Function at 0x479a05
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
mov eax, dword [0x505bc8]
push ebx
push esi
xor esi, esi
mov cl, byte [eax]
mov dword [ebp - 8], esi
mov dword [ebp - 4], esi
mov dword [ebp - 0x18], esi
mov dword [ebp - 0x14], esi
push edi
lea edi, [eax + 1]
mov dword [0x505bc8], edi
cmp cl, 0x41
jg 0x479bae
je 0x47a021
test cl, cl
je 0x479b94
cmp cl, 0x2f
jle case.default.0x479f17
cmp cl, 0x31
jle 0x479abc
cmp cl, 0x39
jg case.default.0x479f17
movsx eax, byte [edi - 1]
lea eax, [eax*8 + 0x4dd730]
push eax
lea ecx, [ebp - 8]
call fcn.0047692a
cmp dword [ebp - 8], 0
je 0x479aa9
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], str.operator
push eax
lea ecx, [ebp - 0x28]
mov dword [ebp - 0x1c], 8
call fcn.004766f0
lea ecx, [ebp - 8]
push ecx
lea ecx, [ebp - 0x20]
push ecx
mov ecx, eax
call fcn.00476a54
mov eax, dword [ebp - 0x20]
mov dword [ebp - 8], eax
mov eax, dword [ebp - 0x1c]
mov dword [ebp - 4], eax
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 8]
mov dword [eax], ecx
mov ecx, dword [ebp - 4]
mov dword [eax + 4], ecx
pop edi
pop esi
pop ebx
leave
ret
mov ebx, esi
mov dword [ebp - 0xc], esi
mov dword [ebp - 0x10], ebx
cmp byte [ebp + 0xc], bl
je 0x479b35
lea eax, [ebp - 0x20]
push eax
call fcn.0047adc3
push eax
lea eax, [ebp - 0x18]
push 0x3c
push eax
call fcn.004769e5
add esp, 0x10
lea ecx, [ebp - 0x10]
push eax
call fcn.00476b12
lea ecx, [ebp - 0x10]
call fcn.00479808
cmp al, 0x3e
jne 0x479b00
push 0x20
lea ecx, [ebp - 0x10]
call fcn.00476b69
push 0x3e
lea ecx, [ebp - 0x10]
call fcn.00476b69
mov eax, dword [ebp + 0x10]
test eax, eax
je 0x479b14
mov byte [eax], 1
mov edi, dword [0x505bc8]
cmp byte [edi], bl
jne 0x479b2b
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x10]
mov dword [eax], ecx
mov ecx, dword [ebp - 0xc]
jmp 0x479ab4
mov ebx, dword [ebp - 0x10]
inc edi
mov dword [0x505bc8], edi
push esi
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.0047bbc7
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], eax
mov dword [0x505bc8], edi
test ecx, ecx
je 0x479b7b
cmp byte [edi - 1], 0x31
jne 0x479b7b
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x20]
push 0x7e
push eax
call fcn.004769e5
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], eax
test ebx, ebx
je 0x479aa9
lea eax, [ebp - 0x10]
push eax
lea ecx, [ebp - 8]
call fcn.00476b12
jmp 0x479aa9
lea eax, [edi - 1]
mov dword [0x505bc8], eax
mov ecx, dword [ebp + 8]
push 1
call fcn.0047675e
mov eax, dword [ebp + 8]
jmp 0x479ab7
cmp cl, 0x42
je 0x47a01e
jle case.default.0x479f17
cmp cl, 0x5a
jle 0x47a021
cmp cl, 0x5f
jne case.default.0x479f17
movsx eax, byte [edi]
lea ecx, [edi + 1]
mov dword [0x505bc8], ecx
cmp eax, 0x4f
jg 0x479cf1
cmp eax, 0x44
jge 0x479fed
cmp eax, 0x39
jg 0x479c6d
je 0x479c40
test eax, eax
je 0x479c35
cmp eax, 0x2f
jle case.default.0x479f17
cmp eax, 0x36
jle 0x479c25
cmp eax, 0x38
jg case.default.0x479f17
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x4dd850]
mov ecx, dword [ebp + 8]
push eax
call fcn.004766f0
jmp 0x479ba6
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x4dd850]
jmp 0x479a65
mov dword [0x505bc8], edi
jmp 0x479b9c
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x4dd850]
push eax
call fcn.004766f0
mov edx, dword [ebp - 0x14]
or edx, 0x8000
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x18]
mov dword [eax], ecx
mov dword [eax + 4], edx
jmp 0x479ab7
cmp eax, 0x3f
je 0x479c9e
cmp eax, 0x40
jle case.default.0x479f17
cmp eax, 0x42
jle 0x479fed
push 1
lea eax, [ebp - 0x18]
push esi
push eax
call fcn.0047ac99
mov edx, dword [ebp - 0x14]
add esp, 0xc
or edx, 0x1000
jmp 0x479c5d
mov dl, byte [ecx]
lea eax, [ecx + 1]
mov dword [0x505bc8], eax
test dl, dl
je 0x479ce6
mov edi, dword [ebp + 8]
cmp dl, 0x30
je 0x479cbf
mov dword [edi + 4], esi
mov byte [edi + 4], 2
mov dword [edi], esi
jmp 0x479cdf
push esi
lea eax, [ebp - 0x18]
push 1
push eax
call fcn.0047ac99
mov ecx, dword [ebp - 0x14]
add esp, 0xc
mov eax, dword [ebp - 0x18]
or ecx, 0x1000
mov dword [edi], eax
mov dword [edi + 4], ecx
mov eax, edi
jmp 0x479ab7
mov dword [0x505bc8], ecx
jmp 0x479b9c
cmp eax, 0x54
jg 0x479ed6
cmp eax, 0x53
jge 0x479fed
sub eax, 0x50
je 0x479e86
sub eax, 1
je 0x479a6e
sub eax, 1
jne case.default.0x479f17
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x4dd818]
