Function at 0x43a160
Capabilities:
Encode data using xor

Disassembly:
push ebp
push edi
push esi
push ebx
mov ebx, eax
sub esp, 0x7c
fld xword [esp + 0x90]
fld st(0)
fstp xword [esp + 0x48]
fxam
wait
fnstsw ax
and ax, 0x4500
cmp ax, 0x100
je 0x43a5a8
fld st(0)
fstp xword [esp + 0x30]
movzx edx, word [esp + 0x38]
test dx, dx
js 0x43a2b0
fxam
wait
fnstsw ax
fstp st(0)
and ax, 0x4500
cmp ax, 0x500
je 0x43a620
and dx, 0x7fff
mov esi, dword [esp + 0x48]
mov edi, dword [esp + 0x4c]
mov word [esp + 0x18], dx
jne 0x43a2c0
mov edx, edi
or edx, esi
je 0x43a5d0
test edi, edi
js 0x43a6f0
mov eax, 0xffffc001
lea esi, [esi]
shld edi, esi, 1
mov edx, eax
add esi, esi
lea eax, [edx - 1]
test edi, edi
jns 0x43a1e8
mov word [esp + 0x18], dx
mov ebp, dword [ebx + 0xc]
cmp ebp, 0xe
jbe 0x43a406
mov eax, dword [ebx + 4]
lea ecx, [esp + 0x5e]
mov edx, ebx
mov dword [esp + 0xc], ecx
mov ebp, ecx
mov ecx, eax
mov dword [esp + 0x24], eax
mov dword [esp + 0x1c], eax
and ecx, 0x800
and eax, 0x20
mov dword [esp + 0x2c], ecx
mov byte [esp + 0x20], al
jmp 0x43a25a
xor ecx, ecx
cmp ebp, dword [esp + 0xc]
ja 0x43a247
mov ebx, dword [edx + 0xc]
test ebx, ebx
js 0x43a250
lea eax, [ecx + 0x30]
mov byte [ebp], al
add ebp, 1
mov ecx, edi
or ecx, esi
je 0x43a460
mov eax, esi
and eax, 0xf
mov ebx, eax
mov ecx, eax
mov dword [esp + 0x10], eax
sar ebx, 0x1f
xor ecx, esi
mov dword [esp + 0x14], ebx
mov ebx, dword [esp + 0x14]
xor ebx, edi
or ebx, ecx
je 0x43a518
mov ecx, dword [edx + 0xc]
shrd esi, edi, 4
shr edi, 4
test ecx, ecx
jle 0x43a292
sub ecx, 1
mov dword [edx + 0xc], ecx
test eax, eax
je 0x43a238
mov ecx, eax
cmp eax, 9
jle 0x43a247
add eax, 0x37
or al, byte [esp + 0x20]
jmp 0x43a24a
or dword [ebx + 4], 0x80
jmp 0x43a19d
mov edx, edi
sub word [esp + 0x18], 0x3fff
mov ebp, dword [ebx + 0xc]
or edx, esi
jne 0x43a1ff
mov eax, dword [ebx + 4]
mov dword [esp + 0x24], eax
lea eax, [esp + 0x5e]
mov dword [esp + 0xc], eax
mov edi, dword [esp + 0x24]
mov dword [esp + 0x1c], edi
test ebp, ebp
jle 0x43a608
mov byte [esp + 0x5e], 0x2e
lea eax, [esp + 0x5f]
mov byte [eax], 0x30
lea ebp, [eax + 1]
mov eax, dword [ebx + 8]
mov dword [esp + 0x20], eax
test eax, eax
jg 0x43a47b
movsx eax, word [esp + 0x18]
mov esi, 2
mov dword [esp + 0x10], eax
test byte [esp + 0x1c], 0x80
jne 0x43a590
test dword [esp + 0x1c], 0x100
jne 0x43a640
test byte [esp + 0x1c], 0x40
jne 0x43a5f0
mov edx, ebx
mov eax, 0x30
call fcn.00438fc0
mov eax, dword [ebx + 4]
mov edx, ebx
and eax, 0x20
or eax, 0x58
call fcn.00438fc0
mov eax, dword [ebx + 8]
test eax, eax
jle 0x43a37b
mov edx, dword [ebx + 4]
and edx, 0x600
cmp edx, 0x200
je 0x43a658
mov edi, dword [esp + 0xc]
cmp ebp, dword [esp + 0xc]
jbe 0x43a3bc
lea esi, [esi]
movsx eax, byte [ebp - 1]
sub ebp, 1
mov edx, ebx
call fcn.00439600
cmp ebp, edi
jne 0x43a388
mov eax, dword [ebx + 0xc]
lea edx, [eax - 1]
mov dword [ebx + 0xc], edx
test eax, eax
jle 0x43a3c9
lea esi, [esi]
nop
mov edx, ebx
mov eax, 0x30
call fcn.00438fc0
mov eax, dword [ebx + 0xc]
lea edx, [eax - 1]
mov dword [ebx + 0xc], edx
test eax, eax
jg 0x43a3b0
mov eax, dword [ebx + 4]
mov edx, ebx
and eax, 0x20
or eax, 0x50
call fcn.00438fc0
add dword [ebx + 8], esi
mov eax, dword [esp + 0x10]
mov ecx, ebx
or dword [ebx + 4], 0x1c0
cdq
call fcn.00439640
add esp, 0x7c
pop ebx
pop esi
pop edi
pop ebp
ret
shld edi, esi, 1
