发明授权
US4491908A Microprogrammed control of extended integer and commercial instruction
processor instructions through use of a data type field in a central
processor unit
失效
通过使用中央处理器单元中的数据类型字段对扩展整数和商业指令处理器指令进行微编程控制
- 专利标题： Microprogrammed control of extended integer and commercial instruction processor instructions through use of a data type field in a central processor unit
- 专利标题（中）： 通过使用中央处理器单元中的数据类型字段对扩展整数和商业指令处理器指令进行微编程控制
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申请号： US326442申请日： 1981-12-01
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公开(公告)号： US4491908A公开(公告)日： 1985-01-01
- 发明人: William E. Woods , Philip E. Stanley
- 申请人： William E. Woods , Philip E. Stanley
- 申请人地址： MA Waltham
- 专利权人： Honeywell Information Systems Inc.
- 当前专利权人： Honeywell Information Systems Inc.
- 当前专利权人地址： MA Waltham
- 主分类号： G06F9/32
- IPC分类号： G06F9/32 ; G06F9/22 ; G06F9/26 ; G06F9/318
摘要：
A data processing system includes a microprogram controlled central processing unit that executes instructions. The instruction words include a data type field for identifying the type of operand processed during the execution of the instruction. The data type field signals and a number of control signals are applied to the address terminals of a read only memory. The read only memory output signals are tested by microwords of a microprogram to branch to firmware routines to process the operand type.
公开/授权文献
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