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    • 3. 发明授权
    • Microprogram control system
    • 微程序控制系统
    • US4835679A
    • 1989-05-30
    • US818685
    • 1986-01-14
    • Hiroyuki KidaHideo Maejima
    • Hiroyuki KidaHideo Maejima
    • G06F9/22G06F9/26
    • G06F9/26G06F9/261
    • Micro instructions having a predetermined relationship with respect to each other are modified so that an original micro instruction and address assigned thereto can be restored by combining one or more modified micro instructions and address assigned thereto. A microprogram memory stores the micro instructions in such a modified form and at the modified address. When an original address is designated, one or more term lines are activated in a decoder of the microprogram memory, and modified micro instructions corresponding to the activated term lines are read-out from a memory array of the microprogram memory. The read modified micro instructions are logically combined to restore the original micro instruction. Thereby, the number of micro instructions to be actually stored in the microprogram memory can be reduced.
    • 修改相对于彼此具有预定关系的微指令,使得可以通过组合一个或多个修改的微指令和分配给其的地址来恢复分配给其的原始微指令和地址。 微程序存储器以这种修改的形式和修改的地址存储微指令。 当指定原始地址时,在微程序存储器的解码器中激活一个或多个术语行,并且从微程序存储器的存储器阵列中读出对应于激活的术语行的修改的微指令。 读取修改的微指令逻辑组合以恢复原始微指令。 由此,可以减少实际存储在微程序存储器中的微指令的数量。
    • 4. 发明授权
    • Microcomputer having peripheral functions
    • 微电脑具有外围功能
    • US4740892A
    • 1988-04-26
    • US760180
    • 1985-07-29
    • Hiroyuki KidaHideo Maejima
    • Hiroyuki KidaHideo Maejima
    • G06F1/00G06F9/22G06F9/26G06F9/28G06F9/38G06F13/28G06F15/78
    • G06F9/3851G06F13/28G06F15/7832G06F9/268
    • On a single semiconductor chip, there are provided an arithmetic logic unit, a general-purpose register for storing data to be processed and data as a result of the operation in the arithmetic logic unit, a peripheral register used for performing the peripheral functions required, a buffer register and an internal bus line through which the above mentioned components conduct the data communication with one another. Further, there is provided on the chip a microprogram storage and control device which stores microinstructions for processing instructions read out from a main memory (an instruction processing) and data processing necessary for performing the required peripheral functions (an auxiliary function processing). The microinstructions are read out successively and decoded one after another to produce control signals for controlling the arithmetic logic unit, the general-purpose register, the peripheral register and the buffer register, whereby these components are shared by the instruction processing and the auxiliary function processing.
    • 在单个半导体芯片上,提供了一种算术逻辑单元,用于存储待处理数据的通用寄存器和作为算术逻辑单元中的操作的结果的数据,用于执行所需外围功能的外设寄存器, 缓冲寄存器和内部总线,上述组件通过该总线彼此进行数据通信。 此外,在芯片上设置有微程序存储和控制装置,其存储用于处理从主存储器读出的指令的微指令(指令处理)以及用于执行所需的外围功能(辅助功能处理)所需的数据处理。 连续读出微指令,逐个解码,生成用于控制算术逻辑单元,通用寄存器,外设寄存器和缓冲寄存器的控制信号,由此通过指令处理和辅助功能处理共享这些元件 。