Function at 0x57b080
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push edi
push esi
mov esi, eax
push ebx
and esp, 0xfffffff0
sub esp, 0xa0
fld xword [ebp + 8]
fxam
wait
fnstsw ax
and ax, 0x4500
cmp ax, 0x100
je 0x57b280
fld st(0)
fstp xword [esp + 0x60]
movzx edi, word [esp + 0x68]
test di, di
js 0x57b130
fxam
wait
fnstsw ax
and ax, 0x4500
cmp ax, 0x500
je 0x57b5d8
fstp xword [esp + 0x50]
mov edx, dword [esp + 0x54]
mov eax, dword [esp + 0x50]
mov ecx, edx
mov dword [esp + 0x48], eax
mov edx, eax
mov dword [esp + 0x4c], ecx
and di, 0x7fff
jne 0x57b140
mov eax, ecx
or eax, edx
je 0x57b2a0
mov eax, edx
mov edx, ecx
test ecx, ecx
js 0x57b6ac
mov ecx, 0xffffc001
lea esi, [esi]
shld edx, eax, 1
mov edi, ecx
add eax, eax
sub ecx, 1
test edx, edx
jns 0x57b108
mov dword [esp + 0x48], eax
mov dword [esp + 0x4c], edx
mov ebx, dword [esi + 0xc]
cmp ebx, 0xe
ja 0x57b1df
jmp 0x57b172
or dword [esi + 4], 0x80
jmp 0x57b0b7
mov ebx, dword [esi + 0xc]
sub di, 0x3fff
cmp ebx, 0xe
ja 0x57b2b8
mov edx, dword [esp + 0x4c]
mov eax, dword [esp + 0x48]
test edx, edx
js 0x57b172
lea esi, [esi]
shld edx, eax, 1
add eax, eax
test edx, edx
jns 0x57b160
mov dword [esp + 0x48], eax
mov dword [esp + 0x4c], edx
mov ecx, 0xe
mov eax, 4
xor edx, edx
sub ecx, ebx
shl ecx, 2
shld edx, eax, cl
shl eax, cl
test cl, 0x20
je 0x57b191
mov edx, eax
xor eax, eax
mov dword [esp + 0x40], eax
mov eax, dword [esp + 0x48]
mov dword [esp + 0x44], edx
mov edx, dword [esp + 0x4c]
shrd eax, edx, 1
shr edx, 1
add eax, dword [esp + 0x40]
adc edx, dword [esp + 0x44]
test edx, edx
js 0x57b610
shld edx, eax, 1
add eax, eax
mov ecx, 0xf
sub ecx, ebx
xor ebx, ebx
shl ecx, 2
shrd eax, edx, cl
shr edx, cl
and ecx, 0x20
cmovne eax, edx
cmovne edx, ebx
mov dword [esp + 0x48], eax
mov dword [esp + 0x4c], edx
mov eax, dword [esi + 4]
lea ebx, [esp + 0x88]
mov word [esp + 0x34], di
mov dword [esp + 0x40], ebx
mov edx, eax
mov ecx, eax
mov dword [esp + 0x38], eax
mov eax, dword [esp + 0x48]
and edx, 0x800
and ecx, 0x20
mov dword [esp + 0x48], esi
mov dword [esp + 0x2c], edx
mov edx, dword [esp + 0x4c]
mov byte [esp + 0x3c], cl
jmp 0x57b243
cmp ebx, dword [esp + 0x40]
ja 0x57b231
mov edi, dword [esp + 0x48]
mov esi, dword [edi + 0xc]
test esi, esi
js 0x57b239
add ecx, 0x30
mov byte [ebx], cl
add ebx, 1
mov edi, edx
or edi, eax
je 0x57b578
mov edi, eax
mov ecx, eax
and edi, 0xfffffff0
and ecx, 0xf
or edi, edx
je 0x57b4f0
mov edi, dword [esp + 0x48]
shrd eax, edx, 4
shr edx, 4
mov esi, dword [edi + 0xc]
test esi, esi
jle 0x57b26d
sub esi, 1
