user: 请从给定的汇编指令推导出C源代码:

```asm
<rkStep>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  mov    %rsi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdx,-0x68(%rbp)
  mov    %edi,-0x44(%rbp)
  mov    %rsp,%rcx
  movsd  %xmm0,-0x60(%rbp)
  movsd  %xmm1,-0x50(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  movslq %edi,%rax
  mov    %rax,-0x80(%rbp)
  lea    0xf(,%rax,8),%rax
  mov    %rax,%rsi
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rsi
  and    $0xfffffffffffffff0,%rdx
  sub    %rsi,%rcx
  cmp    %rcx,%rsp
  je     L154
L16:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rcx,%rsp
  jne    L16
L154:
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  jne    L137
L8:
  mov    %rax,%rdi
  mov    %rsp,%rsi
  mov    %rax,%rcx
  mov    %rsp,%r13
  and    $0xfffffffffffff000,%rdi
  and    $0xfffffffffffffff0,%rcx
  sub    %rdi,%rsi
  cmp    %rsi,%rsp
  je     L215
L399:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rsi,%rsp
  jne    L399
L215:
  and    $0xfff,%ecx
  sub    %rcx,%rsp
  test   %rcx,%rcx
  jne    L352
L5:
  mov    %rax,%rdi
  mov    %rsp,%rsi
  mov    %rax,%rcx
  mov    %rsp,%rbx
  and    $0xfffffffffffff000,%rdi
  and    $0xfffffffffffffff0,%rcx
  sub    %rdi,%rsi
  cmp    %rsi,%rsp
  je     L80
L176:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rsi,%rsp
  jne    L176
L80:
  and    $0xfff,%ecx
  sub    %rcx,%rsp
  test   %rcx,%rcx
  je     L387
  orq    $0x0,-0x8(%rsp,%rcx,1)
L387:
  mov    %rax,%rdi
  mov    %rsp,%rsi
  mov    %rax,%rcx
  mov    %rsp,%r12
  and    $0xfffffffffffff000,%rdi
  and    $0xfffffffffffffff0,%rcx
  sub    %rdi,%rsi
  cmp    %rsi,%rsp
  je     L269
L256:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rsi,%rsp
  jne    L256
L269:
  and    $0xfff,%ecx
  sub    %rcx,%rsp
  test   %rcx,%rcx
  je     L393
  orq    $0x0,-0x8(%rsp,%rcx,1)
L393:
  mov    %rax,%rcx
  mov    %rsp,%rsi
  and    $0xfffffffffffff000,%rax
  mov    %rsp,-0x78(%rbp)
  sub    %rax,%rsi
  and    $0xfffffffffffffff0,%rcx
  cmp    %rsi,%rsp
  je     L232
L101:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rsi,%rsp
  jne    L101
L232:
  mov    %rcx,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L182
  orq    $0x0,-0x8(%rsp,%rax,1)
L182:
  movsd  -0x60(%rbp),%xmm0
  mov    %r13,%rsi
  mov    %r15,%rdi
  mov    %rsp,%r14
  call   <kepler@plt>
  mov    -0x44(%rbp),%eax
  test   %eax,%eax
  jle    L219
  movsd  -0x50(%rbp),%xmm1
  mulsd  D1(%rip),%xmm1
  cmp    $0x1,%eax
  je     L157
  shr    %eax
  movapd %xmm1,%xmm2
  mov    %eax,%ecx
  unpcklpd %xmm2,%xmm2
  xor    %eax,%eax
  shl    $0x4,%rcx
  nopl   (%rax)
L79:
  movupd 0x0(%r13,%rax,1),%xmm0
  movupd (%r15,%rax,1),%xmm3
