ _H_e_a_d_

The contents of the batch head is:

word 0-2: Job name: the name of the job, to which the
&_ batch belongs.
word 3-5: Format name: The name of the translated
format to be used when keying, rekeying and
editing the batch.
word 6-8: Batch name.
word 9: Batch status (see below).
word 10: Byte count in old batch last block.
word 11: Byte count in work batch last block.
word 12: Block address of last register record.
word 13: Byte address of last register record.
word 14: Number of blocks in the batch inclusive the
batch head.
word 15: Number of data records in the batch.
word 16: Number of rekeyed records.
word 17: Number of invalid records.
word 18: Activation time, real time clock 1.
word 19: Activation tiem, real time clock 2.
word 20: Block count in old batch.
word 21: Block count in work batch.
word 22: Name of current subformat.
word 23: Current record number in old batch.
word 24: Current record number in work batch.
word 25: Maximum number of records in work batch.
word 26: End format: = 100000DD8UU indicates thatthe\f

'end'-statement in the format is executed.

The rest of the batch head is not in use yet, i.e. must
all be zeroes.

The batch status word is 16 bit, where the value of all the
bits, except the last one (bit 15) gives a status:

all bits = 0: the batch is empty
bit 0 = 1: the batch is closed
bit 1 = 1: the work batch is closed
bit 2 = 1: the batch is editing.
bit 3 = 1: the batch is rekeying.
bit 4 = 1: the batch is keying.
bit 5 = 1: the batch must be rekeyed (the parameter
'rekey' has been used in the 'set'-command).
bit 6 = 1: the batch has been rekeyed.
bit 7 = 1: the batch has been partial rekeyed.
bit 8 = 1: the batch has been edited.
bit 9 = 1: the batch has been saved by the supervisor
program 'save'.
bit 10 = 1: the batch has been dumped by the supervisor
program 'dump'.
bit 11 = 1: the batch has been transferred.
bit 12 = 0: the batch is valid.
bit 12 = 1: the batch is invalid, i.e. one or more
fields are invalid.
bit 13 = 1: the batch has been sorted.
bit 14 = 1: the batch must be valid (the parameter
'valid' has been used in the
'set'-command).

T_ C.2 R_e_c_o_r_d_s_

The are two types of records: data records containing the data
which has been keyed to the batch, and register records, made by
&_ NANNY as a copy of the register area, and is written in the
batch for every 10 data records.

T_ C.2.1 D_a_t_a_ _R_e_c_o_r_d_s_
A data record contains a record head, a number of fields and a
&_ record end.
\f

T_ Example:
________________________________________________________________

rec. field 1 field 2 field 3 field 4 field 5 rec.
&_ head end

The contents of the record head is:
byte 0: Subname: the name of the subformat used when keying
the record.
byte 1-2: The total record length.
byte 3-4: Record number in the batch.
byte 5: Record status: number of invalid fields in the
record.
byte 6: Rekeyed.
byte 7-8: Block number of corresponding record in old batch.
byte 9-10: Byte number of corresponding record in old batch.

The contents of the record end is:
byte 0: Subname the same as byte 0 in the record head.
byte 1: Record and mark: one byte with the value 28DD10UU.

The contents of a field is:
byte 0: Field status:
bit 7 = 1: invalid
bit 7 = 0: valid
bit 6 = 1: skip
bit 5 = 1: skip by statement
bit 5 = bit 6 = 0: not skip
bit 0 = 0: transfer field
bit 0 = 1: no transfer field

byte 1 n: data (max 80 characters in ASCII code with values
greater than 31DD10UU).
byte n + 1: field end mark, value 27DD10UU.

Fields with the status no transfer and fields with the lenght 0 are
placed as the last fields in the record.

T_ C.2.2 R_e_g_i_s_t_e_r_ _R_e_c_o_r_d_s_
A register record contains a record head, a register area and a
&_ record end.
\f

T_ Example:

________________________________________________________________

rec. register area reg.
head end
&_

The contents of the record head is:
byte 0: Subname, the ASCII character '?', value 63.
byte 1-2: Total record length.
byte 3-4: Record number in batch.
byte 5-6: Not used for register records.
byte 7-8: Block number of previous register record.
byte 9-10: Byte number of previous register record.
byte 11-12: Register top.
byte 13-14: Number of rekeyed records.
byte 15-16: Number of invalid records.

