Function at 0x490120
Capabilities:
Encode data using base64

Disassembly:
lea r12, [rsp - 8]
cmp r12, qword [r14 + 0x10]
jbe 0x49085e
sub rsp, 0x88
mov qword [rsp + 0x80], rbp
lea rbp, [rsp + 0x80]
mov qword [rsp + 0x90], rax
mov rdx, qword [r11]
add rdx, 0xffffffffffffffc4
neg rdx
cmp rdx, 0x40
sbb r11, r11
test r9, r9
mov r12d, 0
cmove r10, r12
mov r12, rcx
mov rcx, rdx
shl r9, cl
and r9, r11
jmp 0x490180
shl r9, 1
dec r10
test r9, r9
je 0x49018c
bt r9, 0x3c
jae 0x49017a
mov qword [rsp + 0xa8], rdi
mov byte [rsp + 0xb1], r8b
mov qword [rsp + 0x98], rbx
mov byte [rsp + 0xb0], sil
mov qword [rsp + 0x90], rax
mov qword [rsp + 0x70], r12
cmp rdi, 0xf
jae 0x490231
mov rcx, rdi
shl rcx, 2
cmp rcx, 0x40
sbb rdx, rdx
lea r11, [rcx - 0x3c]
neg r11
cmp r11, 0x40
sbb r13, r13
mov r15, r9
shl r9, cl
and rdx, r9
movabs r9, 0xfffffffffffffff
and r9, rdx
mov rcx, r11
shr r15, cl
and r15, r13
mov rdx, r15
and r15d, 1
or r9, r15
movabs r15, 0x800000000000000
cmp r15, r9
jae 0x490219
lea r15, [rdx + 1]
jmp 0x49021c
mov r15, rdx
shl r15, cl
and r15, r13
bt r15, 0x3d
jae 0x490234
shr r15, 1
inc r10
jmp 0x490234
mov r15, r9
mov qword [rsp + 0x68], r10
mov qword [rsp + 0x60], r15
nop
call fcn.00496580
movzx ecx, byte [rsp + 0xb0]
cmp cl, 0x58
jne 0x49025f
call fcn.00496800
movzx ecx, byte [rsp + 0xb0]
mov qword [rsp + 0x48], rbx
mov qword [rsp + 0x78], rax
movzx edx, byte [rsp + 0xb1]
test dl, dl
je 0x4902d5
mov rdx, qword [rsp + 0x98]
inc rdx
mov r8, qword [rsp + 0x70]
cmp r8, rdx
jb 0x490294
mov rsi, qword [rsp + 0x90]
jmp 0x4902ce
mov rax, qword [rsp + 0x90]
mov rbx, rdx
mov rcx, r8
mov edi, 1
lea rsi, [0x00680cc0]
call fcn.004417e0
mov rdx, rbx
mov rsi, rax
mov r8, rcx
mov rax, qword [rsp + 0x78]
movzx ecx, byte [rsp + 0xb0]
mov rbx, qword [rsp + 0x48]
mov byte [rdx + rsi - 1], 0x2d
jmp 0x4902ea
mov r8, qword [rsp + 0x70]
mov rsi, qword [rsp + 0x90]
mov rdx, qword [rsp + 0x98]
add rdx, 3
cmp r8, rdx
jae 0x490328
mov rax, rsi
mov rbx, rdx
mov rcx, r8
mov edi, 3
lea rsi, [0x00680cc0]
call fcn.004417e0
mov rsi, rax
mov r8, rcx
mov rdx, rbx
mov rax, qword [rsp + 0x78]
movzx ecx, byte [rsp + 0xb0]
mov rbx, qword [rsp + 0x48]
mov byte [rdx + rsi - 3], 0x30
mov byte [rdx + rsi - 2], cl
mov r9, qword [rsp + 0x60]
mov r10, r9
shr r9, 0x3c
and r9d, 1
add r9d, 0x30
mov byte [rdx + rsi - 1], r9b
shl r10, 4
mov qword [rsp + 0x60], r10
mov r9, qword [rsp + 0xa8]
nop dword [rax + rax]
test r9, r9
jge 0x4903b9
test r10, r10
je 0x4903b6
inc rdx
cmp r8, rdx
jae 0x4903ac
mov rax, rsi
mov rbx, rdx
mov rcx, r8
mov edi, 1
lea rsi, [0x00680cc0]
call fcn.004417e0
mov r10, qword [rsp + 0x60]
mov rdx, rbx
mov rsi, rax
mov r8, rcx
mov rax, qword [rsp + 0x78]
movzx ecx, byte [rsp + 0xb0]
mov rbx, qword [rsp + 0x48]
mov byte [rdx + rsi - 1], 0x2e
jmp 0x4907e0
