| 摘要 |
A computer system has a selectable set-up feature to adjust the display screen image presented during power on self test, or POST. The computer memory contains two sets of information that can be presented on the video display screen. An application of power to the computer system, a first form of information from a first video memory area is normally presented to the computer output device. This information is simpler in format, requiring less memory. Also, upon the application of power to the computer system, flags or semaphores direct substantially all of a detailed or verbose screen information from initialization, configuration, or other boot-time routines to a second video memory area while information in the first video memory area is presented on the display. Upon receiving one of a predetermined set of commands, the computer system switches from the first display to the second display, presenting the second verbose screen information on the video screen. The command may be internally generated upon execution of a group of instructions, or it may be received from an input device coupled to the computer system.
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