Function at 0x1801b6070
Capabilities:
Encode data using base64

Disassembly:
push rsi
push rdi
sub rsp, 0x28
mov rsi, rcx
test rdx, rdx
je 0x18019c17d
mov rdi, rdx
mov rax, rdx
shr rax, 0x3d
jne 0x18019c19b
lea rcx, [rdi*8]
call fcn.1801e4f08
mov rcx, qword [rsi]
mov qword [rsi], rax
test rcx, rcx
je 0x18019c04f
call fcn.1801e4f44
mov qword [rsi + 8], rdi
xor eax, eax
mov rcx, qword [rsi]
mov qword [rcx + rax*8], 0
inc rax
cmp rdi, rax
jne 0x18019c055
mov r8, qword [rsi + 0x10]
test r8, r8
je 0x18019c165
lea r10, [rsi + 0x10]
mov rcx, qword [r8 + 8]
mov rax, rdi
shr rax, 1
movabs rdx, 0x5555555555555555
and rdx, rax
mov rax, rdi
sub rax, rdx
movabs rdx, 0x3333333333333333
mov r9, rax
and r9, rdx
shr rax, 2
and rax, rdx
add rax, r9
mov rdx, rax
shr rdx, 4
add rdx, rax
movabs rax, 0xf0f0f0f0f0f0f0f
and rax, rdx
movabs r9, 0x101010101010101
imul r9, rax
shr r9, 0x38
cmp r9, 1
jbe 0x18019c171
cmp rcx, rdi
jb 0x18019c0f3
mov rax, rcx
xor edx, edx
div rdi
mov rcx, rdx
mov rax, qword [rsi]
mov qword [rax + rcx*8], r10
mov r10, qword [r8]
test r10, r10
je 0x18019c165
lea r11, [rdi - 1]
jmp 0x18019c139
mov rdx, qword [r10]
mov qword [r8], rdx
mov rdx, qword [rsi]
mov rdx, qword [rdx + rax*8]
mov rdx, qword [rdx]
mov qword [r10], rdx
mov rdx, qword [rsi]
mov rax, qword [rdx + rax*8]
mov qword [rax], r10
mov r10, r8
mov rax, rcx
mov r8, r10
mov r10, qword [r10]
mov rcx, rax
test r10, r10
je 0x18019c165
mov rax, qword [r10 + 8]
cmp r9d, 1
jbe 0x18019c16c
cmp rax, rdi
jb 0x18019c150
xor edx, edx
div rdi
mov rax, rdx
cmp rax, rcx
je 0x18019c128
mov rdx, qword [rsi]
cmp qword [rdx + rax*8], 0
jne 0x18019c108
mov qword [rdx + rax*8], r8
jmp 0x18019c12b
add rsp, 0x28
pop rdi
pop rsi
ret
and rax, r11
jmp 0x18019c150
lea rax, [rdi - 1]
and rcx, rax
jmp 0x18019c0f3
mov rcx, qword [rsi]
mov qword [rsi], 0
test rcx, rcx
je 0x18019c191
call fcn.1801e4f44
mov qword [rsi + 8], 0
jmp 0x18019c165
call fcn.180267d05
int3
push rsi
push rdi
push rbx
sub rsp, 0x20
mov rsi, rcx
cmp rdx, 1
je 0x1801b60b2
mov rdi, rdx
lea rax, [rdx - 1]
test rdx, rax
je 0x1801b6097
mov rcx, rdi
call fcn.1800f5d5b
mov rdi, rax
mov rbx, qword [rsi + 8]
cmp rdi, rbx
jbe 0x1801b60d5
mov rcx, rsi
mov rdx, rdi
add rsp, 0x20
pop rbx
pop rdi
pop rsi
jmp 0x18019c010
mov edi, 2
jmp 0x1801b6097
mov rcx, rdx
call fcn.1800f5d5b
cmp rdi, rax
cmovbe rdi, rax
cmp rdi, rbx
jb 0x1801b60a0
add rsp, 0x20
pop rbx
pop rdi
pop rsi
ret
jae 0x1801b60cd
mov rax, qword [rsi + 0x18]
test rax, rax
jns 0x1801b60f7
mov rcx, rax
shr rcx, 1
and eax, 1
or rax, rcx
cvtsi2ss xmm0, rax
addss xmm0, xmm0
jmp 0x1801b60fc
cvtsi2ss xmm0, rax
divss xmm0, dword [rsi + 0x20]
call fcn.180203dd8
cvttss2si rax, xmm0
mov rcx, rax
subss xmm0, dword [0x1803507c0]
cvttss2si rdx, xmm0
sar rcx, 0x3f
and rdx, rcx
or rdx, rax
cmp rbx, 3
jb 0x1801b60b9
mov rax, rbx
shr rax, 1
movabs rcx, 0x5555555555555555
and rcx, rax
mov rax, rbx
sub rax, rcx
movabs rcx, 0x3333333333333333
mov r8, rax
shr r8, 2
and rax, rcx
and r8, rcx
add r8, rax
mov rax, r8
shr rax, 4
add rax, r8
movabs rcx, 0xf0f0f0f0f0f0f0f
and rcx, rax
movabs rax, 0x101010101010101
imul rax, rcx
shr rax, 0x38
cmp eax, 1
ja 0x1801b60b9
lea rax, [rdx - 1]
bsr rcx, rax
xor ecx, 0x3f
neg cl
mov eax, 1
shl rax, cl
cmp rdx, 2
cmovb rax, rdx
jmp 0x1801b60c1