Function at 0x1400ec4e0
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 0x18], r8
mov qword [rsp + 8], rcx
push rbx
push rbp
push rsi
push rdi
push r13
push r15
sub rsp, 0x78
mov rbx, rdx
movaps xmmword [rsp + 0x50], xmm6
mov rdx, qword [rdx + 0x28]
xorps xmm6, xmm6
movaps xmmword [rsp + 0x40], xmm7
movaps xmmword [rsp + 0x30], xmm8
xorps xmm8, xmm8
mov rax, qword [rbx + 0x38]
sub rax, qword [rbx + 0x10]
movzx edi, byte [rdx]
add rax, rdx
mov qword [rsp + 0x20], rax
cmp dil, 0x2d
jne 0x1400ec549
mov rcx, rbx
call fcn.1400eaad0
mov rdx, qword [rbx + 0x28]
mov r13b, 1
mov rcx, qword [rsp + 0xb0]
movzx edi, byte [rdx]
jmp 0x1400ec54c
xor r13b, r13b
movsd xmm7, qword [0x140504d08]
xor ebp, ebp
mov qword [rsp + 0x70], r12
mov esi, ebp
mov byte [rsp + 0xb8], sil
mov r15d, ebp
mov byte [rsp + 0xc8], r13b
mov qword [rsp + 0x68], r14
cmp dil, 0x30
jne 0x1400ec592
mov rcx, rbx
mov r14d, ebp
call fcn.1400eaad0
mov rdx, qword [rbx + 0x28]
xor r12b, r12b
jmp 0x1400ec720
lea eax, [rdi - 0x31]
cmp al, 8
ja 0x1400ecb99
mov rcx, rbx
call fcn.1400eaad0
mov rax, qword [rbx + 0x28]
movsx r14d, dil
sub r14d, 0x30
movzx edi, byte [rax]
test r13b, r13b
je 0x1400ec608
cmp dil, 0x30
jl 0x1400ec65c
cmp dil, 0x39
jg 0x1400ec65c
cmp r14d, 0xccccccc
jb 0x1400ec5de
jne 0x1400ec651
cmp dil, 0x38
jg 0x1400ec651
mov rcx, rbx
call fcn.1400eaad0
movsx eax, dil
lea r14d, [r14 + r14*4]
lea r14d, [r14 - 0x18]
inc r15d
lea r14d, [rax + r14*2]
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x1400ec5c3
jmp 0x1400ec65c
cmp dil, 0x30
jl 0x1400ec65c
nop
cmp dil, 0x39
jg 0x1400ec65c
cmp r14d, 0x19999999
jb 0x1400ec627
jne 0x1400ec651
cmp dil, 0x35
jg 0x1400ec651
mov rcx, rbx
call fcn.1400eaad0
movsx eax, dil
lea r14d, [r14 + r14*4]
lea r14d, [r14 - 0x18]
inc r15d
lea r14d, [rax + r14*2]
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x1400ec610
jmp 0x1400ec65c
mov byte [rsp + 0xb8], 1
mov esi, r14d
xor r12b, r12b
mov rdx, rax
cmp byte [rsp + 0xb8], bpl
je 0x1400ec6d2
movzx ecx, byte [rax]
test r13b, r13b
je 0x1400ec80e
cmp cl, 0x30
jl 0x1400ec6d2
movzx edi, cl
movabs r13, 0xccccccccccccccc
nop word [rax + rax]
cmp dil, 0x39
jg 0x1400ec6d2
cmp rsi, r13
jb 0x1400ec6ab
jne 0x1400ec7d9
cmp dil, 0x38
jg 0x1400ec7d9
mov rcx, rbx
call fcn.1400eaad0
mov rdx, qword [rbx + 0x28]
lea rax, [rsi + rsi*4]
movsx ecx, dil
inc r15d
sub ecx, 0x30
movzx edi, byte [rdx]
lea rsi, [rcx + rax*2]
cmp dil, 0x30
jge 0x1400ec690
mov rax, rdx
test r12b, r12b
je 0x1400ec720
cmp byte [rax], 0x30
mov rdx, rax
jl 0x1400ec720
movzx edi, byte [rax]
mov rdx, rax
cmp dil, 0x39
jg 0x1400ec720
mov rcx, rbx
call fcn.1400eaad0
mov rdx, qword [rbx + 0x28]
movsx eax, dil
sub eax, 0x30
mulsd xmm6, xmm7
movzx edi, byte [rdx]
movd xmm0, eax
mov rax, rdx
cvtdq2pd xmm0, xmm0
addsd xmm0, xmm6
