On 2/16/25 12:41, Van Snyder via cctalk wrote: > 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.
It also had better diagnostics than say, the S/360 USA Basic FORTRAN compiler. --Chuck
