user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<dct>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x88,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %rsi,-0x70(%rbp)
  mov    %edx,-0x74(%rbp)
  mov    %rcx,-0x80(%rbp)
  mov    -0x74(%rbp),%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  mov    %eax,-0x58(%rbp)
  mov    -0x58(%rbp),%eax
  sar    %eax
  mov    %eax,-0x54(%rbp)
  mov    -0x80(%rbp),%rax
  movsd  (%rax),%xmm0
  cvttsd2si %xmm0,%eax
  cmp    %eax,-0x58(%rbp)
  je     L38
  mov    -0x58(%rbp),%eax
  add    %eax,%eax
  pxor   %xmm1,%xmm1
  cvtsi2sd %eax,%xmm1
  movsd  D9(%rip),%xmm0
  divsd  %xmm1,%xmm0
  movsd  %xmm0,-0x18(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x80(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x48(%rbp)
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x20(%rbp)
  movl   $0x0,-0x5c(%rbp)
  jmp    L7
L60:
  mov    -0x20(%rbp),%rax
  movq   %rax,%xmm0
  call   <cos@plt>
  movq   %xmm0,%rbx
  mov    -0x20(%rbp),%rax
  movq   %rax,%xmm0
  call   <sin@plt>
  movq   %rbx,%xmm1
  subsd  %xmm0,%xmm1
  mov    -0x50(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x50(%rbp)
  movsd  D15(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x20(%rbp),%rax
  movq   %rax,%xmm0
  call   <cos@plt>
  movsd  %xmm0,-0x88(%rbp)
  mov    -0x20(%rbp),%rax
  movq   %rax,%xmm0
  call   <sin@plt>
  movsd  -0x88(%rbp),%xmm1
  addsd  %xmm0,%xmm1
  mov    -0x48(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  movsd  D15(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  movsd  -0x20(%rbp),%xmm0
  addsd  -0x18(%rbp),%xmm0
  movsd  %xmm0,-0x20(%rbp)
  addl   $0x1,-0x5c(%rbp)
L7:
  mov    -0x5c(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L60
L38:
  mov    -0x68(%rbp),%rax
  mov    %rax,-0x40(%rbp)
  mov    -0x58(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x38(%rbp)
  mov    -0x70(%rbp),%rax
  mov    %rax,-0x30(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x28(%rbp)
  movl   $0x0,-0x5c(%rbp)
  jmp    L46
L53:
  mov    -0x30(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x30(%rbp)
  mov    -0x40(%rbp),%rdx
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x28(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x28(%rbp)
  mov    -0x38(%rbp),%rdx
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  addq   $0x10,-0x40(%rbp)
  subq   $0x10,-0x38(%rbp)
  addl   $0x1,-0x5c(%rbp)
L46:
  mov    -0x5c(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L53
  mov    -0x80(%rbp),%rdx
  mov    -0x74(%rbp),%ecx
  mov    -0x70(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <hartley@plt>
  mov    -0x70(%rbp),%rax
  movsd  (%rax),%xmm0
  mov    -0x68(%rbp),%rax
  movsd  %xmm0,(%rax)
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x70(%rbp),%rax
  add    %rax,%rdx
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x68(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x54(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x80(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x48(%rbp)
  mov    -0x68(%rbp),%rax
  add    $0x8,%rax
  mov    %rax,-0x40(%rbp)
  mov    -0x58(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x38(%rbp)
  mov    -0x70(%rbp),%rax
  add    $0x8,%rax
  mov    %rax,-0x30(%rbp)
  mov    -0x58(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x28(%rbp)
  movl   $0x1,-0x5c(%rbp)
  jmp    L3
L5:
  mov    -0x50(%rbp),%rax
  movsd  (%rax),%xmm1
  mov    -0x30(%rbp),%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm0,%xmm1
  mov    -0x48(%rbp),%rax
  movsd  (%rax),%xmm2
  mov    -0x28(%rbp),%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm2,%xmm0
  mov    -0x40(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x40(%rbp)
  addsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x48(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  movsd  (%rax),%xmm1
  mov    -0x30(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x30(%rbp)
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  mov    -0x50(%rbp),%rax
  lea    0x8(%rax),%rdx
  mov    %rdx,-0x50(%rbp)
  movsd  (%rax),%xmm2
  mov    -0x28(%rbp),%rax
  lea    -0x8(%rax),%rdx
  mov    %rdx,-0x28(%rbp)
  movsd  (%rax),%xmm1
  mulsd  %xmm2,%xmm1
  mov    -0x38(%rbp),%rax
  lea    -0x8(%rax),%rdx
  mov    %rdx,-0x38(%rbp)
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x5c(%rbp)
L3:
  mov    -0x5c(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L5
  nop
  nop
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D9
datatype: f64
name: unpack_data
arguments: data_label: D15
datatype: f64

tool: D9: 3.141592652598793

tool: D15: 0.707106781186547

assistant: ```c
void dct(x, y, m, tab) double *x, *y, *tab;
int m;
{
  int n, n2, i;
  double *cp1, *cp2, *xp1, *xp2, *yp1, *yp2;
  double arg, delta_w;
  n = 1 << m;
  n2 = n >> 1;
  if ((int)(*tab) != n) {
    delta_w = 3.141592652598793 / (2 * n);
    cp1 = tab + n2;
    cp2 = cp1 + n2;
    arg = 0;
    for (i = 0; i < n2; i++) {
      *(cp1++) = (double)(cos(arg) - sin(arg)) * 0.707106781186547;
      *(cp2++) = (double)(cos(arg) + sin(arg)) * 0.707106781186547;
      arg += delta_w;
    }
  }
  xp1 = x;
  xp2 = x + (n - 1);
  yp1 = y;
  yp2 = y + n2;
  for (i = 0; i < n2; i++) {
    *(yp1++) = *xp1;
    *(yp2++) = *xp2;
    xp1 += 2;
    xp2 -= 2;
  }
  hartley(y, m, tab);
  *x = *y;
  *(x + n2) = *(y + n2);
  cp1 = tab + n2 + 1;
  cp2 = cp1 + n2;
  xp1 = x + 1;
  xp2 = x + (n - 1);
  yp1 = y + 1;
  yp2 = y + (n - 1);
  for (i = 1; i < n2; i++) {
    *(xp1++) = (*cp1) * (*yp1) + (*cp2) * (*yp2);
    *(xp2--) = (*cp2++) * (*yp1++) - (*cp1++) * (*yp2--);
  }
}
```