004B4FDA . E8 39FCFFFF CALL AA.004B4C18 ; 关键call(1)：第一串与第二串作运算,第一串值ABCD作相应运算再与串二BCDE作比较，如相等，则AL置1。
004B4FDF . 84C0 TEST AL,AL
004B4FE1 . 74 27 JE SHORT AA.004B500A
004B4FE3 . 8BD7 MOV EDX,EDI
004B4FE5 . 66:33D6 XOR DX,SI ; 串1与串2xor值入DX，DX＝1713
004B4FE8 . 8BC2 MOV EAX,EDX ; xor值入eax
004B4FEA . 66:35 A500 XOR AX,0A5 ; 再与0A5xor
004B4FEE . 66:33C6 XOR AX,SI ; 再与SI（SI即为BCDE）xor
004B4FF1 . 66:F7D0 NOT AX ; AX再not
004B4FF4 . 66:3B55 FE CMP DX,WORD PTR SS:[EBP-2] ; 1713与6543串比较
004B4FF8 . 74 04 JE SHORT AA.004B4FFE=============>(1)je改为jne
004B4FFA . C645 FB 01 MOV BYTE PTR SS:[EBP-5],1
004B4FFE > 66:3B45 FC CMP AX,WORD PTR SS:[EBP-4]
004B5002 . 74 0A JE SHORT AA.004B500E=============>(2)je改为jne
004B5004 . C645 FB 01 MOV BYTE PTR SS:[EBP-5],1
004B5008 . EB 04 JMP SHORT AA.004B500E
004B500A > C645 FB 01 MOV BYTE PTR SS:[EBP-5],1
004B500E > 807D FB 00 CMP BYTE PTR SS:[EBP-5],0
004B5012 . 74 42 JE SHORT AA.004B5056============>(3)je改为jne
004B5014 . A1 28B24C00 MOV EAX,DWORD PTR DS:[4CB228]
004B5019 . 8B00 MOV EAX,DWORD PTR DS:[EAX]
004B501B . 8B80 F4020000 MOV EAX,DWORD PTR DS:[EAX+2F4]
004B5021 . BA A8514B00 MOV EDX,AA.004B51A8
004B5026 . E8 21DDF8FF CALL AA.00442D4C
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