Function at 0x4012d0
Capabilities:
Encode data using xor

Disassembly:
push ebp
push esp
pop ebp
cmp dword [0x458874], 0
je 0x4012eb
call fcn.004010c0
mov dword [0x458874], 0
mov eax, dword [ebp + 8]
mov ecx, dword [ebp + 0xc]
push ebx
push esi
sub edx, edx
mov dword [eax + 0x200], 0xe
add ecx, 2
push edi
movzx esi, byte [ecx - 2]
movzx edi, byte [ecx - 1]
shl esi, 8
or esi, edi
movzx edi, byte [ecx]
shl esi, 8
or esi, edi
movzx edi, byte [ecx + 1]
shl esi, 8
or esi, edi
mov dword [eax + edx*4], esi
inc edx
add ecx, 4
cmp edx, 8
jl 0x401303
mov ebx, 0x45b820
mov esi, dword [eax + 0x1c]
push esi
pop ecx
shr ecx, 0x10
movzx edx, cl
mov ecx, dword [edx*4 + 0x45ac20]
shl ecx, 8
mov edi, dword [eax + 0xc]
push esi
pop edx
shr edx, 8
movzx edx, dl
xor ecx, dword [edx*4 + 0x45ac20]
movzx edx, byte [eax + 0x1c]
shl ecx, 8
xor ecx, dword [edx*4 + 0x45ac20]
push esi
pop edx
shl ecx, 8
shr edx, 0x18
xor ecx, dword [edx*4 + 0x45ac20]
mov edx, dword [eax + 4]
xor ecx, dword [eax]
add ebx, 4
xor ecx, dword [ebx - 4]
add eax, 0x20
xor edx, ecx
mov dword [eax], ecx
mov ecx, dword [eax - 0x18]
xor ecx, edx
xor edi, ecx
mov dword [eax + 4], edx
mov dword [eax + 8], ecx
mov dword [eax + 0xc], edi
mov ecx, edi
shr ecx, 0x18
mov ecx, dword [ecx*4 + 0x45ac20]
shl ecx, 8
mov edx, edi
shr edx, 0x10
movzx edx, dl
xor ecx, dword [edx*4 + 0x45ac20]
push edi
pop edx
shr edx, 8
shl ecx, 8
movzx edx, dl
xor ecx, dword [edx*4 + 0x45ac20]
movzx edx, byte [eax + 0xc]
shl ecx, 8
xor ecx, dword [edx*4 + 0x45ac20]
mov edx, dword [eax - 0xc]
xor ecx, dword [eax - 0x10]
xor edx, ecx
mov dword [eax + 0x10], ecx
mov ecx, dword [eax - 8]
xor ecx, edx
xor esi, ecx
mov dword [eax + 0x14], edx
mov dword [eax + 0x18], ecx
mov dword [eax + 0x1c], esi
cmp ebx, 0x45b83c
jl 0x401332
cmp dword [0x45893c], 0
je 0x401512
sub ecx, ecx
lea esp, [esp]
mov edx, dword [ecx + 0x45ac20]
add edx, edx
mov esi, dword [edx + edx + 0x45c860]
add edx, edx
mov dword [ecx + 0x45c060], esi
mov esi, dword [edx + 0x45c460]
mov dword [ecx + 0x45bc60], esi
mov esi, dword [edx + 0x45b420]
mov edx, dword [edx + 0x45b020]
mov dword [ecx + 0x45e060], edx
mov edx, dword [ecx + 0x45ac24]
add edx, edx
add edx, edx
mov dword [ecx + 0x45b860], esi
mov esi, dword [edx + 0x45c860]
mov dword [ecx + 0x45c064], esi
mov esi, dword [edx + 0x45c460]
mov dword [ecx + 0x45bc64], esi
mov esi, dword [edx + 0x45b420]
mov edx, dword [edx + 0x45b020]
mov dword [ecx + 0x45e064], edx
mov edx, dword [ecx + 0x45ac28]
add edx, edx
add edx, edx
mov dword [ecx + 0x45b864], esi
mov esi, dword [edx + 0x45c860]
mov dword [ecx + 0x45c068], esi
