user: Demonstrate the C code that generates the assembly output below:

```asm
<rftbsub>:
  endbr64
  push   %r13
  pxor   %xmm0,%xmm0
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  lea    0x20(%r12),%rbp
  push   %rbx
  movslq %edi,%rbx
  cvtsi2ss %ebx,%xmm0
  sub    $0x28,%rsp
  movss  D27(%rip),%xmm1
  divss  %xmm0,%xmm1
  movaps %xmm1,%xmm0
  movss  %xmm1,0x14(%rsp)
  call   <cos@plt>
  pxor   %xmm3,%xmm3
  movss  0x14(%rsp),%xmm0
  cvtsi2ss %rax,%xmm3
  movss  %xmm3,0x8(%rsp)
  call   <sin@plt>
  pxor   %xmm4,%xmm4
  mov    %ebx,%esi
  pxor   %xmm2,%xmm2
  cvtsi2ss %rax,%xmm4
  movss  0x8(%rsp),%xmm3
  sar    %esi
  movaps %xmm2,%xmm7
  movss  D45(%rip),%xmm1
  movss  D30(%rip),%xmm6
  mulss  %xmm4,%xmm3
  mulss  %xmm4,%xmm4
  movaps %xmm3,%xmm5
  movaps %xmm4,%xmm0
  addss  %xmm3,%xmm5
  addss  %xmm4,%xmm0
  movss  %xmm5,0x1c(%rsp)
  addss  %xmm5,%xmm5
  subss  %xmm0,%xmm1
  movss  %xmm1,0x18(%rsp)
  nopl   0x0(%rax)
L15:
  lea    -0x100(%rsi),%r13d
  mov    $0x4,%eax
  lea    -0x4(%rsi),%ecx
  cmp    %eax,%r13d
  cmovl  %eax,%r13d
  cmp    %ecx,%r13d
  jg     L8
  movslq %ecx,%rax
  mov    %rbx,%rdi
  sub    %r13,%rcx
  movslq %esi,%r8
  sub    %rax,%rdi
  lea    (%r12,%rax,4),%rdx
  and    $0xfffffffc,%ecx
  lea    (%r12,%rdi,4),%rax
  mov    %rbx,%rdi
  sub    %r8,%rdi
  add    %rdi,%rcx
  lea    0x0(%rbp,%rcx,4),%rcx
  nopw   0x0(%rax,%rax,1)
L25:
  movss  0x8(%rdx),%xmm9
  movss  0xc(%rdx),%xmm8
  add    $0x10,%rax
  sub    $0x10,%rdx
  movss  -0x14(%rax),%xmm0
  movaps %xmm9,%xmm10
  subss  -0x18(%rax),%xmm10
  addss  %xmm8,%xmm0
  movaps %xmm10,%xmm1
  mulss  %xmm4,%xmm1
  movaps %xmm0,%xmm11
  mulss  %xmm3,%xmm11
  mulss  %xmm3,%xmm10
  mulss  %xmm4,%xmm0
  addss  %xmm11,%xmm1
  subss  %xmm10,%xmm0
  subss  %xmm1,%xmm9
  subss  %xmm0,%xmm8
  movss  %xmm9,0x18(%rdx)
  movss  %xmm8,0x1c(%rdx)
  addss  -0x18(%rax),%xmm1
  movss  %xmm1,-0x18(%rax)
  movss  -0x14(%rax),%xmm1
  subss  %xmm0,%xmm1
  movaps %xmm5,%xmm0
  mulss  %xmm3,%xmm0
  movss  %xmm1,-0x14(%rax)
  movss  0x10(%rdx),%xmm9
  movss  0x14(%rdx),%xmm8
  movaps %xmm9,%xmm10
  subss  -0x10(%rax),%xmm10
  addss  %xmm0,%xmm7
  movaps %xmm6,%xmm0
  subss  %xmm4,%xmm0
  movaps %xmm7,%xmm1
  mulss  %xmm5,%xmm0
  mulss  %xmm10,%xmm1
  addss  %xmm0,%xmm2
  movss  -0xc(%rax),%xmm0
  addss  %xmm8,%xmm0
  mulss  %xmm2,%xmm10
  movaps %xmm2,%xmm11
  mulss  %xmm0,%xmm11
  mulss  %xmm7,%xmm0
  addss  %xmm11,%xmm1
  subss  %xmm10,%xmm0
  subss  %xmm1,%xmm9
  subss  %xmm0,%xmm8
  movss  %xmm9,0x10(%rdx)
  movss  %xmm8,0x14(%rdx)
  addss  -0x10(%rax),%xmm1
  movss  %xmm1,-0x10(%rax)
  movss  -0xc(%rax),%xmm1
  subss  %xmm0,%xmm1
  movaps %xmm5,%xmm0
  mulss  %xmm2,%xmm0
  movss  %xmm1,-0xc(%rax)
  addss  %xmm0,%xmm4
  movaps %xmm6,%xmm0
  subss  %xmm7,%xmm0
  mulss  %xmm5,%xmm0
  addss  %xmm0,%xmm3
  cmp    %rax,%rcx
  jne    L25
L8:
  movss  %xmm5,0x8(%rsp)
  cmp    $0x104,%esi
  jle    L16
  pxor   %xmm0,%xmm0
  cvtsi2ss %r13d,%xmm0
  mulss  0x14(%rsp),%xmm0
  movss  %xmm0,0x10(%rsp)
  call   <sin@plt>
  pxor   %xmm1,%xmm1
  movss  D30(%rip),%xmm6
  movss  0x10(%rsp),%xmm0
