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

```asm
<reals_>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %rsi,%r13
  mov    %edx,%esi
  mov    %ecx,0x2c(%rsp)
  mov    %ecx,%eax
  neg    %eax
  cmovs  %ecx,%eax
  mov    %eax,0x10(%rsp)
  mov    %edx,%eax
  neg    %eax
  cmovs  %edx,%eax
  mov    %ecx,%edx
  imul   %eax,%edx
  test   %edx,%edx
  je     L39
  mov    %rdi,%r12
  mov    0x10(%rsp),%ebx
  imul   %eax,%ebx
  add    $0x2,%ebx
  mov    %ebx,%edx
  shr    $0x1f,%edx
  add    %ebx,%edx
  sar    %edx
  mov    %edx,0x14(%rsp)
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  D112(%rip),%xmm1
  divsd  %xmm0,%xmm1
  movsd  %xmm1,0x30(%rsp)
  movapd %xmm1,%xmm0
  mulsd  D55(%rip),%xmm0
  mulsd  D82(%rip),%xmm0
  call   <sin@plt>
  movapd %xmm0,%xmm4
  addsd  %xmm0,%xmm4
  mulsd  %xmm0,%xmm4
  movsd  %xmm4,0x20(%rsp)
  movsd  D82(%rip),%xmm4
  mulsd  0x30(%rsp),%xmm4
  movapd %xmm4,%xmm0
  call   <sin@plt>
  movsd  %xmm0,0x18(%rsp)
  cmpl   $0x0,0x2c(%rsp)
  js     L29
  movsd  0x18(%rsp),%xmm5
  xorpd  D94(%rip),%xmm5
  movsd  %xmm5,0x18(%rsp)
  movsd  D126(%rip),%xmm5
L65:
  mov    0x10(%rsp),%esi
  movslq %esi,%rax
  shl    $0x3,%rax
  mov    %rax,(%rsp)
  mov    %esi,%eax
  neg    %eax
  cltq
  shl    $0x3,%rax
  mov    %rax,0x8(%rsp)
  movslq %ebx,%rbx
  shl    $0x3,%rbx
  mov    $0x0,%ebp
  pxor   %xmm4,%xmm4
  mov    $0x0,%r15d
  mov    $0x20,%eax
  mov    $0x1,%r14d
  lea    0x48(%rsp),%rcx
  mov    %rcx,0x38(%rsp)
  jmp    L69
L39:
  mov    %ecx,%edx
  lea    D8(%rip),%rdi
  call   <printf@plt>
L24:
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L29:
  movslq %ebx,%rax
  shl    $0x3,%rax
  movsd  (%r12),%xmm0
  movsd  %xmm0,-0x10(%r12,%rax,1)
  movsd  0x0(%r13),%xmm0
  movsd  %xmm0,-0x10(%r13,%rax,1)
  movsd  D124(%rip),%xmm5
  jmp    L65
L49:
  lea    0x20(%rax),%edx
  mov    %edx,0x28(%rsp)
  lea    0x40(%rsp),%rsi
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  mulsd  0x30(%rsp),%xmm0
  mulsd  D82(%rip),%xmm0
  mov    0x38(%rsp),%rdi
  call   <sincos@plt>
  movsd  0x40(%rsp),%xmm0
  movsd  0x48(%rsp),%xmm4
  movapd %xmm0,%xmm5
  cmpl   $0x0,0x2c(%rsp)
  jle    L50
  xorpd  D94(%rip),%xmm5
L50:
  mov    0x28(%rsp),%eax
L22:
  add    0x10(%rsp),%r14d
  add    (%rsp),%rbp
  add    0x8(%rsp),%rbx
  cmp    %r14d,0x14(%rsp)
  jl     L24
L69:
  movsd  (%r12,%rbp,1),%xmm2
  movsd  -0x10(%r12,%rbx,1),%xmm0
  movapd %xmm2,%xmm3
  addsd  %xmm0,%xmm3
  subsd  %xmm0,%xmm2
  movsd  0x0(%r13,%rbp,1),%xmm0
  movsd  -0x10(%r13,%rbx,1),%xmm6
  movapd %xmm0,%xmm1
  addsd  %xmm6,%xmm1
  subsd  %xmm6,%xmm0
  movapd %xmm1,%xmm6
  mulsd  %xmm5,%xmm6
  movapd %xmm2,%xmm7
  mulsd  %xmm4,%xmm7
  addsd  %xmm7,%xmm6
  mulsd  %xmm4,%xmm1
  mulsd  %xmm5,%xmm2
  subsd  %xmm2,%xmm1
  movapd %xmm1,%xmm2
  subsd  %xmm0,%xmm2
  mulsd  D55(%rip),%xmm2
  movsd  %xmm2,-0x10(%r13,%rbx,1)
  addsd  %xmm1,%xmm0
  mulsd  D55(%rip),%xmm0
  movsd  %xmm0,0x0(%r13,%rbp,1)
  movapd %xmm3,%xmm0
  subsd  %xmm6,%xmm0
  mulsd  D55(%rip),%xmm0
  movsd  %xmm0,-0x10(%r12,%rbx,1)
  addsd  %xmm6,%xmm3
  mulsd  D55(%rip),%xmm3
  movsd  %xmm3,(%r12,%rbp,1)
  add    $0x1,%r15d
  cmp    %eax,%r15d
  je     L49
  movsd  0x20(%rsp),%xmm7
  movapd %xmm7,%xmm0
  mulsd  %xmm5,%xmm0
  movsd  0x18(%rsp),%xmm3
  movapd %xmm3,%xmm1
  mulsd  %xmm4,%xmm1
  addsd  %xmm1,%xmm0
  mulsd  %xmm5,%xmm3
  movapd %xmm3,%xmm1
  mulsd  %xmm4,%xmm7
  subsd  %xmm7,%xmm1
  addsd  %xmm1,%xmm4
  subsd  %xmm0,%xmm5
  jmp    L22
```

