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1. 发明授权

US4747044A Direct execution of software on microprogrammable hardware 失效
标题翻译：在可编程硬件上直接执行软件
公开(公告)号：US4747044A
公开(公告)日：1988-05-24
申请号：US643512
申请日：1984-08-23
申请人： Carson T. Schmidt , Chenyu Chao , Gregory D. Brinson , Jerrold L. Allen , Barry L. Loges , Timothy G. Goldsbury , Robert O. Gunderson , Jerry K. Herreweyers
发明人： Carson T. Schmidt , Chenyu Chao , Gregory D. Brinson , Jerrold L. Allen , Barry L. Loges , Timothy G. Goldsbury , Robert O. Gunderson , Jerry K. Herreweyers
IPC分类号： G06F9/22 , G06F12/10 , G06F13/08
CPC分类号： G06F9/22 , G06F12/1063
摘要： A data processing system including an addressable main memory for storing data and directly executable microinstructions, and a central processing chip having a data interface terminal and an instruction terminal. A processor memory bus is connected between the main addressable memory and the central processing chip data interface terminal. An instruction bus is connected between the central processing chip instruction terminal and the addressable memory.The directly executable microinstructions in the addressable main memory are fetched from the main memory by an apparatus which includes an instruction address circuit connected to the processor memory bus and the instruction bus. The instruction address circuit includes a virtual address register circuit for receiving a portion of a virtual address from the instruction bus, and a portion of the mentioned virtual address from the processor memory bus. A virtual-to-real translation circuit in the instruction address circuit translates the virtual address in the virtual address register to a real address in the addressable memory from which an executable microinstruction may be fetched.
摘要翻译：一种数据处理系统，包括用于存储数据和可直接执行的微指令的可寻址主存储器，以及具有数据接口终端和指令终端的中央处理芯片。处理器存储器总线连接在主可寻址存储器和中央处理芯片数据接口终端之间。指令总线连接在中央处理芯片指令终端和可寻址存储器之间。可寻址主存储器中的可直接执行的微指令通过包括连接到处理器存储器总线和指令总线的指令地址电路的装置从主存储器中取出。指令地址电路包括用于从指令总线接收虚拟地址的一部分的虚拟地址寄存器电路和来自处理器存储器总线的所述虚拟地址的一部分。指令地址电路中的虚拟到实际的转换电路将虚拟地址寄存器中的虚拟地址转换为可寻址存储器中的可实际地址，可从中获取可执行的微指令。

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