user: 下面的汇编指令对应的C源代码是什么：

```asm
<ludcmp2>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %esi,%ebp
  push   %rbx
  mov    %rcx,%rbx
  sub    $0x68,%rsp
  mov    %rdi,0x18(%rsp)
  mov    %esi,%edi
  mov    %rdx,0x28(%rsp)
  mov    %rcx,0x58(%rsp)
  call   <dvector@plt>
  movsd  D12(%rip),%xmm5
  mov    %rax,%r12
  movsd  %xmm5,(%rbx)
  test   %ebp,%ebp
  jle    L233
  mov    0x18(%rsp),%rdi
  mov    %rax,%r15
  movslq %ebp,%rax
  mov    %ebp,0x10(%rsp)
  mov    %rax,0x48(%rsp)
  lea    0x0(,%rax,8),%rbx
  lea    -0x1(%rbp),%eax
  mov    $0xfffffffffffffff8,%rdx
  add    $0x8,%rdi
  mov    %eax,0x34(%rsp)
  pxor   %xmm4,%xmm4
  movq   D11(%rip),%xmm2
  mov    %rax,0x50(%rsp)
  shl    $0x3,%rax
  mov    %rdi,0x20(%rsp)
  sub    %rax,%rdx
  lea    (%rdi,%rax,1),%r14
  lea    0x8(%r12,%rax,1),%r13
  mov    %rdx,%rbp
  nopl   0x0(%rax,%rax,1)
L117:
  lea    0x0(%rbp,%r14,1),%rax
  movapd %xmm4,%xmm1
  nopl   0x0(%rax)
L143:
  movsd  (%rax),%xmm0
  add    $0x8,%rax
  andpd  %xmm2,%xmm0
  maxsd  %xmm1,%xmm0
  movapd %xmm0,%xmm1
  cmp    %r14,%rax
  jne    L143
  ucomisd %xmm4,%xmm0
  jp     L91
  je     L183
L91:
  movapd %xmm5,%xmm0
  add    $0x8,%r15
  add    %rbx,%r14
  divsd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%r15)
  cmp    %r13,%r15
  jne    L117
  mov    0x18(%rsp),%rax
  mov    0x10(%rsp),%ebp
  lea    0x8(%rbx),%r10
  xor    %r9d,%r9d
  movq   $0x0,0x10(%rsp)
  movq   D66(%rip),%xmm7
  xor    %r11d,%r11d
  lea    (%rax,%rbx,1),%rdi
  mov    %rax,0x8(%rsp)
  mov    %rax,%r8
  movsd  D50(%rip),%xmm6
  mov    %rdi,0x38(%rsp)
  mov    0x20(%rsp),%rdi
  movl   $0x0,0x30(%rsp)
  add    %rbx,%rdi
  mov    %rdi,0x40(%rsp)
  xor    %edi,%edi
  nopl   0x0(%rax,%rax,1)
L29:
  mov    0x20(%rsp),%rsi
  mov    0x18(%rsp),%r15
  lea    -0x1(%rdi),%eax
  movapd %xmm4,%xmm3
  add    0x10(%rsp),%rax
  mov    0x8(%rsp),%r13
  lea    (%rsi,%rax,8),%rcx
  sub    %r8,%r15
  mov    %r9,%rsi
  nopl   (%rax)
L185:
  movsd  0x0(%r13),%xmm1
  mov    %esi,%r14d
  test   %edi,%edi
  je     L158
  lea    (%r15,%r13,1),%rax
  mov    %r8,%rdx
  nopl   0x0(%rax)
L55:
  movsd  (%rax),%xmm0
  mulsd  (%rdx),%xmm0
  add    $0x8,%rax
  add    %rbx,%rdx
  subsd  %xmm0,%xmm1
  cmp    %rax,%rcx
  jne    L55
L158:
  movsd  %xmm1,0x0(%r13)
  andpd  %xmm2,%xmm1
  mulsd  (%r12,%rsi,8),%xmm1
  comisd %xmm3,%xmm1
  jb     L189
  movapd %xmm1,%xmm3
  mov    %r14d,%r11d
L189:
  add    $0x1,%rsi
  add    %rbx,%r13
  add    %rbx,%rcx
  cmp    %esi,%ebp
  jg     L185
  cmp    %edi,%r11d
  jne    L46
L1:
  mov    0x28(%rsp),%rax
  mov    %r11d,(%rax,%r9,4)
  mov    0x8(%rsp),%rax
  ucomisd (%rax),%xmm4
  jp     L121
  jne    L121
  movsd  %xmm6,(%rax)
L121:
  lea    0x1(%rdi),%r15d
  cmp    %r9d,0x34(%rsp)
  je     L122
  mov    0x8(%rsp),%rax
  movapd %xmm5,%xmm1
  divsd  (%rax),%xmm1
  cmp    %r15d,%ebp
  jle    L233
  mov    0x30(%rsp),%ecx
  mov    0x18(%rsp),%rsi
  mov    %r15d,%edx
  add    %ebp,%ecx
  movslq %ecx,%rax
  add    %r9,%rax
  lea    (%rsi,%rax,8),%rax
  nopl   0x0(%rax,%rax,1)
L59:
  movsd  (%rax),%xmm0
  add    $0x1,%edx
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  add    %rbx,%rax
  cmp    %edx,%ebp
  jne    L59
L217:
  add    $0x8,%r8
  movsd  (%r8),%xmm1
  xor    %eax,%eax
  mov    0x48(%rsp),%rsi
  mov    %r8,%r13
  add    %rsi,0x10(%rsp)
  lea    0x1(%rax),%r14d
  add    $0x1,%r9
  mov    %ecx,0x30(%rsp)
  mov    0x38(%rsp),%rsi
  add    %r10,0x8(%rsp)
  mov    0x40(%rsp),%rcx
  movsd  %xmm1,0x0(%r13)
  cmp    %edi,%eax
  je     L73
  nopl   0x0(%rax,%rax,1)
L235:
  movsd  (%rsi,%r9,8),%xmm1
  mov    %r8,%rdx
  mov    %rsi,%rax
  nopl   0x0(%rax)
L71:
  movsd  (%rax),%xmm0
  mulsd  (%rdx),%xmm0
  add    $0x8,%rax
  add    %rbx,%rdx
  subsd  %xmm0,%xmm1
  cmp    %rcx,%rax
  jne    L71
  add    %rbx,%r13
  mov    %r14d,%eax
  add    %rbx,%rsi
  add    %r10,%rcx
  movsd  %xmm1,0x0(%r13)
  lea    0x1(%rax),%r14d
  cmp    %edi,%eax
  jne    L235
L73:
  mov    %r15d,%edi
  jmp    L29
L122:
  cmp    %r15d,%ebp
  jle    L233
  mov    0x30(%rsp),%eax
  lea    (%rax,%rbp,1),%ecx
  jmp    L217
L46:
  mov    %r11d,%esi
  mov    0x50(%rsp),%rcx
  mov    0x18(%rsp),%rax
  imul   %ebp,%esi
  movslq %esi,%rsi
  lea    (%rsi,%rcx,1),%rdx
  mov    0x20(%rsp),%rcx
  lea    (%rax,%rsi,8),%rax
  lea    (%rcx,%rdx,8),%rcx
  mov    0x10(%rsp),%rdx
  sub    %rsi,%rdx
  nopl   0x0(%rax,%rax,1)
L34:
  movsd  (%rax),%xmm0
  movsd  (%rax,%rdx,8),%xmm1
  movsd  %xmm1,(%rax)
  movsd  %xmm0,(%rax,%rdx,8)
  add    $0x8,%rax
  cmp    %rax,%rcx
  jne    L34
  mov    0x58(%rsp),%rax
  movsd  (%rax),%xmm0
  xorpd  %xmm7,%xmm0
  movsd  %xmm0,(%rax)
  movsd  (%r12,%r9,8),%xmm0
  movslq %r11d,%rax
  movsd  %xmm0,(%r12,%rax,8)
  jmp    L1
L183:
  lea    D44(%rip),%rdi
  movsd  %xmm0,0x8(%rsp)
  call   <error@plt>
  mov    D12(%rip),%rax
  movsd  0x8(%rsp),%xmm1
  pxor   %xmm4,%xmm4
  movq   D11(%rip),%xmm2
  movq   %rax,%xmm5
  jmp    L91
L233:
  add    $0x68,%rsp
  mov    %r12,%rdi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1070 <free@plt>
```

