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Computer processor system for implementing the ESA/390 STOSM and STNSM instructions without serialization or artificially extending processor execution time
Computer processor system for implementing the ESA/390 STOSM and STNSM instructions without serialization or artificially extending processor execution time
A computer processor that allows the execution of the IBM ESA/390 STOSM and STNSM instructions, in an overlapped fashion, contains an apparatus that allows the STOSM and STNSM instructions to be executed without serializing the processor, or otherwise delaying subsequent instructions, after the STOSM or STNSM instruction, in most cases, thereby improving performance. It contains a mechanism that counts cycles after their execution and prohibits asynchronous interrupts during that time. The invention also contains an efficient mechanism for handling the execution of the STOSM and STNSM instructions when the processor is executing in the SIE environment.
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机译:允许以重叠方式执行IBM ESA / 390 STOSM和STNSM指令的计算机处理器包含一种设备,该设备允许在STOSM之后执行STOSM和STNSM指令而无需序列化处理器或以其他方式延迟后续指令或STNSM指令,在大多数情况下可以提高性能。它包含一种机制,可对执行后的周期进行计数,并在此期间禁止异步中断。本发明还包含一种有效的机制,用于当处理器在SIE环境中执行时处理STOSM和STNSM指令的执行。
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