Information processing apparatus and its data processing method capable of forming descriptor queue

摘要

In an information processing apparatus, a descriptor queue forming unit (6) forms descriptors (DSC) each including one task command (TASKCMD) for designating one task program (TASK PRG) and corresponding to one task data (TDA) processed by the program, forms descriptor columns (Q0A, Q0B; Q1A, Q1B) each formed by linking at least two of the descriptors including the same task command, and forms descriptor queues (Q0, Q1) each formed by linking the descriptor columns. A memory (3) stores the task data and the descriptor queues. A stream processor (2) sequentially reads the descriptors from the memory in accordance with a structure of the descriptor queues and perform processings upon the task data corresponding to the read descriptors, respectively, using respective ones of the programs indicated by the task commands of the read descriptors, respectively.