Re: [TUHS] 8bc -- a B compiler for the PDP-8

[Henry Bent <henry.r.bent@gmail.com>]

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On Mon, 23 Sep 2019 at 13:27, Clem Cole <clemc@ccc.com> wrote:

> below...
>
> On Fri, Sep 20, 2019 at 7:08 PM Robert Clausecker <fuz@fuz.su> wrote:
>
>>   It's a bit rough around
>> the edges and the runtime code needs some work (division and
>> remainder are missing), but it does compile B code correctly,
>> generating acceptable code (for my taste, though the function call
>> sequence could be better).
>>
> A suggestion,   Load TSS/8 on to your simh system with its Algol compiler
> and look at how it generated code.  I would suspect you can use Algol's
> calling conventions and probably some of its runtime.   Google is your
> friend.  I had it running a while back, but do not have it active at the
> moment - the key is all the pieces should be findable in the wild,.
>
>
>>
>> I hope some of you enjoy this compiler for an important historical
>> language for an important historical computer (makes me wonder why
>> the two weren't married before).
>>
> Might have been, although when Ken created B for the PDP-7, BCPL was his
> model and there were already implementations of BCPL around for a number of
> processors.  I would not be surprised if there was a BCPL/8.  I would check
> in the DECUS library, much of which I think can be found online these days
> ??bit savers??.
>

I checked here: http://so-much-stuff.com/pdp8/software/decus.php but did
not immediately see anything BCPL related.  8-330 is TSS/8 ALGOL.

-Henry

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