Many years ago, I worked with the Pascal Compiler team at Sperry Network Systems, they Forth-based compiler for the Sperry DCP Minicomputers, used in Air Traffi

Many years ago, I worked with the Pascal Compiler team at Sperry Network Systems, they Forth-based compiler for the Sperry DCP Minicomputers, used in Air Traffic Control (I believe). Jan E Jonak wrote the compiler and Wim Morrison was the architecture expert. This help our sister team led by Les Arnott who implemented an OS written in Pascal, to allow us to run and debug a Monolithic program which used to be uploaded directly via a Univac Mainframe. I helped write the Assembler and Pascal Debugger back in the 80s. We also had a student write an assembler code optimiser in Prolog. refs: - https://dl.acm.org/doi/10.1145/988316.988320 https://dl.acm.org/doi/10.1145/988316.988320 - https://dl.acm.org/doi/pdf/10.1145/15022.15025 https://dl.acm.org/doi/pdf/10.1145/15022.15025