Function at 0x4c6600
Capabilities:
Encode data using base64

Disassembly:
lea r12, [rsp - 0x158]
cmp r12, qword [r14 + 0x10]
jbe 0x4c9076
push rbp
mov rbp, rsp
sub rsp, 0x1d0
mov qword [rsp + 0x1e8], rbx
mov qword [rsp + 0x1f0], rcx
mov rdx, qword [rax + 0x30]
mov r10, qword [rax + 0x38]
cmp qword [rax + 0x378], 1
nop dword [rax]
jne 0x4c66fe
test sil, sil
je 0x4c6659
mov rdi, rax
mov r8, rdx
mov rax, r10
jmp 0x4c6707
mov r11, qword [0x0061d068]
cmp rdi, r11
jae 0x4c906a
shl rdi, 5
mov r11, qword [0x0061d060]
mov r12, qword [r11 + rdi]
mov r13, qword [r11 + rdi + 0x10]
sub rdx, r13
mov r13, qword [r11 + rdi + 8]
mov r11, qword [r11 + rdi + 0x18]
lea rdx, [r12 + rdx]
lea rdx, [rdx - 1]
test r12, r12
je 0x4c9065
mov rdi, rax
mov rax, rdx
cmp r12, 0xffffffffffffffff
jne 0x4c66ae
neg rax
xor edx, edx
jmp 0x4c66b3
cqo
idiv r12
sub r10, r11
lea rdx, [r13 + r10]
lea rdx, [rdx - 1]
nop
test r13, r13
je 0x4c905d
mov r8, rax
mov rax, rdx
cmp r13, 0xffffffffffffffff
jne 0x4c66dc
neg rax
xor edx, edx
jmp 0x4c66e1
cqo
idiv r13
test r8, r8
je 0x4c66eb
test rax, rax
jne 0x4c6707
xor eax, eax
xor ebx, ebx
mov rcx, rax
mov rdi, rbx
add rsp, 0x1d0
pop rbp
ret
mov rdi, rax
mov r8, rdx
mov rax, r10
mov qword [rsp + 0x1c8], rdi
mov qword [rsp + 0x1f0], rcx
mov qword [rsp + 0x1e8], rbx
mov qword [rsp + 0xb0], r8
mov qword [rsp + 0xf0], rax
mov rdx, qword [rdi + 0x60]
dec rdx
nop word [rax + rax]
nop
cmp rdx, 0xe
ja 0x4c6eb4
mov byte [rsp + 0x200], sil
lea r9, [0x00564000]
jmp qword [r9 + rdx*8]
xor edx, edx
xor r9d, r9d
xor r10d, r10d
xor r11d, r11d
xor r12d, r12d
xor r13d, r13d
xor r15d, r15d
xor edx, edx
mov qword [rsp + 0x188], rdx
xor edx, edx
mov qword [rsp + 0x160], rdx
xor edx, edx
mov qword [rsp + 0x178], rdx
xor edx, edx
test sil, sil
jne 0x4c6fb4
mov qword [rsp + 0xe0], r15
mov qword [rsp + 0x170], r11
mov qword [rsp + 0x180], r12
mov qword [rsp + 0x198], rdx
mov qword [rsp + 0x168], r10
mov qword [rsp + 0x190], r13
lea rdx, [r9 + 7]
sar rdx, 0x3f
shr rdx, 0x3d
lea rdx, [r9 + rdx]
lea rdx, [rdx + 7]
mov qword [rsp + 0x158], rdx
imul r9, r8
lea rsi, [r9 + 7]
sar rsi, 0x3f
shr rsi, 0x3d
lea rcx, [rsi + r9]
lea rcx, [rcx + 7]
sar rcx, 3
inc rcx
mov qword [rsp + 0xb8], rcx
lea rax, [0x00509940]
mov rbx, rcx
call sym.runtime.makeslice
mov qword [rsp + 0x1c0], rax
mov rbx, qword [rsp + 0xb8]
mov rcx, rbx
lea rax, [0x00509940]
call sym.runtime.makeslice
mov rdx, qword [rsp + 0x158]
sar rdx, 3
mov qword [rsp + 0x100], rdx
xor ecx, ecx
mov rbx, qword [rsp + 0x1c0]
xor esi, esi
jmp 0x4c6fe5
mov rax, r15
mov rbx, qword [rsp + 0x188]
xor ecx, ecx
xor edi, edi
add rsp, 0x1d0
pop rbp
ret
mov rcx, qword [rsp + 0xc8]
inc rcx
mov rdx, qword [rsp + 0x100]
mov rbx, r12
mov rax, r10
mov r9, qword [rsp + 0xf0]
cmp rcx, r9
jge 0x4c7707
mov qword [rsp + 0x1a8], rax
mov qword [rsp + 0x1b8], rbx
mov qword [rsp + 0xc8], rcx
mov qword [rsp + 0xc0], rsi
nop
mov rax, qword [rsp + 0x1e8]
mov rcx, rbx
mov rdi, qword [rsp + 0xb8]
mov rsi, rdi
mov r8, rsi
mov rbx, qword [rsp + 0x1f0]
call sym.io.ReadAtLeast
nop dword [rax]
test rbx, rbx
jne 0x4c7656
mov r8, qword [rsp + 0xb8]
cmp r8, 1
jb 0x4c9051
lea rsi, [r8 - 1]
mov rcx, rsi
neg rsi
sar rsi, 0x3f
and esi, 1
mov r10, qword [rsp + 0x1b8]
lea rax, [r10 + rsi]
nop dword [rax + rax]
cmp r8, 1
jb 0x4c9045
mov qword [rsp + 0x158], rcx
mov qword [rsp + 0x1b0], rax
movzx r11d, byte [r10]
