user: What is the c source code of the assembly code below:

```asm
<aegis128L_enc_aut_step>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  lea    0x70(%rbx),%r12
  lea    0x60(%rbx),%r13
  sub    $0x20,%rsp
  mov    0x20(%rbx),%rcx
  and    0x30(%rbx),%rcx
  mov    %fs:0x28,%rdx
  mov    %rdx,0x18(%rsp)
  xor    %edx,%edx
  mov    %rcx,(%rsi)
  mov    0x28(%rbx),%rdx
  mov    %rsp,%r14
  and    0x38(%rbx),%rdx
  mov    %rdx,0x8(%rsi)
  xor    0x10(%rbx),%rcx
  mov    %rcx,(%rsi)
  xor    0x18(%rbx),%rdx
  mov    %rdx,0x8(%rsi)
  xor    0x60(%rbx),%rcx
  mov    %rcx,(%rsi)
  xor    0x68(%rbx),%rdx
  mov    %rdx,0x8(%rsi)
  xor    (%rdi),%rcx
  mov    %rcx,(%rsi)
  xor    0x8(%rdi),%rdx
  mov    %rdx,0x8(%rsi)
  mov    0x60(%rbx),%rcx
  and    0x70(%rbx),%rcx
  mov    %rcx,0x10(%rsi)
  mov    0x68(%rbx),%rdx
  and    0x78(%rbx),%rdx
  mov    %rdx,0x18(%rsi)
  xor    0x20(%rbx),%rcx
  mov    %rcx,0x10(%rsi)
  xor    0x28(%rbx),%rdx
  mov    %rdx,0x18(%rsi)
  xor    0x50(%rbx),%rcx
  mov    %rcx,0x10(%rsi)
  xor    0x58(%rbx),%rdx
  mov    %rdx,0x18(%rsi)
  xor    0x10(%rdi),%rcx
  mov    %rcx,0x10(%rsi)
  xor    0x18(%rdi),%rdx
  mov    %r14,%rdi
  mov    %rdx,0x18(%rsi)
  mov    %r12,%rsi
  mov    $0x10,%edx
  call   <memcpy@plt>
  mov    %r12,%rdx
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <AESROUND@plt>
  lea    0x50(%rbx),%r12
  mov    %r13,%rdx
  mov    %r13,%rdi
  mov    %r12,%rsi
  lea    0x40(%rbx),%r13
  call   <AESROUND@plt>
  mov    %r12,%rdx
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <AESROUND@plt>
  lea    0x30(%rbx),%r12
  mov    %r13,%rdx
  mov    %r13,%rdi
  mov    %r12,%rsi
  lea    0x20(%rbx),%r13
  call   <AESROUND@plt>
  mov    %r12,%rdx
  mov    %r12,%rdi
  mov    %r13,%rsi
  call   <AESROUND@plt>
  lea    0x10(%rbx),%r12
  mov    %r13,%rdx
  mov    %r13,%rdi
  mov    %r12,%rsi
  call   <AESROUND@plt>
  mov    %r12,%rdx
  mov    %rbx,%rsi
  mov    %r12,%rdi
  call   <AESROUND@plt>
  mov    %rbx,%rdx
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <AESROUND@plt>
  mov    0x0(%rbp),%rax
  xor    %rax,(%rbx)
  mov    0x8(%rbp),%rax
  xor    %rax,0x8(%rbx)
  mov    0x10(%rbp),%rax
  xor    %rax,0x40(%rbx)
  mov    0x18(%rbp),%rax
  xor    %rax,0x48(%rbx)
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L3:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void aegis128L_enc_aut_step(const unsigned char *plaintextblk, unsigned char *ciphertextblk, unsigned char *state) {
  unsigned char tmp[16];
  {
    ((unsigned long long *)(ciphertextblk))[0] = ((unsigned long long *)(state + 32))[0] & ((unsigned long long *)(state + 48))[0];
    ((unsigned long long *)(ciphertextblk))[1] = ((unsigned long long *)(state + 32))[1] & ((unsigned long long *)(state + 48))[1];
  };
  {
    ((unsigned long long *)(ciphertextblk))[0] = ((unsigned long long *)(ciphertextblk))[0] ^ ((unsigned long long *)(state + 16))[0];
