Function Graph 0 Basic Block 0 Opcode: 31 c0_start: Opcode: 31 c0xor     eax, eax  {0x0} Opcode: 74 01je      0x805155f Basic Block 1 Opcode: 85 c9test    ecx, ecx Opcode: 74 08je      0x805156b Basic Block 2 Opcode: e8 85 c9 74 08call    0x1079dee8 Basic Block 3 Opcode: 31 c0xor     eax, eax  {0x0} Opcode: 31 dbxor     ebx, ebx  {0x0} Opcode: 31 d2xor     edx, edx  {0x0} Opcode: e8 2b a3 ff ffcall    sub_804b8a1 Opcode: 50push    eax Opcode: e8 00 00 00 00call    $+5 Opcode: e8 00 00 00 00{ Falls through into sub_805157c } Basic Block 4 Opcode: 0f b6 01movzx   eax, byte [ecx] Opcode: 29 c4sub     esp, eax Opcode: 83 e4 f0and     esp, 0xfffffff0