Function at 0x640ba5
Capabilities:
Encode data using xor

Disassembly:
sub esp, 0x38
cmp dword [esp + 0x44], 0
push esi
mov esi, ecx
jne 0x640bb3
xor eax, eax
pop esi
add esp, 0x38
ret 0x18
mov eax, dword [esp + 0x40]
test eax, eax
jne 0x640bc5
or eax, 0xffffffff
pop esi
add esp, 0x38
ret 0x18
mov ecx, dword [esp + 0x44]
test ecx, ecx
je 0x640bbb
mov edx, dword [esp + 0x4c]
test edx, edx
je 0x640bbb
mov dword [esi + 0x414], eax
dec eax
mov dword [esi + 0x420], eax
mov dword [esi + 0x410], ecx
mov eax, 0xabeefbee
xor ecx, ecx
push edi
movzx edi, byte [ecx + str._r_n_r_naPLib_v1.01_____the_smaller_the_better_:__r_nCopyright__c__1998_2009_by_Joergen_Ibsen__All_Rights_Reserved._r_n_r_nMore_information:_http:__www.ibsensoftware.com__r_n_r_n]
rol eax, 1
xor eax, edi
movzx edi, byte [ecx + 0xfbc311]
rol eax, 1
xor eax, edi
movzx edi, byte [ecx + 0xfbc312]
rol eax, 1
xor eax, edi
movzx edi, byte [ecx + 0xfbc313]
rol eax, 1
add ecx, 4
xor eax, edi
cmp ecx, 0x100
jb 0x640bf0
test eax, eax
jne 0x6415ea
push ebx
mov dword [esi], edx
lea ecx, [esi + 4]
add edx, 0x5a018
mov edi, 0x100
lea ebx, [eax + 1]
push ebp
mov dword [ecx], edx
xor eax, eax
add eax, 0
mov ebp, dword [ecx]
mov dword [ebp + eax], 0
add eax, 4
cmp eax, 0x400
jb 0x640c4d
add edx, 0x400
add ecx, 4
sub edi, ebx
jne 0x640c44
mov ecx, dword [esi + 0x414]
mov edx, dword [esi]
or eax, 0xffffffff
mov dword [esi + 0x424], eax
mov dword [esi + 0x408], ecx
mov dword [esi + 0x404], ebx
mov dword [esi + 0x40c], edi
mov dword [edx], edi
mov ecx, dword [esi + 0x414]
mov edx, dword [esi + 0x410]
mov dword [esi + 0x428], edi
mov cl, byte [ecx]
mov dword [esp + 0x1c], eax
mov eax, dword [esp + 0x54]
mov byte [edx], cl
add dword [esi + 0x414], ebx
add dword [esi + 0x410], ebx
dec eax
mov dword [esp + 0x10], edi
mov dword [esp + 0x18], edi
mov dword [esi + 0x41c], ebx
mov dword [esp + 0x58], ebx
cmp eax, ebx
jbe 0x6414cb
lea ebx, [ebx]
mov eax, dword [esp + 0x5c]
test eax, eax
je 0x640d20
mov ecx, dword [esp + 0x18]
inc ecx
mov dword [esp + 0x18], ecx
test cl, cl
jne 0x640d20
mov edx, dword [esp + 0x60]
mov ecx, dword [esi + 0x410]
sub ecx, dword [esp + 0x50]
push edx
mov edx, dword [esi + 0x414]
sub edx, dword [esp + 0x50]
push ecx
mov ecx, dword [esp + 0x5c]
push edx
push ecx
call eax
add esp, 0x10
test eax, eax
je 0x641495
cmp ebx, dword [esp + 0x1c]
jne 0x640d38
mov ebp, dword [esp + 0x44]
mov edx, dword [esp + 0x40]
mov dword [esp + 0x2c], ebp
mov dword [esp + 0x28], edx
jmp 0x640d57
