I should also mention that for the IBM S/23, once the BASIC program is entered, the original source is discarded and only the tokenized code remains (comments are retained as-is). The LIST command runs a de-tokenizer and reconstructs the original source (well close to it anyway).
TTFN - Guy > On Jul 17, 2018, at 12:33 PM, John Foust via cctalk <cctalk@classiccmp.org> > wrote: > > At 03:53 PM 7/14/2018, Fred Cisin via cctalk wrote: >> On Sat, 14 Jul 2018, Ed Sharpe via cctalk wrote: >>> isn't the basic programs also stored in tokinized forms!?!? >> >> Yes. >> And the tokens are not the same between different brand implementations, or >> even between different versions, such as MBASIC 4 and MBASIC 5. >> http://fileformats.archiveteam.org/wiki/Tokenized_BASIC > > I remember a detokenizer for RSTS BASIC-PLUS that's not on that list. > > I think it was called a "decompiler" though. Seemed like magic at the time. > > Googling reveals "You may be remembering the BASIC PLUS > decompiler under RSTS. RSTS BASIC PLUS was interpreted from "push-pop" code. > The symbol table was available in the compiled file, and the correspondence > between push-pop operations and BASIC PLUS source was very close, so you > could get back very reasonable code." > > And our previous discussion of it a decade ago: > > https://marc.info/?l=classiccmp&m=121804804023540&w=2 > > - John >
