user: What is the c source code of the assembly code below:

```asm
<lkep_drift3>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xd0,%rsp
  movsd  %xmm0,0x10(%rsp)
  mov    %rdi,%rbp
  mov    %rsi,%r12
  movsd  %xmm1,0x38(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0xc8(%rsp)
  xor    %eax,%eax
  mov    (%rdi),%rbx
  mov    0x8(%rdi),%r14
  mov    0x10(%rdi),%r13
  movq   %rbx,%xmm0
  mulsd  %xmm0,%xmm0
  movq   %r14,%xmm1
  mulsd  %xmm1,%xmm1
  addsd  %xmm1,%xmm0
  movq   %r13,%xmm1
  mulsd  %xmm1,%xmm1
  addsd  %xmm1,%xmm0
  pxor   %xmm1,%xmm1
  ucomisd %xmm0,%xmm1
  ja     L69
  sqrtsd %xmm0,%xmm0
  movsd  %xmm0,0x8(%rsp)
L178:
  movsd  (%r12),%xmm0
  movsd  0x8(%r12),%xmm3
  movsd  0x10(%r12),%xmm2
  movq   %rbx,%xmm1
  mulsd  %xmm0,%xmm1
  movq   %r14,%xmm4
  mulsd  %xmm3,%xmm4
  addsd  %xmm4,%xmm1
  movq   %r13,%xmm4
  mulsd  %xmm2,%xmm4
  addsd  %xmm4,%xmm1
  movsd  %xmm1,0x20(%rsp)
  movsd  0x10(%rsp),%xmm5
  movapd %xmm5,%xmm1
  addsd  %xmm5,%xmm1
  divsd  0x8(%rsp),%xmm1
  mulsd  %xmm0,%xmm0
  mulsd  %xmm3,%xmm3
  addsd  %xmm3,%xmm0
  mulsd  %xmm2,%xmm2
  addsd  %xmm2,%xmm0
  subsd  %xmm0,%xmm1
  movsd  %xmm1,(%rsp)
  comisd D89(%rip),%xmm1
  ja     L65
  pxor   %xmm6,%xmm6
  movsd  %xmm6,0x78(%rsp)
L74:
  movsd  0x8(%rsp),%xmm0
  mulsd  D20(%rip),%xmm0
  movsd  0x38(%rsp),%xmm6
  divsd  %xmm0,%xmm6
  movsd  %xmm6,0x18(%rsp)
  mov    $0xe,%ebx
L23:
  movsd  0x18(%rsp),%xmm7
  movapd %xmm7,%xmm0
  movsd  (%rsp),%xmm6
  mulsd  %xmm6,%xmm0
  mulsd  %xmm7,%xmm0
  movsd  D193(%rip),%xmm2
  addsd  %xmm0,%xmm2
  divsd  %xmm2,%xmm0
  comisd D25(%rip),%xmm0
  ja     L91
  sub    $0x1,%ebx
  je     L176
  movapd %xmm6,%xmm1
  addsd  %xmm6,%xmm1
  mulsd  %xmm7,%xmm1
  divsd  %xmm2,%xmm1
  divsd  %xmm2,%xmm1
  movsd  %xmm1,0x58(%rsp)
  movapd %xmm0,%xmm5
  addsd  %xmm0,%xmm5
  movsd  D193(%rip),%xmm4
  subsd  %xmm5,%xmm4
  movsd  %xmm4,0x40(%rsp)
  movsd  D193(%rip),%xmm3
  subsd  %xmm0,%xmm3
  movsd  %xmm3,0x28(%rsp)
  addsd  %xmm3,%xmm3
  movapd %xmm3,%xmm1
  mulsd  %xmm7,%xmm1
  movapd %xmm1,%xmm7
  mulsd  D79(%rip),%xmm1
  mulsd  %xmm7,%xmm1
  mulsd  %xmm7,%xmm1
  mulsd  %xmm7,%xmm1
  movapd %xmm1,%xmm11
  movsd  %xmm7,0x48(%rsp)
  mulsd  %xmm7,%xmm11
  movsd  %xmm11,0x30(%rsp)
  call   <G_func2@plt>
  movapd %xmm0,%xmm2
  movsd  0x40(%rsp),%xmm4
  movapd %xmm4,%xmm1
  addsd  %xmm4,%xmm1
  mulsd  %xmm1,%xmm4
  subsd  D193(%rip),%xmm4
  movapd %xmm1,%xmm5
  movsd  0x48(%rsp),%xmm7
  mulsd  %xmm7,%xmm5
  movapd %xmm7,%xmm1
  addsd  %xmm7,%xmm1
  mulsd  %xmm7,%xmm1
  movapd %xmm1,%xmm7
  movsd  %xmm1,0x88(%rsp)
  movsd  %xmm4,0x60(%rsp)
  movapd %xmm4,%xmm0
  movsd  0x8(%rsp),%xmm12
  mulsd  %xmm12,%xmm0
  movsd  0x20(%rsp),%xmm8
  movapd %xmm8,%xmm1
  mulsd  %xmm5,%xmm1