mov eax, dword [esp + 0x54]
mov ecx, dword [esi + 0x414]
sub eax, ebx
push eax
push ebx
push ecx
lea edx, [esp + 0x34]
push edx
mov ecx, esi
call fcn.006408d6
mov ebp, dword [esp + 0x2c]
cmp ebp, 2
jl 0x641306
mov eax, dword [esi + 0x424]
mov dword [esp + 0x14], 0
cmp dword [esp + 0x28], eax
jne 0x640dd6
cmp edi, 1
jbe 0x6410cf
cmp dword [esp + 0x38], eax
je 0x6410cf
mov eax, dword [esp + 0x10]
push edi
sub ebx, edi
push ebx
push eax
mov ecx, esi
call fcn.00640279
mov ecx, dword [esp + 0x38]
push edi
push ecx
mov ecx, esi
mov ebx, eax
call fcn.0064055a
cmp eax, ebx
jge 0x6410cb
mov eax, dword [esp + 0x38]
cmp eax, 0x500
jl 0x640dc2
cmp edi, 2
je 0x6410cb
cmp eax, 0x7d00
jl 0x640dd2
cmp edi, 3
je 0x6410cb
mov ebx, dword [esp + 0x58]
mov eax, dword [esp + 0x54]
mov edx, dword [esi + 0x414]
sub eax, ebx
mov dword [esp + 0x20], eax
dec eax
push eax
lea ecx, [ebx + 1]
push ecx
inc edx
push edx
lea eax, [esp + 0x4c]
push eax
mov ecx, esi
call fcn.006408d6
mov ecx, dword [esp + 0x28]
cmp dword [esp + 0x40], ecx
lea eax, [ebx + 1]
mov dword [esp + 0x1c], eax
push ebp
jl 0x640e45
mov edx, ecx
push edx
mov ecx, esi
call fcn.0064055a
mov ecx, dword [esp + 0x40]
mov dword [esp + 0x24], eax
mov eax, dword [esp + 0x44]
push eax
push ecx
mov ecx, esi
call fcn.0064055a
mov ecx, dword [esp + 0x24]
sub ecx, eax
add ecx, ecx
mov eax, 0x38e38e39
imul ecx
sar edx, 1
mov eax, edx
shr eax, 0x1f
add eax, edx
jmp 0x640e75
mov ecx, dword [esp + 0x2c]
push ecx
mov ecx, esi
call fcn.0064055a
mov edx, dword [esp + 0x44]
mov ebx, eax
mov eax, dword [esp + 0x40]
push edx
push eax
mov ecx, esi
call fcn.0064055a
sub ebx, eax
mov eax, ebx
mov ebx, dword [esp + 0x58]
cdq
and edx, 3
add eax, edx
sar eax, 2
add eax, dword [esp + 0x44]
cmp ebp, eax
jge 0x640e85
mov dword [esp + 0x14], 1
test edi, edi
jbe 0x640ec1
cmp dword [esp + 0x44], ebp
jl 0x640ebf
mov ecx, dword [esp + 0x28]
push ebp
push ecx
mov ecx, esi
call fcn.0064055a
mov edx, dword [esp + 0x44]
mov ebx, eax
mov eax, dword [esp + 0x40]
push edx
push eax
mov ecx, esi
call fcn.0064055a
cmp eax, ebx
mov ebx, dword [esp + 0x58]
jge 0x640ebf
mov dword [esp + 0x14], 1
test edi, edi
jne 0x640f10
cmp dword [esp + 0x44], ebp
jge 0x640f10
mov ecx, dword [esi + 0x414]
push 1
push ebx
push ecx
mov ecx, esi
call fcn.00640279
mov edx, dword [esp + 0x44]
mov ebx, eax
mov eax, dword [esp + 0x40]
push edx
push eax
mov ecx, esi
call fcn.0064055a
mov ecx, dword [esp + 0x28]
push ebp
push ecx
mov ecx, esi
lea ebx, [eax + ebx + 1]
