user: 下面的汇编指令对应的C源代码是什么：

```asm
<target_phi>:
  endbr64
  push   %r14
  push   %rbx
  sub    $0xf8,%rsp
  mov    %rdi,%rcx
  mov    %rsi,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,0xe8(%rsp)
  xor    %eax,%eax
  movss  D5(%rip),%xmm0
  movss  %xmm0,0x60(%rsp)
  movss  %xmm0,0x64(%rsp)
  movl   $0xc1900000,0x68(%rsp)
  movl   $0xc19022d1,0x6c(%rsp)
  movl   $0x0,0x70(%rsp)
  movl   $0x0,0x74(%rsp)
  movl   $0x0,0x78(%rsp)
  movl   $0x0,0x7c(%rsp)
  movl   $0x0,0x80(%rsp)
  movl   $0x0,0x84(%rsp)
  movss  D253(%rip),%xmm0
  movss  %xmm0,0x90(%rsp)
  movss  %xmm0,0x94(%rsp)
  movl   $0x41900000,0x98(%rsp)
  movl   $0x418fe148,0x9c(%rsp)
  movl   $0x0,0xa0(%rsp)
  movl   $0x0,0xa4(%rsp)
  movl   $0x0,0xa8(%rsp)
  movl   $0x0,0xac(%rsp)
  movl   $0x0,0xb0(%rsp)
  movl   $0x0,0xb4(%rsp)
  movq   $0x0,0xc0(%rsp)
  movq   $0x0,0xc8(%rsp)
  movq   $0x0,0xd0(%rsp)
  movq   $0x0,0xd8(%rsp)
  movq   $0x0,0xe0(%rsp)
  test   %edx,%edx
  jle    L77
  mov    %edx,%edx
  movss  D25(%rip),%xmm2
  jmp    L21
L99:
  subss  %xmm1,%xmm0
  movaps %xmm2,%xmm1
  divss  %xmm0,%xmm1
  movss  %xmm1,0xc0(%rsp,%rax,4)
L79:
  add    $0x1,%rax
  cmp    %rdx,%rax
  je     L77
L21:
  movss  0x60(%rsp,%rax,4),%xmm1
  movss  0x90(%rsp,%rax,4),%xmm0
  ucomiss %xmm0,%xmm1
  jp     L99
  jne    L99
  jmp    L79
L77:
  movss  0xc0(%rsp),%xmm1
  movss  (%rcx),%xmm0
  movss  D253(%rip),%xmm4
  subss  %xmm4,%xmm0
  movaps %xmm0,%xmm2
  mulss  %xmm1,%xmm2
  movss  D425(%rip),%xmm0
  movaps %xmm2,%xmm5
  addss  %xmm0,%xmm5
  movss  %xmm5,0x10(%rsp)
  mulss  (%rbx),%xmm1
  movss  0xc4(%rsp),%xmm3
  movss  0x4(%rcx),%xmm2
  subss  %xmm4,%xmm2
  mulss  %xmm3,%xmm2
  movaps %xmm2,%xmm15
  addss  %xmm0,%xmm15
  movss  %xmm15,0xc(%rsp)
  mulss  0x4(%rbx),%xmm3
  movss  %xmm3,0x1c(%rsp)
  movss  0xc8(%rsp),%xmm3
  movss  0x8(%rcx),%xmm2
  subss  D426(%rip),%xmm2
  mulss  %xmm3,%xmm2
  movaps %xmm2,%xmm10
  addss  %xmm0,%xmm10
  movaps %xmm10,%xmm11
  movss  %xmm10,0x14(%rsp)
  mulss  0x8(%rbx),%xmm3
  movss  %xmm3,0x20(%rsp)
  movss  0xcc(%rsp),%xmm3
  movss  0xc(%rcx),%xmm2
  subss  D183(%rip),%xmm2
  mulss  %xmm3,%xmm2
  movaps %xmm2,%xmm8
  addss  %xmm0,%xmm8
  movaps %xmm3,%xmm2
  mulss  0xc(%rbx),%xmm2
  movss  %xmm2,0x24(%rsp)
  movaps %xmm15,%xmm13
  mulss  %xmm15,%xmm13
  movss  %xmm13,0x2c(%rsp)
  movaps %xmm15,%xmm2
  mulss  %xmm13,%xmm2
  movaps %xmm10,%xmm3
  movaps %xmm10,%xmm12
  mulss  %xmm10,%xmm3
  movaps %xmm3,%xmm10
  movss  %xmm3,0x28(%rsp)
  movaps %xmm11,%xmm9
  mulss  %xmm3,%xmm9
  movss  %xmm9,0x58(%rsp)
  movaps %xmm8,%xmm3
  mulss  %xmm8,%xmm3
  movss  %xmm8,0x4(%rsp)
  movaps %xmm8,%xmm6
  movss  %xmm3,0x8(%rsp)
  mulss  %xmm3,%xmm6
