Function at 0x6553aa
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
mov eax, dword [0x7f8ac8]
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 [0x7f8ac8], edi
cmp cl, 0x41
jg 0x655553
je 0x6559c6
test cl, cl
je 0x655539
cmp cl, 0x2f
jle case.default.0x6558bc
cmp cl, 0x31
jle 0x655461
cmp cl, 0x39
jg case.default.0x6558bc
movsx eax, byte [edi - 1]
lea eax, [eax*8 + 0x75f498]
push eax
lea ecx, [ebp - 8]
call fcn.006522bf
cmp dword [ebp - 8], 0
je 0x65544e
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], str.operator
push eax
lea ecx, [ebp - 0x28]
mov dword [ebp - 0x1c], 8
call fcn.00652085
lea ecx, [ebp - 8]
push ecx
lea ecx, [ebp - 0x20]
push ecx
mov ecx, eax
call fcn.006523e9
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 0x6554da
lea eax, [ebp - 0x20]
push eax
call fcn.00656795
push eax
lea eax, [ebp - 0x18]
push 0x3c
push eax
call fcn.0065237a
add esp, 0x10
lea ecx, [ebp - 0x10]
push eax
call fcn.006524a7
lea ecx, [ebp - 0x10]
call fcn.0065519d
cmp al, 0x3e
jne 0x6554a5
push 0x20
lea ecx, [ebp - 0x10]
call fcn.006524fe
push 0x3e
lea ecx, [ebp - 0x10]
call fcn.006524fe
mov eax, dword [ebp + 0x10]
test eax, eax
je 0x6554b9
mov byte [eax], 1
mov edi, dword [0x7f8ac8]
cmp byte [edi], bl
jne 0x6554d0
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x10]
mov dword [eax], ecx
mov ecx, dword [ebp - 0xc]
jmp 0x655459
mov ebx, dword [ebp - 0x10]
inc edi
mov dword [0x7f8ac8], edi
push esi
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.00657599
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], eax
mov dword [0x7f8ac8], edi
test ecx, ecx
je 0x655520
cmp byte [edi - 1], 0x31
jne 0x655520
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x20]
push 0x7e
push eax
call fcn.0065237a
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 0x65544e
lea eax, [ebp - 0x10]
push eax
lea ecx, [ebp - 8]
call fcn.006524a7
jmp 0x65544e
lea eax, [edi - 1]
mov dword [0x7f8ac8], eax
mov ecx, dword [ebp + 8]
push 1
call fcn.006520f3
mov eax, dword [ebp + 8]
jmp 0x65545c
cmp cl, 0x42
je 0x6559c3
jle case.default.0x6558bc
cmp cl, 0x5a
jle 0x6559c6
cmp cl, 0x5f
jne case.default.0x6558bc
movsx eax, byte [edi]
lea ecx, [edi + 1]
mov dword [0x7f8ac8], ecx
cmp eax, 0x4f
jg 0x655696
cmp eax, 0x44
jge 0x655992
cmp eax, 0x39
jg 0x655612
je 0x6555e5
test eax, eax
je 0x6555da
cmp eax, 0x2f
jle case.default.0x6558bc
cmp eax, 0x36
jle 0x6555ca
cmp eax, 0x38
jg case.default.0x6558bc
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x75f5b8]
mov ecx, dword [ebp + 8]
push eax
call fcn.00652085
jmp 0x65554b
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x75f5b8]
jmp 0x65540a
mov dword [0x7f8ac8], edi
jmp 0x655541
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x75f5b8]
push eax
call fcn.00652085
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 0x65545c
cmp eax, 0x3f
je 0x655643
cmp eax, 0x40
jle case.default.0x6558bc
cmp eax, 0x42
jle 0x655992
push 1
lea eax, [ebp - 0x18]
push esi
push eax
call fcn.0065666b
mov edx, dword [ebp - 0x14]
add esp, 0xc
or edx, 0x1000
jmp 0x655602
mov dl, byte [ecx]
lea eax, [ecx + 1]
mov dword [0x7f8ac8], eax
test dl, dl
je 0x65568b
mov edi, dword [ebp + 8]
cmp dl, 0x30
je 0x655664
mov dword [edi + 4], esi
mov byte [edi + 4], 2
mov dword [edi], esi
jmp 0x655684
push esi
lea eax, [ebp - 0x18]
push 1
push eax
call fcn.0065666b
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 0x65545c
mov dword [0x7f8ac8], ecx
jmp 0x655541
cmp eax, 0x54
jg 0x65587b
cmp eax, 0x53
jge 0x655992
sub eax, 0x50
je 0x65582b
sub eax, 1
je 0x655413
sub eax, 1
jne case.default.0x6558bc
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x75f580]
push eax
call fcn.006522bf
mov eax, dword [0x7f8ac8]
mov al, byte [eax]
test al, al
jne 0x6556f4
push 1
push dword [ebp + 8]
lea ecx, [ebp - 8]
call fcn.0065242d