The contents of the register area is:
word 0: Pointer to length, and contents of register 01.
word 1: Pointer to length, and contents of register 02.

And so on to the last pointer to length, type, and contents of
last register.

After these pointers each register is described as follows:
byte 0: Length of register X
byte 1: Type of register X.
2 - n+1 pil byte 2 n+1: Contents of register X, n = the length of register
X.

The contents of the record end is:
byte 0: Subname, the same byte 0 in the record head, i.e.
'?'.
byte 1: Record end mark: one byte with the value 28DD10UU.

The register records may n_o_t_ be made by a supervisor program.
They are made as checkpoints of the current state of the batch
after keying a number of data records.

T_ C.3 B_a_t_c_h_ _E_n_d_ _M_a_r_k_

&_ The batch end mark is one byte with the value 29DD10UU. \f

The last bytes in a batch are then:

T_ field 27DD10UU subname 28DD10UU 29DD10UU
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ________________

field rec batch
&_ end end end

If the batch is empty the second block of the batch contains a
batch end mark in the first byte, i.e.

T_ batch head 29DD10UU

____________________

batch
end

&_ 1. block 2. block

F_ A_P_P_E_N_D_I_X_ _D_:_ _D_I_A_G_R_A_M_ _O_F_ _H_O_W_ _T_O_ _U_S_E_ _T_H_E_ _C_O_D_E_ _P_R_O_C_E_D_U_R_E_ _'_R_E_T_U_R_N_'_

KOPI AF SKEMA FRA MANUSKRIPT SÆTTES IND HER!

(side APP-D - se index - fotograferes ned til 16 cm i bredden)\f

F_ C: The new input must be syntax checked:
check = 0: yes
check = 1: no

O: A printout has been produced and must be copied to
hardcopy device via spool-file or to supervisor key
station display screen.
printout = 0: no
printout = 1: yes

P: The number in parameter 'result' must be output after
txt1 and txt2:
outputres = 0: no
outputres = 1: yes

R1: These three places must be filled in as 4, 5, or 6.

R2: The value of parameter 'textmode' gives the meaning of
the contents of parameter 'text':

textmode = 2: byte 1-80 of 'text' is a replace-
command, i.e. a cll of another supervisor program. The
command must be terminated by a null-character.

textmode = 3: byte 1-80 of 'text' is a text (termi-
nated by a null-character) to be output on the super-
visor key station display instead of standard text(s).

Byte 81-160 of 'text' is a replace-command (terminated
by a null-character). \f

F_ A_P_P_E_N_D_I_X_ _E_:_ _S_T_A_N_D_A_R_D_ _T_E_X_T_ _N_U_M_B_E_R_S_

In the Data Entry System the following texts with the
corresponding numbers are available to be used in the code
procedure 'return':

Textnumber Text Textnumber Text

1 stop 26 length
2 printer27next
3 break28punch
4syntax29transmit
5batch30erase
6state31dte
7error32tape ser
8magtape33number
9load err34file gen
10** supv35informa
11not name36real seq
12ok37block
13cf list38factor
14cf list;39load
15disc40table
16file41full
17ident42printout
18unknown43in use
19exist44format
20no room45job
21name46subprogr
22chars47disctabl
23copied48reader
24not49library
25record\f

F_ A_P_P_E_N_D_I_X_ _F_:_ _P_R_O_G_R_A_M_ _E_X_A_M_P_L_E_ _V_O_L_U_M_E_

This program example shows the communication between the program
and the operator by using the code procedures 'get command' and
'return'.

The program returns only with 'action' = continue, i.e. no check
of the new input shall be made, and therefore the code procedure
'get parameter' is not used. This is done because the operator
may key letters as well as digits after the text 'magtape
number =' has appeared on the display screen, so the new input
may not fullfil the syntax rules.

In the giveup-procedure for magtape, procedure 'mterror', is
zmode set to zero before the jump to the call of CLOSE, which
will release the driver process if an error on the magtape
occurs.
\f

HER FØLGER 5 SIDER MED UDSKRIFTER\f

F_ A_P_P_E_N_D_I_X_ _G_:_ _P_R_O_G_R_A_M_ _E_X_A_M_P_L_E_ _D_U_M_P_

This program example shows how to use all the standard code pro-
cedures except procedure allaccess (this is used in the same way
as procedure access), and it shows how to make a printout by
'outtext'.

