On Sun, 2025-02-16 at 20:44 +0000, Wayne S wrote: > Is it posted anywhere?
It's at http://vandyke.mynetgear.com/1401/progs/Fortran/ but not really organized well. The ones I reverse engineered are in directories named v3m0 and v3m4. Gary's code is in Mokotoff. The version I revised for CHM is in v4. There's a paper from IBM System Journal that describes it, at http://vandyke.mynetgear.com/1401/docs/FortranII_1401_SerialCompiler_IBMJR&D_Haines_1965.pdf > > > > The IBM 1401 FORTRAN II compiler consisted of 63 phases. It read > > the > > program into core, then loaded phases that massaged what it had in > > core > > until it eventually had machine code. It ran from a deck of about > > 2,500 > > cards, or from one tape. I have source code for it, and for a > > version I > > revised for the Computer History Museum. I reverse engineered > > operational tapes for two versions. Then the original author, Gary > > Mokotoff, found listings he thought he had lost when he retired. I > > transcribed his listings and assembled them. My code has more > > comments.