mov r12, qword [rsp + 0x1a8]
lea rdi, [r12 + rsi]
cmp r11b, 1
ja 0x4c70c9
test r11b, r11b
je 0x4c7133
mov rdx, qword [rsp + 0x100]
mov rbx, rdx
jmp 0x4c9015
cmp r11b, 2
jne 0x4c70d6
xor edx, edx
jmp 0x4c8fec
cmp r11b, 3
jne 0x4c70eb
mov r11, qword [rsp + 0x100]
xor edx, edx
jmp 0x4c8f4f
cmp r11b, 4
jne 0x4c763b
mov rbx, rcx
mov rsi, rcx
mov r8, rcx
mov r9, qword [rsp + 0x100]
call sym.image_png.filterPaeth
mov rax, qword [rsp + 0x1b0]
mov rcx, qword [rsp + 0x158]
mov r8, qword [rsp + 0xb8]
mov r10, qword [rsp + 0x1b8]
mov r12, qword [rsp + 0x1a8]
mov r11, qword [rsp + 0x1c8]
mov r13, qword [r11 + 0x60]
dec r13
cmp r13, 0xe
ja 0x4c7626
lea rdx, [0x00564080]
jmp qword [rdx + r13*8]
mov rdx, qword [rsp + 0x180]
mov rsi, qword [rsp + 0xc0]
jmp 0x4c6fcc
xor eax, eax
xor ebx, ebx
lea rcx, [0x00562be0]
lea rdi, [0x00562240]
add rsp, 0x1d0
pop rbp
ret
mov qword [rsp + 0x1a0], rcx
mov qword [rsp + 0xf8], rbx
cmp qword [0x0061ca50], rbx
je 0x4c7673
xor eax, eax
jmp 0x4c7698
mov rdx, qword [0x0061ca58]
mov rax, rbx
mov rbx, rcx
mov rcx, rdx
call sym.runtime.ifaceeq
mov rcx, qword [rsp + 0x1a0]
mov rbx, qword [rsp + 0xf8]
test al, al
jne 0x4c76d9
nop dword [rax]
cmp qword [0x0061ca60], rbx
je 0x4c76ad
xor eax, eax
jmp 0x4c76d5
mov rdx, qword [0x0061ca68]
mov rax, rbx
mov rbx, rcx
mov rcx, rdx
nop dword [rax]
call sym.runtime.ifaceeq
mov rcx, qword [rsp + 0x1a0]
mov rbx, qword [rsp + 0xf8]
test al, al
je 0x4c76f4
xor eax, eax
xor ebx, ebx
lea rcx, [0x00562be0]
lea rdi, [0x00562210]
add rsp, 0x1d0
pop rbp
ret
xor eax, eax
mov rdi, rcx
mov rcx, rbx
xor ebx, ebx
add rsp, 0x1d0
pop rbp
ret
mov rax, qword [rsp + 0xe0]
mov rbx, qword [rsp + 0x188]
xor ecx, ecx
xor edi, edi
add rsp, 0x1d0
pop rbp
ret
movzx r15d, byte [rdx + rdi]
shr r15b, 1
add r13d, r15d
mov byte [rax + rdx], r13b
inc rdx
cmp rdx, r11
jge 0x4c8f64
cmp rdx, rcx
jae 0x4c8fd5
movzx r13d, byte [rdx + rax]
nop
jb 0x4c8f3d
jmp 0x4c8fcd
mov rdx, r11
jmp 0x4c8f8a
movzx ebx, byte [r13 + rdi]
add rbx, r11
mov rsi, rbx
shr rbx, 0x3f
add rbx, rsi
sar rbx, 1
add r15d, ebx
mov byte [rax + r13], r15b
lea r11, [r13 + 1]
cmp r11, rcx
jge 0x4c7133
jae 0x4c8fc5
mov r13, r11
sub r11, rdx
movzx r15d, byte [r13 + rax]
cmp r11, rcx
jae 0x4c8fb8
movzx r11d, byte [r11 + rax]
cmp r13, rcx
jb 0x4c8f69
mov rax, r13
call sym.runtime.panicIndex
mov rax, r11
nop dword [rax + rax]
call sym.runtime.panicIndex
mov rax, r11
call sym.runtime.panicIndex
mov rax, rdx
call sym.runtime.panicIndex
mov rax, rdx
call sym.runtime.panicIndex
movzx r13d, byte [rdx + rax]
add r11d, r13d
mov byte [rax + rdx], r11b
inc rdx
cmp rdx, rcx
jge 0x4c7133
movzx r11d, byte [rdx + rdi]
jb 0x4c8fdd
mov rax, rdx
nop
call sym.runtime.panicIndex
movzx r15d, byte [rdx + rax]
add r13d, r15d
mov byte [rax + r11], r13b
lea rdx, [r11 + 1]
cmp rdx, rcx
jge 0x4c7133
nop
jae 0x4c903a
mov r11, rdx
sub rdx, rbx
movzx r13d, byte [r11 + rax]
cmp rdx, rcx
jb 0x4c9005
mov rax, rdx
call sym.runtime.panicIndex
mov rax, rdx
nop dword [rax]
call sym.runtime.panicIndex
mov eax, 1
xor ecx, ecx
call sym.runtime.panicSliceB
mov eax, 1
xor ecx, ecx
call sym.runtime.panicSliceB
nop dword [rax]
call sym.runtime.panicdivide
call sym.runtime.panicdivide
mov rax, rdi
mov rcx, r11
call sym.runtime.panicIndex
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
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]
jmp sym.image_png._decoder_.readImagePass