The main program starts by getting the command line into 'com-
line'. Then it initializes all the error-counters to 4. When a
zone is opened the corresponding error-counter is set to zero
and when the zone is closed, it is set to 4 again.

The parameter in 'comline' is received by calling the code pro-
cedure 'get parameter ' (gtpm). First call gives the name of the
printout file and it is saved in 'lname', which is used in the
call of code procedure 'connect file' (connec).

Most of the texts written with 'outtext' are constant texts spe-
cified in the constant section of the program. They are termi-
nated by invisible null-characters and 'outtext' will therefore
stop on these null-characters. But if a constant string is moved
to another string, this null-character is lost and must be in-
serted as the last character. When writing the constant line
'headline' the name from the command line is inserted and to be
sure that eventual null-characters in the name will not stop
'outtext' the procedure 'outname' is called to change the null-
characters to spaces.

When all of the batches in a job must be dumped, the job is
opened and the batch names are found one by one by calling the
code procedure 'get next item' (getnext). If the zone has not
been destroyed between two calls, the parameter 'res' (correspon-
ding to 'status') must be 1 before the call (i.e. if the batch
does not exist as a disc-file or if the batch is used by another
key station).

The procedure 'dumpbatch' opens the batch and checks the batch
head. Then it reads the data in the batch by calling the code
procedure 'access' (acces), and when a new block is read, the
program must wait some timer-periods by calling the code proce-
dure 'delay'.

Before running to the Supervisor by calling the code procedure
'return' (retur) the program must release all drivers and area
processes, but only if the error-counter is smaller than 4. This\f

will avoid a program loop if an error has occured. Then the pa-
rameter 'rtext1' (corresponding to 'action') is packed and the
call of 'return' will continue = 0 will return to the Supervisor.
\f

HER FØLGER 15 SIDER MED UDSKRIFTER FRA LISC \f

F_ A_P_P_E_N_D_I_X_ _H_:_ _R_E_F_E_R_E_N_C_E_S_

1. MUSIL Programming Guide, RCSL 42-i 0344

2. Data Entry, Release 2, Users Guide, part 2
RCSL 43-GL 4796 \f

F_ APPENDIX I

I_N_D_E_X_

The references are pointing out page numbers.

access.............................................4, 12, 13, 14, G-1
action............................................. 9, 25, F-1, G-1
adding new supervisor programs (see PUT)
allac (see allaccess)
allaccess.......................................... 4, 14, 15, G-1
apostrophe......................................... 7
ASCII code......................................... 24

batch.............................................. 3
- creation (see create batch)..................
- end mark..................................... 3, 14, C-1, C-5
- head......................................... 3, 27, C-1
- name........................................27, C-1
- status....................................... 27, B-1, C-1, C-2
- structure.................................... C-1
- termination (see batch end mark).............
block..............................................15, 23
bufaddr............................................ 21

catalog entry...................................... 15
check..............................................9, 10, 25, D-1, D-2
close devices/processes............................25, 26, F-1
cmnd (see get command)
code procedure, standard...........................5
coding of supervisor programs......................4
combine............................................5, 7, 29, G-1
command line.......................................4
- line, empty................................6,8
connec (see connectfile)
connectfile........................................ 4, 6, 15, 24, G-1
cont............................................... 9, 10, 11, 25, 29,D-1
continue execution (see cont)
control characters................................. 25
core tables (see table(s))
create batch....................................... 27
create entry....................................... 15

(husk at rette sidenummereringen før genoptryk !!!!!!!!!!!!!!!!!)\f

data records....................................... 3, C-3
decimal numbers.................................... 7
delay.............................................. 21, G-1
delayed............................................ 21
delete in library (see library, delete)
- item (see library, delete)
device name........................................ 15, 23
differences, allaccess and access.................. 14
disc files......................................... 2
- table......................................... 2
- - library................................. 2, 18
DTLIB (see disc table library)
DUMPSTAT.......................................... 29

EDIT............................................... 28
empty command line................................. 6, 8
end medium......................................... 24, 25
error counter...................................... 26, G-1
error procedures................................... 26
extraword.......................................... 17, 18, 19, 20

