user: 这段汇编代码用C语言表示是什么样的：

```asm
<ctm_fitting>:
  endbr64
  push   %r15
  mov    %esi,%r15d
  xor    %esi,%esi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdx,%rbx
  mov    $0x48,%edx
  sub    $0x1b8,%rsp
  mov    %rdi,(%rsp)
  lea    0x50(%rsp),%r14
  lea    0x70(%rsp),%r13
  lea    0x90(%rsp),%r9
  lea    0x30(%rsp),%rbp
  mov    %r9,%rdi
  lea    0x10(%rsp),%r12
  mov    %fs:0x28,%rax
  mov    %rax,0x1a8(%rsp)
  xor    %eax,%eax
  mov    %r9,0x8(%rsp)
  call   <memset@plt>
  xor    %esi,%esi
  mov    $0x18,%edx
  mov    %r14,%rdi
  call   <memset@plt>
  xor    %esi,%esi
  mov    $0x18,%edx
  mov    %r13,%rdi
  call   <memset@plt>
  xor    %esi,%esi
  mov    $0x18,%edx
  mov    %rbp,%rdi
  call   <memset@plt>
  xor    %esi,%esi
  mov    $0x18,%edx
  mov    %r12,%rdi
  call   <memset@plt>
  mov    (%rsp),%rsi
  mov    %r15d,%edx
  mov    $0x4,%ecx
  lea    D25(%rip),%rdi
  call   <print_matrix@plt>
  test   %r15d,%r15d
  mov    (%rsp),%r8
  mov    0x8(%rsp),%r9
  jle    L18
  movsd  0x80(%rsp),%xmm2
  movsd  0x50(%rsp),%xmm10
  movsd  0x90(%rsp),%xmm12
  movsd  0x70(%rsp),%xmm7
  movsd  0x98(%rsp),%xmm5
  movsd  0x58(%rsp),%xmm9
  movsd  %xmm2,(%rsp)
  movsd  0xa0(%rsp),%xmm4
  movsd  0x60(%rsp),%xmm8
  movsd  0xb0(%rsp),%xmm11
  movsd  0x78(%rsp),%xmm6
  movsd  0xb8(%rsp),%xmm0
  cmp    $0x1,%r15d
  je     L14
  mov    %r15d,%edx
  mov    %r8,%rax
  shr    %edx
  sub    $0x1,%edx
  shl    $0x6,%rdx
  lea    0x40(%r8,%rdx,1),%rdx
  nopl   0x0(%rax)
L13:
  movupd (%rax),%xmm3
  movupd 0x20(%rax),%xmm1
  add    $0x40,%rax
  movupd -0x30(%rax),%xmm13
  movlpd -0x38(%rax),%xmm13
  movhpd -0x30(%rax),%xmm3
  movhpd -0x10(%rax),%xmm1
  movupd -0x10(%rax),%xmm14
  movlpd -0x18(%rax),%xmm14
  movapd %xmm3,%xmm2
  unpckhpd %xmm1,%xmm3
  unpcklpd %xmm1,%xmm2
  movapd %xmm13,%xmm1
  unpckhpd %xmm14,%xmm13
  unpcklpd %xmm14,%xmm1
  movapd %xmm2,%xmm14
  mulpd  %xmm2,%xmm14
  movapd %xmm14,%xmm15
  unpckhpd %xmm14,%xmm14
  addsd  %xmm12,%xmm15
  movapd %xmm15,%xmm12
  addsd  %xmm14,%xmm12
  movapd %xmm2,%xmm14
  mulpd  %xmm1,%xmm14
  movapd %xmm14,%xmm15
  unpckhpd %xmm14,%xmm14
  addsd  %xmm5,%xmm15
  movapd %xmm15,%xmm5
  movapd %xmm1,%xmm15
  mulpd  %xmm1,%xmm15
  addsd  %xmm14,%xmm5
  movsd  -0x40(%rax),%xmm14
  addsd  %xmm4,%xmm14
  movsd  -0x20(%rax),%xmm4
  addsd  %xmm14,%xmm4
  movapd %xmm15,%xmm14
  unpckhpd %xmm15,%xmm15
  addsd  %xmm11,%xmm14
  movapd %xmm14,%xmm11
  movsd  -0x38(%rax),%xmm14
  addsd  %xmm15,%xmm11
