Algol-68

Contents Programs

Algol-68 to C: ctrans, ELLA

From: Andy Pryor
Newsgroups: comp.lang.misc
Subject: Re: Declarations in Algol 68
Date: 21 Feb 1996 17:14:57 +0000
Organization: Praxis plc, Bath, UK
Lines: 42
))))) On Mon, 19 Feb 1996 19:17:56 GMT, Trevor Jenkins said:
Trevor) Please somebody tell me and Pat Knight that a free and
Trevor) freely-available compiler exists somewhere out there.

An ALGOL 68 to C converter ("ctrans") is freely available as part of the public domain ELLA (hardware description language) package from DRA Malvern in:

ftp.dra.hmg.gb/pub/ella [2/1996] [4/1999]

The program is itself written in ALGOL 68, so the package contains a SunOS Sparc binary (or a set of generated C files) to get you bootstrapped.

Ctrans is a portable ALGOL 68 compilation system that allows Algol 68 programs to be compiled and run on most systems for which an ANSI C compiler is available.

The system consists of these components
Algol 68 to C translator (a68toc)
C header files providing type definitions and support macros required by the generated C code
run-time support library including garbage-collected heap allocator
an ALGOL 68 prelude library that provides interfaces to XPG3-compatible operating system facilities (note that these interfaces are not the same as the ALGOL 68 standard prelude defined in the Revised Report).

Ctrans can be easily ported to most systems that possess an ANSI C compiler (e.g. gcc), and an XPG3 standard C library.
The heap management system works best on virtual memory systems, but can be made to work in other environments.
The translator is based on the portable ALGOL 68 RS front-end implemented by RSRE (now DRA) and therefore accepts all standard RS extensions to the language (with a few exceptions). 

===============================================================================
Andy Pryor
Praxis Critical Systems                        20 Manvers St, BATH, BA1 1PX, UK
aap praxis co uk           Tel:+44 1225 739257/444700       Fax:+44 1225 739281
===============================================================================

2003

A68toC at [www.algol68.org][12/2003] ~ [Greg Nunan][12/2003].

Algol68G, an Algol 68 subset interpreter, [www.xs4all.nl/~jmvdveer/][12/2003].

Algol 68S A68S

Date: Thu, 13 Jun 1996 17:00:08 +0100
From: Charles Lindsey
Subject: ALGOL 68S

ALGOL 68S System

I announce the availability of a compilation system for ALGOL 68S on the following platforms.

They may all be downloaded from:

ftp.cs.man.ac.uk/pub/chl/A68S [6/1996]

The system is written using the Amsterdam Compiler Kit (ACK), so some parts of it are copyright by the Vrije Universiteit, Amsterdam, and the remainder by myself. Please see the Copyright Notice in the share directory.

The language implemented is most of ALGOL 68 (including virtually the whole of the official sublanguage). The implementation is pedantic rather than fast. See the documentation for full information.

The Sun3 and Atari versions are essentially frozen (but believed to be reliable). I would expect to be able to fix problems in the others as they arise. The system could in principle be run on any UNIX system for which the ACK provides a backend and, in particular, I would be willing to go for a Linux version if someone can offer me facilities to test it.

If you do download and install the system, please let me know. It would be nice to know who is using it and, in addition, you will get on my mailing list for any updates in the future. 

Charles H. Lindsey ------------------------------------------------------------
           At Home, doing my own thing.          Internet: chl clw cs man ac uk
Voice/Fax: +44 161 437 4506                      Janet:    chl uk ac man cs clw
Snail: 5 Clerewood Ave., CHEADLE, SK8 3JU, U.K.  UUCP:     mucs!clerew!chl
1/2000, private copy of: http://www.occl-cam.demon.co.uk/pricing.html

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From brian wichmann totalise co uk Mon Dec 15 21:56:03 2003
     ['.'s and '@']
Subject: The Algol Bulletin archive on the Internet

Thanks to Jeremy Gibbons, secretary of WG2.1, the Algol Bulletin digital archive is now on the Internet at: www.softeng.ox.ac.uk/Jeremy.Gibbons/wg21/algol-bulletin/INDEX.HTM
This location may change and I will let you know the final site for this material (when agreed).
...

Brian Wichmann.

Copies: [Algol-bulletin]['24], was [portal.acm.org/ browse_dl.cfm ?coll=ACM&dl=ACM &idx=J33 &linked=1 &part=affil][11/2005].

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