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From: "Maciej J. Macowicz" <mm@mars.ipl.fr>
Newsgroups: comp.lang.beta
Subject: Re: Experience on embedded systems
Date: 14 Mar 1995 09:38:06 GMT
Organization: C.I.S.M.  Universite de Lyon 1 / INSA de Lyon
Lines: 68
Message-ID: <3k3o5v$j6r@cismsun.univ-lyon1.fr>
References: <IGFPleyg7$s9065yn@login.dknet.dk>
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> Does anybody have experience using BETA for programming embedded
> systems. I'm always suspicious about OO languages and embedded
> systems because:
> 
Beta was used (by NOKIA ???) in embedded systems ; 
this experience is described in the part X of the book :

Object-oriented environments: The Mjolner approach

Editors: 

 Jorgen Lindskov Knudsen (Aarhus University, Denmark) 
 Mats Lofgren (Telia Research AB, Sweden) 
 Ole Lehrmann Madsen (Aarhus University, Denmark) 
 Boris Magnusson (Lund University, Sweden) 



PRENTICE HALL 
The Object-Oriented Series 
ISBN 0-13-009291-6 (hbk) 
1994 


Contents of the part X :

Part X Mjolner in use 

   High level specification of a telecom application with OSDL 
   Using OSDL for customization of telecom software 
   OSDL used for specification of a train control system 
   BETA in an embedded system 
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   Implementing ISDN supplementary services 
   ApplBuilder - an application generator 
   Teaching object-oriented methodology and languages

> 1. They tend to use a lot of data space, with out you
>    even finding out.
> 
> 2. They generate a lot of code

The code generated by Beta compiler was not so big compared to
equivalent C code (factor 1.5-2, I think). The details are given
in the book cited below.

> 
> 3. Can it generate the datastructures I need for manipulating bits.
>    It's usually hard to fiddle with bits without writing a lot of
>    code. Of course it can be encapsulated, but how efficient is
>    the compiler to optimize this.

Beta allows the use of 'external' (C) routines ...

> 
> I was taught Beta five years ago, at Aalborg University, by one
> of its inventors. So I know what BETA is, but at that time BETA 
> was far from mature. 
> 
>   Kjeld Flarup Christensen - DIAX Telecommunications

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Maciej J. Macowicz                                    LISA, ICPI-CPE- Lyon
E-mail: mm@mars.ipl.fr                    Home Page: http://www.ipl.fr/~mm
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