-
1.
公开(公告)号:US5812836A
公开(公告)日:1998-09-22
申请号:US41922
申请日:1993-04-02
申请人: Matthew Damien Bates , Nicholas David Butler , Malcolm Douglas Buttimer , Adrian Charles Gay , Jong-Han Kim
发明人: Matthew Damien Bates , Nicholas David Butler , Malcolm Douglas Buttimer , Adrian Charles Gay , Jong-Han Kim
CPC分类号: G06F9/3001 , G06F9/30072 , G09G5/20
摘要: A data processor comprises storage (e.g., registers) for each of first, second and third values, a processor condition register for processor condition codes, and logic for decoding instructions including a specific instruction defining an operation between the first value and either the second value or the third value, the selection of the second or the third value being made by the processor in dependence on the state of said processor condition code. The invention is of particular, but not exclusive, application for the plotting of lines in a display system. In an example of a display system incorporating such a data processor, a pixel can be plotted on each processor instruction cycle.
摘要翻译: 数据处理器包括用于第一,第二和第三值中的每一个的存储(例如,寄存器),用于处理器条件代码的处理器条件寄存器,以及用于解码指令的逻辑,所述指令包括定义第一值和第二值之间的操作的特定指令 或第三值,根据所述处理器条件代码的状态,由处理器进行第二或第三值的选择。 本发明对于在显示系统中绘制线条是特别但并不排他的应用。 在包含这种数据处理器的显示系统的示例中,可以在每个处理器指令周期上绘制像素。