  addsd  %xmm1,%xmm0
  movsd  0x10(%rsp),%xmm9
  movapd %xmm9,%xmm1
  mulsd  %xmm7,%xmm1
  addsd  %xmm1,%xmm0
  movapd %xmm0,%xmm10
  movsd  D20(%rip),%xmm6
  mulsd  0x28(%rsp),%xmm6
  movapd %xmm5,%xmm1
  mulsd  %xmm12,%xmm1
  movapd %xmm8,%xmm0
  mulsd  %xmm7,%xmm0
  movapd %xmm1,%xmm13
  addsd  %xmm0,%xmm13
  movsd  %xmm13,0x80(%rsp)
  movsd  0x30(%rsp),%xmm11
  mulsd  %xmm2,%xmm11
  movapd %xmm11,%xmm0
  addsd  0x78(%rsp),%xmm0
  mulsd  (%rsp),%xmm0
  movsd  %xmm5,0x40(%rsp)
  movapd %xmm5,%xmm1
  mulsd  %xmm7,%xmm1
  divsd  D26(%rip),%xmm1
  addsd  %xmm1,%xmm0
  mulsd  %xmm9,%xmm0
  addsd  %xmm13,%xmm0
  movapd %xmm0,%xmm3
  movsd  %xmm0,0x68(%rsp)
  subsd  0x38(%rsp),%xmm3
  movsd  %xmm6,0x50(%rsp)
  movapd %xmm6,%xmm4
  movsd  %xmm10,0x48(%rsp)
  mulsd  %xmm10,%xmm4
  movsd  %xmm3,0x70(%rsp)
  movapd %xmm3,%xmm7
  mulsd  D123(%rip),%xmm7
  movq   %xmm7,%r14
  movsd  %xmm4,0x30(%rsp)
  movapd %xmm4,%xmm0
  call   <dsignum@plt>
  movq   %xmm0,%r13
  movsd  0x30(%rsp),%xmm3
  movapd %xmm3,%xmm2
  mulsd  D210(%rip),%xmm2
  movapd %xmm2,%xmm1
  mulsd  %xmm3,%xmm1
  movsd  (%rsp),%xmm2
  mulsd  0x8(%rsp),%xmm2
  movsd  0x10(%rsp),%xmm9
  subsd  %xmm2,%xmm9
  movapd %xmm9,%xmm0
  mulsd  0x40(%rsp),%xmm0
  movsd  0x60(%rsp),%xmm2
  mulsd  0x20(%rsp),%xmm2
  addsd  %xmm2,%xmm0
  mulsd  0x50(%rsp),%xmm0
  mulsd  0x28(%rsp),%xmm0
  movsd  0x58(%rsp),%xmm2
  mulsd  0x48(%rsp),%xmm2
  subsd  %xmm2,%xmm0
  mulsd  D20(%rip),%xmm0
  movsd  0x70(%rsp),%xmm2
  mulsd  D65(%rip),%xmm2
  mulsd  %xmm2,%xmm0
  subsd  %xmm0,%xmm1
  andpd  D4(%rip),%xmm1
  movapd %xmm1,%xmm0
  pxor   %xmm1,%xmm1
  ucomisd %xmm0,%xmm1
  ja     L45
  sqrtsd %xmm0,%xmm0
L103:
  movq   %r13,%xmm6
  mulsd  %xmm6,%xmm0
  addsd  0x30(%rsp),%xmm0
  movq   %r14,%xmm1
  divsd  %xmm0,%xmm1
  addsd  0x18(%rsp),%xmm1
  movsd  %xmm1,0x18(%rsp)
  movsd  0x38(%rsp),%xmm6
  movapd %xmm6,%xmm0
  subsd  0x68(%rsp),%xmm0
  divsd  %xmm6,%xmm0
  andpd  D4(%rip),%xmm0
  comisd D180(%rip),%xmm0
  ja     L23
  movsd  0x10(%rsp),%xmm6
  movapd %xmm6,%xmm0
  movsd  0x8(%rsp),%xmm2
  divsd  %xmm2,%xmm0
  movsd  0x88(%rsp),%xmm7
  mulsd  %xmm7,%xmm0
  movsd  D193(%rip),%xmm4
  movapd %xmm4,%xmm5
  subsd  %xmm0,%xmm5
  movapd %xmm6,%xmm3
  xorpd  D121(%rip),%xmm3
  mulsd  0x40(%rsp),%xmm3
  movsd  0x48(%rsp),%xmm1
  mulsd  %xmm1,%xmm2
  divsd  %xmm2,%xmm3
  divsd  %xmm1,%xmm6
  movapd %xmm6,%xmm0
  mulsd  %xmm7,%xmm0
  subsd  %xmm0,%xmm4
  mov    $0x0,%eax
  movsd  0x80(%rsp),%xmm7
L119:
  movsd  0x0(%rbp,%rax,1),%xmm0
  movsd  (%r12,%rax,1),%xmm1
  movapd %xmm0,%xmm6
  mulsd  %xmm5,%xmm6
  movapd %xmm7,%xmm2
  mulsd  %xmm1,%xmm2
  addsd  %xmm6,%xmm2
  movsd  %xmm2,0x90(%rsp,%rax,1)
  mulsd  %xmm3,%xmm0
