Function at 0x1800513a0
Capabilities:
Compute adler32 checksum

Disassembly:
mov qword [rsp + 0x18], rbx
mov qword [rsp + 0x20], rsi
push rdi
sub rsp, 0x20
mov rbx, rdx
mov rdi, rcx
test rcx, rcx
jne 0x1800513d9
test r8, r8
je 0x1800513c4
xor esi, esi
mov qword [r8], rsi
mov eax, 0xfffffffe
mov rbx, qword [rsp + 0x40]
mov rsi, qword [rsp + 0x48]
add rsp, 0x20
pop rdi
ret
xor esi, esi
mov qword [rsp + 0x30], rbp
mov qword [rcx + 0x88], rbx
mov qword [rcx + 0x98], r8
mov qword [rcx + 0x90], rsi
mov qword [rcx + 0xa0], rsi
mov qword [rcx + 0xb0], rbx
test r8, r8
je 0x18005140d
mov rax, qword [r8]
jmp 0x180051410
mov rax, rsi
mov ebp, dword [rsp + 0x58]
mov dword [rcx + 0xa8], ebp
mov qword [rcx + 0xb8], rax
mov qword [rcx + 0xc0], rsi
cmp qword [rcx], rsi
je 0x18005163a
cmp dword [rcx + 0x84], esi
jne 0x18005163a
mov ecx, dword [rcx + 0x80]
test ecx, ecx
je 0x180051450
cmp ebp, 4
jne 0x18005163a
test r8, r8
je 0x180051463
cmp qword [r8], rsi
je 0x180051463
test rbx, rbx
je 0x18005163f
mov qword [rsp + 0x38], r14
cmp ebp, 4
mov r14d, esi
sete r14b
mov eax, r14d
or eax, ecx
mov dword [rdi + 0x80], eax
cmp dword [rdi + 0x74], esi
jne 0x18005162a
cmp dword [rdi + 0x78], esi
jne 0x18005162a
mov rcx, rdi
call fcn.180050a10
test eax, eax
je 0x1800515ea
test dword [rdi + 0x10], 0x3000
je 0x1800515c5
test rbx, rbx
je 0x1800515c5
mov r11, qword [rdi + 0xb0]
movabs rax, 0x79baa6bb6398b6f7
mov r8d, dword [rdi + 0x20]
sub r11, rbx
mul r11
mov rax, r11
movzx ecx, r8w
sub rax, rdx
shr r8d, 0x10
shr rax, 1
mov r9, r11
add rax, rdx
shr rax, 0xc
imul rax, rax, 0x15b0
sub r9, rax
test r11, r11
je 0x1800515ba
nop
mov edx, esi
cmp r9, 7
jbe 0x18005156a
mov r10d, 7
nop
movzx eax, byte [rbx]
add r10d, 8
add ecx, eax
add edx, 8
movzx eax, byte [rbx + 1]
add r8d, ecx
add ecx, eax
movzx eax, byte [rbx + 2]
add r8d, ecx
add ecx, eax
movzx eax, byte [rbx + 3]
add r8d, ecx
add ecx, eax
movzx eax, byte [rbx + 4]
add r8d, ecx
add ecx, eax
movzx eax, byte [rbx + 5]
add r8d, ecx
add ecx, eax
movzx eax, byte [rbx + 6]
add r8d, ecx
add ecx, eax
movzx eax, byte [rbx + 7]
add r8d, ecx
add ecx, eax
add rbx, 8
add r8d, ecx
mov eax, r10d
cmp rax, r9
jb 0x180051510
mov eax, edx
cmp rax, r9
jae 0x180051585
movzx eax, byte [rbx]
inc edx
add ecx, eax
inc rbx
add r8d, ecx
mov eax, edx
cmp rax, r9
jb 0x180051571
mov eax, 0x80078071
mul ecx
shr edx, 0xf
imul eax, edx, 0xffff000f
add ecx, eax
mov eax, 0x80078071
mul r8d
shr edx, 0xf
imul eax, edx, 0xffff000f
add r8d, eax
sub r11, r9
mov r9d, 0x15b0
jne 0x180051500
shl r8d, 0x10
lea eax, [r8 + rcx]
mov dword [rdi + 0x20], eax
test ebp, ebp
je 0x18005162a
cmp dword [rdi + 0x28], esi
jne 0x18005162a
cmp qword [rdi + 0xb8], rsi
jne 0x18005162a
cmp dword [rdi + 0x74], esi
jne 0x18005162a
mov edx, ebp
mov rcx, rdi
call fcn.180050270
test eax, eax
jns 0x18005160a
mov eax, dword [rdi + 0x84]
mov r14, qword [rsp + 0x38]
mov rbp, qword [rsp + 0x30]
mov rbx, qword [rsp + 0x40]
mov rsi, qword [rsp + 0x48]
add rsp, 0x20
pop rdi
ret
mov dword [rdi + 0x78], r14d
cmp ebp, 3
jne 0x18005162a
lea rcx, [rdi + 0x192aa]
xor edx, edx
mov r8d, 0x20000
call sub.VCRUNTIME140.dll_memset
mov dword [rdi + 0x2c], esi
mov rcx, rdi
call fcn.1800512f0
mov dword [rdi + 0x84], eax
jmp 0x1800515f0
test r8, r8
je 0x180051642
mov qword [r8], rsi
mov dword [rdi + 0x84], 0xfffffffe
mov eax, 0xfffffffe
jmp 0x1800515f5