Function at 0x490360
Capabilities:
Encode data using base64

Disassembly:
lea r12, [rsp - 8]
cmp r12, qword [r14 + 0x10]
jbe 0x4909a7
push rbp
mov rbp, rsp
add rsp, 0xffffffffffffff80
mov qword [rsp + 0x90], rax
mov rdx, qword [r11]
add rdx, 0xffffffffffffffc4
neg rdx
mov r11, rcx
mov rcx, rdx
mov r12, r9
shl r9, cl
test r12, r12
mov r12d, 0
cmove r10, r12
cmp rcx, 0x40
sbb rdx, rdx
and r9, rdx
jmp 0x4903b4
shl r9, 1
dec r10
test r9, r9
je 0x4903c2
bt r9, 0x3c
nop
jae 0x4903ae
cmp rdi, 0xf
jae 0x49043c
mov rcx, rdi
shl rcx, 2
mov rdx, r9
shl r9, cl
lea r12, [rcx - 0x3c]
neg r12
mov r13, rcx
mov rcx, r12
shr rdx, cl
cmp r13, 0x40
sbb r13, r13
and r13, r9
movabs r9, 0xfffffffffffffff
and r9, r13
cmp rcx, 0x40
sbb r13, r13
and rdx, r13
mov r15, rdx
and edx, 1
or r9, rdx
movabs rdx, 0x800000000000000
cmp rdx, r9
jae 0x490424
lea rdx, [r15 + 1]
jmp 0x490427
mov rdx, r15
shl rdx, cl
and rdx, r13
bt rdx, 0x3d
jae 0x490440
shr rdx, 1
inc r10
jmp 0x490440
mov rdx, r9
nop
cmp sil, 0x58
jne 0x49044f
lea rcx, [0x005119ba]
jmp 0x490456
lea rcx, [0x0051192a]
mov qword [rsp + 0xa8], rdi
mov byte [rsp + 0xb0], sil
mov qword [rsp + 0x68], r10
mov qword [rsp + 0x70], rcx
mov qword [rsp + 0x60], rdx
test r8b, r8b
je 0x4904c0
inc rbx
nop dword [rax]
cmp r11, rbx
jae 0x4904bb
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb520]
call fcn.00451be0
mov rdx, qword [rsp + 0x60]
movzx esi, byte [rsp + 0xb0]
mov rdi, qword [rsp + 0xa8]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
mov byte [rbx + rax - 1], 0x2d
add rbx, 3
cmp r11, rbx
jae 0x4904ff
mov rcx, r11
mov edi, 3
lea rsi, [0x004eb520]
call fcn.00451be0
mov rdx, qword [rsp + 0x60]
movzx esi, byte [rsp + 0xb0]
mov rdi, qword [rsp + 0xa8]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
mov byte [rbx + rax - 3], 0x30
mov byte [rbx + rax - 2], sil
mov r8, rdx
shr rdx, 0x3c
and edx, 1
add edx, 0x30
mov byte [rbx + rax - 1], dl
shl r8, 4
mov qword [rsp + 0x60], r8
test rdi, rdi
jge 0x490570
test r8, r8
je 0x49056d
inc rbx
cmp r11, rbx
jae 0x490563
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb520]
call fcn.00451be0
movzx esi, byte [rsp + 0xb0]
mov r8, qword [rsp + 0x60]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
mov byte [rbx + rax - 1], 0x2e
jmp 0x490941
test rdi, rdi
jle 0x4905ba
inc rbx
cmp r11, rbx
jae 0x4905b0
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb520]
call fcn.00451be0
movzx esi, byte [rsp + 0xb0]
mov rdi, qword [rsp + 0xa8]
mov r8, qword [rsp + 0x60]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
mov byte [rbx + rax - 1], 0x2e
jmp 0x4908ca
mov qword [rsp + 0x78], rax
mov qword [rsp + 0x58], rbx
mov qword [rsp + 0x50], r11
mov eax, esi
call fcn.0048e260
movzx ecx, byte [rsp + 0xb0]
cmp al, cl
jne 0x4905e3
mov eax, 0x70
jmp 0x4905e8
mov eax, 0x50
mov rbx, qword [rsp + 0x58]
inc rbx
mov rcx, qword [rsp + 0x50]
cmp rcx, rbx
jb 0x490602
mov rdx, qword [rsp + 0x78]
nop
jmp 0x490624
mov byte [rsp + 0x45], al
mov rax, qword [rsp + 0x78]
mov edi, 1
lea rsi, [0x004eb520]
call fcn.00451be0
mov rdx, rax
movzx eax, byte [rsp + 0x45]
mov byte [rbx + rdx - 1], al
mov r8, qword [rsp + 0x68]
test r8, r8
jge 0x49063c
neg r8
mov eax, 0x2d
jmp 0x490641
mov eax, 0x2b
inc rbx
cmp rcx, rbx
jae 0x490673
mov qword [rsp + 0x68], r8
mov byte [rsp + 0x45], al
mov rax, rdx
mov edi, 1
lea rsi, [0x004eb520]
call fcn.00451be0
mov r8, qword [rsp + 0x68]
mov rdx, rax
movzx eax, byte [rsp + 0x45]
mov byte [rbx + rdx - 1], al
cmp r8, 0x64
