초록 ▼

A laptop computer system includes a protected mode microprocessor capable of operating in restricted and unrestricted modes, and an arrangement which in response to a predetermined condition saves information from the processor and then forcibly switches the processor to its unrestricted mode of ope

A laptop computer system includes a protected mode microprocessor capable of operating in restricted and unrestricted modes, and an arrangement which in response to a predetermined condition saves information from the processor and then forcibly switches the processor to its unrestricted mode of operation. When running a multi-tasking operating system where an application program is being executed in a restricted mode, a suspend/resume operation can be carried out in which the system is substantially powered down and then powered back up, and will resume the interrupted application with the restricted mode back in effect. Further, set-up changes such as adjustment of the processor speed can be made without exiting the application program running in the restricted mode.

대표청구항 ▼

1. An apparatus comprising:a computer system having a microprocessor capable of operating in a protected mode, a memory and a disk drive, said disk drive including a write only register which receives disk drive configuration data from said computer system, said computer system including a system re

1. An apparatus comprising:a computer system having a microprocessor capable of operating in a protected mode, a memory and a disk drive, said disk drive including a write only register which receives disk drive configuration data from said computer system, said computer system including a system responsive to a transfer of disk drive configuration data to said write only register associated with said disk drive for storing in a shadow location of said memory, a duplicate of said disk drive configuration data when said disk drive configuration data is initially loaded into said write only register.