  addsd  %xmm14,%xmm0
  movsd  -0x18(%rax),%xmm14
  addsd  %xmm14,%xmm0
  movapd %xmm2,%xmm14
  mulpd  %xmm3,%xmm14
  mulpd  %xmm1,%xmm3
  mulpd  %xmm13,%xmm2
  mulpd  %xmm13,%xmm1
  movapd %xmm14,%xmm15
  unpckhpd %xmm14,%xmm14
  addsd  %xmm3,%xmm9
  unpckhpd %xmm3,%xmm3
  addsd  %xmm10,%xmm15
  addsd  %xmm3,%xmm9
  movsd  -0x30(%rax),%xmm3
  movapd %xmm15,%xmm10
  addsd  %xmm14,%xmm10
  addsd  %xmm8,%xmm3
  movsd  -0x10(%rax),%xmm8
  addsd  %xmm3,%xmm8
  movapd %xmm2,%xmm3
  unpckhpd %xmm2,%xmm2
  addsd  %xmm7,%xmm3
  movapd %xmm3,%xmm7
  addsd  %xmm2,%xmm7
  movapd %xmm1,%xmm2
  unpckhpd %xmm1,%xmm1
  addsd  %xmm6,%xmm2
  movapd %xmm2,%xmm6
  movsd  -0x8(%rax),%xmm2
  addsd  %xmm1,%xmm6
  movsd  -0x28(%rax),%xmm1
  addsd  (%rsp),%xmm1
  addsd  %xmm2,%xmm1
  movsd  %xmm1,(%rsp)
  cmp    %rax,%rdx
  jne    L13
  mov    %r15d,%eax
  and    $0xfffffffe,%eax
  test   $0x1,%r15b
  je     L36
L24:
  shl    $0x2,%eax
  cltq
  lea    (%r8,%rax,8),%rax
  movsd  (%rax),%xmm2
  movapd %xmm2,%xmm1
  movapd %xmm2,%xmm3
  movapd %xmm2,%xmm13
  mulsd  %xmm2,%xmm1
  addsd  %xmm2,%xmm4
  addsd  %xmm1,%xmm12
  movsd  0x8(%rax),%xmm1
  mulsd  %xmm1,%xmm3
  addsd  %xmm1,%xmm0
  addsd  %xmm3,%xmm5
  movapd %xmm1,%xmm3
  mulsd  %xmm1,%xmm3
  addsd  %xmm3,%xmm11
  movsd  0x10(%rax),%xmm3
  mulsd  %xmm3,%xmm13
  addsd  %xmm3,%xmm8
  addsd  %xmm13,%xmm10
  movapd %xmm1,%xmm13
  mulsd  %xmm3,%xmm13
  movsd  0x18(%rax),%xmm3
  mulsd  %xmm3,%xmm2
  mulsd  %xmm3,%xmm1
  addsd  (%rsp),%xmm3
  addsd  %xmm13,%xmm9
  movsd  %xmm3,(%rsp)
  addsd  %xmm2,%xmm7
  addsd  %xmm1,%xmm6
L36:
  movsd  %xmm7,0x70(%rsp)
  movsd  (%rsp),%xmm7
  movsd  %xmm12,0x90(%rsp)
  movsd  %xmm5,0x98(%rsp)
  movsd  %xmm4,0xa0(%rsp)
  movsd  %xmm11,0xb0(%rsp)
  movsd  %xmm0,0xb8(%rsp)
  movsd  %xmm10,0x50(%rsp)
  movsd  %xmm9,0x58(%rsp)
  movsd  %xmm8,0x60(%rsp)
  movsd  %xmm6,0x78(%rsp)
  movsd  %xmm7,0x80(%rsp)
L31:
  mov    %r9,%rsi
  mov    $0x3,%ecx
  movsd  %xmm0,0xc8(%rsp)
  pxor   %xmm0,%xmm0
  cvtsi2sd %r15d,%xmm0
  mov    $0x3,%edx
  lea    D15(%rip),%rdi
  movsd  %xmm5,0xa8(%rsp)
  movsd  %xmm4,0xc0(%rsp)
  movsd  %xmm0,0xd0(%rsp)
  call   <print_matrix@plt>
  mov    %r14,%rsi
  mov    $0x1,%ecx
  mov    $0x3,%edx
  lea    D42(%rip),%rdi
  lea    0xe0(%rsp),%r14
  call   <print_matrix@plt>
  mov    %r13,%rsi
  mov    $0x1,%ecx
  mov    $0x3,%edx
  lea    D10(%rip),%rdi
  lea    0x140(%rsp),%r13
  call   <print_matrix@plt>
  movapd 0x50(%rsp),%xmm7
  mov    $0x4,%ecx
  mov    %r14,%rsi