  mulpd  %xmm2,%xmm0
  addpd  %xmm3,%xmm0
  movups %xmm0,(%r14,%rax,1)
  add    $0x10,%rax
  cmp    %rcx,%rax
  jne    L79
  mov    -0x44(%rbp),%esi
  mov    %esi,%eax
  and    $0xfffffffe,%eax
  cmp    %eax,%esi
  je     L19
L370:
  cltq
  movapd %xmm1,%xmm0
  mov    %rbx,%rsi
  mov    %r14,%rdi
  mulsd  0x0(%r13,%rax,8),%xmm0
  movsd  %xmm1,-0x70(%rbp)
  addsd  (%r15,%rax,8),%xmm0
  movsd  %xmm0,(%r14,%rax,8)
  movsd  -0x60(%rbp),%xmm0
  call   <kepler@plt>
  cmpl   $0x1,-0x44(%rbp)
  movsd  -0x70(%rbp),%xmm1
  je     L195
  movapd %xmm1,%xmm2
  unpcklpd %xmm2,%xmm2
L35:
  mov    -0x44(%rbp),%ecx
  xor    %eax,%eax
  shr    %ecx
  shl    $0x4,%rcx
  nopl   0x0(%rax,%rax,1)
L201:
  movupd (%rbx,%rax,1),%xmm0
  movupd (%r15,%rax,1),%xmm4
  mulpd  %xmm2,%xmm0
  addpd  %xmm4,%xmm0
  movups %xmm0,(%r14,%rax,1)
  add    $0x10,%rax
  cmp    %rcx,%rax
  jne    L201
  mov    -0x44(%rbp),%edi
  mov    %edi,%eax
  and    $0xfffffffe,%eax
  cmp    %edi,%eax
  je     L40
L192:
  cltq
  movsd  -0x60(%rbp),%xmm0
  mov    %r12,%rsi
  mov    %r14,%rdi
  mulsd  (%rbx,%rax,8),%xmm1
  addsd  (%r15,%rax,8),%xmm1
  movsd  %xmm1,(%r14,%rax,8)
  call   <kepler@plt>
  cmpl   $0x1,-0x44(%rbp)
  je     L30
L158:
  mov    -0x44(%rbp),%ecx
  movsd  -0x50(%rbp),%xmm1
  xor    %eax,%eax
  shr    %ecx
  unpcklpd %xmm1,%xmm1
  shl    $0x4,%rcx
  nopw   0x0(%rax,%rax,1)
L343:
  movupd (%r12,%rax,1),%xmm0
  movupd (%r15,%rax,1),%xmm5
  mulpd  %xmm1,%xmm0
  addpd  %xmm5,%xmm0
  movups %xmm0,(%r14,%rax,1)
  add    $0x10,%rax
  cmp    %rcx,%rax
  jne    L343
  mov    -0x44(%rbp),%edx
  mov    %edx,%eax
  and    $0xfffffffe,%eax
  and    $0x1,%edx
  je     L252
L69:
  cltq
  movsd  -0x50(%rbp),%xmm0
  mulsd  (%r12,%rax,8),%xmm0
  addsd  (%r15,%rax,8),%xmm0
  movsd  %xmm0,(%r14,%rax,8)
L252:
  mov    -0x78(%rbp),%rsi
  movsd  -0x60(%rbp),%xmm0
  mov    %r14,%rdi
  call   <kepler@plt>
  lea    0x8(%r15),%rax
  cmp    %rax,-0x68(%rbp)
  je     L97
  cmpl   $0x1,-0x44(%rbp)
  je     L97
  mov    -0x44(%rbp),%ecx
  movsd  -0x50(%rbp),%xmm2
  xor    %eax,%eax
  movapd D16(%rip),%xmm1
  shr    %ecx
  unpcklpd %xmm2,%xmm2
  shl    $0x4,%rcx
  nopl   (%rax)
L179:
  movupd (%rbx,%rax,1),%xmm7
  movupd (%r12,%rax,1),%xmm0
  mov    -0x78(%rbp),%rdx
  movupd (%r15,%rax,1),%xmm4
  addpd  %xmm7,%xmm0
  movupd 0x0(%r13,%rax,1),%xmm7
  mov    -0x68(%rbp),%rdi
  movupd (%rdx,%rax,1),%xmm6
  addpd  %xmm0,%xmm0
  movaps %xmm6,-0x60(%rbp)
  addpd  %xmm7,%xmm0
  addpd  %xmm6,%xmm0
  mulpd  %xmm2,%xmm0
  divpd  %xmm1,%xmm0
  addpd  %xmm4,%xmm0
  movups %xmm0,(%rdi,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rcx
  jne    L179
  mov    -0x44(%rbp),%esi
  mov    %esi,%eax
