2527	 Implementation of High Level Language Machine	 Computing machines which directly execute the statements of a high level language have been proposed in the past. This report describes the actual implementation of such a machine it is a computer whose machine language is APL. The machine is fully operational and correctly executes almost all of the APL operations on scalars vectors and arrays. The machine automatically allocates memory executes statements calls functions converts numbers from one type to another checks subscripts and automatically detects many types of programmer errors. computer architecture high level language machine emulators microprogramming interpreters execution speed APL
