Maintaining extended and traditional states of a processing unit in task switching
    1.
    发明授权
    Maintaining extended and traditional states of a processing unit in task switching 有权
    在任务切换中维护处理单元的扩展和传统状态

    公开(公告)号:US06526431B1

    公开(公告)日:2003-02-25

    申请号:US09257923

    申请日:1999-02-26

    IPC分类号: G06F900

    CPC分类号: G06F9/30043

    摘要: The present invention is a method and apparatus for switching first and second tasks in an operating system. The first and second tasks each have first and second traditional states and first and second extended states, in a processing unit. The method comprises: (a) saving the first traditional and extended states from the processing unit to a buffer; (b) updating the buffer by replacing the first extended state by the second extended state; and (c) restoring the first traditional state and the second extended state in the processing unit from the updated buffer.

    摘要翻译: 本发明是用于在操作系统中切换第一和第二任务的方法和装置。 第一和第二任务在处理单元中具有第一和第二传统状态以及第一和第二扩展状态。 该方法包括:(a)将第一传统和扩展状态从处理单元保存到缓冲器; (b)通过将第一扩展状态替换第二扩展状态来更新缓冲器; 和(c)从更新的缓冲器恢复处理单元中的第一传统状态和第二扩展状态。