  movaps %xmm6,%xmm3
  movaps %xmm5,%xmm8
  mulss  D372(%rip),%xmm8
  movss  %xmm8,0x30(%rsp)
  movaps %xmm15,%xmm14
  mulss  D260(%rip),%xmm14
  movss  %xmm14,0x34(%rsp)
  movaps %xmm5,%xmm6
  movaps %xmm5,%xmm7
  mulss  D497(%rip),%xmm7
  movss  %xmm7,0x38(%rsp)
  mulss  D292(%rip),%xmm12
  movss  %xmm12,0x3c(%rsp)
  mulss  D194(%rip),%xmm5
  movss  %xmm5,0x40(%rsp)
  movaps %xmm6,%xmm0
  mulss  D450(%rip),%xmm0
  mulss  %xmm13,%xmm0
  movss  %xmm0,0x18(%rsp)
  movaps %xmm6,%xmm0
  mulss  D237(%rip),%xmm0
  addss  D448(%rip),%xmm0
  movaps %xmm11,%xmm4
  mulss  D101(%rip),%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm8,%xmm4
  mulss  %xmm15,%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm14,%xmm4
  mulss  %xmm11,%xmm4
  addss  %xmm4,%xmm0
  movss  0x4(%rsp),%xmm14
  mulss  %xmm14,%xmm7
  addss  %xmm7,%xmm0
  movaps %xmm12,%xmm4
  mulss  %xmm14,%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm15,%xmm4
  mulss  D517(%rip),%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm14,%xmm4
  mulss  D245(%rip),%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm11,%xmm4
  mulss  D72(%rip),%xmm4
  movss  0x8(%rsp),%xmm8
  mulss  %xmm8,%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm6,%xmm4
  mulss  D339(%rip),%xmm4
  mulss  %xmm13,%xmm4
  addss  %xmm4,%xmm0
  mulss  %xmm15,%xmm5
  movaps %xmm5,%xmm4
  mulss  %xmm10,%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm15,%xmm4
  mulss  D29(%rip),%xmm4
  mulss  %xmm9,%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm6,%xmm7
  movaps %xmm6,%xmm4
  mulss  D397(%rip),%xmm4
  mulss  %xmm3,%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm6,%xmm4
  mulss  D173(%rip),%xmm4
  mulss  %xmm2,%xmm4
  addss  %xmm4,%xmm0
  movss  0x18(%rsp),%xmm4
  mulss  %xmm14,%xmm4
  addss  %xmm4,%xmm0
  movaps %xmm6,%xmm4
  mulss  %xmm6,%xmm4
  mulss  D234(%rip),%xmm4
  movaps %xmm4,%xmm6
  movss  %xmm4,0x44(%rsp)
  mulss  %xmm11,%xmm6
  movss  %xmm6,0x48(%rsp)
  mulss  D404(%rip),%xmm7
  mulss  %xmm10,%xmm7
  movss  %xmm7,0x4c(%rsp)
  mulss  D496(%rip),%xmm9
  movss  %xmm9,0x50(%rsp)
  mulss  %xmm14,%xmm6
  addss  %xmm6,%xmm0
  mulss  %xmm14,%xmm7
  addss  %xmm7,%xmm0
  mulss  %xmm14,%xmm9
  addss  %xmm9,%xmm0
  movaps %xmm15,%xmm5
  mulss  D116(%rip),%xmm5
  movss  %xmm5,0x54(%rsp)
  movaps %xmm5,%xmm4
  mulss  %xmm11,%xmm4
  mulss  %xmm8,%xmm4
  addss  %xmm0,%xmm4
  movd   %xmm4,%r14d
  pxor   %xmm4,%xmm4
  movaps %xmm1,%xmm0
  addss  %xmm4,%xmm0
  addss  0x1c(%rsp),%xmm0
  addss  0x20(%rsp),%xmm0
  addss  0x24(%rsp),%xmm0
  ucomiss %xmm4,%xmm0
  jp     L26
  movaps %xmm4,%xmm0
  jne    L26
L82:
  movss  %xmm0,(%rbx)
  mov    0xe8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L60
