user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<fk52ecl>:
  endbr64
  push   %r14
  movq   %xmm0,%r14
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0xb0,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xa8(%rsp)
  xor    %eax,%eax
  ucomisd D25(%rip),%xmm0
  jp     L21
  jne    L21
L2:
  movsd  0x0(%rbp),%xmm0
  mov    $0x1,%eax
  call   <degrad@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  mov    $0x1,%eax
  movsd  %xmm0,0x10(%rsp)
  movsd  (%rbx),%xmm0
  call   <degrad@plt>
  pxor   %xmm1,%xmm1
  movsd  0x10(%rsp),%xmm0
  movsd  D14(%rip),%xmm2
  cvtsi2sd %eax,%xmm1
  lea    0x20(%rsp),%rdi
  mov    $0x3,%eax
  movsd  %xmm2,0x18(%rsp)
  movsd  %xmm1,0x8(%rsp)
  call   <s2v3@plt>
  movq   %r14,%xmm1
  mov    $0x1,%eax
  subsd  D25(%rip),%xmm1
  mulsd  D83(%rip),%xmm1
  movsd  D63(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  subsd  D48(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  subsd  D79(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  addsd  D36(%rip),%xmm0
  call   <secrad@plt>
  pxor   %xmm0,%xmm0
  pxor   %xmm2,%xmm2
  lea    0x60(%rsp),%rsi
  cvtsi2sd %eax,%xmm0
  movapd %xmm2,%xmm1
  mov    $0x1,%edi
  mov    $0x3,%eax
  call   <rotmat@plt>
  movapd 0x60(%rsp),%xmm5
  lea    0x18(%rsp),%rcx
  movsd  0x20(%rsp),%xmm0
  movsd  0x28(%rsp),%xmm4
  movsd  0x30(%rsp),%xmm3
  lea    0x8(%rsp),%rdx
  xor    %eax,%eax
  movapd %xmm5,%xmm1
  movapd %xmm0,%xmm2
  movhps 0x78(%rsp),%xmm1
  lea    0x10(%rsp),%rsi
  unpcklpd %xmm2,%xmm2
  movapd %xmm4,%xmm6
  lea    0x40(%rsp),%rdi
  mulpd  %xmm2,%xmm1
  pxor   %xmm2,%xmm2
  unpcklpd %xmm6,%xmm6
  mulsd  0x98(%rsp),%xmm4
  mulsd  0x90(%rsp),%xmm0
  addsd  D66(%rip),%xmm0
  addpd  %xmm2,%xmm1
  movapd %xmm5,%xmm2
  shufpd $0x1,%xmm5,%xmm2
  addsd  %xmm4,%xmm0
  movhpd 0x80(%rsp),%xmm2
  mulpd  %xmm6,%xmm2
  addpd  %xmm2,%xmm1
  movapd 0x70(%rsp),%xmm2
  unpcklpd %xmm5,%xmm2
  movapd %xmm3,%xmm5
  movhps 0x88(%rsp),%xmm2
  mulsd  0xa0(%rsp),%xmm3
  unpcklpd %xmm5,%xmm5
  mulpd  %xmm5,%xmm2
  addsd  %xmm3,%xmm0
  addpd  %xmm2,%xmm1
  movsd  %xmm0,0x50(%rsp)
  movaps %xmm1,0x40(%rsp)
  call   <v2s3@plt>
  movsd  0x10(%rsp),%xmm0
  mov    $0x1,%eax
  call   <raddeg@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  mov    $0x1,%eax
  movsd  %xmm0,0x0(%rbp)
  movsd  0x8(%rsp),%xmm0
  call   <raddeg@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  %xmm0,(%rbx)
  mov    0xa8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L22
  add    $0xb0,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r14
  ret
  xchg   %ax,%ax
L21:
  mov    D25(%rip),%rax
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  movq   %r14,%xmm1
  movq   %rax,%xmm0
  mov    $0x2,%eax
  call   <fk5prec@plt>
  jmp    L2
L22:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D25
type_infered: f64
name: parse_data
arguments: data_tag: D14
type_infered: f64
name: parse_data
arguments: data_tag: D83
type_infered: f64
name: parse_data
arguments: data_tag: D63
type_infered: f64
name: parse_data
arguments: data_tag: D48
type_infered: f64
name: parse_data
arguments: data_tag: D79
type_infered: f64
name: parse_data
arguments: data_tag: D36
type_infered: f64
name: parse_data
arguments: data_tag: D66
type_infered: f64

tool: D25: 2000

tool: D14: 1

tool: D83: 0.01

tool: D63: 0.001813

tool: D48: 0.00059

tool: D79: 46.815

tool: D36: 84381.448

tool: D66: 0

assistant: ```c
void fk52ecl(dtheta, dphi, epoch) double *dtheta;
double *dphi;
double epoch;
{
  int i, j;
  double t, eps0, rphi, rtheta;
  double v1[3], v2[3], r;
  double rmat[9], *rmati;
  void rotmat(), v2s3(), s2v3(), fk5prec();
  if (epoch != 2000.0)
    fk5prec(2000.0, epoch, dtheta, dphi);
  rtheta = degrad(*dtheta);
  rphi = degrad(*dphi);
  r = 1.0;
  s2v3(rtheta, rphi, r, v1);
  t = (epoch - 2000.0) * 0.01;
  eps0 = secrad((84381.448 + (-46.8150 + (-0.00059 + 0.001813 * t) * t) * t));
  rotmat(1, eps0, 0.0, 0.0, rmat);
  rmati = rmat;
  for (i = 0; i < 3; i++) {
    v2[i] = 0;
    for (j = 0; j < 3; j++)
      v2[i] = v2[i] + (*rmati++ * v1[j]);
  }
  v2s3(v2, &rtheta, &rphi, &r);
  *dtheta = raddeg(rtheta);
  *dphi = raddeg(rphi);
}
```