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1.发明公开LSI microprocessor chip with backward pin compatibility and forward expandable functionality 失效LSI微处理器芯片，具有后置引脚兼容性和前置可扩展功能
公开(公告)号：EP0177848A3
公开(公告)日：1988-01-13
申请号：EP85112234
申请日：1985-09-26
申请人： Honeywell Bull Inc.
发明人： Bradley, John J.
CPC分类号： G06F15/7842 , G06F1/22 , G06F12/0623
摘要： A chip implemented in new technology is designed to include expandable levels of new functionality. The chip includes compatibility circuits which connect to a number of pins which are unused in the chip it replaces in an existing computer system. The compatibility circuits connect to those internal parts of the new chip that contain the newly added or altered levels of functionality. The new chip is installed in the existing computer system just as the prior chip. When so installed, the compatibility circuits enable the new chip to operate in the same manner as the replaced chip but at high speed and with improved performance. When the new chip is installed in the system for which it was designed, the compatibility circuits enable the chip to operate with a selectable level of new functionality at the same higher speed and improved performance.
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2.发明授权Apparatus and method for converting a number in binary format to a decimal format 失效将二进制格式中的数字转换为十进制格式的装置和方法
公开(公告)号：EP0140158B1
公开(公告)日：1989-05-17
申请号：EP84111464.8
申请日：1984-09-26
申请人： Honeywell Bull Inc.
CPC分类号： H03M7/08
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3.发明公开LSI microprocessor chip with backward pin compatibility and forward expandable functionality 失效LSI微处理器芯片与向后兼容性和向前膨胀插塞引脚功能。
公开(公告)号：EP0177848A2
公开(公告)日：1986-04-16
申请号：EP85112234.1
申请日：1985-09-26
申请人： Honeywell Bull Inc.
发明人： Bradley, John J.
CPC分类号： G06F15/7842 , G06F1/22 , G06F12/0623
摘要： A chip implemented in new technology is designed to include expandable levels of new functionality. The chip includes compatibility circuits which connect to a number of pins which are unused in the chip it replaces in an existing computer system. The compatibility circuits connect to those internal parts of the new chip that contain the newly added or altered levels of functionality. The new chip is installed in the existing computer system just as the prior chip. When so installed, the compatibility circuits enable the new chip to operate in the same manner as the replaced chip but at high speed and with improved performance. When the new chip is installed in the system for which it was designed, the compatibility circuits enable the chip to operate with a selectable level of new functionality at the same higher speed and improved performance.
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4.发明公开Apparatus and method for converting a number in binary format to a decimal format 失效装置和一个二进制数的格式转换为十进制格式方法。
公开(公告)号：EP0140158A2
公开(公告)日：1985-05-08
申请号：EP84111464.8
申请日：1984-09-26
申请人： Honeywell Bull Inc.
CPC分类号： H03M7/08
摘要： A data processing system having a central processing unit (CPU) capable of performing binary and decimal arithmetic software instructions is described. The CPU includes a microprocessor which executes the binary arithmetic software instructions under firmware control. The CPU also includes commercial instruction logic which is used in conjunction with the microprocessor to execute decimal arithmetic operations. The commercial instruction logic also operates under firmware control with the addressing of the firmware microinstructions being controlled by the microprocessor. Also disclosed is the method by which the CPU performs decimal addition, subtraction, multiplication and division arithmetic operations and the method used to convert a number in a binary format to a number in a decimal format and the method used to convert a number in a decimal format to a number in a binary format.
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