tool_calls: name: unpack_data
arguments: label: D12
datatype: f64
name: unpack_data
arguments: label: D11
datatype: qword
name: unpack_data
arguments: label: D66
datatype: f32[2]
name: unpack_data
arguments: label: D50
datatype: byte[8]
name: unpack_data
arguments: label: D44
datatype: string

tool: D12: 1

tool: D11: 9223372036854775807

tool: {"D66": [0.0,-0.0]}

tool: {"D50": [0x23,0x42,0x92,0x0c,0xa1,0x9c,0xc7,0x3b]}

tool: D44: Singular matrix in routine ludcmp

assistant: ```c
void ludcmp2(double *a, int n, int *indx, double *d) {
  int i, imax, j, k;
  double big, dum, sum, temp;
  double *vv;
  imax = 0;
  vv = dvector(n);
  *d = 1.0;
  for (i = 0; i < n; i++) {
    big = 0.0;
    for (j = 0; j < n; j++)
      if ((temp = fabs(a[i * n + j])) > big)
        big = temp;
    if (big == 0.0)
      error("Singular matrix in routine ludcmp");
    vv[i] = 1.0 / big;
  }
  for (j = 0; j < n; j++) {
    for (i = 0; i < j; i++) {
      sum = a[i * n + j];
      for (k = 0; k < i; k++)
        sum -= a[i * n + k] * a[k * n + j];
      a[i * n + j] = sum;
    }
    big = 0.0;
    for (i = j; i < n; i++) {
      sum = a[i * n + j];
      for (k = 0; k < j; k++)
        sum -= a[i * n + k] * a[k * n + j];
      a[i * n + j] = sum;
      if ((dum = vv[i] * fabs(sum)) >= big) {
        big = dum;
        imax = i;
      }
    }
    if (j != imax) {
      for (k = 0; k < n; k++) {
        dum = a[imax * n + k];
        a[imax * n + k] = a[j * n + k];
        a[j * n + k] = dum;
      }
      *d = -(*d);
      vv[imax] = vv[j];
    }
    indx[j] = imax;
    if (a[j * n + j] == 0.0)
      a[j * n + j] = 1.0e-20;
    if (j != n - 1) {
      dum = 1.0 / (a[j * n + j]);
      for (i = j + 1; i < n; i++)
        a[i * n + j] *= dum;
    }
  }
  free(vv);
}
```