Table of Contents
Advertisement
Program Switch Settings
to be in error does not necessarily mean that the source program cannot be com-
piled correctly or that the object program cannot be successfully run. Conversely,
a source program which has been processed by the Pre-Compiler and found free
of error might have certain undetectable mistakes in logic, or be too large for
the particular 1620 system in use.
The 1620 FORTRAN Pre-Compiler cannot determine the intent of your pro-
gram. Even though no errors are present in individual source statements,
YOll
should examine the final program summary to determine if any logical errors in
the flow of the source program still remain to be corrected.
The possible settings for the program switches are shown below
Print On
Punch Edited
Input
Typewriter
Source Program
SW 1
S\V :2
SW 4
Cards/Tape
Yes
Yes
On
On
On
Cards/Tape
Yes
No
On
Off
On
Cards/Tape
No
Yes
On
On
Off
Cards/Tape
No
No
On
Off
Off
Typewriter
No
Yes
Off
On
On/Off
Typewriter
No
No
Off
Off
On/Off
Switch 3 has the following function:
On - Error correction routines are bypassed.
Off - Error correction routines are not bypassed.
NOTE: Switch 4 is normally off during typewriter input. When you make an error
in typing either an original or a corrected source statement, turn this switch
on, press the release and start keys, and return the switch to its normal OFF
position. You must then retype the entire statement.
Processing
with the Pre-Compiler Program
Loading the Program-
Card Deck
Loading the Program-
Tape File
The sequence of operations required to load the program card deck is as follows:
1. Clear core storage to zeros.
A
suggested method for clearing to zero is to:
a. Press the reset key.
b. Press the insert key.
c. Type the instruction 16 00010 00000.
d. Press the release key.
e. Press the start key.
f. When all storage position have been cleared, press the instant stop key.
2. Set the console program switches for the input/output option you want.
3. Set the overflow check switch to PROGRAM and all other check switches to
STOP.
4. Press the reset key.
5. Place the deck in the read hopper and press the load key.
The cards comprising the FORTRAN Pre-Compiler deck are punched with
sequence numbers in columns 76 through 80 and the deck must be loaded in
sequence.
The sequence of operations required to load the program tape is as follows:
1. Clear core storage to zeros, set the console program, and check switches
as in steps 1, 2, and 3, just given.
The FORTRAN Pre-Compiler Program
77
Advertisement
Table of Contents
