发明授权
US4896258A Data processor provided with instructions which refer to both tagged and
tagless data
失效
数据处理器提供有指示标签和无标签数据的指令
- 专利标题: Data processor provided with instructions which refer to both tagged and tagless data
- 专利标题(中): 数据处理器提供有指示标签和无标签数据的指令
-
申请号: US881407申请日: 1986-07-02
-
公开(公告)号: US4896258A公开(公告)日: 1990-01-23
- 发明人: Shinichiro Yamaguchi , Hidekazu Matsumoto , Tadaaki Bandoh , Hiroaki Nakanishi , Kenzi Hirose , Takao Kobayashi , Yoshihiro Miyazaki
- 申请人: Shinichiro Yamaguchi , Hidekazu Matsumoto , Tadaaki Bandoh , Hiroaki Nakanishi , Kenzi Hirose , Takao Kobayashi , Yoshihiro Miyazaki
- 申请人地址: JPX Tokyo JPX Tokyo
- 专利权人: Hitachi, Ltd.,Hitachi Engineering Co., Ltd.
- 当前专利权人: Hitachi, Ltd.,Hitachi Engineering Co., Ltd.
- 当前专利权人地址: JPX Tokyo JPX Tokyo
- 优先权: JPX60-145831 19850704; JPX60-148301 19850708
- 主分类号: G06F9/30
- IPC分类号: G06F9/30 ; G06F9/318 ; G06F9/44
摘要:
A data processor for execution of tagged data and tagless data has a decoder for discriminating whether the data is tagged or tagless one and in case of a tagged data, separates a tag part and uses the remaining part for address computation. The data processor also comprises a unit for evaluating the tag part and a micro program controller for multi-branching in accordance with the evaluation result of the tag part. The tag evaluating unit includes an extender eliminating part for extracting the tag part from data on a data bus, a plurality of tag part storing registers for storing the tag part from the eliminating part under the control of the micro program controller, and a tag multi-way jump encoder for generating a tag multi-way jump address to feed it to the controller on the basis of the outputs of the registers and a signal from the micro program controller, thereby enabling tag multi-way jump.