  cvtsi2ss %rax,%xmm1
  mulss  %xmm6,%xmm1
  movss  %xmm1,0xc(%rsp)
  call   <cos@plt>
  pxor   %xmm2,%xmm2
  mov    %r13d,%esi
  movss  D30(%rip),%xmm6
  cvtsi2ss %rax,%xmm2
  movss  0x18(%rsp),%xmm7
  movss  0x1c(%rsp),%xmm5
  movss  0xc(%rsp),%xmm1
  movaps %xmm6,%xmm4
  movaps %xmm7,%xmm0
  movaps %xmm5,%xmm3
  mulss  %xmm1,%xmm0
  mulss  %xmm6,%xmm2
  mulss  %xmm1,%xmm5
  mulss  %xmm2,%xmm3
  mulss  %xmm2,%xmm7
  subss  %xmm3,%xmm0
  movaps %xmm5,%xmm3
  movss  0x8(%rsp),%xmm5
  addss  %xmm7,%xmm3
  movaps %xmm6,%xmm7
  subss  %xmm1,%xmm7
  subss  %xmm0,%xmm4
  jmp    L15
  nop
L16:
  shl    $0x2,%rbx
  movq   0x8(%r12),%xmm2
  shufps $0xe0,%xmm4,%xmm4
  shufps $0xe0,%xmm3,%xmm3
  lea    -0x8(%r12,%rbx,1),%rax
  lea    -0x4(%r12,%rbx,1),%rdx
  movq   (%rax),%xmm0
  movaps %xmm2,%xmm5
  movaps %xmm0,%xmm1
  subps  %xmm0,%xmm5
  movss  0xc(%r12),%xmm0
  addss  (%rdx),%xmm0
  addps  %xmm2,%xmm1
  movss  %xmm5,%xmm1
  mulps  %xmm4,%xmm1
  movss  0x8(%r12),%xmm4
  subss  (%rax),%xmm4
  unpcklps %xmm4,%xmm0
  mulps  %xmm3,%xmm0
  movaps %xmm1,%xmm3
  subps  %xmm0,%xmm3
  addps  %xmm1,%xmm0
  movaps %xmm3,%xmm1
  shufps $0xe5,%xmm3,%xmm3
  movss  %xmm0,%xmm1
  subps  %xmm1,%xmm2
  movlps %xmm2,0x8(%r12)
  addss  (%rax),%xmm0
  movss  %xmm0,(%rax)
  movss  (%rdx),%xmm0
  subss  %xmm3,%xmm0
  movss  %xmm0,(%rdx)
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D27
type_guessed: byte[4]
name: unpack_data
arguments: data_label: D45
type_guessed: byte[4]
name: unpack_data
arguments: data_label: D30
type_guessed: f32

tool: {"D27": [0xdb,0x0f,0x49,0x40]}

tool: {"D45": [0x00,0x00,0x80,0x3f]}

tool: D30: 0.5

assistant: ```c
void rftbsub(int n, float *a) {
  int i, i0, j, k;
  float ec, w1r, w1i, wkr, wki, wdr, wdi, ss, xr, xi, yr, yi;
  ec = 2 * ((float)1.570796326794896619231321691639751442098584699687) / n;
  wkr = 0;
  wki = 0;
  wdi = (float)cos(ec);
  wdr = (float)sin(ec);
  wdi *= wdr;
  wdr *= wdr;
  w1r = 1 - 2 * wdr;
  w1i = 2 * wdi;
  ss = 2 * w1i;
  i = n >> 1;
  for (;;) {
    i0 = i - 4 * 64;
    if (i0 < 4) {
      i0 = 4;
    }
    for (j = i - 4; j >= i0; j -= 4) {
      k = n - j;
      xr = a[j + 2] - a[k - 2];
      xi = a[j + 3] + a[k - 1];
      yr = wdr * xr + wdi * xi;
      yi = wdr * xi - wdi * xr;
      a[j + 2] -= yr;
      a[j + 3] -= yi;
      a[k - 2] += yr;
      a[k - 1] -= yi;
      wkr += ss * wdi;
      wki += ss * (((float)0.5) - wdr);
      xr = a[j] - a[k];
      xi = a[j + 1] + a[k + 1];
      yr = wkr * xr + wki * xi;
      yi = wkr * xi - wki * xr;
      a[j] -= yr;
      a[j + 1] -= yi;
      a[k] += yr;
      a[k + 1] -= yi;
      wdr += ss * wki;
      wdi += ss * (((float)0.5) - wkr);
    }
    if (i0 == 4) {
      break;
    }
    wkr = ((float)0.5) * (float)sin(ec * i0);
    wki = ((float)0.5) * (float)cos(ec * i0);
    wdr = ((float)0.5) - (wkr * w1r - wki * w1i);
    wdi = wkr * w1i + wki * w1r;
    wkr = ((float)0.5) - wkr;
    i = i0;
  }
  xr = a[2] - a[n - 2];
  xi = a[3] + a[n - 1];
  yr = wdr * xr + wdi * xi;
  yi = wdr * xi - wdi * xr;
  a[2] -= yr;
  a[3] -= yi;
  a[n - 2] += yr;
  a[n - 1] -= yi;
}
```