它们可用来向内存流控制器发出dma命令、处理SPE事件、向PPE和从PPE读写消息。
They are used for issuing DMA commands to the memory flow controller, handling SPE events, and reading and writing messages to and from the PPE.
可以使用bph和bpha命令(假如体系结构支持使用硬件寄存器)来应用读写断点。
The BPH and bpha commands can be used (provided the architecture supports use of hardware registers) to apply read and write breakpoints.
要应用以下知识点：文件的读写；字符数组的操作；命令行参数的使用。
Knowledge points to the following: file read and write character array operations command line arguments to use.
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