movaps xmm6, xmm0
cmp dil, 0x30
jge 0x1400ec6e5
cmp byte [rdx], 0x2e
mov r13d, ebp
jne 0x1400ec8c3
mov rcx, rbx
call fcn.1400eaad0
mov rcx, qword [rbx + 0x28]
movzx edi, byte [rcx]
lea eax, [rdi - 0x30]
cmp al, 9
ja 0x1400ec95b
test r12b, r12b
jne 0x1400ec905
cmp byte [rsp + 0xb8], bpl
mov r8, rcx
mov eax, r14d
movabs r12, 0x1fffffffffffff
cmovne rax, rsi
mov rsi, rax
nop
mov r9, rcx
mov rdx, r8
cmp dil, 0x39
jg 0x1400ec7bf
cmp rsi, r12
ja 0x1400ec7bf
mov rcx, rbx
call fcn.1400eaad0
movsx ecx, dil
lea rax, [rsi + rsi*4]
sub ecx, 0x30
dec r13d
lea rsi, [rcx + rax*2]
mov rcx, qword [rbx + 0x28]
test rsi, rsi
lea eax, [r15 + 1]
mov r8, rcx
mov r9, rcx
cmove eax, r15d
mov rdx, rcx
movzx edi, byte [rcx]
mov r15d, eax
cmp dil, 0x30
jge 0x1400ec770
movzx edi, byte [r9]
xorps xmm6, xmm6
test rsi, rsi
js 0x1400ec8a2
cvtsi2sd xmm6, rsi
jmp 0x1400ec8ba
xorps xmm6, xmm6
test rsi, rsi
js 0x1400ec7ee
cvtsi2sd xmm6, rsi
mov r12b, 1
jmp 0x1400ec6d2
mov rax, rsi
mov rcx, rsi
shr rcx, 1
and eax, 1
or rcx, rax
mov r12b, 1
cvtsi2sd xmm6, rcx
addsd xmm6, xmm6
jmp 0x1400ec6d2
cmp cl, 0x30
jl 0x1400ec6d2
movzx edi, cl
movabs r13, 0x1999999999999999
cmp dil, 0x39
jg 0x1400ec6d2
cmp rsi, r13
jb 0x1400ec83b
jne 0x1400ec867
cmp dil, 0x35
jg 0x1400ec867
mov rcx, rbx
call fcn.1400eaad0
mov rdx, qword [rbx + 0x28]
lea rax, [rsi + rsi*4]
movsx ecx, dil
inc r15d
sub ecx, 0x30
movzx edi, byte [rdx]
lea rsi, [rcx + rax*2]
cmp dil, 0x30
jge 0x1400ec824
jmp 0x1400ec720
xorps xmm6, xmm6
test rsi, rsi
js 0x1400ec87f
cvtsi2sd xmm6, rsi
mov r12b, 1
mov rax, rdx
jmp 0x1400ec6da
mov rax, rsi
mov rcx, rsi
and eax, 1
shr rcx, 1
or rcx, rax
mov r12b, 1
mov rax, rdx
cvtsi2sd xmm6, rcx
addsd xmm6, xmm6
jmp 0x1400ec6da
mov rax, rsi
mov rcx, rsi
shr rcx, 1
and eax, 1
or rcx, rax
cvtsi2sd xmm6, rcx
addsd xmm6, xmm6
mov r12b, 1
cmp dil, 0x30
jge 0x1400ec908
movzx eax, byte [rdx]
sub al, 0x45
test al, 0xdf
jne 0x1400eca68
mov rcx, rbx
call fcn.1400eaad0
test r12b, r12b
jne 0x1400ec992
cmp byte [rsp + 0xb8], bpl
mov rcx, rsi
mov eax, r14d
xorps xmm6, xmm6
cmove rcx, rax
test rcx, rcx
js 0x1400ec97a
cvtsi2sd xmm6, rcx
jmp 0x1400ec98f
mov rdx, rcx
cmp dil, 0x39
jg 0x1400ec8c3
cmp r15d, 0x11
jge 0x1400ec941
mulsd xmm6, xmm7
dec r13d
movsx eax, dil
sub eax, 0x30
movd xmm0, eax
lea eax, [r15 + 1]
cvtdq2pd xmm0, xmm0
addsd xmm0, xmm6
comisd xmm0, xmm8
movaps xmm6, xmm0
cmovbe eax, r15d
mov r15d, eax
mov rcx, rbx
call fcn.1400eaad0
mov rdx, qword [rbx + 0x28]
movzx edi, byte [rdx]
cmp dil, 0x30
jge 0x1400ec908
jmp 0x1400ec8c3
mov rax, qword [rbx + 0x38]
sub rax, qword [rbx + 0x10]
add rax, rcx
mov rcx, qword [rsp + 0xb0]
mov dword [rcx + 0x30], 0xe
jmp 0x1400ecbab
mov rax, rcx
and ecx, 1
shr rax, 1
or rax, rcx
cvtsi2sd xmm6, rax
addsd xmm6, xmm6
mov r12b, 1
mov rcx, qword [rbx + 0x28]