call fcn.0064055a
cmp ebx, eax
mov ebx, dword [esp + 0x58]
jle 0x640f10
mov dword [esp + 0x14], 0
jmp 0x640f1b
cmp dword [esp + 0x14], 0
jne 0x6412e9
cmp ebp, 2
jle 0x6410cf
mov edx, dword [esp + 0x20]
mov eax, dword [esi + 0x414]
add edx, 0xfffffffe
push edx
add ebx, 2
push ebx
add eax, 2
push eax
lea ecx, [esp + 0x3c]
push ecx
mov ecx, esi
call fcn.006408d6
mov eax, dword [esp + 0x30]
cmp eax, dword [esp + 0x28]
mov edx, dword [esp + 0x34]
push edx
mov ecx, esi
push eax
jl 0x640f7b
call fcn.0064055a
mov ebx, eax
mov eax, dword [esp + 0x28]
push ebp
push eax
mov ecx, esi
call fcn.0064055a
sub eax, ebx
cdq
and edx, 3
add eax, edx
mov ecx, eax
sar ecx, 2
jmp 0x640fa5
call fcn.0064055a
mov ebx, eax
mov eax, dword [esp + 0x28]
push ebp
push eax
mov ecx, esi
call fcn.0064055a
mov ecx, eax
sub ecx, ebx
add ecx, ecx
mov eax, 0x2e8ba2e9
imul ecx
sar edx, 1
mov ecx, edx
shr ecx, 0x1f
add ecx, edx
mov eax, dword [esp + 0x34]
add ecx, eax
cmp ebp, ecx
jge 0x640fb7
mov dword [esp + 0x14], 1
test edi, edi
jbe 0x640fe3
cmp eax, ebp
jl 0x640fe3
mov edx, dword [esp + 0x30]
push eax
push edx
mov ecx, esi
call fcn.0064055a
mov ebx, eax
mov eax, dword [esp + 0x28]
push ebp
push eax
mov ecx, esi
call fcn.0064055a
cmp ebx, eax
jl 0x6412e5
cmp dword [esp + 0x14], 0
jne 0x6412e5
cmp ebp, 3
jle 0x6410cb
mov ecx, dword [esp + 0x20]
mov edx, dword [esp + 0x58]
mov eax, dword [esi + 0x414]
add ecx, 0xfffffffd
push ecx
add edx, 3
push edx
add eax, 3
push eax
lea ecx, [esp + 0x3c]
push ecx
mov ecx, esi
call fcn.006408d6
mov eax, dword [esp + 0x30]
mov edx, dword [esp + 0x34]
mov ebx, dword [esp + 0x28]
cmp eax, ebx
push edx
mov ecx, esi
push eax
jl 0x641056
call fcn.0064055a
push ebp
push ebx
mov ecx, esi
mov dword [esp + 0x2c], eax
call fcn.0064055a
mov ecx, dword [esp + 0x24]
sub eax, ecx
cdq
and edx, 3
add eax, edx
mov ecx, eax
sar ecx, 2
jmp 0x641082
call fcn.0064055a
push ebp
push ebx
mov ecx, esi
mov dword [esp + 0x2c], eax
call fcn.0064055a
mov ecx, eax
mov eax, dword [esp + 0x24]
sub ecx, eax
add ecx, ecx
mov eax, 0x2e8ba2e9
imul ecx
sar edx, 1
mov ecx, edx
shr ecx, 0x1f
add ecx, edx
mov eax, dword [esp + 0x34]
add ecx, eax
cmp ebp, ecx
jge 0x641094
mov dword [esp + 0x14], 1
test edi, edi
jbe 0x6410c0
cmp eax, ebp
jl 0x6410c0
mov edx, dword [esp + 0x30]
push eax
push edx
mov ecx, esi
call fcn.0064055a
mov ebx, eax
mov eax, dword [esp + 0x28]
push ebp
push eax
mov ecx, esi
call fcn.0064055a
cmp ebx, eax
jl 0x6412e5
cmp dword [esp + 0x14], 0
