Though really it’s just Nick Gammon answering questions so actually he wrote it.
GPascal is an amazing feat of programming and if Nick had been more commercially driven it might have been the basis of a big company.
As a kid with my dads 8088 .. I tried GW-Basic but ugh.. then found a free Assembler A86 on a BBS and a book on writing TSRs.
Then the heavens opened and I got a copy of Turbo Pascal which to me was, and still is, the peak of elegant engineering.
I tortured myself with Herb Schilds books and moved to C/C++ .. but learned a lot.. still remember the buzz when I grokked the idea of how a recursive descent compiler worked.
Kudos for writing all this up.
It's kinda fun to go back to writing code in assembly for CP/M systems nowadays, even simpler than MS-DOS due to a smaller set of system APIs.
It was originally marketed for the Aplle II in Australia, then ported to the Commodore 64
Great read, important history.. HACF / Gary Kildall pioneering stuff.