  mulsd  %xmm4,%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,0xb0(%rsp,%rax,1)
  add    $0x8,%rax
  cmp    $0x18,%rax
  jne    L119
  mov    $0x0,%eax
L156:
  movsd  0x90(%rsp,%rax,1),%xmm0
  movsd  %xmm0,0x0(%rbp,%rax,1)
  movsd  0xb0(%rsp,%rax,1),%xmm0
  movsd  %xmm0,(%r12,%rax,1)
  add    $0x8,%rax
  cmp    $0x18,%rax
  jne    L156
  mov    $0x0,%eax
  jmp    L170
L69:
  call   <sqrt@plt>
  movsd  %xmm0,0x8(%rsp)
  jmp    L178
L65:
  mulsd  D182(%rip),%xmm5
  movq   %xmm5,%rbx
  movapd %xmm1,%xmm0
  mulsd  %xmm1,%xmm0
  mulsd  %xmm1,%xmm0
  movapd %xmm0,%xmm6
  movsd  %xmm0,0x18(%rsp)
  pxor   %xmm0,%xmm0
  ucomisd %xmm6,%xmm0
  ja     L121
  movapd %xmm6,%xmm0
  sqrtsd %xmm0,%xmm0
L68:
  movq   %rbx,%xmm1
  divsd  %xmm0,%xmm1
  movapd %xmm1,%xmm0
  mulsd  D25(%rip),%xmm0
  addsd  0x38(%rsp),%xmm0
  movsd  0x20(%rsp),%xmm3
  movapd %xmm3,%xmm2
  addsd  %xmm3,%xmm2
  divsd  (%rsp),%xmm2
  subsd  %xmm2,%xmm0
  divsd  %xmm1,%xmm0
  call   <floor@plt>
  add    %eax,%eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  mulsd  D14(%rip),%xmm0
  movq   %xmm0,%rbx
  movsd  0x18(%rsp),%xmm0
  movsd  (%rsp),%xmm5
  mulsd  %xmm5,%xmm0
  mulsd  %xmm5,%xmm0
  pxor   %xmm1,%xmm1
  ucomisd %xmm0,%xmm1
  ja     L166
  sqrtsd %xmm0,%xmm0
L76:
  movq   %rbx,%xmm3
  divsd  %xmm0,%xmm3
  movsd  %xmm3,0x78(%rsp)
  jmp    L74
L121:
  movsd  0x18(%rsp),%xmm0
  call   <sqrt@plt>
  jmp    L68
L166:
  call   <sqrt@plt>
  jmp    L76
L45:
  call   <sqrt@plt>
  jmp    L103
L91:
  mov    $0xffffffff,%eax
  jmp    L170
L176:
  mov    $0xffffffff,%eax
L170:
  mov    0xc8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L133
  add    $0xd0,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L133:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_label: D89
type: f64[2]
name: disassemble_data
arguments: data_label: D20
type: byte[8]
name: disassemble_data
arguments: data_label: D193
type: byte[8]
name: disassemble_data
arguments: data_label: D25
type: f64[2]
name: disassemble_data
arguments: data_label: D79
type: byte[8]
name: disassemble_data
arguments: data_label: D26
type: f64
name: disassemble_data
arguments: data_label: D123
type: byte[8]
name: disassemble_data
arguments: data_label: D210
type: f64
name: disassemble_data
arguments: data_label: D65
type: byte[8]
name: disassemble_data
arguments: data_label: D4
type: qword[2]
name: disassemble_data
arguments: data_label: D180
type: byte[16]
name: disassemble_data
arguments: data_label: D121
type: byte[16]
name: disassemble_data
arguments: data_label: D182
type: byte[8]
name: disassemble_data
arguments: data_label: D14
type: f64

tool: {"D89": [0.0,-0.0]}

tool: {"D20": [0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x40]}

tool: {"D193": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0x3f]}