  movapd 0x90(%rsp),%xmm3
  mov    $0x3,%edx
  movapd 0xa0(%rsp),%xmm2
  lea    D19(%rip),%rdi
  movapd %xmm3,%xmm0
  unpcklpd %xmm3,%xmm2
  movhps 0xa8(%rsp),%xmm0
  movapd %xmm3,%xmm1
  movhps 0xb8(%rsp),%xmm2
  shufpd $0x1,%xmm3,%xmm1
  movhpd 0xb0(%rsp),%xmm1
  movapd %xmm1,%xmm4
  movapd %xmm2,%xmm3
  movapd %xmm0,%xmm2
  movhpd 0x50(%rsp),%xmm4
  unpcklpd %xmm3,%xmm2
  unpckhpd %xmm3,%xmm0
  movapd %xmm1,%xmm3
  movapd %xmm2,%xmm5
  unpckhpd %xmm7,%xmm3
  movapd 0x70(%rsp),%xmm7
  movapd %xmm2,%xmm6
  unpcklpd %xmm4,%xmm5
  movaps %xmm5,0xe0(%rsp)
  movapd %xmm2,%xmm5
  unpckhpd %xmm4,%xmm5
  movapd %xmm0,%xmm4
  movaps %xmm5,0xf0(%rsp)
  movsd  0x60(%rsp),%xmm5
  unpcklpd %xmm3,%xmm4
  movaps %xmm4,0x100(%rsp)
  movapd %xmm0,%xmm4
  movsd  %xmm5,0x138(%rsp)
  movapd %xmm1,%xmm5
  unpckhpd %xmm7,%xmm1
  unpckhpd %xmm3,%xmm4
  movhpd 0x70(%rsp),%xmm5
  movsd  0xd0(%rsp),%xmm3
  movaps %xmm4,0x110(%rsp)
  movapd 0xc0(%rsp),%xmm4
  unpckhpd %xmm5,%xmm2
  unpcklpd %xmm5,%xmm6
  movaps %xmm2,0x150(%rsp)
  movapd %xmm0,%xmm2
  unpckhpd %xmm1,%xmm0
  movaps %xmm0,0x170(%rsp)
  unpcklpd %xmm1,%xmm2
  movsd  0x80(%rsp),%xmm0
  movaps %xmm6,0x140(%rsp)
  movsd  %xmm0,0x198(%rsp)
  movaps %xmm4,0x120(%rsp)
  movsd  %xmm3,0x130(%rsp)
  movaps %xmm2,0x160(%rsp)
  movaps %xmm4,0x180(%rsp)
  movsd  %xmm3,0x190(%rsp)
  call   <print_matrix@plt>
  mov    $0x4,%ecx
  mov    %r13,%rsi
  mov    $0x3,%edx
  lea    D13(%rip),%rdi
  call   <print_matrix@plt>
  mov    $0x3,%edx
  mov    %r12,%rsi
  mov    %r14,%rdi
  call   <gauss1@plt>
  mov    $0x3,%edx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  call   <gauss1@plt>
  mov    $0x1,%ecx
  mov    %r12,%rsi
  mov    $0x3,%edx
  lea    D89(%rip),%rdi
  call   <print_matrix@plt>
  mov    $0x1,%ecx
  mov    %rbp,%rsi
  mov    $0x3,%edx
  lea    D57(%rip),%rdi
  call   <print_matrix@plt>
  movsd  0x20(%rsp),%xmm0
  mov    D31(%rip),%rax
  movapd 0x10(%rsp),%xmm7
  movapd 0x30(%rsp),%xmm6
  movsd  %xmm0,0x10(%rbx)
  movsd  0x40(%rsp),%xmm0
  mov    %rax,0x40(%rbx)
  movsd  %xmm0,0x28(%rbx)
  pxor   %xmm0,%xmm0
  movups %xmm7,(%rbx)
  movups %xmm6,0x18(%rbx)
  movups %xmm0,0x30(%rbx)
  mov    0x1a8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L43
  add    $0x1b8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopw   0x0(%rax,%rax,1)
L18:
  movsd  0x98(%rsp),%xmm5
  movsd  0xa0(%rsp),%xmm4
  movsd  0xb8(%rsp),%xmm0
  jmp    L31
L14:
  xor    %eax,%eax
  jmp    L24
