EXPANDING METHOD OF EFFECTIVE RANGE OF OPERAND

摘要

PURPOSE:To assign efficiently operands by providing a table storing the sections for the practical use of the operands and their effective periods. CONSTITUTION:The table 3 stores the sections for the practical use of temporally defined operands and the effective periods of definition. A source program 1 is registered in the table 3 by a retrieval part 2, and after the completion of the registration, the retrieval part 2 retrieves the source program 1. The practical sections and invalid sections of the table 3 are defined by the counted values ouputted from a counter 4 and the effective range of a temporary operand is controlled by the practical section of the table 3.