2.2 x86 Architecture Details
1 Name all eight 32-bit general-purpose registers.（说出所有8个32位寄存器的名称。）
答 ：EAX EBX ECX EDX EBP ESP ESI EDI
2 Which flag is set when the result of an unsigned arithmetic operation is too large to fit into the
destination?（当无符号算术运算的结果太大而无法放入目标时，将设置哪个标志？）
答 ：The Carry flag (CF)
3 What are the x86 processor’s three basic modes of operation?（x86处理器的三种基本操作模式是什么？）
答 ：protected mode, real-address mode, system management mode.（保护模式，实地址模式，系统管理模式。）
4 Name at least four CPU status flags.（至少说出四个CPU状态标志。）
答 ：The Carry flag (CF)
The Oveflow flag (OF)
The Sign flag (SF)
The Zero flag (ZF)
The Auxiliary Carry flag (AC)
The Parity flag (PF)
5 Which flag is set when the result of a signed arithmetic operation is either too large or too small to fit into the destination?（当有符号算术运算的结果太大或太小而无法放入目标时，将设置哪个标志？）
答 ：The Overflow flag (OF).
6 Besides the stack pointer (ESP), what other register points to variables on the stack?（除了堆栈指针（ESP），还有哪些寄存器指向堆栈上的变量？）
答 ：EBP.
7 Name all six segment registers.（说出所有6个段寄存器的名称。）
答 ：CS SS DS ES FS GS.
8 Which flag is set when an arithmetic or logical operation generates a negative result?（算术或逻辑运算产生否定结果时设置哪个标志？）
答 ：The Sign flag (SF)
9 What special purpose does the ECX register serve?（ECX寄存器有什么特殊用途？）
答 ：Loop counter.