FBLIB (see format library)
field.............................................. 13, 15, 28
- end mark..................................... 28, C-4
- status....................................... 13, 14, 28, C-4
- structure.................................... C-4
file..15, 23
- descriptor.................................... 15
find item.......................................... 4, 16, A-1
fitem (see find item)
format............................................. 2
- library..................................... 2, 18
- name........................................ 27, C-1

get command........................................ 4, 5, 21, 29, F-1
- new input...................................... 8, 10, D-1
getnex (see get next item)
get next item...................................... 4, 19, G-1
- parameter...................................... 4, 6, 16, 24, 29,
F-1, G-1
give up mask....................................... 15, 23
- - procedure (see error procedure)
gtpm (see get parameter)
\f

T_hard copy device................................... 4, 6, 10, 15, 22,
&_ 23, 24, 25, D-2
HCOPY.............................................. 23
HCPT............................................... 23
HCPT1.............................................. 23
HLPT............................................... 23
HLPT1.............................................. 23
HSP................................................ 23
HSP1............................................... 23
HTTY............................................... 23

insert in library (see library, insert)
- item (see library, insert)
install new programs (see PUT)
integer parameter................................. 6, 8
item............................................... 6, 7, 24

JBLIB (see job library)
job................................................ 2, 3, 19
- library........................................ 2, 3, 18, 27
- name........................................... 27, C-1
-, read........................................... 18
- structure...................................... B-1

kind............................................... 7, 8, 15, 23

last parameter (see termination)
length............................................. 16, 17, 18, 19
- , printout line.............................. 24
library............................................ 2, 17, 19
- , delete.................................... 4, 16
- , insert.................................... 4, 16
- , lookup.................................... 4
- , read...................................... 18, 19
- , search.................................... 4, 16
- , structure................................. A-1
LISTLOG............................................ 29
log file........................................... 29
lookup in library (see library, lookup)

mess3.............................................. 5, 21
message address.................................... 5
mode............................................... 15, 23
MUSIL compiler..................................... 4
- programming.................................. 4 \f

T_name............................................... 15, 16, 17, 18, 19,
&_ 20, A-1
name definition.................................... A-1
NANNY.............................................. 21
new input (see get new input)
- line........................................... 25
- supervisor program (see PUT)
no text............................................ 9, D-1
- transfer field.................................. 12, 14, 28
null character..................................... 6, 7, 11, 14, 18,
24, D-2
number............................................. 13, 14
- , decimal.................................... 7
- , octal...................................... 7, 9

octal number....................................... 7, 9
open printout (see connect file)
operator communication............................. 29
optype............................................. 16, 17
outmode............................................ 15, 16
output device for printout (see printout)
outputres.......................................... 9, 11, 25, D-1, D-2
outtext............................................ 24, 25, G-1

parameter.......................................... 4
- , integer................................. 6, 8
- , last (see termination)
- , termination............................. 6
- , terminator.............................. 6
- , text.................................... 6, 8
- , type.................................... 6
period............................................. 6, 8
printer............................................ 23
printout........................................... 6, 9, 10, 12, 15, 16,
22, 24, 25, D-1, D-2
- , conversion............................... 24
- file name................................. 7
- line, length.............................. 24
print, open (see connect file)
program example.................................... F-1, G-1
- termination................................ 25
PUT................................................ 4, 30

read batch end mark................................ 14 \f

read field......................................... 4, 12, 13
- - status.................................. 13
- in job (see job, read)
read in library (see library, read)
- record end....................................14
- - head...................................13
- - status.................................13
- subformat name................................13
receipt (see return)
receive command line (see get command)
record.............................................3, C-3
- , data (see data records)
- end mark....................................14, 28, C-3, C-4, C-5
- head........................................3, 13, 27, 28, C-3, C-4
- , register (see register records)
- status..................................... 3, 13, 14, 27, C-3
- structure................................... C-3
register area...................................... C-5
- records................................... 3, 12, 28, C-4
release devices/processes.......................... 25
reloctable binary object code...................... 4
remove process..................................... 8
replace current supervisor program................. 11, 12, D-1, D-2
result............................................. 9, 11, 17, 18, D-1,
D-2
return............................................. 4, 5, 8, 9, 21, 25,
29, E-1, F-1, G-2

