专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5408674A System for checking the validity of two byte operation code by mapping two byte operation codes into control memory in order to reduce memory size 失效
标题翻译：用于通过将两个字节的操作码映射到控制存储器中以检查两字节操作码的有效性的系统，以减少存储器大小
公开(公告)号：US5408674A
公开(公告)日：1995-04-18
申请号：US995772
申请日：1992-12-23
申请人： Christopher I. W. Norrie , Carolee N. Newcomb , Peter K. Yu
发明人： Christopher I. W. Norrie , Carolee N. Newcomb , Peter K. Yu
IPC分类号： G06F9/30 , G06F9/32 , G06F9/28
CPC分类号： G06F9/30145
摘要： A mapping system for mapping a plurality of two byte operation code series into a control store where in each two byte operation code the first byte identifies the series in which that two byte operation code is included and the second byte identifies that specific operation code within the identified series, the mapping system comprising a first register for storing the first and second bytes of a two byte operation codes, a first control store for storing control word for the two byte operation codes, a first means for generating, from the first and second bytes stored in the first register, a first control store address for the first control store thereby providing access to the control word for processing the two byte operation code store in the first register and a second means for generating, from the first and second bytes stored in the first register, a first signal when an invalid two byte operation code has been stored in the first register for processing, the first signal invalidating the processing of the two byte operation code stored in the first register including any processing of the control word accessed by the first control store in response to the first control store address generated by the first means.
摘要翻译：一种用于将多个两字节操作代码序列映射到控制存储器中的映射系统，其中在每个两字节操作代码中，第一字节标识包含该两字节操作代码的序列，而第二字节标识该字节内的特定操作码所述映射系统包括用于存储两字节操作码的第一和第二字节的第一寄存器，用于存储用于所述两字节操作码的控制字的第一控制存储器，用于从所述第一和第二字节存储在第一寄存器中的字节，用于第一控制存储器的第一控制存储地址，从而提供对用于处理第一寄存器中的两字节操作代码存储的控制字的访问;以及第二装置，用于从存储的第一和第二字节在第一个寄存器中，第一个信号当一个无效的两个字节的操作码已被存储在第一个寄存器中进行处理时，第一个信号进入验证存储在第一寄存器中的两字节操作码的处理，包括响应于由第一装置产生的第一控制存储地址由第一控制存储器访问的控制字的任何处理。

IPRDB

热门服务

关于我们

友情链接

联系方式