user: Please show me the C implementation that matches the assembly code listed below:

```asm
<stl3_interp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  mov    %r8,-0x48(%rbp)
  mov    %r9,-0x50(%rbp)
  mov    -0x40(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x50(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x14(%rbp)
  movl   $0x0,-0x1c(%rbp)
  movl   $0x0,-0x20(%rbp)
  jmp    L15
L20:
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x1c(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jle    L29
  addl   $0x1,-0x1c(%rbp)
L29:
  mov    -0x1c(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    -0x1c(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rdx),%edx
  sub    %edx,%eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    -0x1c(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rdx),%edx
  sub    %edx,%eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  divsd  -0x10(%rbp),%xmm0
  movsd  %xmm0,-0x8(%rbp)
  movsd  -0x8(%rbp),%xmm0
  addsd  %xmm0,%xmm0
  mulsd  -0x8(%rbp),%xmm0
  mulsd  -0x8(%rbp),%xmm0
  movsd  -0x8(%rbp),%xmm2
  movsd  D26(%rip),%xmm1
  mulsd  %xmm2,%xmm1
  movapd %xmm1,%xmm2
  mulsd  -0x8(%rbp),%xmm2
  movapd %xmm0,%xmm1
  subsd  %xmm2,%xmm1
  movsd  D22(%rip),%xmm0
  addsd  %xmm0,%xmm1
  mov    -0x1c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movapd %xmm1,%xmm2
  mulsd  %xmm0,%xmm2
  movsd  -0x8(%rbp),%xmm1
  movsd  D26(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x8(%rbp),%xmm1
  movsd  -0x8(%rbp),%xmm0
  addsd  %xmm0,%xmm0
  mulsd  -0x8(%rbp),%xmm0
  mulsd  -0x8(%rbp),%xmm0
  subsd  %xmm0,%xmm1
  mov    -0x1c(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  addsd  %xmm0,%xmm2
  movsd  -0x8(%rbp),%xmm0
  mulsd  %xmm0,%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x8(%rbp),%xmm1
  movsd  -0x8(%rbp),%xmm0
  addsd  %xmm0,%xmm0
  movapd %xmm0,%xmm3
  mulsd  -0x8(%rbp),%xmm3
  subsd  %xmm3,%xmm1
  movapd %xmm1,%xmm0
  movapd %xmm0,%xmm1
  addsd  -0x8(%rbp),%xmm1
  mov    -0x1c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  -0x10(%rbp),%xmm0
  addsd  %xmm0,%xmm2
  movsd  -0x8(%rbp),%xmm0
  mulsd  %xmm0,%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x8(%rbp),%xmm1
  movsd  -0x8(%rbp),%xmm0
  mulsd  %xmm0,%xmm0
  subsd  %xmm0,%xmm1
  mov    -0x1c(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  -0x10(%rbp),%xmm0
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x10(%rbp),%rax
  add    %rdx,%rax
  addsd  %xmm2,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x20(%rbp)
L15:
  mov    -0x20(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jl     L20
  nop
  nop
  pop    %rbp
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D26
type_guessed: byte[8]
name: extract_symbolic_data
arguments: data_tag: D22
type_guessed: byte[8]

tool: {"D26": [0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x40]}

tool: {"D22": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0x3f]}

assistant: ```c
void stl3_interp(int *x_l, double *f_x, double *f_x_p, int *nn, int *x, int *NN, double *y) {
  int i, j, n, N;
  double u, h;
  n = *nn;
  N = *NN;
  j = 0;
  for (i = 0; i < N; ++i) {
    if (*(x + i) > *(x_l + j + 1))
      j++;
    h = (*(x_l + j + 1) - *(x_l + j));
    u = (*(x + i) - *(x_l + j)) / h;
    *(y + i) = (2 * u * u * u - 3 * u * u + 1) * *(f_x + j) + (3 * u * u - 2 * u * u * u) * *(f_x + j + 1) + (u * u * u - 2 * u * u + u) * *(f_x_p + j) * h + (u * u * u - u * u) * *(f_x_p + j + 1) * h;
  }
}
```