search in library (see library, search)
- item (see library, search)
semaphore function................................. 9, 10
- ident.................................... 10
- , signal.................................. 10, D-1
- , wait.................................... 10, D-1
sep................................................ 7
signal semaphore (see semaphore, signal)
skip register records (see access)
slow down.......................................... 4, 21
space.............................................. 6, 8
special actions.................................... 9
SPLIB (see subprogram library)
spool file......................................... 23, 25, D-2
SPOOL NEWDEVICE.................................... 23
standard code procedures........................... 5
- text...................................... 9, 10 \f

standard text number............................... E-1
- - output............................... D-1
T_status............................................. 13, 14, 15, 19, 20,
&_ G-1
status word........................................ 3
subformat name..................................... 27, 28, C-1, C-3,
C-4, C-5
subname............................................ 13, 14, 15
subprogram......................................... 2
- library................................. 2, 18
syntax check....................................... 5, 10, 29
SUPERVISOR......................................... 21
supervisor display................................. 4, 6, 10
SUPERVISOR SLOW.................................... 21

table.............................................. 2
- library..................................... 2, 18
TBLIB (see table library)
termination........................................ 6, 8, 11, D-1
- , batch................................. 3
- , program............................... 26
terminator, parameter.............................. 6, 8
text............................................... 9, 10, 11, D-1, D-2
textmode........................................... 9, 11, 26, D-1, D-2
text parameter..................................... 6, 8
timer period....................................... 21
transfer field..................................... 13
TTY................................................ 23
txt1............................................... 9, D-1, D-2
- 2............................................... 9, 10, D-1, D-2
type, parameter.................................... 6

value.............................................. 6, 7, 24

wait semaphore (see semaphore, wait)
- , timer periods................................ 21
work file.......................................... 15, 24, 25

z.................................................. 13, 15, 16, 17, 19 \f

T_A_B_L_E_ _O_F_ _C_O_N_T_E_N_T_S_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _P_A_G_E_

1. INTRODUCTION ........................................... 1

2. INSTALLATION ........................................... 2
\f

ii
\f

1_._ _ _ _ _ _ _ _ _I_N_T_R_O_D_U_C_T_I_O_N_ 1.

The present issue of MailMerge 3.0 has been adapted for use on
your RC700 Microcomputer System.

The MailMerge option for WordStar 3.0 contains the following:

- This manual "MailMerge for the RC700 Microcomputer System, In-
stallation Guide".

- MicroPro's dokumentation of MailMerge:
- Sections No 9, 10 and 11 of the "WordStar, Reference Manual".

- A diskette containing the MailMerge option to WordStar.

Do not write on the original distribution diskette as it is your
master copy and serves as last back-up in case of grave errors.

F_ 2_._ _ _ _ _ _ _ _ _I_N_S_T_A_L_L_A_T_I_O_N_ 2.

Start by making a copy of the original distribution diskette.

Transfer the files from the MailMerge distribution diskette to a
diskette containing your WordStar 3.0 system. No further instal-
lation or modification is necessary.

T_A_B_L_E_ _O_F_ _C_O_N_T_E_N_T_S_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _P_A_G_E_

1. INTRODUCTION .......................................... 1

2. CONTROLS .............................................. 2

3. OPERATING PROCEDURES .................................. 5

4. GENERAL KEYBOARD DESCRIPTION .......................... 7
4.1 Character Keys ................................... 7
4.2 Program Controlled Keys .......................... 7
4.3 Local Control Keys ............................... 8

5. RC822 KEYBOARD ........................................ 9
5.1 Program Controlled Keys .......................... 9
5.2 Local Control Keys ............................... 9

6. RC828 KEYBOARD ........................................ 12
6.1 Program Controlled Keys .......................... 12
6.2 Local Control Keys ............................... 12
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ii
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1_._ _ _ _ _ _ _ _ _I_N_T_R_O_D_U_C_T_I_O_N_ 1.

Figure 1: Visual display unit and keyboard.

The visual display unit is referred to as VDU.
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F_ 2_._ _ _ _ _ _ _ _ _C_O_N_T_R_O_L_S_ 2.

Figure 2: Controls.

