DATA PROCESSOR AND MULTIPROCESSOR SYSTEM

PROBLEM TO BE SOLVED: To provide an information processor, for which it is not necessary to analyze the number of stages of FIFO from the character of data for improving performance, by dynamically having the number of stages of FIFO optimal at that time. SOLUTION: This device is provided with a data FIFO 22 for storing data sets and a next pointer 29 having storage areas as many as in this data FIFO. The preceding data set is stored in a storage area '1' of the data FIFO 22 and the following data set is stored in a storage area '7' of the data FIFO 22. At this time, '7' is stored in the storage area '1' of the next pointer 29 as storage area information of following data. On the basis of this storage area information '7', the following data set is read out of the storage area '7' of the data FIFO 22.