mov dword [edi + 0xc], esi
test ecx, ecx
je 0x57b220
cmp ecx, 9
jbe 0x57b231
add ecx, 0x37
or cl, byte [esp + 0x3c]
jmp 0x57b234
fstp st(0)
lea esp, [ebp - 0xc]
mov ecx, esi
mov edx, 0x6757fc
xor eax, eax
pop ebx
pop esi
pop edi
pop ebp
jmp fcn.00579ab0
mov ebx, dword [esi + 0xc]
cmp ebx, 0xe
ja 0x57b2ca
mov eax, dword [esp + 0x48]
mov edx, dword [esp + 0x4c]
jmp 0x57b160
mov ecx, dword [esp + 0x4c]
mov edx, dword [esp + 0x48]
mov eax, ecx
or eax, edx
jne 0x57b1df
mov eax, dword [esi + 4]
mov dword [esp + 0x38], eax
lea eax, [esp + 0x88]
mov dword [esp + 0x40], eax
mov eax, dword [esi + 0xc]
test eax, eax
jle 0x57b688
mov byte [esp + 0x88], 0x2e
lea eax, [esp + 0x89]
mov byte [eax], 0x30
lea ebx, [eax + 1]
mov eax, dword [esi + 8]
mov dword [esp + 0x34], eax
test eax, eax
jle 0x57b59a
movsx edx, di
mov eax, ebx
sub eax, dword [esp + 0x40]
mov dword [esp + 0x48], edx
mov edx, dword [esi + 0xc]
test edx, edx
lea ecx, [eax + edx]
mov edx, dword [esp + 0x38]
cmovg eax, ecx
mov ecx, 0x66666667
and edx, 0x1c0
mov edi, eax
mov eax, dword [esp + 0x48]
cmp edx, 1
sbb edi, 0xfffffffa
imul ecx
mov eax, dword [esp + 0x48]
sar eax, 0x1f
mov ecx, edx
sar ecx, 2
sub ecx, eax
je 0x57b69f
mov dword [esp + 0x3c], ebx
mov dword [esp + 0x30], esi
mov esi, edi
nop
mov eax, 0x66666667
add edi, 1
imul ecx
mov eax, ecx
lea ebx, [edi + 2]
sar eax, 0x1f
sub ebx, esi
sar edx, 2
sub edx, eax
mov ecx, edx
jne 0x57b360
movsx eax, bx
mov ebx, dword [esp + 0x3c]
mov esi, dword [esp + 0x30]
mov dword [esp + 0x3c], eax
mov eax, dword [esp + 0x34]
cmp eax, edi
jle 0x57b5c8
sub eax, edi
test dword [esp + 0x38], 0x600
je 0x57b638
mov dword [esi + 8], eax
test byte [esp + 0x38], 0x80
jne 0x57b5b4
test dword [esp + 0x38], 0x100
jne 0x57b5f8
test byte [esp + 0x38], 0x40
jne 0x57b620
mov edx, esi
mov eax, 0x30
call fcn.005798d0
mov eax, dword [esi + 4]
mov edx, esi
and eax, 0x20
or eax, 0x58
call fcn.005798d0
mov eax, dword [esi + 8]
test eax, eax
jle 0x57b419
test byte [esi + 5], 2
je 0x57b419
sub eax, 1
mov dword [esi + 8], eax
nop
mov edx, esi
mov eax, 0x30
call fcn.005798d0
mov eax, dword [esi + 8]
lea edx, [eax - 1]
mov dword [esi + 8], edx
test eax, eax
jg 0x57b400
mov edi, dword [esp + 0x40]
cmp ebx, dword [esp + 0x40]
ja 0x57b43e
jmp 0x57b46c
movzx eax, word [esi + 0x1c]
mov word [esp + 0x78], ax
test ax, ax
jne 0x57b560
cmp ebx, edi
je 0x57b46c
movsx eax, byte [ebx - 1]
sub ebx, 1
cmp eax, 0x2e
je 0x57b4e0
cmp eax, 0x2c
je 0x57b428
mov edx, esi
call fcn.005798d0
jmp 0x57b43a
mov edx, esi
mov eax, 0x30
call fcn.005798d0
mov eax, dword [esi + 0xc]
