[Info-vax] Obscure Ada compiler vendors?

Johnny Billquist bqt at softjar.se
Wed Apr 3 09:19:13 EDT 2013


On 2013-04-03 14:02, John Wallace wrote:
> On Apr 3, 12:15 pm, Johnny Billquist <b... at softjar.se> wrote:
>> On 2013-04-02 13:40, Simon Clubley wrote:
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>>> On 2013-03-30, Johnny Billquist <b... at softjar.se> wrote:
>>>> On 2013-03-29 01:31, Simon Clubley wrote:
>>
>>>>> Yes, GNAT is a GCC front end.
>>
>>>>> BTW, which bare metal capable Ada compiler did you use ?
>>
>>>> If I remember right, it was Green Hill, but it's more than 10 years ago
>>>> now, so I might be confused.
>>>> This was for military applications, so the hardware was special, the Ada
>>>> runtime system was adapted to the hardware, and I was writing code in
>>>> Ada which talked directly to all kind of hardware. It was actually
>>>> pretty ok. Describing bitfields that were device registers worked pretty ok.
>>
>>> Thanks; I just wanted to make sure there wasn't a currently available
>>> Ada compiler I was unaware of.
>>
>> Oh, it was from a major software house. Thinking about it, I might be
>> wrong about Green Hill, though. I used that one, but it was on another
>> project, where we ran Ada under VxWorks.
>> Still trying to recall what Ada we used for the bare metal... But right
>> now my mind is blank.
>>
>>          Johnny
>>
>> --
>> Johnny Billquist                  || "I'm on a bus
>>                                     ||  on a psychedelic trip
>> email: b... at softjar.se             ||  Reading murder books
>> pdp is alive!                     ||  tryin' to stay hip" - B. Idol
>
> XD Ada? Front end and debugger and various other bits by DEC, back
> ends and runtime for 68k and MIL1750 originally by SD Scicon (who
> became EDS Scicon, who are now part of HP). Still around, still
> supported on VMS, therefore relevant here :)
>
> There were/are others, but they're even more obscure. E.g. The name
> Atego probably won't mean much, but that's where both Alsys and
> Telesoft ended up. Verdix ended up as part of Rational which ended up
> as part of IBM.
>
> A marginally more comprehensive (but rather dated) list can be found
> on the ACM's Ada special interest group website, at:
> http://www.sigada.org/vendors.html
> Beware bitrot: e.g. the Compaq entry links to digital.com ...
>
> Meanwhile, SIGADA has even decided to change the name of its annual
> conference, to High Integrity Language Technology. Rightly or wrongly,
> that's how untrendy Ada is.

Thanks for jogging my memory. I think it was Rational for the bare metal 
case. The actual CPU was a PowerPC thingy.

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol



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