Function at 0x54838a
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
mov eax, dword [0x62b590]
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 [0x62b590], edi
cmp cl, 0x41
jg 0x548533
je 0x5489a6
test cl, cl
je 0x548519
cmp cl, 0x2f
jle case.default.0x54889c
cmp cl, 0x31
jle 0x548441
cmp cl, 0x39
jg case.default.0x54889c
movsx eax, byte [edi - 1]
lea eax, [eax*8 + 0x5e2698]
push eax
lea ecx, [ebp - 8]
call fcn.005452af
cmp dword [ebp - 8], 0
je 0x54842e
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], str.operator
push eax
lea ecx, [ebp - 0x28]
mov dword [ebp - 0x1c], 8
call fcn.00545075
lea ecx, [ebp - 8]
push ecx
lea ecx, [ebp - 0x20]
push ecx
mov ecx, eax
call fcn.005453d9
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 0x5484ba
lea eax, [ebp - 0x20]
push eax
call fcn.00549748
push eax
lea eax, [ebp - 0x18]
push 0x3c
push eax
call fcn.0054536a
add esp, 0x10
lea ecx, [ebp - 0x10]
push eax
call fcn.00545497
lea ecx, [ebp - 0x10]
call fcn.0054818d
cmp al, 0x3e
jne 0x548485
push 0x20
lea ecx, [ebp - 0x10]
call fcn.005454ee
push 0x3e
lea ecx, [ebp - 0x10]
call fcn.005454ee
mov eax, dword [ebp + 0x10]
test eax, eax
je 0x548499
mov byte [eax], 1
mov edi, dword [0x62b590]
cmp byte [edi], bl
jne 0x5484b0
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x10]
mov dword [eax], ecx
mov ecx, dword [ebp - 0xc]
jmp 0x548439
mov ebx, dword [ebp - 0x10]
inc edi
mov dword [0x62b590], edi
push esi
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.0054a54c
add esp, 0xc
mov ecx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 8], ecx
mov dword [ebp - 4], eax
mov dword [0x62b590], edi
test ecx, ecx
je 0x548500
cmp byte [edi - 1], 0x31
jne 0x548500
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x20]
push 0x7e
push eax
call fcn.0054536a
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 0x54842e
lea eax, [ebp - 0x10]
push eax
lea ecx, [ebp - 8]
call fcn.00545497
jmp 0x54842e
lea eax, [edi - 1]
mov dword [0x62b590], eax
mov ecx, dword [ebp + 8]
push 1
call fcn.005450e3
mov eax, dword [ebp + 8]
jmp 0x54843c
cmp cl, 0x42
je 0x5489a3
jle case.default.0x54889c
cmp cl, 0x5a
jle 0x5489a6
cmp cl, 0x5f
jne case.default.0x54889c
movsx eax, byte [edi]
lea ecx, [edi + 1]
mov dword [0x62b590], ecx
cmp eax, 0x4f
jg 0x548676
cmp eax, 0x44
jge 0x548972
cmp eax, 0x39
jg 0x5485f2
je 0x5485c5
test eax, eax
je 0x5485ba
cmp eax, 0x2f
jle case.default.0x54889c
cmp eax, 0x36
jle 0x5485aa
cmp eax, 0x38
jg case.default.0x54889c
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5e27b8]
mov ecx, dword [ebp + 8]
push eax
call fcn.00545075
jmp 0x54852b
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5e27b8]
jmp 0x5483ea
mov dword [0x62b590], edi
jmp 0x548521
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x5e27b8]
push eax
call fcn.00545075
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 0x54843c
cmp eax, 0x3f
je 0x548623
cmp eax, 0x40
jle case.default.0x54889c
cmp eax, 0x42
jle 0x548972
push 1
lea eax, [ebp - 0x18]
push esi
push eax
call fcn.0054961e
mov edx, dword [ebp - 0x14]
add esp, 0xc
or edx, 0x1000
jmp 0x5485e2
mov dl, byte [ecx]
lea eax, [ecx + 1]
mov dword [0x62b590], eax
test dl, dl
je 0x54866b
mov edi, dword [ebp + 8]
cmp dl, 0x30
je 0x548644
mov dword [edi + 4], esi
mov byte [edi + 4], 2
mov dword [edi], esi
jmp 0x548664
push esi
lea eax, [ebp - 0x18]
push 1
push eax
call fcn.0054961e
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 0x54843c
mov dword [0x62b590], ecx
jmp 0x548521
cmp eax, 0x54
jg 0x54885b
cmp eax, 0x53
jge 0x548972
sub eax, 0x50
je 0x54880b
sub eax, 1
je 0x5483f3
sub eax, 1
jne case.default.0x54889c
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x5e2780]
push eax
call fcn.005452af
mov eax, dword [0x62b590]
mov al, byte [eax]
test al, al
jne 0x5486d4
push 1
push dword [ebp + 8]