  movd   %r14d,%xmm0
  add    $0xf8,%rsp
  pop    %rbx
  pop    %r14
  ret
L26:
  mulss  %xmm1,%xmm1
  movss  %xmm1,0x5c(%rsp)
  movss  0xc(%rsp),%xmm5
  movaps %xmm5,%xmm0
  mulss  D372(%rip),%xmm0
  subss  D217(%rip),%xmm0
  movss  0x4(%rsp),%xmm7
  movaps %xmm7,%xmm1
  mulss  D497(%rip),%xmm1
  addss  %xmm1,%xmm0
  movss  0x2c(%rsp),%xmm4
  movaps %xmm4,%xmm1
  mulss  D339(%rip),%xmm1
  addss  %xmm1,%xmm0
  movaps %xmm5,%xmm1
  mulss  D194(%rip),%xmm1
  movss  0x28(%rsp),%xmm6
  mulss  %xmm6,%xmm1
  addss  %xmm1,%xmm0
  mulss  D397(%rip),%xmm3
  addss  %xmm3,%xmm0
  mulss  D173(%rip),%xmm2
  addss  %xmm2,%xmm0
  movaps %xmm4,%xmm1
  mulss  D450(%rip),%xmm1
  mulss  %xmm7,%xmm1
  addss  %xmm1,%xmm0
  movss  0x10(%rsp),%xmm1
  mulss  D280(%rip),%xmm1
  mulss  0x14(%rsp),%xmm1
  mulss  %xmm7,%xmm1
  addss  %xmm1,%xmm0
  movaps %xmm6,%xmm1
  mulss  D404(%rip),%xmm1
  mulss  %xmm7,%xmm1
  addss  %xmm1,%xmm0
  mov    $0x2,%edi
  call   <pow@plt>
  mulss  0x5c(%rsp),%xmm0
  movss  %xmm0,0x5c(%rsp)
  movss  0x1c(%rsp),%xmm0
  mulss  %xmm0,%xmm0
  movss  %xmm0,0x1c(%rsp)
  pxor   %xmm13,%xmm13
  addss  0x30(%rsp),%xmm13
  movaps %xmm13,%xmm0
  movss  0x14(%rsp),%xmm2
  movaps %xmm2,%xmm1
  mulss  D260(%rip),%xmm1
  addss  %xmm1,%xmm0
  subss  D41(%rip),%xmm0
  movss  0xc(%rsp),%xmm3
  movaps %xmm3,%xmm1
  mulss  D143(%rip),%xmm1
  movss  0x10(%rsp),%xmm5
  mulss  %xmm5,%xmm1
  addss  %xmm1,%xmm0
  movss  0x40(%rsp),%xmm13
  mulss  0x28(%rsp),%xmm13
  addss  %xmm13,%xmm0
  movss  0x58(%rsp),%xmm13
  mulss  D29(%rip),%xmm13
  addss  %xmm13,%xmm0
  movss  0x2c(%rsp),%xmm1
  mulss  D435(%rip),%xmm1
  mulss  %xmm5,%xmm1
  addss  %xmm1,%xmm0
  movaps %xmm3,%xmm1
  mulss  D144(%rip),%xmm1
  mulss  %xmm5,%xmm1
  mulss  0x4(%rsp),%xmm1
  addss  %xmm1,%xmm0
  movaps %xmm2,%xmm6
  mulss  D116(%rip),%xmm6
  movaps %xmm6,%xmm1
  mulss  0x8(%rsp),%xmm1
  addss  %xmm1,%xmm0
  mov    $0x2,%edi
  call   <pow@plt>
  mulss  0x1c(%rsp),%xmm0
  addss  0x5c(%rsp),%xmm0
  movss  %xmm0,0x1c(%rsp)
  movss  0x20(%rsp),%xmm0
  mulss  %xmm0,%xmm0
  movss  %xmm0,0x20(%rsp)
  movss  0x34(%rsp),%xmm12
  addss  D101(%rip),%xmm12
  movaps %xmm12,%xmm0
  movss  0x4(%rsp),%xmm7
  movaps %xmm7,%xmm1
  mulss  D292(%rip),%xmm1
  addss  %xmm1,%xmm0
  movss  0x8(%rsp),%xmm4
  movaps %xmm4,%xmm12
  mulss  D72(%rip),%xmm12
  addss  %xmm12,%xmm0
  movss  0x14(%rsp),%xmm2
  movaps %xmm2,%xmm5
  mulss  D421(%rip),%xmm5
  movaps %xmm5,%xmm1
  movss  0x10(%rsp),%xmm5
  mulss  %xmm5,%xmm1
  movss  0xc(%rsp),%xmm3
  mulss  %xmm3,%xmm1
  addss  %xmm1,%xmm0
  movss  0x28(%rsp),%xmm6
  movaps %xmm6,%xmm1
  mulss  D244(%rip),%xmm1
  mulss  %xmm3,%xmm1
  addss  %xmm1,%xmm0