xor r15b, r15b
movzx edi, byte [rcx]
cmp dil, 0x2b
jne 0x1400ec9ac
mov rcx, rbx
call fcn.1400eaad0
jmp 0x1400ec9bd
cmp dil, 0x2d
jne 0x1400ec9c4
mov rcx, rbx
call fcn.1400eaad0
mov r15b, 1
mov rcx, qword [rbx + 0x28]
movzx edi, byte [rcx]
lea eax, [rdi - 0x30]
cmp al, 9
ja 0x1400ecb0c
mov rcx, rbx
call fcn.1400eaad0
mov rax, qword [rbx + 0x28]
movsx ebp, dil
sub ebp, 0x30
movzx edi, byte [rax]
test r15b, r15b
je 0x1400ecaae
lea ecx, [r13 + 0x7ffffff7]
mov eax, 0x66666667
imul ecx
mov r15d, edx
sar r15d, 2
mov eax, r15d
shr eax, 0x1f
add r15d, eax
cmp dil, 0x30
jl 0x1400eca66
cmp dil, 0x39
jg 0x1400eca66
mov rcx, rbx
call fcn.1400eaad0
lea ebp, [rbp + rbp*4]
movsx eax, dil
lea ebp, [rbp - 0x18]
lea ebp, [rax + rbp*2]
cmp ebp, r15d
jle 0x1400eca59
mov rax, qword [rbx + 0x28]
movzx ecx, byte [rax]
cmp cl, 0x30
jl 0x1400eca59
nop
cmp cl, 0x39
jg 0x1400eca59
mov rcx, rbx
call fcn.1400eaad0
mov rax, qword [rbx + 0x28]
movzx ecx, byte [rax]
cmp cl, 0x30
jge 0x1400eca40
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x1400eca12
neg ebp
test r12b, r12b
je 0x1400ecb2b
mov edx, ebp
movaps xmm0, xmm6
add edx, r13d
call fcn.140023050
comisd xmm0, xmmword [0x140504d90]
ja 0x1400ecaf3
cmp byte [rsp + 0xc8], 0
je 0x1400eca99
xorps xmm0, xmmword [0x1405051a0]
mov rcx, qword [rsp + 0xc0]
movaps xmm1, xmm0
call fcn.140026a80
jmp 0x1400ecb7f
mov r15d, 0x134
sub r15d, r13d
cmp dil, 0x30
jl 0x1400eca68
nop dword [rax]
cmp dil, 0x39
jg 0x1400eca68
mov rcx, rbx
call fcn.1400eaad0
lea ebp, [rbp + rbp*4]
movsx eax, dil
lea ebp, [rbp - 0x18]
lea ebp, [rax + rbp*2]
cmp ebp, r15d
jg 0x1400ecaf3
mov rax, qword [rbx + 0x28]
movzx edi, byte [rax]
cmp dil, 0x30
jge 0x1400ecac0
jmp 0x1400eca68
mov rcx, qword [rsp + 0xb0]
mov rax, qword [rsp + 0x20]
mov dword [rcx + 0x30], 0xd
jmp 0x1400ecbab
mov rax, qword [rbx + 0x38]
sub rax, qword [rbx + 0x10]
add rax, rcx
mov rcx, qword [rsp + 0xb0]
mov dword [rcx + 0x30], 0xf
jmp 0x1400ecbab
cmp byte [rsp + 0xb8], 0
mov rcx, qword [rsp + 0xc0]
je 0x1400ecb5f
cmp byte [rsp + 0xc8], 0
je 0x1400ecb55
not rsi
lea rdx, [rsi + 1]
call fcn.140026b70
jmp 0x1400ecb7f
mov rdx, rsi
call fcn.140026ae0
jmp 0x1400ecb7f
cmp byte [rsp + 0xc8], 0
je 0x1400ecb77
not r14d
lea edx, [r14 + 1]
call fcn.140026c30
jmp 0x1400ecb7f
mov edx, r14d
call fcn.140026bc0
test al, al
jne 0x1400ecbaf
mov rcx, qword [rsp + 0xb0]
mov rax, qword [rsp + 0x20]
mov dword [rcx + 0x30], 0x10
jmp 0x1400ecbab
mov rax, qword [rbx + 0x38]
sub rax, qword [rbx + 0x10]
add rax, rdx
mov dword [rcx + 0x30], 3
mov qword [rcx + 0x38], rax
mov r14, qword [rsp + 0x68]
mov r12, qword [rsp + 0x70]
movaps xmm6, xmmword [rsp + 0x50]
movaps xmm7, xmmword [rsp + 0x40]
movaps xmm8, xmmword [rsp + 0x30]
add rsp, 0x78
pop r15
pop r13
pop rdi
pop rsi
pop rbp
pop rbx
ret