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US5313644A System having status update controller for determining which one of parallel operation results of execution units is allowed to set conditions of shared processor status word 失效
具有用于确定执行单元的并行操作结果中的哪一个被允许设置共享处理器状态字的条件的状态更新控制器的系统

  • 专利标题： System having status update controller for determining which one of parallel operation results of execution units is allowed to set conditions of shared processor status word
  • 专利标题（中）： 具有用于确定执行单元的并行操作结果中的哪一个被允许设置共享处理器状态字的条件的状态更新控制器的系统
  • 申请号： US619852
    申请日： 1990-11-28
  • 公开(公告)号： US5313644A
    公开(公告)日： 1994-05-17
  • 发明人: Masahito Matsuo , Toru Shimizu
  • 申请人： Masahito Matsuo , Toru Shimizu
  • 申请人地址： JPX Tokyo
  • 专利权人： Mitsubishi Denki Kabushiki Kaisha
  • 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
  • 当前专利权人地址： JPX Tokyo
  • 优先权： JPX1-313741 19891201
  • 主分类号： G06F9/30
  • IPC分类号： G06F9/30 ;  G06F9/32 ;  G06F9/38 ;  G06F9/06
System having status update controller for determining which one of parallel operation results of execution units is allowed to set conditions of shared processor status word
摘要：
A data processing system which is provided with a plurality of operation units and a function which executes a plurality of instructions in parallel by each of these plurality of operation units, respectively, wherein operation results executed by these plurality of operation units are reflected on flags which are included in a processor status word (PSW), thereby, those plurality of instructions are executed in parallel in the respective different operation units, and at that time, results of operation processing of the respective instructions are reflected on the flags included in the PSW, then, the flags can be updated by simple control, and the operation results executed by those plurality of operation units are reflected on the flags included in the PSW according to the order of execution of the instructions, thereby, those plurality of instructions are executed in parallel by the respective different operation units, and at that time, the results of operation processing of the respective instructions are reflected on the flags included in the PSW according to the order of execution of the instructions, whereby enabling to realize the high speed operation without providing such complicated processing as temporarily saving information for reflecting the results of operation processing on the flags until processing of the preceding instructions is finished.
摘要（中）：

一种数据处理系统，其具有多个操作单元和分别执行多个操作单元中的每一个并行执行多个指令的功能，其中由这些多个操作单元执行的操作结果被反映在 被包括在处理器状态字（PSW）中，从而在各个不同的操作单元中并行地执行那些多个指令，并且此时各个指令的操作处理结果被反映在包括在PSW中的标志 ，则可以通过简单的控制来更新标志，并且由多个操作单元执行的操作结果根据指令的执行顺序反映在包含在PSW中的标志上，从而执行这些多个指令 并行地由各自的不同的操作单元组成，并且当时的操作处理结果 观察指令根据指令执行顺序反映在PSW中包含的标志上，从而能够实现高速操作，而不需要提供诸如暂时保存用于反映标志上的操作处理结果的信息的复杂处理，直到处理 的上述说明完成。

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