[this was meant to go over the list, Warren quoted it, but it destroyed the formatting somewhat] On 27/10/18, Warren Toomey wrote: Unfortunately that does not include the old troff written in PDP-11 assembly. The v6 tape and file system contain traces of it in the directory /usr/source/s7, so we at least know (some of) the file names: │002655f0 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 | | │00265600 6d 01 72 6f 66 66 33 2e-73 00 00 00 00 00 00 00 |m?roff3.s | │00265610 6c 01 72 6f 66 66 34 2e-73 00 00 00 00 00 00 00 |l?roff4.s | │00265620 6b 01 72 6f 66 66 35 2e-73 00 00 00 00 00 00 00 |k?roff5.s | │00265630 6a 01 72 6f 66 66 37 2e-73 00 00 00 00 00 00 00 |j?roff7.s | │00265640 69 01 72 6f 66 66 38 2e-73 00 00 00 00 00 00 00 |i?roff8.s | │00265650 00 00 73 75 66 72 63 00-00 00 00 00 00 00 00 00 | sufrc | │00265660 67 01 73 75 66 74 61 62-2e 73 00 00 00 00 00 00 |g?suftab.s | │00265670 00 00 74 63 61 74 73 69-6d 2e 73 00 00 00 00 00 | tcatsim.s | │00265680 00 00 74 72 63 00 00 00-00 00 00 00 00 00 00 00 | trc | │00265690 00 00 74 72 6f 66 66 31-2e 73 00 00 00 00 00 00 | troff1.s | │002656a0 00 00 74 72 6f 66 66 32-2e 73 00 00 00 00 00 00 | troff2.s | │002656b0 00 00 74 72 6f 66 66 33-2e 73 00 00 00 00 00 00 | troff3.s | │002656c0 00 00 74 72 6f 66 66 34-2e 73 00 00 00 00 00 00 | troff4.s | │002656d0 00 00 74 72 6f 66 66 35-2e 73 00 00 00 00 00 00 | troff5.s | │002656e0 00 00 74 72 6f 66 66 36-2e 73 00 00 00 00 00 00 | troff6.s | │002656f0 00 00 74 72 6f 66 66 36-61 00 00 00 00 00 00 00 | troff6a | │00265700 00 00 74 72 6f 66 66 38-2e 73 00 00 00 00 00 00 | troff8.s | │00265710 00 00 78 78 78 78 78 00-00 00 00 00 00 00 00 00 | xxxxx | │00265720 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 | | Now it could be that v7 troff is perfectly capable of generating the manual just like older troff would have, I just haven't dived more deeply into it all yet. I was more concerned about reconstructing the actual content rather than the exact looks for now, but it's still something i want to get right eventually. This didn't go through the list but I'll reply here: On 26/10/18, Ken Thompson wrote: Thanks, You've always been an inspiration to me! aap