MULTITASK PROCESSING METHOD, MULTITASK PROCESSING PROGRAM, AND MULTITASK PROCESSING APPARATUS
PROBLEM TO BE SOLVED: To achieve high-speed multitask processing.SOLUTION: In a multitask processing method, data is copied between a plurality of tasks with a dependence on input-output data, by means of DMA copy. A multitask processing program includes: a receiving step in which a CPU receives cop...
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| Sprache: | eng ; jpn |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To achieve high-speed multitask processing.SOLUTION: In a multitask processing method, data is copied between a plurality of tasks with a dependence on input-output data, by means of DMA copy. A multitask processing program includes: a receiving step in which a CPU receives copying data between a plurality of tasks with a dependence on input-output data; and a copy step of causing a DMA controller to execute copying. A multitask processing apparatus includes the DMA controller that copies data between a plurality of tasks with a dependence on input-output data by means of DMA copy.SELECTED DRAWING: Figure 2
【課題】マルチタスク処理を高速化すること。【解決手段】本発明のマルチタスク処理方法は、複数のタスクに対して、入出力データに依存関係のある複数のタスク間でのデータのコピーをＤＭＡコピーで行う。また、本発明のマルチタスク処理プログラムは、複数のタスクに対して、入出力データに依存関係のある複数のタスク間でのデータのコピーをＣＰＵが受け付ける受付ステップと、前記コピーをＤＭＡコントローラに実行させるコピーステップを備える。また、本発明のマルチタスク処理装置は、複数のタスクに対して、入出力データに依存関係のある複数のタスク間でのデータのコピーをＤＭＡコピーで行うＤＭＡコントローラを備える。【選択図】図２ |
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