lea ecx, [ebp - 8]
call fcn.0054541d
jmp 0x54852b
movsx eax, al
sub eax, 0x30
js case.default.0x54889c
cmp eax, 5
jae case.default.0x54889c
lea eax, [eax*8 + 0x5e2ac0]
push eax
lea ecx, [ebp - 0x18]
call fcn.005452af
mov eax, dword [0x62b590]
mov cl, byte [eax]
inc eax
mov dword [0x62b590], eax
cmp cl, 0x30
je 0x5487d1
cmp cl, 0x31
je 0x548725
jle 0x54871f
cmp cl, 0x34
jle 0x548847
dec eax
jmp 0x54851c
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.00545497
lea eax, [ebp - 0x20]
push eax
call fcn.00549485
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.005453fb
push eax
lea ecx, [ebp - 0x10]
call fcn.00545497
lea eax, [ebp - 0x20]
push eax
call fcn.00549485
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.005453fb
push eax
lea ecx, [ebp - 0x10]
call fcn.00545497
lea eax, [ebp - 0x20]
push eax
call fcn.00549485
pop ecx
push 0x2c
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.005453fb
push eax
lea ecx, [ebp - 0x10]
call fcn.00545497
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.0054779b
pop ecx
pop ecx
push 0x29
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
call fcn.005453fb
push eax
lea ecx, [ebp - 0x10]
call fcn.00545497
push 0x27
push dword [ebp + 8]
lea ecx, [ebp - 0x10]
call fcn.005453fb
jmp 0x54852b
lea eax, [ebp - 0x20]
push esi
push eax
call fcn.0054745a
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.005454ee
lea eax, [ebp - 8]
push eax
lea eax, [ebp - 0x28]
push eax
lea ecx, [ebp - 0x10]
call fcn.005453d9
lea ecx, [ebp - 0x18]
push ecx
mov ecx, eax
jmp 0x54884e
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x5e2780]
push eax
call fcn.005452af
push esi
lea eax, [ebp - 0x28]
push esi
push eax
call fcn.0054838a
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 0x548847
test eax, 0x400
jne case.default.0x54889c
lea eax, [ebp - 0x18]
push eax
lea ecx, [ebp - 8]
push dword [ebp + 8]
call fcn.005453d9
jmp 0x54852b
cmp eax, 0x56
jle 0x548982
cmp eax, 0x57
jle case.default.0x54889c
cmp eax, 0x59
jle 0x548972
cmp eax, 0x5f
jne case.default.0x54889c
movsx eax, byte [ecx]
inc ecx
sub eax, 0x41
mov dword [0x62b590], ecx
cmp eax, 0xc
ja case.default.0x54889c
movzx eax, byte [eax + 0x5489e6]
jmp dword [eax*4 + 0x5489da]
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5e2848]
jmp 0x54859f
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x5e2848]
push eax
call fcn.00545075
mov eax, dword [0x62b590]
cmp byte [eax], 0x3f
lea eax, [ebp - 0x28]
push eax
jne 0x5488f6
call fcn.00547531
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.00545497
mov eax, dword [0x62b590]
cmp byte [eax], 0x40
jne 0x548905
inc eax
mov dword [0x62b590], eax
jmp 0x548905
call fcn.00549700
pop ecx
push eax
lea ecx, [ebp - 0x18]
call fcn.00545497
lea eax, [ebp - 0x20]
mov dword [ebp - 0x20], 0x5e3174
push eax
lea ecx, [ebp - 0x18]
mov dword [ebp - 0x1c], 2
call fcn.0054543f
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x18]
mov dword [eax], ecx
mov ecx, dword [ebp - 0x14]
jmp 0x548439
movsx eax, byte [ecx - 1]
lea ecx, [ebp - 0x18]
lea eax, [eax*8 + 0x5e2848]
push eax
call fcn.00545075
jmp 0x548959
cmp al, 0x40
je 0x548969
inc ecx
mov dword [0x62b590], ecx
lea ecx, [ebp - 0x18]
push eax
call fcn.005454ee
mov ecx, dword [0x62b590]
mov al, byte [ecx]
test al, al
jne 0x548945
cmp al, 0x40
jne 0x54891f
inc ecx
mov dword [0x62b590], ecx
jmp 0x54891f
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5e2780]
jmp 0x54859f
movsx eax, byte [ecx - 1]
lea eax, [eax*8 + 0x5e2780]
jmp 0x5483ea
mov eax, dword [ebp + 8]
mov dword [eax + 4], esi
mov byte [eax + 4], 2
mov dword [eax], esi
jmp 0x54843c
xor esi, esi
inc esi
movsx eax, byte [edi - 1]
lea ecx, [ebp - 8]
lea eax, [eax*8 + 0x5e2660]
push eax
call fcn.005452af
test esi, esi
je 0x5483f3
cmp dword [ebp - 8], 0
je 0x54842e
or dword [ebp - 4], 0x200
jmp 0x54842e