jne 0x6412e5
mov ebx, dword [esp + 0x58]
test edi, edi
je 0x641242
cmp edi, 1
jbe 0x641230
mov edx, dword [esp + 0x54]
mov ecx, edi
sub ecx, ebx
lea eax, [edx + ecx]
cmp eax, edi
jbe 0x6410f1
mov eax, edi
push eax
mov eax, dword [esp + 0x14]
sub ebx, edi
push ebx
push eax
lea ecx, [esp + 0x3c]
push ecx
mov ecx, esi
mov dword [esp + 0x24], ebx
call fcn.006408d6
cmp dword [esp + 0x34], edi
jb 0x641144
mov edx, dword [esp + 0x30]
push edi
push edx
mov ecx, esi
call fcn.0064055a
mov ebx, eax
mov eax, dword [esp + 0x38]
push edi
push eax
mov ecx, esi
call fcn.0064055a
cmp eax, ebx
mov ebx, dword [esp + 0x14]
jle 0x641144
mov ecx, dword [esp + 0x30]
mov edx, dword [esp + 0x34]
mov dword [esp + 0x38], ecx
mov dword [esp + 0x3c], edx
mov eax, dword [esp + 0x10]
push edi
push ebx
push eax
mov ecx, esi
call fcn.00640279
mov ecx, dword [esp + 0x38]
push edi
push ecx
mov ecx, esi
mov ebx, eax
call fcn.0064055a
cmp eax, ebx
jge 0x641210
mov ebx, dword [esp + 0x28]
cmp ebx, dword [esi + 0x424]
jne 0x6411cd
mov edx, dword [esp + 0x14]
mov eax, dword [esp + 0x10]
push edi
push edx
push eax
mov ecx, esi
call fcn.00640279
push ebp
push ebx
mov ecx, esi
mov dword [esp + 0x2c], eax
call fcn.0064055a
mov ecx, dword [esp + 0x24]
add ecx, eax
mov edx, ebx
push ebp
inc edx
mov dword [esp + 0x28], ecx
push edx
mov ecx, esi
call fcn.0064055a
mov ebx, eax
mov eax, dword [esp + 0x38]
push edi
push eax
mov ecx, esi
call fcn.0064055a
mov ebp, dword [esp + 0x2c]
add ebx, eax
mov eax, dword [esp + 0x24]
cmp eax, ebx
mov ebx, dword [esp + 0x58]
jle 0x641214
jmp 0x6411d1
mov ebx, dword [esp + 0x58]
mov eax, dword [esp + 0x38]
cmp eax, dword [esi + 0x424]
jne 0x6411e6
cmp dword [esi + 0x428], 0
je 0x641201
cmp eax, 0x500
jl 0x6411f2
cmp edi, 2
je 0x641214
cmp dword [esp + 0x38], 0x7d00
jl 0x641201
cmp edi, 3
je 0x641214
mov ecx, dword [esp + 0x38]
push edi
push ecx
mov ecx, esi
call fcn.006405dc
jmp 0x641240
mov ebx, dword [esp + 0x58]
mov eax, dword [esp + 0x10]
mov edx, ebx
sub edx, edi
push edx
push eax
mov ecx, esi
call fcn.006402d2
inc dword [esp + 0x10]
sub edi, 1
jne 0x641214
jmp 0x641242
mov edx, dword [esp + 0x10]
lea ecx, [ebx - 1]
push ecx
push edx
mov ecx, esi
call fcn.006402d2
xor edi, edi
cmp ebp, 3
jg 0x6412cc
mov eax, dword [esi + 0x414]
push ebp
push ebx
push eax
mov ecx, esi
call fcn.00640279
mov ecx, dword [esp + 0x28]
push ebp
push ecx
mov ecx, esi
mov ebx, eax
call fcn.0064055a
cmp eax, ebx
jg 0x641296
mov eax, dword [esp + 0x28]
