Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!oliveb!mintaka!daemon From: sra@lcs.mit.edu (Rob Austein) Newsgroups: comp.arch Subject: Re: DECSYSTEM 20 Message-ID: Date: 31 Jul 89 18:27:22 GMT References: <3256@wpi.wpi.edu> Sender: daemon@mintaka.lcs.mit.edu (Lucifer Maleficius) Organization: ITS Preservation Society Lines: 11 In-reply-to: egdorf@zaphod.lanl.gov's message of 22 Jul 89 01:59:24 GMT MIT TECO, the implementation language for the original EMACS, executed the code to move the buffer gap in the ACs, for speed. At one point we ran some fairly hairy custom TECO programs to sort and merge the MIT and NIC host tables, and it was not uncommon to a TECO that was executing that code madly spinning away in the ACs. Particularly when the code was running on a KS-10, where the ACs weren't any faster than the rest of memory. TECO's sorting command ("^P") may have also run in the ACs. --Rob Austein, MIT