  movss  0x44(%rsp),%xmm1
  mulss  %xmm7,%xmm1
  addss  %xmm1,%xmm0
  movaps %xmm2,%xmm1
  mulss  D266(%rip),%xmm1
  mulss  %xmm5,%xmm1
  mulss  %xmm7,%xmm1
  addss  %xmm1,%xmm0
  mulss  D102(%rip),%xmm6
  movaps %xmm6,%xmm1
  mulss  %xmm7,%xmm1
  addss  %xmm1,%xmm0
  movss  0x54(%rsp),%xmm12
  mulss  %xmm4,%xmm12
  addss  %xmm12,%xmm0
  mov    $0x2,%edi
  call   <pow@plt>
  mulss  0x20(%rsp),%xmm0
  addss  0x1c(%rsp),%xmm0
  movss  %xmm0,0x1c(%rsp)
  movss  0x24(%rsp),%xmm6
  mulss  %xmm6,%xmm6
  movss  %xmm6,0x20(%rsp)
  pxor   %xmm0,%xmm0
  addss  0x38(%rsp),%xmm0
  addss  0x3c(%rsp),%xmm0
  addss  D245(%rip),%xmm0
  movss  0x4(%rsp),%xmm7
  movaps %xmm7,%xmm1
  mulss  D469(%rip),%xmm1
  movss  0x14(%rsp),%xmm2
  mulss  %xmm2,%xmm1
  addss  %xmm1,%xmm0
  movss  0x8(%rsp),%xmm1
  mulss  D346(%rip),%xmm1
  mulss  0x10(%rsp),%xmm1
  addss  %xmm1,%xmm0
  addss  0x18(%rsp),%xmm0
  addss  0x48(%rsp),%xmm0
  addss  0x4c(%rsp),%xmm0
  addss  0x50(%rsp),%xmm0
  mulss  D363(%rip),%xmm7
  movaps %xmm7,%xmm1
  mulss  0xc(%rsp),%xmm1
  mulss  %xmm2,%xmm1
  addss  %xmm1,%xmm0
  mov    $0x2,%edi
  call   <pow@plt>
  mulss  0x20(%rsp),%xmm0
  addss  0x1c(%rsp),%xmm0
  call   <sqrt@plt>
  jmp    L82
L60:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D5
type: byte[4]
name: parse_data
arguments: data_tag: D253
type: f32
name: parse_data
arguments: data_tag: D25
type: f32
name: parse_data
arguments: data_tag: D425
type: f32
name: parse_data
arguments: data_tag: D426
type: f32
name: parse_data
arguments: data_tag: D183
type: byte[4]
name: parse_data
arguments: data_tag: D372
type: byte[4]
name: parse_data
arguments: data_tag: D260
type: byte[4]
name: parse_data
arguments: data_tag: D497
type: byte[4]
name: parse_data
arguments: data_tag: D292
type: byte[4]
name: parse_data
arguments: data_tag: D194
type: byte[4]
name: parse_data
arguments: data_tag: D450
type: byte[4]
name: parse_data
arguments: data_tag: D237
type: byte[4]
name: parse_data
arguments: data_tag: D448
type: byte[4]
name: parse_data
arguments: data_tag: D101
type: byte[4]
name: parse_data
arguments: data_tag: D517
type: byte[4]
name: parse_data
arguments: data_tag: D245
type: byte[4]
name: parse_data
arguments: data_tag: D72
type: byte[4]
name: parse_data
arguments: data_tag: D339
type: byte[4]
name: parse_data
arguments: data_tag: D29
type: byte[4]
name: parse_data
arguments: data_tag: D397
type: byte[4]
name: parse_data
arguments: data_tag: D173
type: byte[4]
name: parse_data
arguments: data_tag: D234
type: byte[4]
name: parse_data
arguments: data_tag: D404
type: byte[4]
name: parse_data
arguments: data_tag: D496
type: byte[4]
name: parse_data
arguments: data_tag: D116