L43:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: tag: D25
type_infered: string
name: parse_data
arguments: tag: D15
type_infered: string
name: parse_data
arguments: tag: D42
type_infered: string
name: parse_data
arguments: tag: D10
type_infered: string
name: parse_data
arguments: tag: D19
type_infered: string
name: parse_data
arguments: tag: D13
type_infered: string
name: parse_data
arguments: tag: D89
type_infered: string
name: parse_data
arguments: tag: D57
type_infered: string
name: parse_data
arguments: tag: D31
type_infered: byte[8]

tool: D25: XY

tool: D15: ata

tool: D42: atx

tool: D10: aty

tool: D19: ata\atx

tool: D13: ata\aty

tool: D89: abc

tool: D57: def

tool: {"D31": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0x3f]}

assistant: ```c
void ctm_fitting(double *xy, int cnt, double *coeff_return) {
  int i;
  double abc[3], def[3];
  double ata[9], atx[3], aty[3];
  memset(ata, 0, sizeof ata);
  ;
  memset(atx, 0, sizeof atx);
  ;
  memset(aty, 0, sizeof aty);
  ;
  memset(def, 0, sizeof def);
  ;
  memset(abc, 0, sizeof abc);
  ;
  print_matrix("XY", xy, cnt, 4);
  for (i = 0; i < cnt; i++) {
    double *xy1 = xy + 4 * i;
    ata[0] += xy1[0] * xy1[0];
    ata[1] += xy1[0] * xy1[1];
    ata[2] += xy1[0];
    ata[4] += xy1[1] * xy1[1];
    ata[5] += xy1[1];
    atx[0] += xy1[0] * xy1[2];
    atx[1] += xy1[1] * xy1[2];
    atx[2] += xy1[2];
    aty[0] += xy1[0] * xy1[3];
    aty[1] += xy1[1] * xy1[3];
    aty[2] += xy1[3];
  }
  ata[3] = ata[1];
  ata[6] = ata[2];
  ata[7] = ata[5];
  ata[8] = cnt;
  print_matrix("ata", ata, 3, 3);
  print_matrix("atx", atx, 3, 1);
  print_matrix("aty", aty, 3, 1);
  double bgauss1[4 * 3], bgauss2[4 * 3];
  for (i = 0; i < 3; i++) {
    double *b = bgauss1 + i * 4;
    double *a = ata + i * 3;
    double *x = atx + i;
    b[0] = a[0];
    b[1] = a[1];
    b[2] = a[2];
    b[3] = x[0];
  }
  for (i = 0; i < 3; i++) {
    double *b = bgauss2 + i * 4;
    double *a = ata + i * 3;
    double *x = aty + i;
    b[0] = a[0];
    b[1] = a[1];
    b[2] = a[2];
    b[3] = x[0];
  }
  print_matrix("ata\\atx", bgauss1, 3, 4);
  print_matrix("ata\\aty", bgauss2, 3, 4);
  gauss1(bgauss1, abc, 3);
  gauss1(bgauss2, def, 3);
  print_matrix("abc", abc, 3, 1);
  print_matrix("def", def, 3, 1);
  for (i = 0; i < 3; i++) {
    coeff_return[3 * 0 + i] = abc[i];
    coeff_return[3 * 1 + i] = def[i];
  }
  coeff_return[3 * 2 + 0] = 0;
  coeff_return[3 * 2 + 1] = 0;
  coeff_return[3 * 2 + 2] = 1;
}
```