BIOS Fault Localization Through Identifier-Mapped Data Sub-Codes

The patent segments the boot-up process into multiple phases and identifies specific checkpoint moments where problem detection should occur. By dividing the debugging process into discrete checkpoints rather than continuous monitoring, the system maintains problem detection capability while minimizing impact on boot-up speed.

The patent performs preliminary problem detection by checking for the presence of checkpoint information before full debugging is activated. This preliminary action allows the system to identify obvious issues without enabling the complete debugging function, thus maintaining fast boot-up while still providing problem detection for critical issues.

The patent extracts and records key checkpoint information (such as register states, memory contents, and execution flags) at critical moments during boot-up. By taking out only the essential diagnostic data rather than logging all operations, the system achieves reliable problem detection while minimizing time consumption.

The patent implements partial debugging by selectively enabling problem detection at specific checkpoints rather than throughout the entire boot-up process. This partial action provides sufficient diagnostic information for most problems while avoiding the time penalty of comprehensive debugging.

The patent performs preliminary copying of essential serial port information at checkpoint moments during boot-up, rather than continuous copying. This preliminary action captures critical diagnostic data while minimizing the time spent on information copying, thus maintaining problem analysis capability without severely impacting boot-up speed.

The patent extracts only the most critical serial port information at each checkpoint (such as error codes, status flags, and key register values) rather than copying all serial port data. This selective extraction maintains problem analysis capability while reducing the time consumption of information copying.