The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2011
Filed:
Apr. 17, 2009
Jin Zhang, Kunshan, CN;
Jin Zhang, Kunshan, CN;
Micro-Star Int'l Co., Ltd., Jung-He, TW;
MSI Electronic (Kun Shan) Co., Ltd., Kunshan, CN;
Abstract
A method and an apparatus for preventing a basic input/output system (BIOS) from failing to enter a boot program are adapted to solve the problem that when a central processing unit (CPU) executes a first instruction after a computer is powered on, a start address to be executed is erroneously set as another corresponding start address, resulting in that a BIOS cannot enter a boot program. In the method of the present invention, a jump instruction is written to the corresponding start address, so as to enable an execution instruction to jump to a boot block of the BIOS when the start address is erroneously set in the computer, thus performing a normal boot operation. Moreover, in the present invention, a step for checking a register that may cause the start address to be inverted to the corresponding start address is further added to the BIOS program, such that in each boot process, the value of the register can be pre-checked and overwritten when an error occurs, so as to avoid the problem of false pointing next time the computer is booted.