Function at 0x422430
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x48
call fcn.004987d0
mov eax, dword [0x504b88]
xor eax, esp
mov dword [esp + 0x44], eax
cmp dword [0x50908c], 0
mov eax, dword [esp + 0x4c]
push ebx
mov dword [esp + 8], eax
je 0x42254f
lea ecx, [esp + 0xc]
push ecx
call fcn.00404d90
push 0xda
push 0x4d7988
push 0x13
push 5
call fcn.00405140
lea edx, [esp + 0x20]
push edx
push 0x508c40
call fcn.00404dd0
mov ebx, eax
push 0xdc
neg ebx
push 0x4d7988
sbb ebx, ebx
push 0x13
inc ebx
push 6
mov dword [esp + 0x30], ebx
call fcn.00405140
add esp, 0x2c
test ebx, ebx
jne 0x4224c2
push 0xe1
push 0x4d7988
push 0x12
push 9
call fcn.00405140
add esp, 0x10
mov eax, dword [0x509078]
mov edx, dword [0x50907c]
mov ecx, dword [0x509074]
mov dword [esp + 0x14], eax
mov eax, dword [0x50905c]
push esi
mov esi, dword [esp + 0x58]
mov dword [esp + 0x1c], edx
mov edx, dword [0x509060]
mov dword [esp + 0x38], eax
mov eax, dword [0x509064]
push edi
mov edi, ecx
add ecx, esi
cmp ecx, 0x3ff
mov dword [esp + 0x40], edx
mov edx, dword [0x509068]
mov dword [esp + 0x44], eax
mov eax, dword [0x50906c]
mov dword [esp + 0x48], edx
mov dword [esp + 0x4c], eax
mov dword [0x509074], ecx
jl 0x422560
mov eax, 0x7fdff7fd
imul ecx
sub edx, ecx
sar edx, 9
mov eax, edx
shr eax, 0x1f
add eax, edx
imul eax, eax, 0x3ff
add ecx, eax
mov dword [0x509074], ecx
mov dword [0x509070], 0x3ff
jmp 0x422576
mov dword [esp + 4], 0
mov ebx, dword [esp + 4]
jmp 0x4224ac
mov eax, dword [0x509070]
cmp eax, 0x3ff
jge 0x422576
cmp ecx, eax
jle 0x422576
mov dword [0x509070], ecx
mov eax, 0x66666667
imul esi
sar edx, 3
mov eax, edx
shr eax, 0x1f
add eax, edx
lea ecx, [eax + eax*4]
add ecx, ecx
add ecx, ecx
mov edx, esi
sub edx, ecx
xor ecx, ecx
test edx, edx
setg cl
add ecx, eax
add dword [0x50907c], ecx
test ebx, ebx
jne 0x4225bb
push 0x101
push 0x4d7988
push 0x12
push 0xa
call fcn.00405140
add esp, 0x10
lea edx, [esp + 0x24]
push edx
call fcn.00424590
add esp, 4
test esi, esi
jle 0x4226ce
push ebp
mov ebp, esi
dec esi
mov eax, 0xcccccccd
mul esi
shr edx, 4
inc edx
mov dword [esp + 0x18], edx
cmp ebp, 0x14
mov esi, ebp
jle 0x4225ef
mov esi, 0x14
push 0
call fcn.00418cd0
push eax
lea eax, [esp + 0x30]
push eax
call fcn.004245e0
push 0x14
lea ecx, [esp + 0x50]
push ecx
lea edx, [esp + 0x3c]
push edx
call fcn.00424790
lea ebx, [esi + edi - 0x3ff]
add esp, 0x18
lea ecx, [edi + 0x508c48]
lea edx, [esp + 0x28]
test ebx, ebx
jle 0x42264b
mov eax, esi
sub eax, ebx
push eax
push ecx
push edx
call fcn.00424790
push ebx
lea eax, [esp + 0x38]
push 0x508c48
push eax
call fcn.00424790
add esp, 0x18
jmp 0x422656
push esi
push ecx
push edx
call fcn.00424790
add esp, 0xc
mov ebx, dword [esp + 0x14]
push esi
lea eax, [esp + 0x2c]
push ebx
push eax
call fcn.00424790
push 8
lea ecx, [esp + 0x30]
push ecx
lea edx, [esp + 0x3c]
push edx
call fcn.00424790
push 0
lea eax, [esp + 0x5c]
push eax
lea ecx, [esp + 0x48]
push ecx
call fcn.004247a0
mov ecx, 1
add dword [esp + 0x48], ecx
add ebx, esi
add esp, 0x24
xor eax, eax
mov dword [esp + 0x14], ebx
test esi, esi
jle 0x4226bc
mov dl, byte [esp + eax + 0x40]
xor byte [edi + 0x508c48], dl
add edi, ecx
cmp edi, 0x3ff
jl 0x4226b6
xor edi, edi
add eax, ecx
cmp eax, esi
jl 0x4226a0
sub ebp, 0x14
sub dword [esp + 0x18], ecx
jne 0x4225e3
mov ebx, dword [esp + 0x10]
pop ebp
lea eax, [esp + 0x24]
push eax
call fcn.00424820
add esp, 4
pop edi
pop esi
test ebx, ebx
jne 0x4226f7
push 0x134
push 0x4d7988
push 0x12
push 9
call fcn.00405140
add esp, 0x10
xor eax, eax
lea esp, [esp]
movzx ecx, byte [esp + eax + 0x34]
xor byte [eax + 0x50905c], cl
movzx edx, byte [esp + eax + 0x35]
movzx ecx, byte [esp + eax + 0x36]
xor byte [eax + 0x50905d], dl
xor byte [eax + 0x50905e], cl
movzx edx, byte [esp + eax + 0x37]
movzx ecx, byte [esp + eax + 0x38]
xor byte [eax + 0x50905f], dl
xor byte [eax + 0x509060], cl
add eax, 5
cmp eax, 0x14
jl 0x422700
fld qword [0x4d7980]
fld qword [0x509080]
fcom st(1)
fnstsw ax
fstp st(1)
test ah, 5
jp 0x422762
fadd qword [esp + 0x58]
fstp qword [0x509080]
jmp 0x422764
fstp st(0)
test ebx, ebx
pop ebx
jne 0x42277f
push 0x13f
push 0x4d7988
push 0x12
push 0xa
call fcn.00405140
add esp, 0x10
mov ecx, dword [esp + 0x44]
xor ecx, esp
call fcn.00498041
add esp, 0x48
ret