Function at 0x4d71f4
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x20
push ebx
push esi
mov esi, dword [ebp + 0xc]
push edi
mov edi, dword [ebp + 8]
test edi, edi
jne 0x4d7211
push 0x80004005
call fcn.0040122f
test esi, esi
je 0x4d7207
cmp edi, esi
je 0x4d7207
mov bl, byte [edi]
xor edx, edx
and dword [ebp - 0x1c], edx
and dword [ebp - 0x14], edx
test bl, bl
lea eax, [esi + 0x823]
mov dword [ebp - 8], edx
mov dword [ebp - 0xc], 1
mov dword [ebp - 0x10], 0x20
mov dword [ebp - 0x20], esi
mov dword [ebp - 0x18], eax
je 0x4d7469
inc edi
cmp edx, 0x823
mov dword [ebp + 8], edi
jne 0x4d7258
and dword [ebp - 0xc], 0
cmp bl, 0x3a
jne 0x4d72d1
test byte [ebp - 0x10], 0x80
je 0x4d7323
cmp dword [ebp - 0x14], 0
jne 0x4d7323
cmp dword [ebp - 0xc], 0
je 0x4d72c8
mov eax, esi
sub eax, edx
cmp eax, dword [ebp - 0x20]
mov byte [esi], 0
jb 0x4d7207
cmp eax, dword [ebp - 0x18]
ja 0x4d7207
mov ecx, dword [ebp - 0x18]
sub ecx, eax
inc ecx
push ecx
push eax
call dword [0x10139690]
push eax
call fcn.00407d22
add esp, 0xc
cmp dword [ebp - 8], 4
jne 0x4d72c8
push 4
lea eax, [esi - 4]
push eax
push 0x10148a98
call dword [0x101396d8]
add esp, 0xc
test eax, eax
jne 0x4d72c8
mov dword [ebp - 0x1c], 1
mov eax, dword [ebp - 8]
inc eax
mov dword [ebp - 0x14], eax
jmp 0x4d7323
cmp bl, 0x25
jne 0x4d730f
test byte [ebp - 0x10], 4
je 0x4d7323
mov al, byte [edi]
test al, al
je 0x4d745b
inc edi
mov cl, byte [edi]
test cl, cl
mov byte [ebp - 1], cl
je 0x4d745b
inc edi
mov dword [ebp + 8], edi
call fcn.004d70c8
mov bx, ax
mov al, byte [ebp - 1]
shl bl, 4
call fcn.004d70c8
add bl, al
jmp 0x4d7323
cmp bl, 0x3f
je 0x4d7319
cmp bl, 0x23
jne 0x4d7323
test byte [ebp - 0x10], 0x20
je 0x4d7323
or dword [ebp - 0x10], 2
mov eax, dword [ebp - 0x10]
test al, al
jns 0x4d738d
test al, 2
jne 0x4d738d
cmp bl, 0x5c
jne 0x4d7354
xor ecx, ecx
cmp dword [ebp - 0x14], ecx
jne 0x4d7340
test ax, 0x100
je 0x4d738d
cmp dword [ebp - 0xc], ecx
je 0x4d738d
cmp dword [ebp - 0x1c], ecx
je 0x4d7350
cmp dword [ebp - 8], 7
jae 0x4d738d
mov bl, 0x2f
jmp 0x4d738d
cmp bl, 0x2e
jne 0x4d738d
mov ecx, dword [ebp - 8]
test ecx, ecx
jbe 0x4d738d
test al, 8
jne 0x4d738d
push dword [ebp - 0x14]
lea edx, [ebp + 0xc]
push eax
lea eax, [ebp - 8]
push eax
lea eax, [ebp + 8]
push eax
lea eax, [esi - 1]
push edx
call fcn.004d712a
mov esi, dword [ebp + 0xc]
mov edi, dword [ebp + 8]
add esp, 0x14
test eax, eax
jne 0x4d744e
movzx ecx, bl
cmp ecx, 0x40
jg 0x4d73b5
cmp ecx, 0x3b
jge 0x4d73d6
cmp ecx, 0x20
je 0x4d73d6
cmp ecx, 0x21
jle 0x4d73cc
cmp ecx, 0x26
jle 0x4d73d6
cmp ecx, 0x2a
jle 0x4d73cc
cmp ecx, 0x2c
jle 0x4d73d6
jmp 0x4d73cc
cmp ecx, 0x5b
jl 0x4d73cc
cmp ecx, 0x5e
jle 0x4d73d6
cmp ecx, 0x60
je 0x4d73d6
lea eax, [ecx - 0x7b]
cmp eax, 2
jbe 0x4d73d6
cmp bl, 0x20
jb 0x4d73d6
cmp bl, 0x7e
jbe 0x4d743f
mov al, byte [ebp - 0x10]
test al, 2
jne 0x4d743f
test al, 0x10
je 0x4d73e6
cmp bl, 0x20
jne 0x4d743f
test al, 8
je 0x4d73ef
cmp bl, 0x2e
je 0x4d743f
test al, 0x40
jne 0x4d73f8
cmp bl, 0x25
je 0x4d743f
cmp dword [ebp - 8], 0x820
jb 0x4d7405
and dword [ebp - 0xc], 0
cmp dword [ebp - 0xc], 0
je 0x4d7439
cmp bl, 0x10
mov byte [esi], 0x25
lea eax, [esi + 1]
jae 0x4d741a
mov byte [eax], 0x30
inc eax
mov edx, dword [ebp - 0x18]
push 0x10
sub edx, eax
push edx
push eax
push ecx
call dword [0x1013968c]
push eax
call fcn.00407d22
add esp, 0x14
add esi, 3
mov dword [ebp + 0xc], esi
add dword [ebp - 8], 2
jmp 0x4d744b
cmp dword [ebp - 0xc], 0
je 0x4d744b
mov byte [esi], bl
inc esi
mov dword [ebp + 0xc], esi
inc dword [ebp - 8]
mov bl, byte [edi]
test bl, bl
mov edx, dword [ebp - 8]
jne 0x4d7248
cmp dword [ebp - 0xc], 0
je 0x4d746c
cmp edx, 0x823
jae 0x4d746c
mov byte [esi], 0
mov eax, dword [ebp + 0x10]
test eax, eax
pop edi
pop esi
pop ebx
je 0x4d747b
lea ecx, [edx + 1]
mov dword [eax], ecx
inc edx
cmp edx, 0x823
jbe 0x4d7488
and dword [ebp - 0xc], 0
mov eax, dword [ebp - 0xc]
leave
ret