ISPF issues ALLOC commands based on the ISPF libraries, data set names, list IDs, options, and additional input libraries you enter on the Foreground Assembler H and Foreground VS COBOL II Compile panels. All allocations are done before Assembler H and the VS COBOL II compiler are called.

Because Assembler H and VS COBOL II do not provide a language prompter, ISPF allocates the required data sets for you. Subsequent topics describe the data sets ISPF allocates when you use Assembler H or the VS COBOL II compiler.