jmp 0x65554b
movsx eax, al
sub eax, 0x30
js case.default.0x6558bc
cmp eax, 5
jae case.default.0x6558bc
lea eax, [eax*8 + 0x75f8c0]
push eax
lea ecx, [ebp - 0x18]
call fcn.006522bf
mov eax, dword [0x7f8ac8]
mov cl, byte [eax]
inc eax
mov dword [0x7f8ac8], eax
cmp cl, 0x30
je 0x6557f1
cmp cl, 0x31
je 0x655745
jle 0x65573f
cmp cl, 0x34
jle 0x655867
dec eax
jmp 0x65553c
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.006524a7
lea eax, [ebp - 0x20]
push eax
call fcn.006564a5
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.0065240b
push eax
lea ecx, [ebp - 0x10]
call fcn.006524a7
lea eax, [ebp - 0x20]
push eax
call fcn.006564a5
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.0065240b
push eax
lea ecx, [ebp - 0x10]
call fcn.006524a7
lea eax, [ebp - 0x20]
push eax
call fcn.006564a5
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.0065240b
push eax
lea ecx, [ebp - 0x10]
call fcn.006524a7
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.006547ab
pop ecx
pop ecx
push 0x29
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.0065240b
push eax
lea ecx, [ebp - 0x10]
call fcn.006524a7
push 0x27
push dword [ebp + 8]
lea ecx, [ebp - 0x10]
call fcn.0065240b
jmp 0x65554b
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.0065446a
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.006524fe
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x28]
push eax
lea ecx, [ebp - 0x10]
call fcn.006523e9
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
jmp 0x65586e
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x75f580]
push eax
call fcn.006522bf
push esi
lea eax, [ebp - 0x28]
push esi
push eax
call fcn.006553aa
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 0x655867
test eax, 0x400
jne case.default.0x6558bc
lea eax, [ebp - 0x18]
push eax
lea ecx, [ebp - 8]
push dword [ebp + 8]
call fcn.006523e9
jmp 0x65554b
cmp eax, 0x56
jle 0x6559a2
cmp eax, 0x57
jle case.default.0x6558bc
cmp eax, 0x59
jle 0x655992
cmp eax, 0x5f
jne case.default.0x6558bc
movsx eax, byte [ecx]
inc ecx
sub eax, 0x41
mov dword [0x7f8ac8], ecx
cmp eax, 0xc
ja case.default.0x6558bc
movzx eax, byte [eax + 0x655a06]
jmp dword [eax*4 + 0x6559fa]
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x75f648]
jmp 0x6555bf
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x75f648]
push eax
call fcn.00652085
mov eax, dword [0x7f8ac8]
cmp byte [eax], 0x3f
lea eax, [ebp - 0x28]
push eax
jne 0x655916
call fcn.00654541
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.006524a7
mov eax, dword [0x7f8ac8]
cmp byte [eax], 0x40
jne 0x655925
inc eax
mov dword [0x7f8ac8], eax
jmp 0x655925
call fcn.0065674d
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.006524a7
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], 0x75ff78
push eax
lea ecx, [ebp - 0x18]
mov dword [ebp - 0x1c], 2
call fcn.0065244f
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x18]
mov dword [eax], ecx
mov ecx, dword [ebp - 0x14]
jmp 0x655459
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x75f648]
push eax
call fcn.00652085
jmp 0x655979
cmp al, 0x40
je 0x655989
inc ecx
mov dword [0x7f8ac8], ecx
lea ecx, [ebp - 0x18]
push eax
call fcn.006524fe
mov ecx, dword [0x7f8ac8]
mov al, byte [ecx]
test al, al
jne 0x655965
cmp al, 0x40
jne 0x65593f
inc ecx
mov dword [0x7f8ac8], ecx
jmp 0x65593f
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x75f580]
jmp 0x6555bf
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x75f580]
jmp 0x65540a
mov eax, dword [ebp + 8]
mov dword [eax + 4], esi
mov byte [eax + 4], 2
mov dword [eax], esi
jmp 0x65545c
xor esi, esi
inc esi
movsx eax, byte [edi - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x75f460]
push eax
call fcn.006522bf
test esi, esi
je 0x655413
cmp dword [ebp - 8], 0
je 0x65544e
or dword [ebp - 4], 0x200
jmp 0x65544e