user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<dcs_photonuclear_f2a_BM>:
  endbr64
  sub    $0x68,%rsp
  mulsd  D47(%rip),%xmm4
  movsd  %xmm1,0x50(%rsp)
  movsd  D11(%rip),%xmm1
  movsd  %xmm2,0x20(%rsp)
  movsd  %xmm0,0x58(%rsp)
  movsd  %xmm3,0x18(%rsp)
  movapd %xmm4,%xmm6
  movapd %xmm4,%xmm7
  addsd  %xmm4,%xmm1
  movsd  %xmm4,0x30(%rsp)
  addsd  %xmm4,%xmm6
  addsd  D45(%rip),%xmm7
  movapd %xmm4,%xmm0
  divsd  %xmm1,%xmm0
  movapd %xmm6,%xmm2
  divsd  %xmm7,%xmm2
  addsd  D177(%rip),%xmm0
  mulsd  D87(%rip),%xmm0
  movsd  %xmm0,0x8(%rsp)
  movapd %xmm3,%xmm0
  addsd  D177(%rip),%xmm2
  mulsd  D32(%rip),%xmm2
  movapd %xmm2,%xmm1
  xorpd  D159(%rip),%xmm1
  movsd  %xmm2,0x28(%rsp)
  call   <pow@plt>
  movsd  0x30(%rsp),%xmm4
  movsd  D41(%rip),%xmm1
  movsd  0x28(%rsp),%xmm2
  movsd  %xmm0,0x10(%rsp)
  addsd  %xmm4,%xmm1
  movapd %xmm4,%xmm6
  movsd  %xmm4,0x48(%rsp)
  divsd  %xmm1,%xmm6
  movsd  D177(%rip),%xmm1
  addsd  %xmm2,%xmm1
  movapd %xmm6,%xmm0
  call   <pow@plt>
  movsd  0x10(%rsp),%xmm7
  mulsd  D153(%rip),%xmm7
  movsd  0x18(%rsp),%xmm3
  movsd  D177(%rip),%xmm6
  movsd  D71(%rip),%xmm1
  addsd  0x8(%rsp),%xmm1
  subsd  %xmm3,%xmm6
  movsd  %xmm3,0x38(%rsp)
  mulsd  %xmm0,%xmm7
  movapd %xmm6,%xmm0
  movsd  %xmm6,0x18(%rsp)
  movsd  %xmm7,0x40(%rsp)
  call   <pow@plt>
  movsd  0x8(%rsp),%xmm5
  addsd  D25(%rip),%xmm5
  movsd  0x18(%rsp),%xmm6
  movsd  %xmm0,0x10(%rsp)
  movapd %xmm5,%xmm1
  movapd %xmm6,%xmm0
  movsd  %xmm6,0x28(%rsp)
  call   <pow@plt>
  movsd  0x38(%rsp),%xmm3
  movsd  D21(%rip),%xmm1
  movsd  %xmm0,0x30(%rsp)
  movapd %xmm3,%xmm0
  call   <pow@plt>
  movsd  0x28(%rsp),%xmm6
  movsd  0x8(%rsp),%xmm1
  movsd  %xmm0,0x18(%rsp)
  movapd %xmm6,%xmm0
  call   <pow@plt>
  movsd  0x48(%rsp),%xmm4
  movsd  D132(%rip),%xmm5
  movsd  D161(%rip),%xmm1
  movsd  %xmm0,0x8(%rsp)
  addsd  %xmm4,%xmm5
  divsd  %xmm5,%xmm4
  movapd %xmm4,%xmm0
  call   <pow@plt>
  movsd  0x18(%rsp),%xmm5
  mulsd  0x8(%rsp),%xmm5
  movsd  D155(%rip),%xmm3
  movsd  0x28(%rsp),%xmm6
  movsd  D71(%rip),%xmm1
  movsd  0x30(%rsp),%xmm9
  movsd  0x40(%rsp),%xmm7
  movsd  0x50(%rsp),%xmm8
  movapd %xmm5,%xmm2
  movsd  D36(%rip),%xmm5
  mulsd  %xmm0,%xmm2
  mulsd  %xmm2,%xmm3
  mulsd  D68(%rip),%xmm2
  mulsd  %xmm3,%xmm5
  mulsd  %xmm6,%xmm2
  movapd %xmm5,%xmm0
  movsd  0x58(%rsp),%xmm5
  mulsd  %xmm2,%xmm1
  addsd  %xmm2,%xmm3
  subsd  %xmm5,%xmm8
  addsd  %xmm1,%xmm0
  movapd %xmm9,%xmm1
  mulsd  %xmm7,%xmm1
  addsd  %xmm1,%xmm0
  movsd  0x10(%rsp),%xmm1
  mulsd  %xmm7,%xmm1
  mulsd  %xmm8,%xmm0
  addsd  %xmm3,%xmm1
  mulsd  %xmm5,%xmm1
  addsd  %xmm1,%xmm0
  mulsd  0x20(%rsp),%xmm0
  add    $0x68,%rsp
  ret
```

tool_calls: name: retrieve_data
arguments: data_label: D47
data_type: byte[8]
name: retrieve_data
arguments: data_label: D11
data_type: byte[8]
name: retrieve_data
arguments: data_label: D45
data_type: byte[8]