lea edx, [eax - 1]
mov dword [esi + 0xc], edx
test eax, eax
jg 0x57b460
mov eax, dword [esi + 4]
mov edx, esi
and eax, 0x20
or eax, 0x50
call fcn.005798d0
mov eax, dword [esp + 0x3c]
add dword [esi + 8], eax
mov eax, dword [esp + 0x48]
or dword [esi + 4], 0x1c0
mov dword [esp + 0x10], esi
cdq
mov dword [esp + 0x78], eax
mov dword [esp + 0x7c], edx
mov ecx, edx
mov dword [esp], eax
mov eax, dword [esp + 0x7c]
sar ecx, 0x1f
mov dword [esp + 0x80], ecx
mov dword [esp + 0x84], ecx
mov dword [esp + 4], eax
mov dword [esp + 8], ecx
mov dword [esp + 0xc], ecx
call fcn.0057a960
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
ret
mov eax, esi
call fcn.00579b40
jmp 0x57b43a
cmp ebx, dword [esp + 0x40]
ja 0x57b510
mov edi, dword [esp + 0x2c]
test edi, edi
jne 0x57b510
mov esi, dword [esp + 0x48]
mov esi, dword [esi + 0xc]
test esi, esi
jle 0x57b516
lea esi, [esi]
mov byte [ebx], 0x2e
add ebx, 1
mov esi, eax
xor esi, 1
mov edi, esi
movzx esi, word [esp + 0x34]
sub esi, 1
or edi, edx
je 0x57b678
mov dword [esp + 0x30], ebx
mov ebx, ecx
lea esi, [esi]
nop
shrd eax, edx, 1
shr edx, 1
mov edi, esi
mov ecx, eax
lea esi, [edi - 1]
xor ecx, 1
or ecx, edx
jne 0x57b538
mov ecx, ebx
mov word [esp + 0x34], di
mov ebx, dword [esp + 0x30]
xor eax, eax
xor edx, edx
jmp 0x57b26d
mov ecx, esi
mov edx, 1
lea eax, [esp + 0x78]
call fcn.00579d50
jmp 0x57b43a
movzx edi, word [esp + 0x34]
mov esi, dword [esp + 0x48]
cmp ebx, dword [esp + 0x40]
je 0x57b2dc
mov eax, dword [esi + 8]
mov dword [esp + 0x34], eax
test eax, eax
jg 0x57b30b
movsx eax, di
mov dword [esp + 0x3c], 2
mov dword [esp + 0x48], eax
test byte [esp + 0x38], 0x80
je 0x57b3b6
mov edx, esi
mov eax, 0x2d
call fcn.005798d0
jmp 0x57b3cf
mov dword [esi + 8], 0xffffffff
jmp 0x57b3ab
fstp st(0)
lea esp, [ebp - 0xc]
mov eax, edi
mov ecx, esi
mov edx, 0x675800
pop ebx
and eax, 0x8000
pop esi
pop edi
pop ebp
jmp fcn.00579ab0
mov edx, esi
mov eax, 0x2b
call fcn.005798d0
jmp 0x57b3cf
add edi, 1
jmp 0x57b1bd
mov edx, esi
mov eax, 0x20
call fcn.005798d0
jmp 0x57b3cf
lea edx, [eax - 1]
mov dword [esi + 8], edx
test eax, eax
jle 0x57b3ab
lea esi, [esi]
lea esi, [esi]
mov edx, esi
mov eax, 0x20
call fcn.005798d0
mov eax, dword [esi + 8]
lea edx, [eax - 1]
mov dword [esi + 8], edx
test eax, eax
jg 0x57b650
mov eax, dword [esi + 4]
mov dword [esp + 0x38], eax
jmp 0x57b3ab
xor eax, eax
xor edx, edx
jmp 0x57b26d
mov eax, dword [esp + 0x40]
test dword [esp + 0x38], 0x800
je 0x57b2f6
jmp 0x57b2e7
mov dword [esp + 0x3c], 2
jmp 0x57b38c
mov edi, 0xffffc002
jmp 0x57b11f