push eax
call fcn.0047692a
mov eax, dword [0x505bc8]
mov al, byte [eax]
test al, al
jne 0x479d4f
push 1
push dword [ebp + 8]
lea ecx, [ebp - 8]
call fcn.00476a98
jmp 0x479ba6
movsx eax, al
sub eax, 0x30
js case.default.0x479f17
cmp eax, 5
jae case.default.0x479f17
lea eax, [eax*8 + 0x4ddb58]
push eax
lea ecx, [ebp - 0x18]
call fcn.0047692a
mov eax, dword [0x505bc8]
mov cl, byte [eax]
inc eax
mov dword [0x505bc8], eax
cmp cl, 0x30
je 0x479e4c
cmp cl, 0x31
je 0x479da0
jle 0x479d9a
cmp cl, 0x34
jle 0x479ec2
dec eax
jmp 0x479b97
mov eax, dword [ebp - 8]
lea ecx, [ebp - 0x10]
mov dword [ebp - 0x10], eax
mov eax, dword [ebp - 4]
mov dword [ebp - 0xc], eax
lea eax, [ebp - 0x18]
push eax
call fcn.00476b12
lea eax, [ebp - 0x20]
push eax
call fcn.0047ab00
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.00476a76
push eax
lea ecx, [ebp - 0x10]
call fcn.00476b12
lea eax, [ebp - 0x20]
push eax
call fcn.0047ab00
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.00476a76
push eax
lea ecx, [ebp - 0x10]
call fcn.00476b12
lea eax, [ebp - 0x20]
push eax
call fcn.0047ab00
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.00476a76
push eax
lea ecx, [ebp - 0x10]
call fcn.00476b12
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.00478e16
pop ecx
pop ecx
push 0x29
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.00476a76
push eax
lea ecx, [ebp - 0x10]
call fcn.00476b12
push 0x27
push dword [ebp + 8]
lea ecx, [ebp - 0x10]
call fcn.00476a76
jmp 0x479ba6
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.00478ad5
mov eax, dword [ebp - 0x20]
pop ecx
pop ecx
mov dword [ebp - 0x10], eax
lea ecx, [ebp - 0x10]
mov eax, dword [ebp - 0x1c]
push 0x20
mov dword [ebp - 0xc], eax
call fcn.00476b69
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x28]
push eax
lea ecx, [ebp - 0x10]
call fcn.00476a54
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
jmp 0x479ec9
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x4dd818]
push eax
call fcn.0047692a
push esi
lea eax, [ebp - 0x28]
push esi
push eax
call fcn.00479a05
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 0x18], ecx
mov dword [ebp - 0x14], eax
test ecx, ecx
je 0x479ec2
test eax, 0x400
jne case.default.0x479f17
lea eax, [ebp - 0x18]
push eax
lea ecx, [ebp - 8]
push dword [ebp + 8]
call fcn.00476a54
jmp 0x479ba6
cmp eax, 0x56
jle 0x479ffd
cmp eax, 0x57
jle case.default.0x479f17
cmp eax, 0x59
jle 0x479fed
cmp eax, 0x5f
jne case.default.0x479f17
movsx eax, byte [ecx]
inc ecx
sub eax, 0x41
mov dword [0x505bc8], ecx
cmp eax, 0xc
ja case.default.0x479f17
movzx eax, byte [eax + 0x47a061]
jmp dword [eax*4 + 0x47a055]
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x4dd8e0]
jmp 0x479c1a
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x4dd8e0]
push eax
call fcn.004766f0
mov eax, dword [0x505bc8]
cmp byte [eax], 0x3f
lea eax, [ebp - 0x28]
push eax
jne 0x479f71
call fcn.00478bac
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.00476b12
mov eax, dword [0x505bc8]
cmp byte [eax], 0x40
jne 0x479f80
inc eax
mov dword [0x505bc8], eax
jmp 0x479f80
call fcn.0047ad7b
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.00476b12
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], 0x4de274
push eax
lea ecx, [ebp - 0x18]
mov dword [ebp - 0x1c], 2
call fcn.00476aba
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x18]
mov dword [eax], ecx
mov ecx, dword [ebp - 0x14]
jmp 0x479ab4
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x4dd8e0]
push eax
call fcn.004766f0
jmp 0x479fd4
cmp al, 0x40
je 0x479fe4
inc ecx
mov dword [0x505bc8], ecx
lea ecx, [ebp - 0x18]
push eax
call fcn.00476b69
mov ecx, dword [0x505bc8]
mov al, byte [ecx]
test al, al
jne 0x479fc0
cmp al, 0x40
jne 0x479f9a
inc ecx
mov dword [0x505bc8], ecx
jmp 0x479f9a
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x4dd818]
jmp 0x479c1a
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x4dd818]
jmp 0x479a65
mov eax, dword [ebp + 8]
mov dword [eax + 4], esi
mov byte [eax + 4], 2
mov dword [eax], esi
jmp 0x479ab7
xor esi, esi
inc esi
movsx eax, byte [edi - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x4dd6f8]
push eax
call fcn.0047692a
test esi, esi
je 0x479a6e
cmp dword [ebp - 8], 0
je 0x479aa9
or dword [ebp - 4], 0x200
jmp 0x479aa9