  and    $0xfffffffe,%eax
  and    $0x1,%esi
  je     L3
  mov    %eax,%ecx
  cltq
  movsd  (%r12,%rax,8),%xmm0
  addsd  (%rbx,%rax,8),%xmm0
  addsd  %xmm0,%xmm0
  addsd  0x0(%r13,%rax,8),%xmm0
  addsd  (%rdx,%rax,8),%xmm0
  mulsd  -0x50(%rbp),%xmm0
  divsd  D16(%rip),%xmm0
  addsd  (%r15,%rcx,8),%xmm0
  mov    -0x68(%rbp),%rax
  movsd  %xmm0,(%rax,%rcx,8)
L3:
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L133
  lea    -0x28(%rbp),%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
  xchg   %ax,%ax
L137:
  orq    $0x0,-0x8(%rsp,%rdx,1)
  jmp    L8
L352:
  orq    $0x0,-0x8(%rsp,%rcx,1)
  jmp    L5
  cs nopw 0x0(%rax,%rax,1)
L30:
  xor    %eax,%eax
  jmp    L69
  nopw   0x0(%rax,%rax,1)
L195:
  xor    %eax,%eax
  jmp    L192
  nopw   0x0(%rax,%rax,1)
L40:
  movsd  -0x60(%rbp),%xmm0
  mov    %r12,%rsi
  mov    %r14,%rdi
  call   <kepler@plt>
  jmp    L158
  nopl   (%rax)
L19:
  movsd  -0x60(%rbp),%xmm0
  mov    %rbx,%rsi
  mov    %r14,%rdi
  movsd  %xmm1,-0x70(%rbp)
  movaps %xmm2,-0x90(%rbp)
  call   <kepler@plt>
  movsd  -0x70(%rbp),%xmm1
  movapd -0x90(%rbp),%xmm2
  jmp    L35
  cs nopw 0x0(%rax,%rax,1)
L97:
  movsd  D16(%rip),%xmm1
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L111:
  movsd  (%r12,%rax,8),%xmm0
  addsd  (%rbx,%rax,8),%xmm0
  mov    -0x78(%rbp),%rsi
  addsd  %xmm0,%xmm0
  addsd  0x0(%r13,%rax,8),%xmm0
  addsd  (%rsi,%rax,8),%xmm0
  mulsd  -0x50(%rbp),%xmm0
  mov    -0x68(%rbp),%rsi
  divsd  %xmm1,%xmm0
  addsd  (%r15,%rax,8),%xmm0
  movsd  %xmm0,(%rsi,%rax,8)
  add    $0x1,%rax
  cmp    %rax,-0x80(%rbp)
  jne    L111
  jmp    L3
L219:
  movsd  -0x60(%rbp),%xmm0
  mov    %rbx,%rsi
  mov    %r14,%rdi
  call   <kepler@plt>
  movsd  -0x60(%rbp),%xmm0
  mov    %r12,%rsi
  mov    %r14,%rdi
  call   <kepler@plt>
  mov    -0x78(%rbp),%rsi
  movsd  -0x60(%rbp),%xmm0
  mov    %r14,%rdi
  call   <kepler@plt>
  jmp    L3
L157:
  xor    %eax,%eax
  jmp    L370
L133:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: label: D1
datatype: f64
name: retrieve_data
arguments: label: D16
datatype: f64[2]

tool: D1: 0.5

tool: {"D16": [6.0,6.0]}

assistant: ```c
int rkStep(int neqn, double *y, double *yp, double t, double dt) {
  double k1[neqn], k2[neqn], k3[neqn], k4[neqn], yt[neqn];
  int i;
  kepler(t, y, k1);
  for (i = 0; i < neqn; i++) {
    yt[i] = y[i] + 0.5 * dt * k1[i];
  }
  kepler(t, yt, k2);
  for (i = 0; i < neqn; i++) {
    yt[i] = y[i] + 0.5 * dt * k2[i];
  }
  kepler(t, yt, k3);
  for (i = 0; i < neqn; i++) {
    yt[i] = y[i] + dt * k3[i];
  }
  kepler(t, yt, k4);
  for (i = 0; i < neqn; i++) {
    yp[i] = y[i] + dt * (k1[i] + 2.0 * (k2[i] + k3[i]) + k4[i]) / 6.0;
  }
  return 0;
}
```