This document is to serve as a programmer’s manual for the Algol compiler constructed as a cooperative project by Control Data Corporation and the Mathematics Division of Oak Ridge National Laboratory. The compiler is designed for the Control Data 1604 and 1604-A computers. The document is preliminary in that the compiler is not thoroughly tested and may undergo further development.

The reader is assumed to be familiar with Algol 60. The defining descriptions are the two reports on Algol 60 available in the following references:

1. P. Naur et al, “Report on the Algorithmic Language Algol 60,” Comm. Assoc. Comp. Mach., 3 (1960), No. 5, 299-314.

2. P. Naur et al, “Revised Report on the Algorithmic Language Algol 60,” Comm. Assoc. Comp. Mach., 6 (1963), No. 1, 1-17.

The second report clears up certain ambiguities that appeared in the first report. The reports are not easy reading for the novice. The following expositions are more readable:

1. Baumann, Bauer, Feliciano and Samelson, Introduction to Algol, Prentice-Hall, Inc. (to be published in late 1963).

2. Bottenbruch, H., “Structure and Use of Algol 60,” Jour. Assoc. Comp. Mach., 9 (1962), No. 2, 161-221, and ORNL-3148.

The Baumann publication also contains the revised Algol 60 report.

Throughout this document various examples of statements and declarations appear without the semicolon which is always required for separating them. This is to avoid the implication that the semicolon is part of the statement or the declaration. In sentences, a comma or period may appear where a semicolon or other delimiter would be indicated in the context of a program.

Word delimiters rendered in bold-face type in the Algol report are herein indicated by underlining.