计算机术语“system and level registers”的中英文意思、释义、翻译及用法-计算机英汉双解词典

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术语	system and level registers
释义	system and level registers 系统寄存器和级寄存器 Two categories of registers which exist in some processor architecture: system registers and level registers. System registers contain systemwide information used by the operating systems and appear singularly within the processor. Level registers are used by a task in process at a particular priority level and are replicated for each interrupt level. This structure provides generalpurpose registers for ease of programming while replicatingthese registers on priority levels for fast interrupt response. System registers can be accessed by a program only when the CPU is operating in privileged state(in other words, by the operating system). 存在于某些处理机体系结构中的两类寄存器:系统寄存器和级寄存器。系统寄存器包含有操作系统使用的系统范围信息,并且在处理机中单独地出现。级寄存器由处于特定优先级的任务所使用,并且复制给每个中断级。为加速中断响应,在复制优先级寄存器同时,这种结构还为了易于程序设计而提供通用寄存器。仅当CPU在特权状态中操作时,程序才能存取系统寄存器(换言之,由操作系统使用)。
随便看	unjustified unlink unload unload data set unmapped conversation unmapped physical storage unmapped system unmodified instruction unnumbered format unnumbered frame unnumbered response unordered unpack unpacked decimal unpacked decimal notation unpacked microinstruction unprintable character unprotected dynamic storage unprotected field unprotected storage unqualified call unqualified segment search argument unreasonable message unrecoverable abend unrecoverable error

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