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    • 8. 发明授权
    • Invoking externally assisted calls from an isolated environment
    • 从孤立的环境调用外部辅助呼叫
    • US07934063B2
    • 2011-04-26
    • US11693406
    • 2007-03-29
    • Masana MuraseWilfred E. Plouffe, Jr.Masaharu SakamotoKanna ShimizuVladimir Zbarsky
    • Masana MuraseWilfred E. Plouffe, Jr.Masaharu SakamotoKanna ShimizuVladimir Zbarsky
    • G06F13/28
    • G06F9/544
    • A method of invoking power processor element (PPE) serviced C library functions on a synergistic processing element (SPE) running in isolated mode. When the SPE initiates a PPE-serviced function, an SPE stub routine allocates a parameter buffer in an open area of a local store (LS) memory within the SPE. The LS memory includes an open area accessible to the PPE, and an isolated area inaccessible to the PPE. The SPE stub routine copies function parameters corresponding to the PPE-serviced function to a buffer within the open area of the LS memory, and writes a message word, which contains an identification variable of the PPE-serviced function and a location variable of the function parameters, to the open area. When execution is temporarily suspended on the SPE, the PPE reads the message word from the open area of the LS memory and executes the PPE-serviced function.
    • 一种在隔离模式下运行的协同处理元件(SPE)上调用功率处理器元件(PPE)服务C库函数的方法。 当SPE启动PPE服务功能时,SPE stub例程在SPE内的本地存储(LS)存储器的打开区域中分配参数缓冲区。 LS存储器包括PPE可访问的开放区域和PPE无法访问的隔离区域。 SPE存根例程将对应于PPE服务功能的功能参数复制到LS存储器的开放区域内的缓冲区,并写入一个消息字,其中包含PPE服务功能的标识变量和功能的位置变量 参数,到开放区域。 当执行暂停在SPE上时,PPE从LS存储器的打开区域读取消息字,并执行PPE服务功能。