00457BBE |. 55 PUSH EBP
00457BBF |. 68 8A7E4500 PUSH up123.00457E8A
00457BC4 |. 64:FF30 PUSH DWORD PTR FS:[EAX]
00457BC7 |. 64:8920 MOV DWORD PTR FS:[EAX],ESP
00457BCA |. 8D55 FC LEA EDX,DWORD PTR SS:[EBP-4]
00457BCD |. 8B83 D8020000 MOV EAX,DWORD PTR DS:[EBX+2D8]
00457BD3 |. E8 08C3FCFF CALL up123.00423EE0 ; 取注册名位数
00457BD8 |. 837D FC 00 CMP DWORD PTR SS:[EBP-4],0 ; 输入注册名了吗
00457BDC |. 75 18 JNZ SHORT up123.00457BF6
00457BDE |. 6A 00 PUSH 0
00457BE0 |. B9 987E4500 MOV ECX,up123.00457E98 ; enter your name !
00457BE5 |. BA AC7E4500 MOV EDX,up123.00457EAC ; you must enter your name !
00457BEA |. A1 98A54500 MOV EAX,DWORD PTR DS:[45A598]
00457BEF |. 8B00 MOV EAX,DWORD PTR DS:[EAX]
00457BF1 |. E8 3A85FEFF CALL up123.00440130
00457BF6 |> 8D55 FC LEA EDX,DWORD PTR SS:[EBP-4] ; EBP-4=注册名
00457BF9 |. 8B83 DC020000 MOV EAX,DWORD PTR DS:[EBX+2DC]
00457BFF |. E8 DCC2FCFF CALL up123.00423EE0 ; 取假码位数
00457C04 |. 837D FC 00 CMP DWORD PTR SS:[EBP-4],0 ; 输入注册码了吗
00457C08 |. 75 18 JNZ SHORT up123.00457C22
00457C0A |. 6A 00 PUSH 0
00457C0C |. B9 C87E4500 MOV ECX,up123.00457EC8 ; enter a serial !
00457C11 |. BA DC7E4500 MOV EDX,up123.00457EDC ; you must enter a serial !
如其中的一句
00457BD3 |. E8 08C3FCFF CALL up123.00423EE0 ; 取注册名位数
怎么知道这个CALL是用来取注册名的位数,不懂呀
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