<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Check out the directory: historic1/brl.pdp11/usr/src/macro11</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">On Kirk's latest CD. It seems to be the DEC tools made to run on V6. There is a modified version of the DEC Linker.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">The only issue, of course, is that these are in PDP-11 assembler, so you'll need to run them on simh or the like. I'm not sure the relationship between these are the ones we ran in the old days; but I do remember that we had a linker that knew about the DEC style PSECTS. I'll keep looking when I get back to see what I have in my archives from those days. But I bet this version is close too if not the same as what I we had,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Clem</div></div></div><div hspace="streak-pt-mark" style="max-height:1px"><img alt="" style="width:0px;max-height:0px;overflow:hidden" src="https://mailfoogae.appspot.com/t?sender=aY2xlbWNAY2NjLmNvbQ%3D%3D&type=zerocontent&guid=f3a7ce39-3a5b-4280-a254-5a24d24f13f7"><font color="#ffffff" size="1">ᐧ</font></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Feb 8, 2019 at 3:25 AM Stephen Casner <<a href="mailto:casner@acm.org">casner@acm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Noel,<br>
<br>
Thanks for your suggestions regarding UNIX-based development tools as<br>
an alternative to the TENEX-based ones we used in the 1970's. I do<br>
have a MACRO-11 running on my MacBook, but it does not implement the<br>
extensions to the macro capabilities that we used widely in the EPOS<br>
sources and it does not produce relocatable output. I also can use<br>
the UNIX V6 tools (running on a simh PDP11) for assembly or C code and<br>
then convert to LDA binary format with a program named atolda, similar<br>
to what your group did. That was how the folks at Lincoln Lab<br>
developed EPOS-based gateway software for the Wideband Satellite<br>
Network. I could also make an a.out loader for EPOS as an<br>
alternative like your group later did.<br>
<br>
The most sorely missed piece is the Link11 linker. It allowed<br>
configuration of PSECTs into multiple address spaces. It also<br>
produced symbol tables in an exended format for out debugger. In<br>
theory I could reimplement such a linker from scratch, and perhaps in<br>
less time than it would take to search for the original tools, but I<br>
don't have a spec for it.<br>
<br>
-- Steve<br>
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