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 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]1. An apparatus, comprising: a processor having first and second operational modes, wherein in said first operational mode said processor has a predetermined set of operational capa

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]1. An apparatus, comprising: a processor having first and second operational modes, wherein in said first operational mode said processor has a predetermined set of operational capabilities and in said second operational mode said processor can perform a first subset of said operational capabilities and is inhibited from performing a second subset of said operational capabilities different from said first subset, control means responsive to a predetermined condition for saving information from said processor and for thereafter forcing said processor to said first operational mode, means responsive to said forcing of said processor to said first operational mode for effecting a predetermined operation and for thereafter restoring said information to said processor, said information including an indication of which of said first and second operational modes said processor was in at the occurrence of said predetermined condition so that said processor resumes operation in such operational mode, said apparatus further including a first display, a second display, means responsive to said processor for displaying information from said processor on a selected one of said displays, and manually actuatable means, wherein said predetermined condition is actuation of said manually actuatable means, and wherein said predetermined operation is switching from a currently selected one of said displays to the other thereof.