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

```asm
<radb2>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%r9d
  mov    %esi,%ebx
  mov    %rdx,%r11
  mov    %rcx,%r10
  test   %esi,%esi
  jle    L83
  lea    (%rdi,%rdi,1),%ecx
  movslq %ecx,%rcx
  shl    $0x3,%rcx
  mov    %rdx,%rax
  movslq %edi,%rbp
  shl    $0x3,%rbp
  mov    %r10,%rdx
  mov    %esi,%edi
  imul   %r9d,%edi
  movslq %edi,%rdi
  mov    $0x0,%esi
L2:
  movsd  (%rax),%xmm0
  addsd  -0x8(%rax,%rcx,1),%xmm0
  movsd  %xmm0,(%rdx)
  movsd  (%rax),%xmm0
  subsd  -0x8(%rax,%rcx,1),%xmm0
  movsd  %xmm0,(%rdx,%rdi,8)
  add    $0x1,%esi
  add    %rcx,%rax
  add    %rbp,%rdx
  cmp    %esi,%ebx
  jne    L2
L83:
  cmp    $0x1,%r9d
  jle    L26
  cmp    $0x2,%r9d
  je     L31
  test   %ebx,%ebx
  jle    L26
  lea    (%r9,%r9,1),%r14d
  movslq %r14d,%r14
  shl    $0x3,%r14
  mov    %r11,%rbp
  movslq %r9d,%r13
  shl    $0x3,%r13
  mov    %r10,%rdi
  mov    %ebx,%eax
  imul   %r9d,%eax
  cltq
  lea    (%r10,%rax,8),%rsi
  mov    $0x0,%r12d
  lea    -0x18(%r14),%r15
L39:
  lea    (%r15,%rbp,1),%rcx
  mov    %rbp,%rdx
  mov    $0x2,%eax
L7:
  movsd  0x8(%rdx),%xmm0
  addsd  (%rcx),%xmm0
  movsd  %xmm0,-0x8(%rdi,%rax,8)
  movsd  0x8(%rdx),%xmm1
  subsd  (%rcx),%xmm1
  movsd  0x10(%rdx),%xmm0
  subsd  0x8(%rcx),%xmm0
  movsd  %xmm0,(%rdi,%rax,8)
  movsd  0x10(%rdx),%xmm0
  addsd  0x8(%rcx),%xmm0
  movapd %xmm1,%xmm2
  mulsd  -0x10(%r8,%rax,8),%xmm2
  movapd %xmm0,%xmm3
  mulsd  -0x8(%r8,%rax,8),%xmm3
  subsd  %xmm3,%xmm2
  movsd  %xmm2,-0x8(%rsi,%rax,8)
  mulsd  -0x10(%r8,%rax,8),%xmm0
  mulsd  -0x8(%r8,%rax,8),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,(%rsi,%rax,8)
  add    $0x2,%rax
  add    $0x10,%rdx
  sub    $0x10,%rcx
  cmp    %eax,%r9d
  jg     L7
  add    $0x1,%r12d
  add    %r14,%rbp
  add    %r13,%rdi
  add    %r13,%rsi
  cmp    %r12d,%ebx
  jne    L39
  mov    %r9d,%edx
  shr    $0x1f,%edx
  lea    (%r9,%rdx,1),%eax
  and    $0x1,%eax
  sub    %edx,%eax
  cmp    $0x1,%eax
  je     L26
L86:
  lea    (%r9,%r9,1),%ecx
  movslq %ecx,%rcx
  shl    $0x3,%rcx
  movslq %r9d,%rdx
  shl    $0x3,%rdx
  add    %rdx,%r11
  add    %rdx,%r10
  imul   %ebx,%r9d
  movslq %r9d,%rsi
  mov    $0x0,%eax
  movsd  D5(%rip),%xmm1
L45:
  movsd  -0x8(%r11),%xmm0
  addsd  %xmm0,%xmm0
  movsd  %xmm0,-0x8(%r10)
  movapd %xmm1,%xmm0
  mulsd  (%r11),%xmm0
  movsd  %xmm0,-0x8(%r10,%rsi,8)
  add    $0x1,%eax
  add    %rcx,%r11
  add    %rdx,%r10
  cmp    %eax,%ebx
  jg     L45
L26:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L31:
  test   %ebx,%ebx
  jg     L86
  jmp    L26
```

tool_calls: name: read_data
arguments: tag: D5
type_guessed: byte[8]

tool: {"D5": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xc0]}

assistant: ```c
void radb2(int ido, int l1, const double cc[], double ch[], const double wa1[]) {
  int i, k, ic;
  double ti2, tr2;
  for (k = 0; k < l1; k++) {
    ch[k * ido] = cc[2 * k * ido] + cc[ido - 1 + (2 * k + 1) * ido];
    ch[(k + l1) * ido] = cc[2 * k * ido] - cc[ido - 1 + (2 * k + 1) * ido];
  }
  if (ido < 2)
    return;
  if (ido != 2) {
    for (k = 0; k < l1; ++k) {
      for (i = 2; i < ido; i += 2) {
        ic = ido - i;
        ch[i - 1 + k * ido] = cc[i - 1 + 2 * k * ido] + cc[ic - 1 + (2 * k + 1) * ido];
        tr2 = cc[i - 1 + 2 * k * ido] - cc[ic - 1 + (2 * k + 1) * ido];
        ch[i + k * ido] = cc[i + 2 * k * ido] - cc[ic + (2 * k + 1) * ido];
        ti2 = cc[i + (2 * k) * ido] + cc[ic + (2 * k + 1) * ido];
        ch[i - 1 + (k + l1) * ido] = wa1[i - 2] * tr2 - wa1[i - 1] * ti2;
        ch[i + (k + l1) * ido] = wa1[i - 2] * ti2 + wa1[i - 1] * tr2;
      }
    }
    if (ido % 2 == 1)
      return;
  }
  for (k = 0; k < l1; k++) {
    ch[ido - 1 + k * ido] = 2 * cc[ido - 1 + 2 * k * ido];
    ch[ido - 1 + (k + l1) * ido] = -2 * cc[(2 * k + 1) * ido];
  }
}
```