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From: "Petter Fryklund" <qsbpefr@esavionics.se>
Newsgroups: comp.lang.ada
Subject: Re: Ada And Alternate System Architectures
Date: Fri, 24 Aug 2001 08:55:53 +0200
Organization: ericsson
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Xref: archiver1.google.com comp.lang.ada:12372
Date: 2001-08-24T08:55:53+02:00
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I worked for UNIVAC ... SPERRY ... UNISYS 1976 - 1991. I'd really love to
program a 2200 using Ada. Is it still in use?


Randy Brukardt wrote in message <9m3h4n$onh$1@news.online-isp.com>...
>>A very naive question...does the Ada standard adequately address
>>non-8-bit byte computers?  The Fortran language standard committee
>>consistently avoids defining anything that relates to a specific
>>computer architecture implementation (because what if 6-bit character
>>systems one day become common again...).  At a very high level, how are
>>machine specifics addressed?
>
>Yes, Ada does support machines that don't have 8 bit bytes. There have
>existed Ada compilers for machines that don't have 8-bit bytes. For
>instance, we made a version of Janus/Ada 95 for the Unisys U2200, which
>has 36-bit words, and to a lesser extent, 6 and 9 bit bytes.
>
>Types like Character and Stream_Element can have any size appropriate to
>the hardware. The main problem is importing and exporting data created
>in such formats.
>
>            Randy Brukardt.
>
>
>