jge 0x4906f0
add rbx, 2
mov r9, r8
sar r8, 0x3f
movabs rax, 0xcccccccccccccccd
mov rsi, rdx
imul r9
add rdx, r9
sar rdx, 3
sub rdx, r8
lea r8, [rdx + rdx*4]
shl r8, 1
sub r9, r8
cmp rcx, rbx
jae 0x4906dc
mov qword [rsp + 0x68], rdx
mov qword [rsp + 0x58], r9
mov rax, rsi
mov edi, 2
lea rsi, [0x004eb520]
call fcn.00451be0
mov rdx, qword [rsp + 0x68]
mov r9, qword [rsp + 0x58]
mov rsi, rax
add edx, 0x30
mov byte [rbx + rsi - 2], dl
lea edx, [r9 + 0x30]
mov byte [rbx + rsi - 1], dl
jmp 0x4908b2
cmp r8, 0x3e8
jge 0x4907bc
add rbx, 3
movabs rax, 0xa3d70a3d70a3d70b
mov rsi, rdx
imul r8
movabs rax, 0xcccccccccccccccd
mov rdi, rdx
imul r8
add rdx, r8
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
lea r9, [r10 + r10*4]
shl r9, 1
lea r11, [r8 + rdi]
sub r10, rdx
sub r8, r9
cmp rcx, rbx
jae 0x49079b
mov qword [rsp + 0x68], r10
mov qword [rsp + 0x58], r8
mov qword [rsp + 0x50], r11
mov rax, rsi
mov edi, 3
lea rsi, [0x004eb520]
call fcn.00451be0
mov r8, qword [rsp + 0x58]
mov r10, qword [rsp + 0x68]
mov r11, qword [rsp + 0x50]
mov rsi, rax
sar r11, 6
lea edx, [r11 + 0x30]
mov byte [rbx + rsi - 3], dl
lea edx, [r10 + 0x30]
mov byte [rbx + rsi - 2], dl
lea edx, [r8 + 0x30]
mov byte [rbx + rsi - 1], dl
jmp 0x4908b2
add rbx, 4
movabs rax, 0xa3d70a3d70a3d70b
mov rsi, rdx
imul r8
add rdx, r8
sar rdx, 6
movzx r9d, dl
imul r9d, r9d, 0x19a
shr r9d, 0xc
lea r9d, [r9 + r9*4]
shl r9d, 1
movabs rax, 0xcccccccccccccccd
mov rdi, rdx
imul r8
add rdx, r8
mov r10, rdx
sar rdx, 3
movabs rax, 0xcccccccccccccccd
mov r11, rdx
imul rdx
add rdx, r11
sar rdx, 3
sar r10, 0x3f
sub rdx, r10
lea rdx, [rdx + rdx*4]
shl rdx, 1
lea r10, [r11 + r11*4]
shl r10, 1
movabs rax, 0x4189374bc6a7ef9e
mov r12, rdx
imul r8
sub edi, r9d
sub r11, r12
sub r8, r10
cmp rcx, rbx
jae 0x490890
mov qword [rsp + 0x68], r11
mov qword [rsp + 0x58], rdx
mov qword [rsp + 0x50], r8
mov byte [rsp + 0x47], dil
mov rax, rsi
mov edi, 4
lea rsi, [0x004eb520]
call fcn.00451be0
mov rdx, qword [rsp + 0x58]
movzx edi, byte [rsp + 0x47]
mov r8, qword [rsp + 0x50]
mov r11, qword [rsp + 0x68]
mov rsi, rax
sar rdx, 8
add edx, 0x30
mov byte [rbx + rsi - 4], dl
lea edx, [rdi + 0x30]
mov byte [rbx + rsi - 3], dl
lea edx, [r11 + 0x30]
mov byte [rbx + rsi - 2], dl
lea edx, [r8 + 0x30]
mov byte [rbx + rsi - 1], dl
mov rax, rsi
sub rsp, 0xffffffffffffff80
pop rbp
ret
mov byte [rbx + rax - 1], r8b
dec rdi
shl rdx, 4
mov r8, rdx
test rdi, rdi
jle 0x4905ba
inc rbx
mov rdx, r8
shr r8, 0x3c
and r8d, 0xf
movzx r8d, byte [rcx + r8]
cmp r11, rbx
jae 0x4908bb
mov qword [rsp + 0x48], rdi
mov byte [rsp + 0x46], r8b
mov qword [rsp + 0x60], rdx
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb520]
call fcn.00451be0
mov rdx, qword [rsp + 0x60]
movzx esi, byte [rsp + 0xb0]
mov rdi, qword [rsp + 0x48]
movzx r8d, byte [rsp + 0x46]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
jmp 0x4908bb
mov byte [rbx + rax - 1], r8b
shl rdx, 4
mov r8, rdx
test r8, r8
je 0x4905ba
inc rbx
mov rdx, r8
shr r8, 0x3c
and r8d, 0xf
movzx r8d, byte [rcx + r8]
nop dword [rax]
cmp r11, rbx
jae 0x490935
mov qword [rsp + 0x60], rdx
mov byte [rsp + 0x46], r8b
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb520]
nop
call fcn.00451be0
mov rdx, qword [rsp + 0x60]
movzx esi, byte [rsp + 0xb0]
movzx r8d, byte [rsp + 0x46]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
jmp 0x490935
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.0046b0a0
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]
jmp fcn.00490360