On the machine conversion of B5500 Algol to CDC 6000 Algol

Abstract

This paper describes the machine conversion of Algol for the Burroughs B5500 to Algol for the CDC 6000 series. CDC Algol is essentially Algol 60 and is a subset of Burroughs Algol which is the primary language for the B5500. Burroughs Algol implements extensive input-output and file manipulation operations. Burroughs Algol allows bit manipulation; the B5500 and the CDC 6000 series have different internal representations of both arithmetic and boolean quantities An overview of the conversion program is given. A discussion of conversion of the machine dependent constructs and of radically differing syntactic and semantic constructs is presented.