Chapter 4 141
0x3B MONOTONIC_COUNTER
0x3C WATCH_DOG_TIMER
0x3D SECURITY_STUB
0x3E DXE_CPU_IO
0x3F CF9_RESET
0x40 PC_RTC
0x41 STATUS_CODE
0x42 VARIABLE
0x43 EMU_VARIABLE
0x44 DXE_CHIPSET_INIT
0x45 DXE_ALERT_FORMAT
0x46 PCI_HOST_BRIDGE
0x47 PCI_EXPRESS
0x48 DXE_SB_INIT
0x49 IDE_CONTROLLER
0x4A SATA_CONTROLLER
0x4B SB_SM_BUS
0x4C ISA_ACPI_DRIVER
0x4D ISA_BUS
0x4E ISA_SERIAL
0x4F IDE_BUS
0x50 PCI_BUS
0x51 BOOT_PRIORITY
0x52 FVB_SERVICE
0x53 ACPI_PLATFORM
0x54 PCI_HOT_PLUG
0x55 DXE_PLATFORM
0x56 PLATFORM_IDE
0x57 SMBIOS
0x58 MEMORY_SUB_CLASS
0x59 MISC_SUB_CLASS
0x5A CON_PLATFORM
0x5B SAVE_MEMORY_CONFIG
0x5C ACPI_SUPPORT
0x5D CON_SPLITTER_UGA_VGA / CON_SPLITTER
0x5E VGA_CLASS
0x5F DATA_HUB
0x60 DISK_IO
0x61 MEMORY_TEST
0x62 CRISIS_RECOVERY
0x63 LEGACY_8259
0x64 LEGACY_REGION
0x65 LEGACY_INTERRUPT
Code Description