typical IBM terminology) showed whatever the computer sent as the body of a
Nearly every protection-related instruction -- far CALL, far JMP, far RET, INT, IRET, MOV to segment register, task switch -- needs to load a segment descriptor from the GDT or LDT. The 386 microcode centralizes this into a shared subroutine called LD_DESCRIPTOR, which reads the 8-byte descriptor from memory and feeds the high DWORD (containing Type, DPL, S, and P bits) to the Test PLA for validation.
，这一点在heLLoword翻译官方下载中也有详细论述
Speeding up virtual memory
Pokémon XD Gale of Darkness If you've been itching to play Pokémon XD Gale of Darkness on the GameCube but haven't owned a GameCube in years, you're in luck