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

```asm
<prepareBoundaries>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
  mov    %edx,-0x1c(%rbp)
  mov    %ecx,-0x20(%rbp)
  mov    %r8d,-0x24(%rbp)
  mov    %r9,-0x30(%rbp)
  mov    -0x18(%rbp),%eax
  sub    -0x14(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x30(%rbp),%rax
  mov    -0x14(%rbp),%edx
  mov    %edx,(%rax)
  mov    0x10(%rbp),%rax
  mov    -0x18(%rbp),%edx
  mov    %edx,(%rax)
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0x2,%eax
  mov    %eax,%edi
  call   <vrna_alloc@plt>
  mov    %rax,%rdx
  mov    0x18(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0x2,%eax
  mov    %eax,%edi
  call   <vrna_alloc@plt>
  mov    %rax,%rdx
  mov    0x20(%rbp),%rax
  mov    %rdx,(%rax)
  mov    0x18(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  shl    $0x2,%rax
  neg    %rax
  add    %rax,%rdx
  mov    0x18(%rbp),%rax
  mov    %rdx,(%rax)
  mov    0x20(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  shl    $0x2,%rax
  neg    %rax
  add    %rax,%rdx
  mov    0x20(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x14(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  jmp    L10
L49:
  mov    0x18(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rax,%rdx
  mov    -0x1c(%rbp),%eax
  mov    %eax,(%rdx)
  mov    0x20(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rax,%rdx
  mov    -0x20(%rbp),%eax
  mov    %eax,(%rdx)
  jmp    L45
L28:
  mov    0x18(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  add    $0x1,%edx
  mov    %edx,(%rax)
L45:
  mov    0x18(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  cmp    %eax,-0x24(%rbp)
  jg     L28
  mov    -0x24(%rbp),%eax
  cltd
  shr    $0x1f,%edx
  add    %edx,%eax
  and    $0x1,%eax
  sub    %edx,%eax
  mov    %eax,%ecx
  mov    0x18(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  cltd
  shr    $0x1f,%edx
  add    %edx,%eax
  and    $0x1,%eax
  sub    %edx,%eax
  cmp    %eax,%ecx
  je     L5
  mov    0x18(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  add    $0x1,%edx
  mov    %edx,(%rax)
L5:
  addl   $0x1,-0x8(%rbp)
L10:
  mov    -0x8(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jle    L49
  nop
  nop
  leave
  ret
```

assistant: ```c
void prepareBoundaries(int min_k_pre, int max_k_pre, int min_l_pre, int max_l_pre, int bpdist, int *min_k, int *max_k, int **min_l, int **max_l) {
  int cnt;
  int mem = max_k_pre - min_k_pre + 1;
  *min_k = min_k_pre;
  *max_k = max_k_pre;
  *min_l = (int *)vrna_alloc(sizeof(int) * mem);
  *max_l = (int *)vrna_alloc(sizeof(int) * mem);
  *min_l -= min_k_pre;
  *max_l -= min_k_pre;
  for (cnt = min_k_pre; cnt <= max_k_pre; cnt++) {
    (*min_l)[cnt] = min_l_pre;
    (*max_l)[cnt] = max_l_pre;
    while ((*min_l)[cnt] + cnt < bpdist)
      (*min_l)[cnt]++;
    if ((bpdist % 2) != (((*min_l)[cnt] + cnt) % 2))
      (*min_l)[cnt]++;
  }
}
```