type: byte[4]
name: parse_data
arguments: data_tag: D217
type: byte[4]
name: parse_data
arguments: data_tag: D280
type: byte[4]
name: parse_data
arguments: data_tag: D41
type: byte[4]
name: parse_data
arguments: data_tag: D143
type: byte[4]
name: parse_data
arguments: data_tag: D435
type: byte[4]
name: parse_data
arguments: data_tag: D144
type: byte[4]
name: parse_data
arguments: data_tag: D421
type: byte[4]
name: parse_data
arguments: data_tag: D244
type: byte[4]
name: parse_data
arguments: data_tag: D266
type: byte[4]
name: parse_data
arguments: data_tag: D102
type: byte[4]
name: parse_data
arguments: data_tag: D469
type: byte[4]
name: parse_data
arguments: data_tag: D346
type: byte[4]
name: parse_data
arguments: data_tag: D363
type: byte[4]

tool: {"D5": [0x00,0x00,0x70,0xc1]}

tool: D253: 15

tool: D25: 2

tool: D425: 1

tool: D426: 18

tool: {"D183": [0x48,0xe1,0x8f,0x41]}

tool: {"D372": [0xb8,0x2a,0x82,0x3b]}

tool: {"D260": [0x5e,0xe9,0xe9,0xbb]}

tool: {"D497": [0xcd,0x49,0xd8,0xbb]}

tool: {"D292": [0x83,0xfa,0x41,0x3c]}

tool: {"D194": [0x08,0x95,0x84,0xb9]}

tool: {"D450": [0xbc,0x90,0x85,0xb9]}

tool: {"D237": [0x94,0xa4,0x6b,0xbd]}

tool: {"D448": [0x99,0x07,0xcf,0x39]}

tool: {"D101": [0x69,0x69,0x8e,0x3d]}

tool: {"D517": [0xe6,0x7f,0xa4,0xb8]}

tool: {"D245": [0x19,0x68,0x08,0x39]}

tool: {"D72": [0x58,0x10,0x80,0x38]}

tool: {"D339": [0x74,0xd9,0xd8,0xb7]}

tool: {"D29": [0x92,0xe7,0xaf,0x39]}

tool: {"D397": [0xc4,0xdc,0xea,0x38]}

tool: {"D173": [0x3d,0xe7,0xeb,0x38]}

tool: {"D234": [0x18,0x87,0x0b,0xb9]}

tool: {"D404": [0xf4,0x92,0x3c,0x3a]}

tool: {"D496": [0xde,0x2c,0x3e,0xba]}

tool: {"D116": [0xa1,0x3b,0x94,0x38]}

tool: {"D217": [0x94,0xa4,0x6b,0x3d]}

tool: {"D280": [0x18,0x87,0x8b,0xb9]}

tool: {"D41": [0xe6,0x7f,0xa4,0x38]}

tool: {"D143": [0x74,0xd9,0x58,0xb8]}

tool: {"D435": [0x6e,0xed,0xb0,0x39]}

tool: {"D144": [0xbc,0x90,0x05,0xba]}

tool: {"D421": [0x08,0x95,0x04,0xba]}

tool: {"D244": [0xae,0xed,0x83,0x3a]}

tool: {"D266": [0xf4,0x92,0xbc,0x3a]}

tool: {"D102": [0xa6,0xa1,0x0e,0xbb]}

tool: {"D469": [0x58,0x10,0x00,0x39]}

tool: {"D346": [0x93,0x25,0xb0,0x39]}

tool: {"D363": [0xa1,0x3b,0x14,0x39]}

assistant: ```c
float target_phi(float *x, float *dx, int m) {
  int ncoeff = 20;
  float avdat = 0.3949004E-03;
  float xmin[10] = {-0.15000E+02, -0.15000E+02, -0.18000E+02, -0.18017E+02, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00};
  float xmax[10] = {0.15000E+02, 0.15000E+02, 0.18000E+02, 0.17985E+02, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00};
  float scale[10] = {0};
