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File No. 1401/1460-22
Form C24-3319-0
Systems Reference Library
Autocoder (on Tape) Language
Specifications and Operating Procedures
IBM 1401 and 1460
Program 1401-AU-037
This reference publication contains the language specifications and
operating procedures for the Autocoder (on Tape) programming
system. The IBM 1401 Autocoder processor program produces
machine-language object programs for IBM 1401 and IBM 1460 from
source programs written in the symbolic language of Autocoder.
The language specifications are divided into two sections. The first
section contains the specifications of the symbolic language
(mnemonics, labels, address types, and control operations) and the
rules for writing the source program. The second section describes
macro operations and macro instructions.
The operating instructions supplement the language specifications
section of this publication. Described are the procedures to be
performed by the operator when assembling an Autocoder program
on an IBM 1401 or 1460 tape system. The phases of the Autocoder
processor are explained and system halts and restarts are given.
For a list of associated publications and abstracts, see the IBM
1401 and 1460 Bibliography, Form A24-1495.
I
Maior Revision, November 1964
This publication, C24-3319-0, is a major revision of, and ob-
soletes, C24-1434-0, C24-3104-0, and Technical Newsletters
N24-0212 and N24-0233. The main change is the consolidation
of C24-1434-0 and C24-3104-0. Other changes include modifi-
cations to the address constants section and to the label descrip-
tion section of the Specifications.
Copies of this and other IBM publications can be obtained through IBM Branch Offices.
Address comments concerning the content of this publication to IBM Product Publications, Endicott, New York 13764.