PL360 {Structured assembly language} for the {IBM 360} and {IBM 370}, with a few high-level constructs. Syntactically it resembles {ALGOL 60}. Its grammar is defined entirely by operator precedence. ["PL/360, A Programming Language for the 360 Computers", N. Wirth, J ACM 15(1):37-74 (Jan 1968)]. (1995-01-05)