tool: {"D25": [0.5,3.141592653589793]}

tool: {"D79": [0x11,0x11,0x11,0x11,0x11,0x11,0xf1,0x3f]}

tool: D26: 3

tool: {"D123": [0x00,0x00,0x00,0x00,0x00,0x00,0x14,0xc0]}

tool: D210: 16

tool: {"D65": [0x00,0x00,0x00,0x00,0x00,0x00,0x34,0x40]}

tool: {"D4": [0x7fffffffffffffff,0x0000000000000000]}

tool: {"D180": [0xbb,0xbd,0xd7,0xd9,0xdf,0x7c,0xdb,0x3d,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D121": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D182": [0x18,0x2d,0x44,0x54,0xfb,0x21,0x19,0x40]}

tool: D14: 3.141592653589793

assistant: ```c
int lkep_drift3(double mu, double *r0, double *v0, double dt) {
  double r0mag, v0mag2;
  double r0v0;
  double rcalc, dtcalc, terr;
  double u;
  double beta;
  double P;
  double dU;
  int n;
  double q;
  double U0w2, U1w2;
  double U, U0, U1, U2, U3;
  double f, g, F, G;
  double r1[3], v1[3];
  int d;
  double ln = 5.0;
  int no_iter;
  double du, dqdu, drdu, fn, fnp, fnpp;
  r0mag = sqrt(r0[0] * r0[0] + r0[1] * r0[1] + r0[2] * r0[2]);
  v0mag2 = v0[0] * v0[0] + v0[1] * v0[1] + v0[2] * v0[2];
  r0v0 = r0[0] * v0[0] + r0[1] * v0[1] + r0[2] * v0[2];
  beta = 2 * mu / r0mag - v0mag2;
  if (beta > 0) {
    P = 2 * ((double)3.14159265358979323846264338327950288419716939937510) * mu / sqrt(beta * beta * beta);
    n = floor((dt + P / 2.0 - 2 * r0v0 / beta) / P);
    dU = 2 * n * ((double)3.14159265358979323846264338327950288419716939937510) / sqrt(beta * beta * beta * beta * beta);
  } else {
    dU = 0.0;
  }
  u = dt / (4 * r0mag);
  no_iter = 0;
  do {
    q = beta * u * u / (1 + beta * u * u);
    if (q > 0.5 || no_iter > 12)
      return -1;
    dqdu = 2 * beta * u / (1 + beta * u * u) / (1 + beta * u * u);
    U0w2 = 1 - 2 * q;
    U1w2 = 2 * (1 - q) * u;
    U = 16.0 / 15 * U1w2 * U1w2 * U1w2 * U1w2 * U1w2 * G_func2(q) + dU;
    U0 = 2 * U0w2 * U0w2 - 1;
    U1 = 2 * U0w2 * U1w2;
    U2 = 2 * U1w2 * U1w2;
    U3 = beta * U + U1 * U2 / 3.0;
    rcalc = r0mag * U0 + r0v0 * U1 + mu * U2;
    drdu = 4 * (1 - q) * (r0v0 * U0 + (mu - beta * r0mag) * U1);
    dtcalc = r0mag * U1 + r0v0 * U2 + mu * U3;
    fn = dtcalc - dt;
    fnp = 4 * (1 - q) * rcalc;
    fnpp = 4 * (drdu * (1 - q) - rcalc * dqdu);
    du = -ln * fn / (fnp + dsignum(fnp) * sqrt(fabs((ln - 1) * (ln - 1) * fnp * fnp - ln * (ln - 1) * fn * fnpp)));
    u += du;
    no_iter++;
    terr = fabs((dt - dtcalc) / dt);
  } while (terr > 1e-10);
  f = 1 - (mu / r0mag) * U2;
  g = r0mag * U1 + r0v0 * U2;
  F = -mu * U1 / (rcalc * r0mag);
  G = 1 - (mu / rcalc) * U2;
  for (d = 0; d < 3; d++) {
    r1[d] = f * r0[d] + g * v0[d];
    v1[d] = F * r0[d] + G * v0[d];
  }
  for (d = 0; d < 3; d++) {
    r0[d] = r1[d];
    v0[d] = v1[d];
  }
  return 0;
}
```