Abstract: A basic input/output system (BIOS) debugging system and method, which is applicable to a BIOS that has a debugging mechanism hidden by the BIOS in normal operation. The debugging method includes the following steps of (1) determining in a power on self test executed by the BIOS whether at least a preset input mode that is used for a user to enter the debugging mechanism is actuated or not, and proceeding to step (2) if the input mode is actuated, or continuing executing the POST; (2) entering the setting mode of the BIOS and displaying the hidden debugging mechanism; and (3) executing debugging functions provided by the debugging mechanism and/or resetting parameters provided by the debugging mechanism. Accordingly, the present invention allows the user to execute the hidden debugging mechanism after the completion of the BIOS initial setting, thereby, increasing the debugging efficiency.

Abstract: A method for dynamically updating system resource allocation statuses applicable to a system platform with a plurality of primary routes is proposed, which allows the OS to know the allocation and application statues of resources (e.g. memories, buses, I/O devices etc.) contained in the system platform for the primary routes. First, a data storage area is established and the resource allocations of primary routes are detected and store in the data storage area by the BIOS. Then, the data stored in the data storage area is filled into update templates for the OS to access. Accordingly, manual input is eliminated and debugging is made easy.