指令 #
Real Mode #
cbw与cwd ret和retf shr指令 ror指令 端口访问指令in和out int3 jmp far (保护模式下) sgdt pusha pushad
String Data Transfers #
lods(Load String) stos(Store String)
String Comparisons #
scas(string scan instruction) cmps(compare strings instruction)
Protected Mode #
设置段寄存器指令(Load Segment Instruction) lgdt