add esi, esi
test edi, edi
jns 0x43a400
mov ecx, 0xe
mov eax, 4
xor edx, edx
sub ecx, ebp
shl ecx, 2
shld edx, eax, cl
shl eax, cl
test cl, 0x20
je 0x43a429
mov edx, eax
xor eax, eax
shrd esi, edi, 1
shr edi, 1
add esi, eax
adc edi, edx
test edi, edi
js 0x43a6b8
shld edi, esi, 1
add esi, esi
mov ecx, 0xf
sub ecx, ebp
shl ecx, 2
shrd esi, edi, cl
shr edi, cl
test cl, 0x20
je 0x43a459
mov esi, edi
xor edi, edi
jmp 0x43a208
mov ebx, edx
cmp ebp, dword [esp + 0xc]
je 0x43a702
mov eax, dword [ebx + 8]
mov dword [esp + 0x20], eax
test eax, eax
jle 0x43a311
movsx edi, word [esp + 0x18]
mov edx, dword [ebx + 0xc]
mov eax, ebp
sub eax, dword [esp + 0xc]
mov dword [esp + 0x10], edi
test edx, edx
jle 0x43a493
add eax, edx
xor edx, edx
test dword [esp + 0x24], 0x1c0
mov ecx, 0x66666667
setne dl
lea edi, [eax + edx + 5]
mov eax, dword [esp + 0x10]
mov dword [esp + 0x18], edi
imul ecx
mov eax, dword [esp + 0x10]
sar eax, 0x1f
mov ecx, edx
sar ecx, 2
sub ecx, eax
je 0x43a6d8
lea esi, [esi]
nop
mov eax, 0x66666667
add edi, 1
imul ecx
sar ecx, 0x1f
lea esi, [edi + 2]
sub si, word [esp + 0x18]
sar edx, 2
sub edx, ecx
mov ecx, edx
jne 0x43a4d0
movsx esi, si
mov eax, dword [esp + 0x20]
cmp eax, edi
jle 0x43a5c0
sub eax, edi
test dword [esp + 0x24], 0x600
je 0x43a680
mov dword [ebx + 8], eax
jmp 0x43a31f
cmp ebp, dword [esp + 0xc]
ja 0x43a52a
mov ebx, dword [esp + 0x2c]
test ebx, ebx
je 0x43a5e0
mov byte [ebp], 0x2e
add ebp, 1
movzx ecx, word [esp + 0x18]
mov ebx, esi
xor ebx, 1
sub ecx, 1
mov dword [esp + 0x10], ebx
mov word [esp + 0x28], cx
mov ecx, dword [esp + 0x10]
or ecx, edi
je 0x43a6c8
movzx ecx, word [esp + 0x28]
mov dword [esp + 0x10], eax
mov dword [esp + 0x28], edx
shrd esi, edi, 1
shr edi, 1
mov eax, ecx
mov ebx, esi
mov edx, edi
lea ecx, [eax - 1]
xor ebx, 1
or edx, ebx
jne 0x43a560
mov word [esp + 0x18], ax
mov edx, dword [esp + 0x28]
xor esi, esi
xor edi, edi
mov eax, dword [esp + 0x10]
jmp 0x43a292
mov edx, ebx
mov eax, 0x2d
call fcn.00438fc0
jmp 0x43a343
fstp st(0)
mov ecx, ebx
mov edx, 0x4d6d59
xor eax, eax
call fcn.00439220
add esp, 0x7c
pop ebx
pop esi
pop edi
pop ebp
ret
mov dword [ebx + 8], 0xffffffff
jmp 0x43a31f
mov ebp, dword [ebx + 0xc]
jmp 0x43a2d4
mov ecx, dword [edx + 0xc]
test ecx, ecx
jg 0x43a52a
jmp 0x43a531
mov edx, ebx
mov eax, 0x20
call fcn.00438fc0
jmp 0x43a343
and edi, 0x800
mov eax, dword [esp + 0xc]
je 0x43a2fc
jmp 0x43a2f3
mov eax, edx
mov ecx, ebx
mov edx, 0x4d6d5d
and eax, 0x8000
call fcn.00439220
add esp, 0x7c
pop ebx
pop esi
pop edi
pop ebp
ret
mov edx, ebx
mov eax, 0x2b
call fcn.00438fc0
jmp 0x43a343
sub eax, 1
mov dword [ebx + 8], eax
nop
mov edx, ebx
mov eax, 0x30
call fcn.00438fc0
mov eax, dword [ebx + 8]
lea edx, [eax - 1]
mov dword [ebx + 8], edx
test eax, eax
jg 0x43a660
jmp 0x43a37b
lea edx, [eax - 1]
mov dword [ebx + 8], edx
test eax, eax
jle 0x43a31f
nop
mov edx, ebx
mov eax, 0x20
call fcn.00438fc0
mov eax, dword [ebx + 8]
lea edx, [eax - 1]
mov dword [ebx + 8], edx
test eax, eax
jg 0x43a690
mov eax, dword [ebx + 4]
mov dword [esp + 0x1c], eax
jmp 0x43a31f
add word [esp + 0x18], 1
jmp 0x43a441
xor esi, esi
xor edi, edi
jmp 0x43a292
mov edi, dword [esp + 0x18]
mov esi, 2
jmp 0x43a4f1
mov eax, 0xffffc002
mov ebp, dword [ebx + 0xc]
mov word [esp + 0x18], ax
jmp 0x43a1ff
mov ebp, dword [edx + 0xc]
jmp 0x43a2e3