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File No. 1401 -25
Form C24-1455-2
Systems Reference Library
Fortran Specifications and Operating Procedures
IBM 1401
PROGRAM NUMBER 1401-Fo-050, VERSION 3
This reference publication contains the language spec-
ifications necessary to code a 1401 Fortran source pro-
gram and the procedures for assembling and running
the object program. In addition to describing the 1401
Fortran language, the specifications section also con-
tains descriptions of:
1. the control card
2. the phases of the compiler
3. the arithmetic and input!output routines generated
by the compiler
4. the 1401 Fortran facility for linking programs or
segments for continuous processing and
5. the input/output routine option provided in 1401
Fortran.
In addition to the procedures for assembling and
- running the object program, the operating procedures
section also includes explanations of:
1. compiler output
2. compiler diagnostics
3. object-program storage allocation and
4. object-program halts.
The reader should be familiar with the Fortran
General Information Alanual, Form F2B-B074, and the
IBM 1401 configurations required for the assembly and
the execution of the object program. Additional pub-
lications concerning the ffiM 1401 system can be found
in the IBM 1401-1460 Bibliography, Form A24-1495.
This is a reprint of an earlier edition, and incorporates the following
Technical Newsletter:
Form No.
N21-0046-0 15, 20, 22, 28, 29, 4/27/65
33, 40, and 42
Copies of this and other IBM publications can be obtained through IBM Branch Offices.
A form is included at the back of this manual for readers' comments. If this form has
been removed, address comments to: IBM Corporation, Product Publications, Dept. 245,
Rochester, Minn. 55901.