Function at 0x478b20
Capabilities:
Encode data using base64

Disassembly:
cmp rsp, qword [r14 + 0x10]
jbe 0x479167
push rbp
mov rbp, rsp
sub rsp, 0x78
mov qword [rsp + 0x88], 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 0x478b6f
shl r9, 1
dec r10
test r9, r9
je 0x478b80
bt r9, 0x3c
jae 0x478b69
nop dword [rax + rax]
cmp rdi, 0xf
jae 0x478bfa
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 r9, r13
movabs r13, 0xfffffffffffffff
and r13, r9
cmp rcx, 0x40
sbb r9, r9
and rdx, r9
mov r15, rdx
and edx, 1
or r13, rdx
movabs rdx, 0x800000000000000
cmp rdx, r13
jae 0x478be2
lea rdx, [r15 + 1]
jmp 0x478be5
mov rdx, r15
shl rdx, cl
and rdx, r9
bt rdx, 0x3d
jae 0x478c00
shr rdx, 1
inc r10
jmp 0x478c00
mov rdx, r9
nop dword [rax]
cmp sil, 0x58
jne 0x478c0f
lea rcx, [0x00513424]
jmp 0x478c16
lea rcx, [0x00512ff4]
mov qword [rsp + 0xa0], rdi
mov byte [rsp + 0xa8], sil
mov qword [rsp + 0x68], r10
mov qword [rsp + 0x70], rcx
mov qword [rsp + 0x60], rdx
test r8b, r8b
je 0x478c80
inc rbx
nop dword [rax]
cmp r11, rbx
jae 0x478c7b
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov rdx, qword [rsp + 0x60]
movzx esi, byte [rsp + 0xa8]
mov rdi, qword [rsp + 0xa0]
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 0x478cbf
mov rcx, r11
mov edi, 3
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov rdx, qword [rsp + 0x60]
movzx esi, byte [rsp + 0xa8]
mov rdi, qword [rsp + 0xa0]
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 0x478d30
test r8, r8
je 0x478d2d
inc rbx
cmp r11, rbx
jae 0x478d23
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
movzx esi, byte [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 0x479106
test rdi, rdi
jle 0x478d7c
inc rbx
cmp r11, rbx
jae 0x478d70
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
movzx esi, byte [rsp + 0xa8]
mov rdi, qword [rsp + 0xa0]
mov r8, qword [rsp + 0x60]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
mov byte [rbx + rax - 1], 0x2e
xor edx, edx
jmp 0x479080
mov edx, esi
or esi, 0x20
cmp dl, sil
jne 0x478d8d
mov ecx, 0x70
jmp 0x478d92
mov ecx, 0x50
inc rbx
cmp r11, rbx
jae 0x478dbf
mov byte [rsp + 0x45], cl
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov r10, qword [rsp + 0x68]
mov r11, rcx
movzx ecx, byte [rsp + 0x45]
mov byte [rbx + rax - 1], cl
test r10, r10
jge 0x478dd2
neg r10
mov ecx, 0x2d
jmp 0x478dd7
mov ecx, 0x2b
inc rbx
cmp r11, rbx
jae 0x478e09
mov qword [rsp + 0x68], r10
mov byte [rsp + 0x45], cl
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov r10, qword [rsp + 0x68]
mov r11, rcx
movzx ecx, byte [rsp + 0x45]
mov byte [rbx + rax - 1], cl
cmp r10, 0x64
jge 0x478e8c
add rbx, 2
mov rcx, rax
movabs rax, 0xcccccccccccccccd
imul r10
mov r8, r10
sar r10, 0x3f
add rdx, r8
sar rdx, 3
sub rdx, r10
lea r9, [rdx + rdx*4]
shl r9, 1
sub r8, r9
cmp r11, rbx
jae 0x478e78
mov qword [rsp + 0x68], rdx
mov qword [rsp + 0x58], r8
mov rax, rcx
mov rcx, r11
mov edi, 2
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov rdx, qword [rsp + 0x68]
mov r8, qword [rsp + 0x58]
mov r11, rcx
mov rcx, rax
add edx, 0x30
mov byte [rbx + rcx - 2], dl
lea edx, [r8 + 0x30]
mov byte [rbx + rcx - 1], dl
jmp 0x479060
cmp r10, 0x3e8
jge 0x478f65
add rbx, 3
mov rcx, rax
