Function at 0x54c540
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 0x54c561
mov eax, dword [ebx + 0x84]
sub eax, esi
dec eax
jmp 0x54c563
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 0x54c589
neg ebp
cmp dword [ebx + 0xe0], 0
jne 0x54c94d
cmp dword [ebx + 0xe4], 0
jne 0x54c94d
mov eax, dword [ebx + 0xd8]
test al, 2
je 0x54c5dd
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x54c971
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 0x54c5b9
jmp 0x54c971
test eax, 0x100
je 0x54c61d
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x54c971
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 0x54c5f0
jmp 0x54c971
test al, 8
je 0x54c649
cmp ecx, 4
jne 0x54c971
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x54c971
mov al, byte [ebx + 0xfc]
mov byte [edi + 3], al
add edi, ebp
dec ecx
jne 0x54c636
jmp 0x54c971
test al, 0x10
je 0x54c7f8
cmp ecx, 4
jne 0x54c79a
mov eax, dword [esp + 0x20]
jmp 0x54c789
movzx edx, byte [edi + 3]
mov ecx, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test ecx, ecx
jne 0x54c67b
movzx eax, byte [edi + 2]
jmp 0x54c6bc
test edx, edx
jne 0x54c68a
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x54c6b8
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 0x54c6cf
movzx eax, byte [edi + 1]
jmp 0x54c70c
test edx, edx
jne 0x54c6de
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x54c70c
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 0x54c71e
movzx eax, byte [edi]
jmp 0x54c75e
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x54c731
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x54c75e
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 0x54c663
jmp 0x54c971
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x54c971
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 0x54c7ab
jmp 0x54c971
test al, 0x20
je 0x54c924
cmp ecx, 4
jne 0x54c924
mov eax, dword [esp + 0x20]
jmp 0x54c916
movzx edx, byte [edi + 3]
mov ecx, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test ecx, ecx
jne 0x54c82a
movzx eax, byte [edi + 2]
jmp 0x54c86b
test edx, edx
jne 0x54c839
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x54c867
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 0x54c87e
movzx eax, byte [edi + 1]
jmp 0x54c8bb
test edx, edx
jne 0x54c88d
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x54c8bb
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 0x54c8cd
movzx eax, byte [edi]
jmp 0x54c90d
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x54c8e0
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x54c90d
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 0x54c812
jmp 0x54c971
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x54c971
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 0x54c92c
jmp 0x54c971
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x54c971
push edi
push esi
push dword [esp + 0x20]
push ebx
call fcn.0054c072
add esp, 0x10
add edi, ebp
inc esi
dec dword [esp + 0x14]
jne 0x54c959
pop edi
pop esi
pop ebp
pop ebx
ret