tool_calls: name: unpack_data
arguments: data_label: D112
type_infered: f32[2]
name: unpack_data
arguments: data_label: D55
type_infered: f64
name: unpack_data
arguments: data_label: D82
type_infered: f64
name: unpack_data
arguments: data_label: D94
type_infered: f32[4]
name: unpack_data
arguments: data_label: D126
type_infered: f32[2]
name: unpack_data
arguments: data_label: D8
type_infered: string
name: unpack_data
arguments: data_label: D124
type_infered: f64

tool: {"D112": [0.0,-2.25]}

tool: D55: 0.5

tool: D82: 0.7853981633974483

tool: {"D94": [0.0,-0.0,0.0,0.0]}

tool: {"D126": [0.0,-1.875]}

tool: D8: 
error - zero in reals parameters : %d : %d 

tool: D124: 1

assistant: ```c
void reals_(double *a, double *b, int n, int isn) {
  int inc, j, k, lim, mm, ml, nf, nk, nh;
  double aa, ab, ba, bb, cd, cn, dr, em, rad, re, sd, sn;
  double xx;
  a--;
  b--;
  inc = abs(isn);
  nf = abs(n);
  if (nf * isn == 0) {
    printf("\nerror - zero in reals parameters : %d : %d ", n, isn);
    return;
  }
  nk = (nf * inc) + 2;
  nh = nk / 2;
  rad = 0.785398163397448278900;
  dr = -4.0 / (double)(nf);
  xx = sin((double)0.5 * dr * rad);
  cd = 2.0 * xx * xx;
  sd = sin(dr * rad);
  lim = 32;
  mm = lim;
  ml = 0;
  sn = 0.0;
  if (isn < 0) {
    cn = 1.0;
    a[nk - 1] = a[1];
    b[nk - 1] = b[1];
  } else {
    cn = -1.0;
    sd = -sd;
  }
  for (j = 1; j <= nh; j += inc) {
    k = nk - j;
    aa = a[j] + a[k];
    ab = a[j] - a[k];
    ba = b[j] + b[k];
    bb = b[j] - b[k];
    re = (cn * ba) + (sn * ab);
    em = (sn * ba) - (cn * ab);
    b[k] = (double)((em - bb) * 0.5);
    b[j] = (double)((em + bb) * 0.5);
    a[k] = (double)((aa - re) * 0.5);
    a[j] = (double)((aa + re) * 0.5);
    ml++;
    if (ml != mm) {
      aa = cn - ((cd * cn) + (sd * sn));
      sn = ((sd * cn) - (cd * sn)) + sn;
      cn = aa;
    } else {
      mm += lim;
      sn = ((double)ml) * dr * rad;
      cn = cos(sn);
      if (isn > 0)
        cn = -cn;
      sn = sin(sn);
    }
  }
  return;
}
```