test r9, r9
jle 0x490413
inc rdx
nop
cmp r8, rdx
jae 0x490407
mov rax, rsi
mov rbx, rdx
mov rcx, r8
mov edi, 1
lea rsi, [0x00680cc0]
call fcn.004417e0
mov r9, qword [rsp + 0xa8]
mov r10, qword [rsp + 0x60]
mov rdx, rbx
mov rsi, rax
mov r8, rcx
mov rax, qword [rsp + 0x78]
movzx ecx, byte [rsp + 0xb0]
mov rbx, qword [rsp + 0x48]
mov byte [rdx + rsi - 1], 0x2e
xor edi, edi
jmp 0x490740
nop
mov r9d, ecx
or ecx, 0x20
cmp r9b, cl
jne 0x490426
mov eax, 0x70
jmp 0x49042b
mov eax, 0x50
lea rbx, [rdx + 1]
cmp r8, rbx
jae 0x49045a
mov byte [rsp + 0x45], al
mov rax, rsi
mov rcx, r8
mov edi, 1
lea rsi, [0x00680cc0]
call fcn.004417e0
mov r8, rcx
mov rsi, rax
movzx eax, byte [rsp + 0x45]
mov byte [rbx + rsi - 1], al
mov rdx, qword [rsp + 0x68]
test rdx, rdx
jge 0x490472
neg rdx
mov eax, 0x2d
jmp 0x490477
mov eax, 0x2b
mov qword [rsp + 0x70], rdx
inc rbx
nop
cmp r8, rbx
jae 0x4904b5
mov byte [rsp + 0x45], al
mov rax, rsi
mov rcx, r8
mov edi, 1
lea rsi, [0x00680cc0]
nop dword [rax + rax]
call fcn.004417e0
mov rdx, qword [rsp + 0x70]
mov r8, rcx
mov rsi, rax
movzx eax, byte [rsp + 0x45]
mov byte [rbx + rsi - 1], al
nop dword [rax]
cmp rdx, 0x64
jge 0x490545
add rbx, 2
movabs rax, 0xcccccccccccccccd
mov rcx, rdx
imul rdx
add rdx, rcx
sar rdx, 3
mov r9, rcx
sar rcx, 0x3f
sub rdx, rcx
lea r10, [rdx + rdx*4]
shl r10, 1
sub r9, r10
cmp r8, rbx
jae 0x49052f
mov qword [rsp + 0x70], rdx
mov qword [rsp + 0x68], r9
mov rax, rsi
mov rcx, r8
mov edi, 2
lea rsi, [0x00680cc0]
call fcn.004417e0
mov rdx, qword [rsp + 0x70]
mov r9, qword [rsp + 0x68]
mov rsi, rax
mov r8, rcx
add edx, 0x30
mov byte [rbx + rsi - 2], dl
lea edx, [r9 + 0x30]
mov byte [rbx + rsi - 1], dl
nop
jmp 0x490714
cmp rdx, 0x3e8
jge 0x490619
add rbx, 3
movabs rax, 0xa3d70a3d70a3d70b
mov rcx, rdx
imul rdx
add rdx, rcx
movabs rax, 0xcccccccccccccccd
mov rdi, rdx
imul rcx
add rdx, rcx
mov r9, rdx
sar rdx, 3
movabs rax, 0xcccccccccccccccd
mov r10, rdx
imul rdx
add rdx, r10
sar rdx, 3
sar r9, 0x3f
sub rdx, r9
lea rdx, [rdx + rdx*4]
shl rdx, 1
mov r9, r10
sub r10, rdx
lea rdx, [r9 + r9*4]
shl rdx, 1
sub rcx, rdx
cmp r8, rbx
jae 0x4905fa
mov qword [rsp + 0x70], rcx
mov qword [rsp + 0x68], r10
mov qword [rsp + 0x58], rdi
mov rax, rsi
mov rcx, r8
mov edi, 3
lea rsi, [0x00680cc0]
nop
call fcn.004417e0
mov rdi, qword [rsp + 0x58]
mov r10, qword [rsp + 0x68]
mov rsi, rax
mov r8, rcx
mov rcx, qword [rsp + 0x70]
sar rdi, 6
lea edx, [rdi + 0x30]
mov byte [rbx + rsi - 3], dl
lea edx, [r10 + 0x30]
mov byte [rbx + rsi - 2], dl
lea edx, [rcx + 0x30]
mov byte [rbx + rsi - 1], dl
jmp 0x490714
movabs rax, 0xcccccccccccccccd
mov rcx, rdx
imul rdx
add rdx, rcx
mov r9, rdx
sar rdx, 3
lea r10, [rdx + rdx*4]
shl r10, 1
mov r11, rcx
sub rcx, r10
add rbx, 4
movabs rax, 0xa3d70a3d70a3d70b
mov rdi, rdx
imul r11