POWER ON/OFF - a mains power switch is located at
the left side of the VDU.

1) Switch selectors - when pressed inwards the features
are selected as described below.
The switches are self-locking, to
deselect the features, press once
more.
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TAPE - for maintenance purpose only.

Causes all recieved characters to
be displayed including control
characters. The tape key on some
keyboards provide the same
function.

FULL DUP - in-position : full duplex;
out-position: half duplex.

DATA RATE - the switch provides selection
between two preset communications
speeds.

Usually to be left untuched by the
operator as the setting is part of
the overall system tuning (deter-
mined by software).

EIA - for maintenance purpose only.

In-position selects EIA (or V.24)
signals.

2) Indicators - when an indicator is lit, the
following is ment:

CD (Carrier Detect): a feature of the communications
equipment, showing that the
connection is established.

RS (Ready to Send): like the CD indicator, but showing
readiness for transmitting from the
keyboard.

Both the CD and the RS indicator
should be lit, when the terminal is
on-line.
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3) Display Screen Controls - adjustment of brightness and
contrast are provided by these two
control knobs.
- knob closest to the
front side: controls the brightness of the
displayed characters. (Sometimes
labelled BRIGHTNESS.)
- knob closest to the
rear side: controls the contrast in displaying
characters. (Sometimes labelled
CONTRAST.)

4) Loudspeaker Adjustment - the knob is used to adjust the
loudness of the acoustic signal
from the loudspeaker.

The acoustic signal is heard when
receiving a BELL code. \f

F_ 3_._ _ _ _ _ _ _ _ _O_P_E_R_A_T_I_N_G_ _P_R_O_C_E_D_U_R_E_S_ 3.

Turn on the mains power with the POWER ON/OFF switch. When
applied as a console, the power can be controlled via the
system if the POWER ON/OFF switch is left in the ON position
after first time of operation.

The selector switches should normally be positioned as follows:

TAPE : out-position
FULL DUP : in-position, or according to specification
DATA RATE : according to specification
EIA : in-position

At the time the communications facilities are available for use,
the CD and ultimately the RS indicators will light. As long as
the terminal is on-line, these indicators should light.

How to access the system and further information regarding
terminal operations will be found in the publications concerned
with software systems and applications.

In a first-time operating situation and whenever convenient at
start of operations the following check procedures are performed:

1. The display is checked by switching the FULL DUP selector to
its out-position, then select any of the character keys and
hold that key pressed down along with pressing down the REPT
key.

The screen should now be filled up with that character. (Note:
After checking, restore FULL DUP selector to correct posi-
tion.) Applicable to RC822 only.
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Adjustments of brightness and contrast are provided by the
control knobs located at the right side of the terminal.
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F_ 4_._ _ _ _ _ _ _ _ _G_E_N_E_R_A_L_ _K_E_Y_B_O_A_R_D_ _D_E_S_C_R_I_P_T_I_O_N_ 4.

The keyboards differ with respect to the RC product number. The
different types of keyboards used with the VDU are described in
the chapters following.

Commen to all keyboards is the presence of three types of keys:

- the character keys,
- the program controlled keys, and
- the local control keys.

4_._3_ _ _ _ _ _ _ _L_o_c_a_l_ _C_o_n_t_r_o_l_ _K_e_y_s_ 4.3

F_ 5_._ _ _ _ _ _ _ _ _R_C_8_2_2_ _K_E_Y_B_O_A_R_D_ 5.

5_._1_ _ _ _ _ _ _ _P_r_o_g_r_a_m_ _C_o_n_t_r_o_l_l_e_d_ _K_e_y_s_
5.1
ESCAPE
LINE FEED
RETURN
RUB OUT- function determined by the software
BREAK system.
BACK SPACE

CTRL - used to generate control codes
which are not directly provided on
the keyboard by assigned keys.

5_._2_ _ _ _ _ _ _ _L_o_c_a_l_ _C_o_n_t_r_o_l_ _K_e_y_s_ 5.2

SHIFT - this key, in conjunction with
alphabetic or numeric keys, will
select the upper legend or the
upper-case character form.

ALPHA LOCK - when locked in the down position,
the key will select the upper-case
character legends with no effect on
the numeric keys. The key is self-
locking, to release press once
more.
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