On Sun, May 31, 2020 at 5:50 PM Bill Gunshannon via cctalk < [email protected]> wrote:
> On 5/31/20 2:24 AM, Eric Smith via cctalk wrote: > > > > > > On the other hand, Intel also had a FORTRAN-80 product, which was > unrelated > > to Microsoft FORTRAN-80. Intel FOTRAN-80 ran on their MDS development > > systems under the ISIS-II operating system, and the compiler was written > in > > PL/M. > > > > Which is even funnier when you realize that the PL/M compiler > was written in Fortran. > In at least the more recent versions, Intel FORTRAN-80 on ISIS-II was compiled with the ISIS-II PL/M compiler, which was itself written in PL/M. The ISIS-II PL/M compiler was bootstrapped from the PL/M cross-compiler that was written in FORTRAN, and it's entirely possible that early versions of Intel FORTRAN-80 were developed that way as well.
