发明授权
US6122724A Central processing unit having instruction queue of 32-bit length
fetching two instructions of 16-bit fixed length in one instruction
fetch operation
有权
中央处理单元具有32位长度的指令队列，在一个指令提取操作中获取16位固定长度的两个指令
- 专利标题： Central processing unit having instruction queue of 32-bit length fetching two instructions of 16-bit fixed length in one instruction fetch operation
- 专利标题（中）： 中央处理单元具有32位长度的指令队列，在一个指令提取操作中获取16位固定长度的两个指令
-
申请号： US250922申请日： 1999-02-16
-
公开(公告)号： US6122724A公开(公告)日： 2000-09-19
- 发明人: Shumpei Kawasaki , Eiji Sakakibara , Kaoru Fukada , Takanaga Yamazaki , Yasushi Akao , Shiro Baba , Toshimasa Kihara , Keiichi Kurakazu , Takashi Tsukamoto , Shigeki Masumura , Yasuhiro Tawara , Yugo Kashiwagi , Shuya Fujita , Katsuhiko Ishida , Noriko Sawa , Yoichi Asano , Hideaki Chaki , Tadahiko Sugawara , Masahiro Kainaga , Kouki Noguchi , Mitsuru Watabe
- 申请人： Shumpei Kawasaki , Eiji Sakakibara , Kaoru Fukada , Takanaga Yamazaki , Yasushi Akao , Shiro Baba , Toshimasa Kihara , Keiichi Kurakazu , Takashi Tsukamoto , Shigeki Masumura , Yasuhiro Tawara , Yugo Kashiwagi , Shuya Fujita , Katsuhiko Ishida , Noriko Sawa , Yoichi Asano , Hideaki Chaki , Tadahiko Sugawara , Masahiro Kainaga , Kouki Noguchi , Mitsuru Watabe
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX3-178739 19910624; JPX4-154525 19920521
- 主分类号： G06F9/28
- IPC分类号： G06F9/28 ; G06F7/483 ; G06F7/52 ; G06F7/527 ; G06F7/535 ; G06F7/537 ; G06F9/30 ; G06F9/302 ; G06F9/305 ; G06F9/318 ; G06F9/32 ; G06F9/38 ; G06F15/00
摘要：
A microcomputer MCU adopting the general purpose register method is enabled to have a small program capacity or a high program memory using efficiency and a low system cost, while enjoying the advantage of simplification of the instruction decoding as in the RISC machine having a fixed length instruction format of the prior art, by adopting a fixed length instruction format having a power of 2 but a smaller bit number than that of the maximum data word length fed for instruction execution. And, the control of the coded division is executed by noting the code bits.
公开/授权文献
- US5494206A Wire bonding method and apparatus 公开/授权日：1996-02-27
信息查询
