This was the 2nd version of the Pascal-P compiler created by Niklaus Wirth's group at ETH Zurich, termed Pascal-P2.
This was the original portable compiler for Pascal. Niklaus Wirth led an effort to gather and reconcile the different sources for the Pascal-P compiler in existence, which were collectively referred to as Pascal-P1.These were then published as part of a porting kit for the compiler.
Pascal-P2 is a "Running history project". It is a historical record, but still runs on modern computers.
Pascal-P2 exists mainly for historical reference. It was improved at ETH Zurich to become Pascal-P4, and brought to full ISO 7185 standard status as Pascal-P5.
You can find all of the Pascal-P versions here in sourceforge:
https://sourceforge.net/projects/pascal-s/
https://sourceforge.net/projects/pascal-p2/
https://sourceforge.net/projects/pascalp4/
https://sourceforge.net/projects/pascalp5/
https://sourceforge.net/projects/pascal-p6/
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