    ((unsigned long long *)(ciphertextblk))[1] = ((unsigned long long *)(ciphertextblk))[1] ^ ((unsigned long long *)(state + 16))[1];
  };
  {
    ((unsigned long long *)(ciphertextblk))[0] = ((unsigned long long *)(ciphertextblk))[0] ^ ((unsigned long long *)(state + 96))[0];
    ((unsigned long long *)(ciphertextblk))[1] = ((unsigned long long *)(ciphertextblk))[1] ^ ((unsigned long long *)(state + 96))[1];
  };
  {
    ((unsigned long long *)(ciphertextblk))[0] = ((unsigned long long *)(ciphertextblk))[0] ^ ((unsigned long long *)(plaintextblk))[0];
    ((unsigned long long *)(ciphertextblk))[1] = ((unsigned long long *)(ciphertextblk))[1] ^ ((unsigned long long *)(plaintextblk))[1];
  };
  {
    ((unsigned long long *)(ciphertextblk + 16))[0] = ((unsigned long long *)(state + 96))[0] & ((unsigned long long *)(state + 112))[0];
    ((unsigned long long *)(ciphertextblk + 16))[1] = ((unsigned long long *)(state + 96))[1] & ((unsigned long long *)(state + 112))[1];
  };
  {
    ((unsigned long long *)(ciphertextblk + 16))[0] = ((unsigned long long *)(ciphertextblk + 16))[0] ^ ((unsigned long long *)(state + 32))[0];
    ((unsigned long long *)(ciphertextblk + 16))[1] = ((unsigned long long *)(ciphertextblk + 16))[1] ^ ((unsigned long long *)(state + 32))[1];
  };
  {
    ((unsigned long long *)(ciphertextblk + 16))[0] = ((unsigned long long *)(ciphertextblk + 16))[0] ^ ((unsigned long long *)(state + 80))[0];
    ((unsigned long long *)(ciphertextblk + 16))[1] = ((unsigned long long *)(ciphertextblk + 16))[1] ^ ((unsigned long long *)(state + 80))[1];
  };
  {
    ((unsigned long long *)(ciphertextblk + 16))[0] = ((unsigned long long *)(ciphertextblk + 16))[0] ^ ((unsigned long long *)(plaintextblk + 16))[0];
    ((unsigned long long *)(ciphertextblk + 16))[1] = ((unsigned long long *)(ciphertextblk + 16))[1] ^ ((unsigned long long *)(plaintextblk + 16))[1];
  };
  memcpy(tmp, state + 112, 16);
  AESROUND(state + 112, state + 96, state + 112);
  AESROUND(state + 96, state + 80, state + 96);
  AESROUND(state + 80, state + 64, state + 80);
  AESROUND(state + 64, state + 48, state + 64);
  AESROUND(state + 48, state + 32, state + 48);
  AESROUND(state + 32, state + 16, state + 32);
  AESROUND(state + 16, state + 0, state + 16);
  AESROUND(state + 0, tmp, state + 0);
  {
    ((unsigned long long *)(state))[0] = ((unsigned long long *)(state))[0] ^ ((unsigned long long *)(plaintextblk))[0];
    ((unsigned long long *)(state))[1] = ((unsigned long long *)(state))[1] ^ ((unsigned long long *)(plaintextblk))[1];
  };
  {
    ((unsigned long long *)(state + 64))[0] = ((unsigned long long *)(state + 64))[0] ^ ((unsigned long long *)(plaintextblk + 16))[0];
    ((unsigned long long *)(state + 64))[1] = ((unsigned long long *)(state + 64))[1] ^ ((unsigned long long *)(plaintextblk + 16))[1];
  };
}
```