<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">I’m further looking into BCPL / B / C family compilers on 16-bit mini-computers prior to 1979.<div class=""><br class=""></div><div class="">Lot’s of interesting stuff. BCPL was extended with structures at least twice and plenty struggle with (un)scaled pointers. It seems that the Nova was a much easier target than the PDP-11, with a simpler code generator sufficing to generate quality code. I’ll report more fully when I’m further along with my review.</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On May 8, 2024, at 5:51 PM, Clem Cole <<a href="mailto:clemc@ccc.com" class="">clemc@ccc.com</a>> wrote:</div><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">IIRC, Mike Malcom and the team built a true B compiler so they could develop Thoth. As the 11/40 was one of the original Thoth target systems, I would have expected that to exist, but I have never used it.</div></div></div></blockquote><br class=""></div><div>Yes, they did. I’m working through the various papers on Thoth and the Eh / Zed compilers (essentially B with tweaks). I’ve requested pdf’s of two theses that are only on micro-fiche from the Uni of Waterloo library, hopefully this is possible. The original target machines were Honeywell 6060, DG Nova, Microdata 1600/30 and TI-990. The latter is close enough to a PDP-11. This compiler is from 1976.</div><div><br class=""></div><div>I’ve browsed around for surviving Thoth source code, but it would seem to be lost. Does anyone know of surviving Thoth bits?</div><br class=""><div class=""><br class=""></div></div></body></html>