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    • 11. 发明授权
    • Special instruction processing unit for data processing system
    • 数据处理系统特殊指令处理单元
    • US4509116A
    • 1985-04-02
    • US370390
    • 1982-04-21
    • Stanley A. LackeyKim A. MeinerthDavid A. Stoner
    • Stanley A. LackeyKim A. MeinerthDavid A. Stoner
    • G06F9/30G06F9/38G06F15/16G06F15/177
    • G06F9/3877
    • A special instruction processor, such as a floating point accelerator processor, that processes a special class of instructions. Each instruction identifies the number of operands to be processed as well as the number of data words required to be transferred for each operand. The central processing unit retrieves and decodes each instruction, and transfers the special instructions to the special instruction processor. Both processors decode the special instructions to determine the numbers of operands and data words to be transferred. The central processing unit retrieves the data words from memory and transmits them to the special instruction processor. The special instruction processor processes the instruction and signals the central processor when finished. The central processor then causes the special instruction processor to transmit the processed data back to the central instruction processor.
    • 处理特殊指令类别的特殊指令处理器,如浮点加速器处理器。 每个指令标识要处理的操作数的数目以及每个操作数所要传送的数据字数。 中央处理单元检索和解码每条指令,并将特殊指令传送到特殊指令处理器。 两个处理器都对特殊指令进行解码,以确定要传输的操作数和数据字的数量。 中央处理单元从存储器检索数据字,并将其发送到特殊指令处理器。 特殊指令处理器处理指令并在完成时向中央处理器发出信号。 然后,中央处理器使特殊指令处理器将处理的数据发送回中央指令处理器。
    • 12. 发明授权
    • Overlay scan line processing
    • 叠加扫描线处理
    • US06999089B1
    • 2006-02-14
    • US09539637
    • 2000-03-30
    • Fong-Shek LamKim A. Meinerth
    • Fong-Shek LamKim A. Meinerth
    • G09G5/397
    • G09G5/395G09G5/14G09G2340/045G09G2340/125
    • An overlay video processing system provides an early start to pixel processing for the next overlay scan line. The overlay processor begins processing the next overlay scan line while still displaying the current scan line. A FIFO buffer is used to provide the overlay video data to the display. When the buffer provides a predetermined amount of data to the current overlay scan line, the buffer begins to load the data for the next overlay scan line. In one embodiment, the buffer may begin loading data for the next overlay scan line when approximately half the current overlay scan line is displayed.
    • 覆盖视频处理系统为下一个叠加扫描线提供了早期的像素处理开始。 覆盖处理器开始处理下一个叠加扫描线,同时仍显示当前的扫描线。 FIFO缓冲器用于向显示器提供覆盖视频数据。 当缓冲器向当前覆盖扫描线提供预定量的数据时,缓冲器开始加载下一叠加扫描线的数据。 在一个实施例中,当显示当前叠加扫描线的大约一半时,缓冲器可以开始为下一叠加扫描线加载数据。