From: "John W. Kennedy" Date: 2006-10-13T08:40:15+09:00 Subject: Re: Ruby vs. Rails Rick DeNatale wrote: > On 10/12/06, John W. Kennedy wrote: >> M. Edward (Ed) Borasky wrote: > >> > I don't recall seeing an open >> > source PL/I compiler. >> >> There have been some efforts to genericize the old (F) compiler (though >> it was written in assembler), which IBM published freely back in the >> 60's, when virtually all software was more or less open source, > > Only in the sense that the source was available, most commonly on > microfiche, and primarily to help you read dumps so you could debug > your, and often IBM's software. The complete source of OS/360 and other 360 operating systems (including compilers, etc.) was available on tape, and for free. I myself used it to add several features to DOS/360's PL/I compiler and to add a job-accounting log to the JCL. -- John W. Kennedy "The blind rulers of Logres Nourished the land on a fallacy of rational virtue." -- Charles Williams. "Taliessin through Logres: Prelude"