mov esi, dword [edx + 0x45c460]
mov dword [ecx + 0x45bc68], esi
mov esi, dword [edx + 0x45b420]
mov edx, dword [edx + 0x45b020]
mov dword [ecx + 0x45e068], edx
mov edx, dword [ecx + 0x45ac2c]
add edx, edx
add edx, edx
mov dword [ecx + 0x45b868], esi
mov esi, dword [edx + 0x45c860]
mov dword [ecx + 0x45c06c], esi
mov esi, dword [edx + 0x45c460]
mov dword [ecx + 0x45bc6c], esi
mov esi, dword [edx + 0x45b420]
mov edx, dword [edx + 0x45b020]
mov dword [ecx + 0x45b86c], esi
mov dword [ecx + 0x45e06c], edx
add ecx, 0x10
cmp ecx, 0x400
jl 0x401410
mov dword [0x45893c], 0
mov esi, dword [eax]
mov edx, dword [ebp + 8]
mov dword [edx + 0x100], esi
mov esi, dword [eax + 4]
lea ecx, [edx + 0x100]
mov dword [ecx + 4], esi
mov esi, dword [eax + 8]
mov dword [ecx + 8], esi
mov esi, dword [eax + 0xc]
mov dword [ecx + 0xc], esi
pushfd
xor edi, edi
inc edi
popfd
add ecx, 0x10
add eax, 0x10
cmp dword [edx + 0x200], edi
jle 0x401651
lea esp, [esp]
mov esi, dword [eax - 0x20]
push esi
pop ebx
shr ebx, 0x10
movzx ebx, bl
push esi
pop edx
shr edx, 0x18
mov edx, dword [edx*4 + 0x45c060]
xor edx, dword [ebx*4 + 0x45bc60]
mov ebx, esi
shr ebx, 8
movzx esi, bl
xor edx, dword [esi*4 + 0x45b860]
movzx esi, byte [eax - 0x20]
xor edx, dword [esi*4 + 0x45e060]
inc edi
mov dword [ecx], edx
mov esi, dword [eax - 0x1c]
mov ebx, esi
shr ebx, 0x10
movzx ebx, bl
mov edx, esi
shr edx, 0x18
mov edx, dword [edx*4 + 0x45c060]
xor edx, dword [ebx*4 + 0x45bc60]
mov ebx, esi
shr ebx, 8
movzx esi, bl
xor edx, dword [esi*4 + 0x45b860]
movzx esi, byte [eax - 0x1c]
xor edx, dword [esi*4 + 0x45e060]
add ecx, 0x10
mov dword [ecx - 0xc], edx
mov esi, dword [eax - 0x18]
mov ebx, esi
shr ebx, 0x10
mov edx, esi
shr edx, 0x18
mov edx, dword [edx*4 + 0x45c060]
movzx ebx, bl
xor edx, dword [ebx*4 + 0x45bc60]
mov ebx, esi
shr ebx, 8
movzx esi, bl
xor edx, dword [esi*4 + 0x45b860]
movzx esi, byte [eax - 0x18]
xor edx, dword [esi*4 + 0x45e060]
add eax, 0xfffffff0
mov dword [ecx - 8], edx
mov esi, dword [eax - 4]
push esi
pop ebx
shr ebx, 0x10
push esi
pop edx
shr edx, 0x18
mov edx, dword [edx*4 + 0x45c060]
movzx ebx, bl
xor edx, dword [ebx*4 + 0x45bc60]
mov ebx, esi
shr ebx, 8
movzx esi, bl
xor edx, dword [esi*4 + 0x45b860]
movzx esi, byte [eax - 4]
xor edx, dword [esi*4 + 0x45e060]
mov dword [ecx - 4], edx
mov edx, dword [ebp + 8]
cmp edi, dword [edx + 0x200]
jl 0x401550
mov edx, dword [eax - 0x20]
mov dword [ecx], edx
mov edx, dword [eax - 0x1c]
mov dword [ecx + 4], edx
mov edx, dword [eax - 0x18]
mov dword [ecx + 8], edx
mov eax, dword [eax - 0x14]
pop edi
pop esi
mov dword [ecx + 0xc], eax
sub eax, eax
pop ebx
pop ebp
ret