METHOD AND DEVICE FOR PERFORMING REPEATED BLOCK INSTRUCTION BY ZERO CYCLE OVERHEAD ALONG NESTED LOOP

摘要

PROBLEM TO BE SOLVED: To improve the execution of an instruction loop, circuits, systems, and an execution method to increase the signal processing efficiency of a microprocessor.

SOLUTION: When a block repetition instruction starts an execution, a present status is stored in a stack, and a stack point maintains the stack. When the block repetition instruction is completed, the stored state is recovered from the stack. The status automatically stored and recovered include a block start address, a block endless address, a present repetition counter, and status information for displaying whether the other block repetition instructions are inputted or not.

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