Function at 0x501ff0
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, dword [esp + 8]
push ebp
push esi
mov esi, dword [esp + 0x18]
mov edx, dword [ebx + 0xe8]
push edi
test edx, edx
je 0x502011
mov eax, dword [ebx + 0x84]
sub eax, esi
dec eax
jmp 0x502013
mov eax, esi
mov ebp, dword [ebx + 0xcc]
mov edi, ebp
mov ecx, dword [ebx + 0xd4]
imul edi, eax
mov eax, ecx
imul eax, dword [esp + 0x18]
add edi, eax
add edi, dword [ebx + 0xc8]
test edx, edx
je 0x502039
neg ebp
cmp dword [ebx + 0xe0], 0
jne 0x5023fd
cmp dword [ebx + 0xe4], 0
jne 0x5023fd
mov eax, dword [ebx + 0xd8]
test al, 2
je 0x50208d
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x502421
mov al, byte [ebx + 0xf0]
xor byte [edi + 2], al
mov al, byte [ebx + 0xf4]
xor byte [edi + 1], al
mov al, byte [ebx + 0xf8]
xor byte [edi], al
add edi, ebp
dec ecx
jne 0x502069
jmp 0x502421
test eax, 0x100
je 0x5020cd
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x502421
mov al, byte [ebx + 0xf0]
mov byte [edi + 2], al
mov al, byte [ebx + 0xf4]
mov byte [edi + 1], al
mov al, byte [ebx + 0xf8]
mov byte [edi], al
mov al, byte [ebx + 0xfc]
mov byte [edi + 3], al
add edi, ebp
dec ecx
jne 0x5020a0
jmp 0x502421
test al, 8
je 0x5020f9
cmp ecx, 4
jne 0x502421
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x502421
mov al, byte [ebx + 0xfc]
mov byte [edi + 3], al
add edi, ebp
dec ecx
jne 0x5020e6
jmp 0x502421
test al, 0x10
je 0x5022a8
cmp ecx, 4
jne 0x50224a
mov eax, dword [esp + 0x20]
jmp 0x502239
movzx edx, byte [edi + 3]
mov ecx, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test ecx, ecx
jne 0x50212b
movzx eax, byte [edi + 2]
jmp 0x50216c
test edx, edx
jne 0x50213a
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x502168
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov edx, dword [esp + 0x18]
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x50217f
movzx eax, byte [edi + 1]
jmp 0x5021bc
test edx, edx
jne 0x50218e
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x5021bc
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 1], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x5021ce
movzx eax, byte [edi]
jmp 0x50220e
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x5021e1
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x50220e
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
imul ecx, dword [ebx + 0xfc], 0xff
mov eax, dword [ebx + 0x100]
imul eax, dword [esp + 0x18]
add eax, ecx
mov ecx, 0xff
cdq
idiv ecx
mov byte [edi + 3], al
mov eax, dword [esp + 0x14]
dec eax
add edi, ebp
mov dword [esp + 0x14], eax
test eax, eax
jne 0x502113
jmp 0x502421
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x502421
mov esi, 0xff
movzx eax, byte [edi + 2]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf0]
cdq
idiv esi
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf4]
cdq
idiv esi
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf8]
cdq
idiv esi
mov byte [edi], al
add edi, ebp
dec ecx
jne 0x50225b
jmp 0x502421
test al, 0x20
je 0x5023d4
cmp ecx, 4
jne 0x5023d4
mov eax, dword [esp + 0x20]
jmp 0x5023c6
movzx edx, byte [edi + 3]
mov ecx, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test ecx, ecx
jne 0x5022da
movzx eax, byte [edi + 2]
jmp 0x50231b
test edx, edx
jne 0x5022e9
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x502317
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov edx, dword [esp + 0x18]
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x50232e
movzx eax, byte [edi + 1]
jmp 0x50236b
test edx, edx
jne 0x50233d
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x50236b
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 1], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x50237d
movzx eax, byte [edi]
jmp 0x5023bd
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x502390
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x5023bd
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
mov eax, dword [esp + 0x14]
dec eax
add edi, ebp
mov dword [esp + 0x14], eax
test eax, eax
jne 0x5022c2
jmp 0x502421
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x502421
mov al, byte [ebx + 0xf0]
mov byte [edi + 2], al
mov al, byte [ebx + 0xf4]
mov byte [edi + 1], al
mov al, byte [ebx + 0xf8]
mov byte [edi], al
add edi, ebp
dec ecx
jne 0x5023dc
jmp 0x502421
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x502421
push edi
push esi
push dword [esp + 0x20]
push ebx
call fcn.00501b22
add esp, 0x10
add edi, ebp
inc esi
dec dword [esp + 0x14]
jne 0x502409
pop edi
pop esi
pop ebp
pop ebx
ret