  float coeff[21] = {-0.22601707E-07, -0.57530001E-01, 0.69536991E-01, 0.39723776E-02, -0.71384152E-02, -0.66005946E-02, 0.11839512E-01, -0.78439523E-04, 0.13008750E-03, 0.61065599E-04, -0.25850466E-04, -0.25288039E-03, 0.33551134E-03, 0.11199110E-03, 0.11248745E-03, -0.25475572E-03, -0.13306399E-03, 0.71935286E-03, -0.72546105E-03, 0.70682967E-04, 0.};
  int ientry = 0;
  int i;
  if (ientry == 0) {
    ientry = 1;
    for (i = 0; i < m; i++) {
      if (xmin[i] == xmax[i])
        continue;
      scale[i] = 2. / (xmax[i] - xmin[i]);
    }
  }
  float x1 = 1. + (x[0] - xmax[0]) * scale[0];
  float dx1 = dx[0] * scale[0];
  float x2 = 1. + (x[1] - xmax[1]) * scale[1];
  float dx2 = dx[1] * scale[1];
  float x3 = 1. + (x[2] - xmax[2]) * scale[2];
  float dx3 = dx[2] * scale[2];
  float x4 = 1. + (x[3] - xmax[3]) * scale[3];
  float dx4 = dx[3] * scale[3];
  float x11 = x1;
  float x12 = x11 * x1;
  float x21 = x2;
  float x22 = x21 * x2;
  float x23 = x22 * x2;
  float x31 = x3;
  float x32 = x31 * x3;
  float x33 = x32 * x3;
  float x41 = x4;
  float x42 = x41 * x4;
  float x43 = x42 * x4;
  float v_target_phi = avdat + coeff[0] + coeff[1] * x11 + coeff[2] * x31 + coeff[3] * x11 * x21 + coeff[4] * x21 * x31 + coeff[5] * x11 * x41 + coeff[6] * x31 * x41 + coeff[7] * x21;
  v_target_phi = v_target_phi + coeff[8] * x41 + coeff[9] * x31 * x42 + coeff[10] * x11 * x22 + coeff[11] * x11 * x21 * x32 + coeff[12] * x21 * x33 + coeff[13] * x11 * x43 + coeff[14] * x11 * x23 + coeff[15] * x11 * x22 * x41 + coeff[16] * x12 * x31 * x41;
  v_target_phi = v_target_phi + coeff[17] * x11 * x32 * x41 + coeff[18] * x33 * x41 + coeff[19] * x21 * x31 * x42;
  float dxall = 0 + dx1 + dx2 + dx3 + dx4;
  float dv_target_phi = dxall == 0 ? 0 : sqrt(+dx1 * dx1 * pow(0 + coeff[1] + coeff[3] * x21 + coeff[5] * x41 + coeff[10] * x22 + coeff[11] * x21 * x32 + coeff[13] * x43 + coeff[14] * x23 + coeff[15] * x22 * x41 + 2 * coeff[16] * x11 * x31 * x41 + coeff[17] * x32 * x41, 2) + dx2 * dx2 * pow(0 + coeff[3] * x11 + coeff[4] * x31 + coeff[7] + 2 * coeff[10] * x21 * x11 + coeff[11] * x11 * x32 + coeff[12] * x33 + 3 * coeff[14] * x22 * x11 + 2 * coeff[15] * x21 * x11 * x41 + coeff[19] * x31 * x42, 2) + dx3 * dx3 * pow(0 + coeff[2] + coeff[4] * x21 + coeff[6] * x41 + coeff[9] * x42 + 2 * coeff[11] * x31 * x11 * x21 + 3 * coeff[12] * x32 * x21 + coeff[16] * x12 * x41 + 2 * coeff[17] * x31 * x11 * x41 + 3 * coeff[18] * x32 * x41 + coeff[19] * x21 * x42, 2) + dx4 * dx4 * pow(0 + coeff[5] * x11 + coeff[6] * x31 + coeff[8] + 2 * coeff[9] * x41 * x31 + 3 * coeff[13] * x42 * x11 + coeff[15] * x11 * x22 + coeff[16] * x12 * x31 + coeff[17] * x11 * x32 + coeff[18] * x33 + 2 * coeff[19] * x41 * x21 * x31, 2));
  dx[0] = dv_target_phi;
  return v_target_phi;
}
```