cmp eax, dword [esi + 0x424]
jne 0x641283
cmp dword [esi + 0x428], 0
je 0x6412c8
cmp eax, 0x500
jl 0x64128f
cmp ebp, 2
je 0x641296
cmp eax, 0x7d00
jl 0x6412c8
mov ebx, dword [esp + 0x58]
mov dword [esp + 0x14], ebp
test ebp, ebp
je 0x6412c2
mov edx, dword [esi + 0x414]
push ebx
push edx
mov ecx, esi
call fcn.006402d2
mov eax, 1
add dword [esi + 0x414], eax
sub dword [esp + 0x14], eax
jne 0x6412a2
lea ebx, [ebp + ebx - 1]
jmp 0x641322
mov ebx, dword [esp + 0x58]
mov eax, dword [esp + 0x28]
push ebp
push eax
mov ecx, esi
call fcn.006405dc
add dword [esi + 0x414], ebp
lea ebx, [ebp + ebx - 1]
jmp 0x641322
mov ebx, dword [esp + 0x58]
test edi, edi
jne 0x641303
mov ecx, dword [esp + 0x28]
mov edx, dword [esi + 0x414]
mov dword [esp + 0x3c], ebp
mov dword [esp + 0x38], ecx
mov dword [esp + 0x10], edx
inc edi
jmp 0x64131c
test edi, edi
je 0x64130d
inc edi
jmp 0x64131c
mov eax, dword [esi + 0x414]
push ebx
push eax
mov ecx, esi
call fcn.006402d2
inc dword [esi + 0x414]
test edi, edi
je 0x641415
cmp edi, dword [esp + 0x3c]
jne 0x641415
mov edx, dword [esp + 0x54]
mov ecx, edi
sub ecx, ebx
lea eax, [edx + ecx]
cmp eax, edi
jbe 0x641345
mov eax, edi
push eax
mov eax, dword [esp + 0x14]
mov ebp, ebx
sub ebp, edi
push ebp
push eax
lea ecx, [esp + 0x3c]
push ecx
mov ecx, esi
mov dword [esp + 0x24], ebp
call fcn.006408d6
cmp dword [esp + 0x34], edi
jb 0x64139a
mov edx, dword [esp + 0x30]
push edi
push edx
mov ecx, esi
call fcn.0064055a
mov ebp, eax
mov eax, dword [esp + 0x38]
push edi
push eax
mov ecx, esi
call fcn.0064055a
cmp eax, ebp
mov ebp, dword [esp + 0x14]
jle 0x64139a
mov ecx, dword [esp + 0x30]
mov edx, dword [esp + 0x34]
mov dword [esp + 0x38], ecx
mov dword [esp + 0x3c], edx
mov eax, dword [esp + 0x10]
push edi
push ebp
push eax
mov ecx, esi
call fcn.00640279
mov ecx, dword [esp + 0x38]
push edi
push ecx
mov ecx, esi
mov ebp, eax
call fcn.0064055a
cmp eax, ebp
jge 0x6413f5
mov eax, dword [esp + 0x38]
cmp eax, dword [esi + 0x424]
jne 0x6413d0
cmp dword [esi + 0x428], 0
je 0x6413e8
cmp eax, 0x500
jl 0x6413dc
cmp edi, 2
je 0x6413f5
cmp eax, 0x7d00
jl 0x6413e8
cmp edi, 3
je 0x6413f5
push edi
push eax
mov ecx, esi
call fcn.006405dc
xor edi, edi
jmp 0x641415
mov ebp, dword [esp + 0x10]
add eax, 0
mov edx, ebx
sub edx, edi
push edx
push ebp
mov ecx, esi
call fcn.006402d2
inc ebp
sub edi, 1
jne 0x6413fe
mov dword [esp + 0x10], ebp
mov eax, dword [esp + 0x54]
inc ebx
dec eax
mov dword [esp + 0x58], ebx
cmp ebx, eax
jb 0x640cde