name: retrieve_data
arguments: data_label: D177
data_type: f64
name: retrieve_data
arguments: data_label: D87
data_type: f64
name: retrieve_data
arguments: data_label: D32
data_type: f64
name: retrieve_data
arguments: data_label: D159
data_type: byte[16]
name: retrieve_data
arguments: data_label: D41
data_type: byte[8]
name: retrieve_data
arguments: data_label: D153
data_type: f64
name: retrieve_data
arguments: data_label: D71
data_type: f64
name: retrieve_data
arguments: data_label: D25
data_type: f64
name: retrieve_data
arguments: data_label: D21
data_type: byte[8]
name: retrieve_data
arguments: data_label: D132
data_type: byte[8]
name: retrieve_data
arguments: data_label: D161
data_type: f64
name: retrieve_data
arguments: data_label: D155
data_type: f64
name: retrieve_data
arguments: data_label: D36
data_type: byte[8]
name: retrieve_data
arguments: data_label: D68
data_type: f64

tool: {"D47": [0x00,0x00,0x00,0x00,0x80,0x84,0x2e,0x41]}

tool: {"D11": [0x00,0x00,0x00,0x00,0x68,0x1c,0x47,0x41]}

tool: {"D45": [0x00,0x00,0x00,0x00,0xe4,0x9b,0x36,0x41]}

tool: D177: 1

tool: D87: 1.5

tool: D32: 0.0988

tool: {"D159": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D41": [0x00,0x00,0x00,0x00,0x20,0xad,0x0e,0x41]}

tool: D153: 0.12

tool: D71: 4

tool: D25: 1.8152

tool: {"D21": [0xbe,0xc1,0x17,0x26,0x53,0x05,0xe3,0x3f]}

tool: {"D132": [0x00,0x00,0x00,0x00,0xd0,0xe0,0x22,0x41]}

tool: D161: 0.4056

tool: D155: 1.2437

tool: {"D36": [0x00,0x00,0x00,0x00,0x00,0x00,0xd0,0x3f]}

tool: D68: 0.1853

assistant: ```c
double dcs_photonuclear_f2a_BM(double Z, double A, double shadowing, double x, double Q2) {
  Q2 *= 1E+06;
  const double a = 0.2513E+06;
  const double b = 0.6186E+06;
  const double c = 3.0292E+06;
  const double d = 1.4817E+06;
  const double intercept_pomeron = 0.0988;
  const double intercept_reggeon = 0.4056;
  const double tau = 1.8152;
  const double A_s = 0.12;
  const double B_up = 1.2437;
  const double B_down = 0.1853;
  const double n = 1.5 * (1. + Q2 / (Q2 + c));
  const double dl = intercept_pomeron * (1. + 2. * Q2 / (Q2 + d));
  double aux = A_s * pow(x, -dl) * pow(Q2 / (Q2 + a), 1. + dl);
  const double F_proton_singlet = aux * pow(1. - x, n + 4.);
  const double F_neutron_singlet = aux * pow(1. - x, n + tau);
  aux = pow(x, 1. - intercept_reggeon) * pow(1. - x, n) * pow(Q2 / (Q2 + b), intercept_reggeon);
  const double Up_valence = B_up * aux;
  const double Down_valence = B_down * aux * (1. - x);
  const double F_proton_non_singlet = Up_valence + Down_valence;
  const double F_neutron_non_singlet = Up_valence / 4. + Down_valence * 4.;
  const double structure_function_proton = F_proton_singlet + F_proton_non_singlet;
  const double structure_function_neutron = F_neutron_singlet + F_neutron_non_singlet;
  return shadowing * (Z * structure_function_proton + (A - Z) * structure_function_neutron);
}
```