INSTRUCTION DECODING AND PROCESSING METHOD FOR NUMERICAL CONTROLLER

摘要

PURPOSE:To shorten the decoding time of a working program by switching the output of an instruction decoding circuit with a changeover switch and processing the plural continuous blocks of the working program of a numerical control NC device in the form of a single block. CONSTITUTION:An instruction reading circuit 1 reads a working program out of a memory 2 by an amount equivalent to a block. An instruction decoding circuit 3 decodes an instruction. A switch 4 decides whether the data decoded by the circuit 3 is delivered to a preceding calculation circuit 5 or the next block instruction is decoded. In case 2 continuous blocks are not related to the control instruction of a machine tool, these blocks are processed repetitively. Thus it is possible to process the plural continuous blocks in the form of a single block.