> On Nov 9, 2017, at 3:10 AM, Johnny Billquist <b...@softjar.se> wrote:
>
> On 2017-11-09 07:51, Lars Brinkhoff wrote:
>> Johnny Billquist <b...@softjar.se> writes:
>>> I bet that would be written in some ANSI C, for which you won't find a
>>> C compiler for V7...
>> GCC has a PDP-11 backend, so maybe you can cross compile it.
>
> That would depend on if calling conventions, register conventions, a.out
> format and so on are compatible between V7 and whatever format gcc uses. Not
> to mention you also need all the V7 libraries where you do the cross compile.
> I suspect this might be a bit much to deal with for Will...
Some years ago the 2BSD flavor of the pdp11 back end in GCC was deleted,
leaving only the "DEC" style (which isn't actually quite right for DEC
assemblers). Some day I hope to restore it, but other things will likely come
first. It may not be all that hard, a matter of retrieving it from the old
releases and doing some modest tweaks to bring it back in. I'd encourage
others to give it a try.
paul
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