test edi, edi
je 0x6414cb
cmp edi, 1
jbe 0x6414bb
mov ecx, dword [esp + 0x10]
push edi
mov eax, ebx
sub eax, edi
push eax
push ecx
mov ecx, esi
call fcn.00640279
mov edx, dword [esp + 0x38]
push edi
push edx
mov ecx, esi
mov ebp, eax
call fcn.0064055a
cmp eax, ebp
jg 0x6414a2
mov eax, dword [esp + 0x38]
cmp eax, dword [esi + 0x424]
jne 0x641472
cmp dword [esi + 0x428], 0
je 0x64148a
cmp eax, 0x500
jl 0x64147e
cmp edi, 2
je 0x6414a2
cmp eax, 0x7d00
jl 0x64148a
cmp edi, 3
je 0x6414a2
push edi
push eax
mov ecx, esi
call fcn.006405dc
jmp 0x6414cb
pop ebp
pop ebx
pop edi
or eax, 0xffffffff
pop esi
add esp, 0x38
ret 0x18
mov ebp, dword [esp + 0x10]
mov eax, ebx
sub eax, edi
push eax
push ebp
mov ecx, esi
call fcn.006402d2
inc ebp
sub edi, 1
jne 0x6414a6
jmp 0x6414cb
mov edx, dword [esp + 0x10]
lea ecx, [ebx - 1]
push ecx
push edx
mov ecx, esi
call fcn.006402d2
mov edi, dword [esp + 0x54]
mov ebp, 1
cmp ebx, edi
jae 0x6414f9
lea ebx, [ebx]
mov eax, dword [esi + 0x414]
push ebx
push eax
mov ecx, esi
call fcn.006402d2
add dword [esi + 0x414], ebp
add ebx, ebp
cmp ebx, edi
jb 0x6414de
or ebx, 0xffffffff
add dword [esi + 0x41c], ebx
lea ecx, [ebx + 9]
jne 0x641520
mov eax, dword [esi + 0x410]
mov dword [esi + 0x418], eax
inc eax
mov dword [esi + 0x41c], ecx
mov dword [esi + 0x410], eax
mov eax, dword [esi + 0x418]
mov dl, byte [eax]
add dl, dl
inc dl
mov byte [eax], dl
add dword [esi + 0x41c], ebx
jne 0x64154f
mov eax, dword [esi + 0x410]
mov dword [esi + 0x418], eax
inc eax
mov dword [esi + 0x41c], ecx
mov dword [esi + 0x410], eax
mov eax, dword [esi + 0x418]
mov dl, byte [eax]
add dl, dl
inc dl
mov byte [eax], dl
add dword [esi + 0x41c], ebx
jne 0x64157e
mov eax, dword [esi + 0x410]
mov dword [esi + 0x418], eax
inc eax
mov dword [esi + 0x41c], ecx
mov dword [esi + 0x410], eax
mov eax, dword [esi + 0x418]
shl byte [eax], 1
mov eax, dword [esi + 0x410]
mov byte [eax], 0
mov ecx, dword [esi + 0x41c]
mov eax, dword [esi + 0x418]
add dword [esi + 0x410], ebp
sub ecx, ebp
shl byte [eax], cl
mov eax, dword [esp + 0x5c]
test eax, eax
je 0x6415de
mov ecx, dword [esp + 0x60]
mov edx, dword [esi + 0x410]
sub edx, dword [esp + 0x50]
push ecx
mov ecx, dword [esi + 0x414]
sub ecx, dword [esp + 0x50]
push edx
push ecx
push edi
call eax
add esp, 0x10
test eax, eax
jne 0x6415de
pop ebp
mov eax, ebx
pop ebx
pop edi
pop esi
add esp, 0x38
ret 0x18
mov eax, dword [esi + 0x410]
sub eax, dword [esp + 0x50]
pop ebp
pop ebx
pop edi
pop esi
add esp, 0x38
ret 0x18