This is PCQ Pascal, a compiler I wrote in the late 1980s. Included here is the source for the compiler, the runtime library, include files, and various utilities like a peephole optimizer and a simple 'make' utility.
I fired up my 25-year-old Amiga and copied these files off. I've posted them exactly as they were, except that I changed several files called foo.DOC to foo.txt. In particular, that means that the docs still refer to shareware and a copyright. I have no remaining interest in these files, but neither do I have time to add a proper open source license and remove any restrictions mentioned in these files. If you can use any of this for anything, have at it.
Patrick Quaid June 2015