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ACADEMIC OPERATING SYSTEM 4.3
ACADEMIC OPERATING SYSTEM
VOLUME III
IBM Academic Operating System 4.3
Volume III
Assembler Reference Manual IBM/4.3-PSD:I-l
Assembler Reference Manual for IBMj4.3
ABSTRACT
This article is an updated version of an article entitled Berkeley V A XI UNIX AJ-
Jembler Reference Manual, written in November 1979 by John F. Reiser and
Robert R. Henry and revised in February 1983. The original article, which is in
Volume 1 of UNIX Programmer's Supplementary Document.,;, has been rewrit-
ten and includes additions and changes for IBM/4.3 and corrections where ap-
propriate.
15 Dec 1986
IBM/4.3-PSD: 1-2 Assembler Reference Manual
1. INTRODUCTION
This document describes the usage and input syntax of the IBM/4.3 assembler, as, for
the IBM RT PC and IBM 6152 Academic System. A.r assembles the code produced
by the C compiler. This article is intended for those writing a compiler or maintain-
ing the assembler; it is not a user's guide for writing assembler code.
Examples of syntax in this article use the following conventions: