31 May
2020
31 May
'20
1:11 a.m.
>>> One reaason why you don't hear much
about that is because the first
>>> version of Microsoft Fortran for the PC wasn't real great.
>>> It was written in Microsoft Pascal.
>
> On Sat, 30 May 2020, John Foust via cctalk wrote:
>> Really!
>> How does this connect to Microsoft's FORTRAN-80 for CP/M circa 1977?
>
> unrelated product, with no apparent connections, that I'm aware of. The
> 8080/Z80 FORTRAN-80 would have been a better starting point!
> Bob Wallace wrote the original Microsoft Pascal; I don't know who wrote
> the [PC] Fortran, other than being told that it was written in
> Microsoft Pascal, and to avoid the run-time library.
On Sun, 31 May 2020, Eric Smith wrote:
I assume you mean that Microsoft Fortran for the PC
was written in
Pascal.
I did some reverse-engineering of the Microsoft FORTRAN-80 compiler, and it
appears to be hand-written in 8080 assembly.
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.
Exactly.
Microsoft Fortran for the PC, written in Pascal, was not related to
Microsoft FORTRAN-80 for CP/M, which was written in 8080 assembly.
Microsoft Fortran for the PC was not related to Microsoft FORTRAN-80 for
TRS80, which was a derivative of Microsoft FORTRAN-80 for CP/M, which was
written in 8080 assembly. Because the TRS80 was Z80, I would not be
surprised if some of the TRS80 specific code in Microsoft FORTRAN-80
for TRS80 might have used some Z80.
Microsoft Fortran for the PC was written in Pascal.
It was an unrelated product.
I don't think that any of the Microsoft Fortran products were related to
the Intel FORTRAN-80. Did Microsoft ever develop anything in PL/M?
Did Microsoft ever develop anything for ISIS-II?