add rdx, r11
sar rdx, 6
movzx r10d, dl
imul r10d, r10d, 0x19a
shr r10d, 0xc
lea r10d, [r10 + r10*4]
shl r10d, 1
sub edx, r10d
movabs rax, 0xcccccccccccccccd
mov r10d, edx
imul rdi
add rdx, rdi
sar rdx, 3
sar r9, 0x3f
sub rdx, r9
lea rdx, [rdx + rdx*4]
shl rdx, 1
sub rdi, rdx
nop dword [rax]
cmp r8, rbx
jae 0x4906e6
mov byte [rsp + 0x47], r10b
mov qword [rsp + 0x68], rcx
mov qword [rsp + 0x58], rdi
mov rax, rsi
mov rcx, r8
mov edi, 4
lea rsi, [0x00680cc0]
call fcn.004417e0
mov rdi, qword [rsp + 0x58]
movzx r10d, byte [rsp + 0x47]
mov r11, qword [rsp + 0x70]
mov rsi, rax
mov r8, rcx
mov rcx, qword [rsp + 0x68]
movabs rax, 0x4189374bc6a7ef9e
imul r11
sar rdx, 8
add edx, 0x30
mov byte [rbx + rsi - 4], dl
lea edx, [r10 + 0x30]
mov byte [rbx + rsi - 3], dl
lea edx, [rdi + 0x30]
mov byte [rbx + rsi - 2], dl
lea edx, [rcx + 0x30]
mov byte [rbx + rsi - 1], dl
mov rax, rsi
mov rcx, r8
mov rbp, qword [rsp + 0x80]
add rsp, 0x88
ret
mov byte [rdx + rsi - 1], r10b
inc rdi
shl r11, 4
mov r10, r11
nop dword [rax]
cmp r9, rdi
jle 0x490413
mov r11, r10
shr r10, 0x3c
and r10d, 0xf
cmp rbx, r10
jbe 0x4907c7
inc rdx
movzx r10d, byte [rax + r10]
cmp r8, rdx
jae 0x49072a
mov qword [rsp + 0x50], rdi
mov byte [rsp + 0x46], r10b
mov qword [rsp + 0x60], r11
mov rax, rsi
mov rbx, rdx
mov rcx, r8
mov edi, 1
lea rsi, [0x00680cc0]
call fcn.004417e0
mov rdi, qword [rsp + 0x50]
mov r9, qword [rsp + 0xa8]
movzx r10d, byte [rsp + 0x46]
mov r11, qword [rsp + 0x60]
mov rdx, rbx
mov rsi, rax
mov r8, rcx
mov rax, qword [rsp + 0x78]
movzx ecx, byte [rsp + 0xb0]
mov rbx, qword [rsp + 0x48]
jmp 0x49072a
mov rax, r10
mov rcx, rbx
call fcn.00457d40
mov byte [rdx + rsi - 1], r10b
shl r9, 4
mov r10, r9
nop
test r10, r10
je 0x490413
mov r9, r10
shr r10, 0x3c
and r10d, 0xf
cmp rbx, r10
jbe 0x490852
inc rdx
movzx r10d, byte [rax + r10]
cmp r8, rdx
jae 0x4907d2
mov qword [rsp + 0x60], r9
mov byte [rsp + 0x46], r10b
mov rax, rsi
mov rbx, rdx
mov rcx, r8
mov edi, 1
lea rsi, [0x00680cc0]
call fcn.004417e0
mov r9, qword [rsp + 0x60]
movzx r10d, byte [rsp + 0x46]
mov rdx, rbx
mov rsi, rax
mov r8, rcx
mov rax, qword [rsp + 0x78]
movzx ecx, byte [rsp + 0xb0]
mov rbx, qword [rsp + 0x48]
jmp 0x4907d2
mov rax, r10
mov rcx, rbx
call fcn.00457d40
nop
mov qword [rsp + 8], rax
mov qword [rsp + 0x10], rbx
mov qword [rsp + 0x18], rcx
mov qword [rsp + 0x20], rdi
mov byte [rsp + 0x28], sil
mov byte [rsp + 0x29], r8b
mov qword [rsp + 0x30], r9
mov qword [rsp + 0x38], r10
mov qword [rsp + 0x40], r11
call fcn.004556c0
mov rax, qword [rsp + 8]
mov rbx, qword [rsp + 0x10]
mov rcx, qword [rsp + 0x18]
mov rdi, qword [rsp + 0x20]
movzx esi, byte [rsp + 0x28]
movzx r8d, byte [rsp + 0x29]
mov r9, qword [rsp + 0x30]
mov r10, qword [rsp + 0x38]
mov r11, qword [rsp + 0x40]
nop
jmp fcn.00490120