Illinois FP. An iNTerpreter written in portable C by Arch D. Robinson for a variaNT of Backus' FP with syNTax like ALGOL or Modula-2. IFP Runs under Unix, CTSS (Cray) and MS-DOS. Version 0.5. . Posted to comp.sources.unix volume 10. ["The Illinois Functional Programming INTerpreter", A.D. Robison, Proc 1987 SIGPLAN Conf on INTerpreters and INTerpretive Techniques (June 1987), pp. 64-73]. ["Illinois Functional Programming: A Tutorial", A.D. Robison, BYTE Feb 1987, pp. 115-125]. (1994-10-24)