movabs rax, 0xa3d70a3d70a3d70b
imul r10
movabs rax, 0xcccccccccccccccd
mov rsi, rdx
imul r10
add rdx, r10
mov r8, rdx
sar rdx, 3
movabs rax, 0xcccccccccccccccd
mov rdi, rdx
imul rdx
add rdx, rdi
sar rdx, 3
sar r8, 0x3f
sub rdx, r8
lea rdx, [rdx + rdx*4]
shl rdx, 1
lea r8, [rdi + rdi*4]
shl r8, 1
lea r9, [r10 + rsi]
sub rdi, rdx
sub r10, r8
nop dword [rax]
cmp r11, rbx
jae 0x478f40
mov qword [rsp + 0x68], rdi
mov qword [rsp + 0x58], r10
mov qword [rsp + 0x50], r9
mov rax, rcx
mov rcx, r11
mov edi, 3
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov rdi, qword [rsp + 0x68]
mov r9, qword [rsp + 0x50]
mov r10, qword [rsp + 0x58]
mov r11, rcx
mov rcx, rax
sar r9, 6
lea edx, [r9 + 0x30]
mov byte [rbx + rcx - 3], dl
lea edx, [rdi + 0x30]
mov byte [rbx + rcx - 2], dl
lea edx, [r10 + 0x30]
mov byte [rbx + rcx - 1], dl
nop dword [rax + rax]
jmp 0x479060
add rbx, 4
mov rcx, rax
movabs rax, 0xa3d70a3d70a3d70b
imul r10
add rdx, r10
sar rdx, 6
movzx r8d, dl
imul r8d, r8d, 0x19a
shr r8d, 0xc
lea r8d, [r8 + r8*4]
shl r8d, 1
movabs rax, 0xcccccccccccccccd
mov rsi, rdx
imul r10
add rdx, r10
mov r9, rdx
sar rdx, 3
movabs rax, 0xcccccccccccccccd
mov rdi, rdx
imul rdx
add rdx, rdi
sar rdx, 3
sar r9, 0x3f
sub rdx, r9
lea rdx, [rdx + rdx*4]
shl rdx, 1
lea r9, [rdi + rdi*4]
shl r9, 1
movabs rax, 0x4189374bc6a7ef9e
mov r12, rdx
imul r10
sub esi, r8d
sub rdi, r12
sub r10, r9
cmp r11, rbx
jae 0x47903f
mov qword [rsp + 0x68], rdx
mov qword [rsp + 0x58], r10
mov byte [rsp + 0x47], sil
mov qword [rsp + 0x50], rdi
mov rax, rcx
mov rcx, r11
mov edi, 4
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov rdx, qword [rsp + 0x68]
movzx esi, byte [rsp + 0x47]
mov rdi, qword [rsp + 0x50]
mov r10, qword [rsp + 0x58]
mov r11, rcx
mov rcx, rax
sar rdx, 8
add edx, 0x30
mov byte [rbx + rcx - 4], dl
lea edx, [rsi + 0x30]
mov byte [rbx + rcx - 3], dl
lea edx, [rdi + 0x30]
mov byte [rbx + rcx - 2], dl
lea edx, [r10 + 0x30]
mov byte [rbx + rcx - 1], dl
mov rax, rcx
mov rcx, r11
add rsp, 0x78
pop rbp
ret
mov byte [rbx + rax - 1], r8b
inc rdx
shl r9, 4
mov r8, r9
nop dword [rax + rax]
cmp rdi, rdx
jle 0x478d7c
inc rbx
mov r9, r8
shr r8, 0x3c
and r8d, 0xf
movzx r8d, byte [rcx + r8]
nop dword [rax]
cmp r11, rbx
jae 0x47906c
mov qword [rsp + 0x48], rdx
mov byte [rsp + 0x46], r8b
mov qword [rsp + 0x60], r9
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov rdx, qword [rsp + 0x48]
movzx esi, byte [rsp + 0xa8]
mov rdi, qword [rsp + 0xa0]
movzx r8d, byte [rsp + 0x46]
mov r9, qword [rsp + 0x60]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
jmp 0x47906c
mov byte [rbx + rax - 1], r8b
shl rdx, 4
mov r8, rdx
test r8, r8
je 0x478d7c
inc rbx
mov rdx, r8
shr r8, 0x3c
and r8d, 0xf
movzx r8d, byte [rcx + r8]
cmp r11, rbx
jae 0x4790fa
mov qword [rsp + 0x60], rdx
mov byte [rsp + 0x46], r8b
mov rcx, r11
mov edi, 1
lea rsi, [0x004eb3a0]
call sym.runtime.growslice
mov rdx, qword [rsp + 0x60]
movzx esi, byte [rsp + 0xa8]
movzx r8d, byte [rsp + 0x46]
mov r10, qword [rsp + 0x68]
mov r11, rcx
mov rcx, qword [rsp + 0x70]
jmp 0x4790fa
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 sym.runtime.morestack_noctxt.abi0
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 sym.strconv.fmtX