user: 请将以下的汇编代码转换成C语言代码:

```asm
<dstsub>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x90,%rsp
  mov    %edi,-0x84(%rbp)
  mov    %rsi,-0x90(%rbp)
  pxor   %xmm1,%xmm1
  cvtsi2sdl -0x84(%rbp),%xmm1
  movsd  D52(%rip),%xmm0
  divsd  %xmm1,%xmm0
  movsd  %xmm0,-0x40(%rbp)
  movsd  D70(%rip),%xmm0
  movsd  %xmm0,-0x60(%rbp)
  movsd  D70(%rip),%xmm0
  movsd  %xmm0,-0x58(%rbp)
  mov    -0x40(%rbp),%rax
  movq   %rax,%xmm0
  call   <cos@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x38(%rbp)
  mov    -0x40(%rbp),%rax
  movq   %rax,%xmm0
  call   <sin@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x30(%rbp)
  movsd  -0x38(%rbp),%xmm0
  movapd %xmm0,%xmm1
  subsd  -0x30(%rbp),%xmm1
  movsd  D70(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,-0x50(%rbp)
  movsd  -0x38(%rbp),%xmm0
  movapd %xmm0,%xmm1
  addsd  -0x30(%rbp),%xmm1
  movsd  D70(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,-0x48(%rbp)
  movsd  -0x30(%rbp),%xmm0
  addsd  %xmm0,%xmm0
  movsd  %xmm0,-0x28(%rbp)
  mov    -0x84(%rbp),%eax
  sar    %eax
  mov    %eax,-0x68(%rbp)
  movl   $0x0,-0x74(%rbp)
L14:
  mov    -0x74(%rbp),%eax
  sub    $0xffffff80,%eax
  mov    %eax,-0x70(%rbp)
  mov    -0x68(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x70(%rbp)
  jl     L32
  mov    -0x68(%rbp),%eax
  sub    $0x2,%eax
  mov    %eax,-0x70(%rbp)
L32:
  mov    -0x74(%rbp),%eax
  add    $0x2,%eax
  mov    %eax,-0x6c(%rbp)
  jmp    L47
L43:
  mov    -0x84(%rbp),%eax
  sub    -0x6c(%rbp),%eax
  mov    %eax,-0x64(%rbp)
  mov    -0x64(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  -0x48(%rbp),%xmm0
  mov    -0x6c(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mulsd  -0x50(%rbp),%xmm1
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x20(%rbp)
  mov    -0x64(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x50(%rbp),%xmm1
  mov    -0x6c(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  -0x48(%rbp),%xmm0
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x18(%rbp)
  movsd  -0x28(%rbp),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x48(%rbp),%xmm1
  movsd  -0x60(%rbp),%xmm0
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x60(%rbp)
  movsd  -0x28(%rbp),%xmm0
  mulsd  -0x50(%rbp),%xmm0
  movsd  -0x58(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x58(%rbp)
  mov    -0x64(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  -0x58(%rbp),%xmm0
  mov    -0x6c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mulsd  -0x60(%rbp),%xmm1
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  mov    -0x64(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x60(%rbp),%xmm1
  mov    -0x6c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  -0x58(%rbp),%xmm0
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  movsd  -0x28(%rbp),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x58(%rbp),%xmm1
  movsd  -0x50(%rbp),%xmm0
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x50(%rbp)
  movsd  -0x28(%rbp),%xmm0
  mulsd  -0x60(%rbp),%xmm0
  movsd  -0x48(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x48(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x20(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x6c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x10(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x64(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x18(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x64(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x2,-0x6c(%rbp)
L47:
  mov    -0x6c(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jle    L43
  mov    -0x68(%rbp),%eax
  sub    $0x2,%eax
  cmp    %eax,-0x70(%rbp)
  je     L41
  pxor   %xmm0,%xmm0
  cvtsi2sdl -0x70(%rbp),%xmm0
  mulsd  -0x40(%rbp),%xmm0
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  call   <cos@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x50(%rbp)
  pxor   %xmm0,%xmm0
  cvtsi2sdl -0x70(%rbp),%xmm0
  mulsd  -0x40(%rbp),%xmm0
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  call   <sin@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x48(%rbp)
  movsd  -0x50(%rbp),%xmm0
  movapd %xmm0,%xmm1
  subsd  -0x48(%rbp),%xmm1
  movsd  D70(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,-0x60(%rbp)
  movsd  -0x50(%rbp),%xmm0
  movapd %xmm0,%xmm1
  addsd  -0x48(%rbp),%xmm1
  movsd  D70(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,-0x58(%rbp)
  movsd  -0x60(%rbp),%xmm0
  mulsd  -0x38(%rbp),%xmm0
  movsd  -0x58(%rbp),%xmm1
  mulsd  -0x30(%rbp),%xmm1
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x50(%rbp)
  movsd  -0x60(%rbp),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x30(%rbp),%xmm1
  movsd  -0x58(%rbp),%xmm0
  mulsd  -0x38(%rbp),%xmm0
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x48(%rbp)
  mov    -0x70(%rbp),%eax
  mov    %eax,-0x74(%rbp)
  jmp    L14
L41:
  nop
  mov    -0x68(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  -0x48(%rbp),%xmm0
  mov    -0x68(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mulsd  -0x50(%rbp),%xmm1
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x20(%rbp)
  mov    -0x68(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movapd %xmm0,%xmm1
  mulsd  -0x50(%rbp),%xmm1
  mov    -0x68(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  -0x48(%rbp),%xmm0
  mov    -0x68(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  addsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x68(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x20(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x68(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x68(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x90(%rbp),%rax
  add    %rdx,%rax
  movsd  D34(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  nop
  leave
  ret
```

