A low-level iNTerpreted language used in bootstrapping the BCPL compiler. The INTCODE machine has six coNTrol registers and eight functions. OCODE was used as the iNTermediate language. ["INTCODE - An INTerpretive Machine Code for BCPL", M. Richards, Computer Lab, U Cambridge 1972]. ["BCPL - The Language and its Compiler", Martin Richards & Colin Whitby-Stevens, Cambridge U Press 1979].