JANUS/ADA by RR Software is a subset of the ADA programming language developed by the U.S. Department of Defense. ADA combines the best features of languages like Pascal, Algol, and PL/I. JANUS/ADA includes many features such as true modular programming, full error messages in English, walk-backs, and re-entrant initialized variables. Code is ROMable. Comes with complete tools for program development including the compiler, an assembler, a linker, a disassembler, a cross reference generator, a syntax checker, example programs, and source code for the run-time libraries.\n\nOriginal retail price: $300/$75 (Westico Professional CP/M Software Catalog for ADAM, 1984)
Requires CP/M 2.2 and Dual disk.