发明授权
- 专利标题: Data processing device including a microprocessor and an additional arithmetic unit
- 专利标题(中): 数据处理装置包括微处理器和附加运算单元
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申请号: US903566申请日: 1997-07-31
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公开(公告)号: US5889622A公开(公告)日: 1999-03-30
- 发明人: Thomas Wille , Ralf Malzahn , Jean-Jaques Quisquater , Ronald Ferreira
- 申请人: Thomas Wille , Ralf Malzahn , Jean-Jaques Quisquater , Ronald Ferreira
- 申请人地址: NY New York
- 专利权人: U.S. Philips Corporation
- 当前专利权人: U.S. Philips Corporation
- 当前专利权人地址: NY New York
- 优先权: DEX19630861.5 19960731
- 主分类号: G06F15/16
- IPC分类号: G06F15/16 ; G06F9/318 ; G06F9/38 ; H04K1/00 ; G06F7/38
摘要:
The arithmetic unit in a data processing system with a microprocessor and an additional arithmetic unit carries out special arithmetic operations, preferably integrated in a single semiconductor chip, is controlled by the microprocessor via a number of registers. Several sets of such registers are provided. The registers of one set are selected via a selection circuit. As a result, a set of registers which is not required during execution of a calculation by the arithmetic unit can be filled with new data by the microprocessor and, after completion of the calculation in the arithmetic unit, switching over to a newly filled set of registers takes place so that the arithmetic unit can continue with a new set of operands without having to observe a waiting period.
公开/授权文献
- US5434119A Transparent recording medium 公开/授权日:1995-07-18
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