Function at 0x4a9990
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
mov eax, ecx
mov dword [ebp - 0x10], edx
mov dword [ebp - 0x1c], eax
push esi
push edi
mov eax, dword [eax]
mov ecx, eax
sar ecx, 2
mov edi, eax
mov dword [ebp - 0x20], ecx
mov ecx, eax
sar ecx, 3
shl eax, 2
sar edi, 1
mov dword [ebp - 4], edi
mov dword [ebp - 0xc], ecx
mov dword [ebp - 0x28], eax
call fcn.0049f650
mov ecx, dword [ebp - 0x10]
lea eax, [edi*4]
mov esi, esp
mov dword [ebp - 0x24], eax
lea edi, [eax + esi]
mov eax, dword [ebp - 4]
add eax, dword [ebp - 0x20]
mov dword [ebp - 0x18], edi
lea edx, [ecx + eax*4]
xor ecx, ecx
lea eax, [edx + 4]
mov dword [ebp - 8], eax
mov eax, dword [ebp - 0x1c]
mov eax, dword [eax + 8]
add eax, dword [ebp - 0x24]
cmp dword [ebp - 0xc], ecx
jle 0x4a9a58
mov esi, dword [ebp - 8]
nop dword [eax + eax]
movss xmm2, dword [esi + 8]
sub edx, 0x10
movss xmm1, dword [eax - 4]
sub eax, 8
movss xmm3, dword [edx + 8]
addss xmm3, dword [esi]
addss xmm2, dword [edx]
movss xmm0, dword [eax]
add esi, 0x10
mulss xmm0, xmm3
mulss xmm1, xmm2
addss xmm1, xmm0
movss dword [edi + ecx*4], xmm1
movss xmm1, dword [eax]
movss xmm0, dword [eax + 4]
mulss xmm1, xmm2
mulss xmm0, xmm3
subss xmm1, xmm0
movss dword [edi + ecx*4 + 4], xmm1
add ecx, 2
cmp ecx, dword [ebp - 0xc]
jl 0x4a9a00
mov esi, dword [ebp - 4]
mov edi, dword [ebp - 0x10]
mov dword [ebp - 8], esi
add edi, 4
mov esi, dword [ebp - 0xc]
sub dword [ebp - 8], esi
cmp ecx, dword [ebp - 8]
jge 0x4a9aca
mov esi, dword [ebp - 0x18]
movss xmm3, dword [edx - 8]
sub edx, 0x10
subss xmm3, dword [edi]
movss xmm1, dword [eax - 4]
sub eax, 8
movss xmm2, dword [edx]
subss xmm2, dword [edi + 8]
movss xmm0, dword [eax]
add edi, 0x10
mulss xmm0, xmm3
mulss xmm1, xmm2
addss xmm1, xmm0
movss dword [esi + ecx*4], xmm1
movss xmm1, dword [eax]
movss xmm0, dword [eax + 4]
mulss xmm1, xmm2
mulss xmm0, xmm3
subss xmm1, xmm0
movss dword [esi + ecx*4 + 4], xmm1
add ecx, 2
cmp ecx, dword [ebp - 8]
jl 0x4a9a72
mov edx, dword [ebp - 0x10]
mov esi, esp
add edx, dword [ebp - 0x28]
mov dword [ebp - 0x28], edx
mov edx, dword [ebp - 0x18]
cmp ecx, dword [ebp - 4]
jge 0x4a9b50
movss xmm4, dword [0x4dbc60]
mov esi, dword [ebp - 0x28]
nop dword [eax + eax]
movss xmm3, dword [esi - 8]
sub esi, 0x10
movss xmm1, dword [eax - 4]
sub eax, 8
xorps xmm3, xmm4
subss xmm3, dword [edi]
movss xmm2, dword [esi]
movss xmm0, dword [eax]
xorps xmm2, xmm4
subss xmm2, dword [edi + 8]
add edi, 0x10
mulss xmm0, xmm3
mulss xmm1, xmm2
addss xmm1, xmm0
movss dword [edx + ecx*4], xmm1
movss xmm1, dword [eax]
movss xmm0, dword [eax + 4]
mulss xmm1, xmm2
mulss xmm0, xmm3
subss xmm1, xmm0
movss dword [edx + ecx*4 + 4], xmm1
add ecx, 2
cmp ecx, dword [ebp - 4]
jl 0x4a9af0
mov esi, esp
push dword [ebp - 4]
mov edi, dword [ebp - 0x1c]
mov ecx, edi
call fcn.004a8b10
add esp, 4
mov edx, esi
mov ecx, edi
call fcn.004a8960
mov eax, dword [edi + 8]
xor ecx, ecx
mov edx, dword [ebp - 0x24]
add eax, edx
add edx, dword [ebp + 8]
cmp dword [ebp - 0x20], ecx
jle 0x4a9bd4
nop dword [eax + eax]
movss xmm1, dword [eax]
sub edx, 4
mulss xmm1, dword [esi]
movss xmm0, dword [eax + 4]
mulss xmm0, dword [esi + 4]
addss xmm1, xmm0
mulss xmm1, dword [edi + 0x10]
mov edi, dword [ebp + 8]
movss dword [edi + ecx*4], xmm1
inc ecx
movss xmm1, dword [eax + 4]
movss xmm0, dword [eax]
add eax, 8
mulss xmm1, dword [esi]
mov edi, dword [ebp - 0x1c]
mulss xmm0, dword [esi + 4]
add esi, 8
subss xmm1, xmm0
mulss xmm1, dword [edi + 0x10]
movss dword [edx], xmm1
cmp ecx, dword [ebp - 0x20]
jl 0x4a9b80
lea esp, [ebp - 0x30]
pop edi
pop esi
mov esp, ebp
pop ebp
ret