name "PDP 11 assembler" dir as end name "PDP 11 backend" dir cg end name "PDP 11 target optimizer" dir top end name "PDP 11 conversion program" dir cv end name "PDP 11 interpreter" system pdp* dir int end name "PDP 11 C libraries" dir libcc end name "PDP 11 EM library" dir libem end name "PDP 11 systemcall library" dir libsys end name "PDP 11 Pascal library" dir libpc end name "PDP 11 Basic library" dir libbc end name "PDP 11 Occam library" dir liboc end