2018-02-17 18:50:11
| Register | Accumulator | Counter | Data | Base | Stack Pointer | Stack Base Pointer | Source | Destination |
| 64-bit | RAX | RCX | RDX | RBX | RSP | RBP | RSI | RDI |
| 32-bit | EAX | ECX | EDX | EBX | ESP | EBP | ESI | EDI |
| 16-bit | AX | CX | DX | BX | SP | BP | SI | DI |
| 8-bit | AH AL | CH CL | DH DL | BH BL |
ESP 栈顶指针 EBP 栈底指针
int a=0 #初始化全局变量 存放在data段中
xor ecx,