tool_calls: name: unpack_data
arguments: data_tag: D52
type_guessed: f64
name: unpack_data
arguments: data_tag: D70
type_guessed: f64
name: unpack_data
arguments: data_tag: D34
type_guessed: f64

tool: D52: 1.5707963267948966

tool: D70: 0.5

tool: D34: 0.7071067811865476

assistant: ```c
void dstsub(int n, double *a) {
  int i, i0, j, k, m;
  double ec, w1r, w1i, wkr, wki, wdr, wdi, ss, xr, xi, yr, yi;
  ec = 1.570796326794896619231321691639751442098584699687 / n;
  wkr = 0.5;
  wki = 0.5;
  w1r = cos(ec);
  w1i = sin(ec);
  wdr = 0.5 * (w1r - w1i);
  wdi = 0.5 * (w1r + w1i);
  ss = 2 * w1i;
  m = n >> 1;
  i = 0;
  for (;;) {
    i0 = i + 2 * 64;
    if (i0 > m - 2) {
      i0 = m - 2;
    }
    for (j = i + 2; j <= i0; j += 2) {
      k = n - j;
      xr = wdi * a[k + 1] - wdr * a[j - 1];
      xi = wdr * a[k + 1] + wdi * a[j - 1];
      wkr -= ss * wdi;
      wki += ss * wdr;
      yr = wki * a[k] - wkr * a[j];
      yi = wkr * a[k] + wki * a[j];
      wdr -= ss * wki;
      wdi += ss * wkr;
      a[j - 1] = xr;
      a[j] = yr;
      a[k + 1] = xi;
      a[k] = yi;
    }
    if (i0 == m - 2) {
      break;
    }
    wdr = cos(ec * i0);
    wdi = sin(ec * i0);
    wkr = 0.5 * (wdr - wdi);
    wki = 0.5 * (wdr + wdi);
    wdr = wkr * w1r - wki * w1i;
    wdi = wkr * w1i + wki * w1r;
    i = i0;
  }
  xr = wdi * a[m + 1] - wdr * a[m - 1];
  a[m + 1] = wdr * a[m + 1] + wdi * a[m - 1];
  a[m - 1] = xr;
  a[m] *= 0.707106781186547524400844362104849039284835937688;
}
```