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    • 12. 发明授权
    • Mixed superscalar and VLIW instruction issuing and processing method and system
    • 混合超标量和VLIW指令发布和处理方法和系统
    • US07590824B2
    • 2009-09-15
    • US11093375
    • 2005-03-29
    • Muhammad AhmedErich PlondkeLucian CodrescuWilliam C. Anderson
    • Muhammad AhmedErich PlondkeLucian CodrescuWilliam C. Anderson
    • G06F9/30
    • G06F9/3853G06F9/3836G06F9/3838G06F9/3857
    • Techniques for processing transmissions in a communications (e.g., CDMA) system. A method and system for issuing and executing mixed architecture instructions in a multiple-issue digital signal processor receives in a mixed instruction listing a plurality of digital signal processor instructions. The plurality of digital signal processor instructions includes a plurality of parallel executable instructions (e.g., VLIW instructions or instruction packets) mixed among a plurality of series executable instructions (e.g., superscalar instructions). The series executable instructions are associated by various instruction dependencies. The method and system further identify in the mixed instruction listing the plurality of parallel executable instructions. Once identified, the parallel executable instructions are first executed in parallel irrespective of any such instruction's relative order in the mixed instruction listing. Then, the series executable instructions are executed serially according to said various instruction dependencies.
    • 用于在通信(例如,CDMA)系统中处理传输的技术。 用于在多问题数字信号处理器中发出和执行混合架构指令的方法和系统以列出多个数字信号处理器指令的混合指令接收。 多个数字信号处理器指令包括在多个串行可执行指令(例如,超标量指令)中混合的多个并行可执行指令(例如,VLIW指令或指令分组)。 该系列可执行指令通过各种指令依赖关联。 该方法和系统进一步标识列出多个并行可执行指令的混合指令。 一旦确定,并行执行并行执行指令,而不管混合指令列表中的这种指令的相对顺序如何。 然后,根据所述各种指令依赖性,串行执行指令被串行执行。
    • 17. 发明授权
    • Method for executing graphics Z-compare and pixel merge instructions in
a data processor
    • 用于在数据处理器中执行图形Z比较和像素合并指令的方法
    • US5268995A
    • 1993-12-07
    • US616973
    • 1990-11-21
    • Keith E. DiefendorffWilliam C. Anderson
    • Keith E. DiefendorffWilliam C. Anderson
    • G06T15/40G06F15/66
    • G06T15/405
    • A method for performing graphics Z-compare and pixel merge operations, for use in a Z-buffering system to remove hidden surfaces when displaying a three-dimensional image, is provided. The data processing system includes a main memory for storing data and instructions, and a graphics execution unit for executing graphics instructions. The graphics execution units are connected to an instruction sequencer, which provides instructions and data operands to the execution units, via a communications bus. In response to receiving Z-compare and pixel merge instructions, the graphics execution unit compares one or more Z-axis coordinates within a first data operand to one or more Z-axis coordinates in a corresponding bit-field position within a second data operand to determine a relative Z-axis position of each of the one or more pixels associated with the one or more Z-axis coordinates. A pixel compare result bit-vector uniquely representing the possible results of comparing each of the corresponding bit-field positions is stored in a register. Utilizing the pixel compare result vector, the graphics execution unit executes a pixel merge instruction, to selectively store the pixels in an image buffer.
    • 提供了一种用于执行图形Z比较和像素合并操作的方法,用于在Z缓冲系统中用于在显示三维图像时去除隐藏的表面。 数据处理系统包括用于存储数据和指令的主存储器和用于执行图形指令的图形执行单元。 图形执行单元连接到指令定序器,该指令定序器通过通信总线向执行单元提供指令和数据操作数。 响应于接收Z比较和像素合并指令,图形执行单元将第一数据操作数中的一个或多个Z轴坐标与第二数据操作数中的对应位域位置中的一个或多个Z轴坐标进行比较,以 确定与一个或多个Z轴坐标相关联的一个或多个像素中的每一个的相对Z轴位置。 唯一表示比较每个相应位域位置的可能结果的像素比较结果位向量被存储在寄存器中。 利用像素比较结果向量,图形执行单元执行像素合并指令,以选择性地将像素存储在图像缓冲器中。