user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<one_step_rk4>:
  endbr64
  push   %r14
  mov    %edx,%r14d
  push   %r13
  mov    %rsi,%r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rcx,%rbx
  sub    $0x20,%rsp
  movsd  (%rcx),%xmm6
  movsd  %xmm0,0x8(%rsp)
  movapd %xmm6,%xmm1
  movsd  %xmm6,(%rsp)
  call   <set_wieners@plt>
  mov    0x8(%r13),%rsi
  mov    %r14d,%edx
  mov    %rbp,%rdi
  movsd  (%rsp),%xmm0
  call   <my_rhs@plt>
  test   %r14d,%r14d
  movsd  0x8(%rsp),%xmm2
  jle    L1
  mov    0x8(%r13),%rsi
  mov    0x0(%r13),%rdx
  movslq %r14d,%r12
  xor    %eax,%eax
  mov    0x10(%r13),%rdi
  movsd  D16(%rip),%xmm1
  movsd  D2(%rip),%xmm3
  nopl   0x0(%rax,%rax,1)
L59:
  movsd  (%rsi,%rax,8),%xmm0
  mulsd  %xmm2,%xmm0
  divsd  %xmm1,%xmm0
  addsd  0x0(%rbp,%rax,8),%xmm0
  movsd  %xmm0,(%rdx,%rax,8)
  movsd  (%rsi,%rax,8),%xmm0
  mulsd  %xmm2,%xmm0
  mulsd  %xmm3,%xmm0
  addsd  0x0(%rbp,%rax,8),%xmm0
  movsd  %xmm0,(%rdi,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%r12
  jne    L59
  mulsd  %xmm2,%xmm3
  movsd  (%rsp),%xmm5
  mov    %r14d,%edx
  movsd  %xmm2,0x18(%rsp)
  addsd  %xmm3,%xmm5
  movsd  %xmm3,0x10(%rsp)
  movapd %xmm5,%xmm0
  movsd  %xmm5,0x8(%rsp)
  call   <my_rhs@plt>
  mov    0x0(%r13),%rdx
  mov    0x8(%r13),%rsi
  xor    %eax,%eax
  mov    0x10(%r13),%rdi
  movsd  D48(%rip),%xmm4
  movsd  0x8(%rsp),%xmm5
  movsd  0x10(%rsp),%xmm3
  movsd  0x18(%rsp),%xmm2
  nopl   0x0(%rax)
L12:
  movsd  (%rsi,%rax,8),%xmm0
  mulsd  %xmm2,%xmm0
  divsd  %xmm4,%xmm0
  addsd  (%rdx,%rax,8),%xmm0
  movsd  %xmm0,(%rdx,%rax,8)
  movsd  (%rsi,%rax,8),%xmm0
  mulsd  %xmm3,%xmm0
  addsd  0x0(%rbp,%rax,8),%xmm0
  movsd  %xmm0,(%rdi,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%r12
  jne    L12
  mov    %r14d,%edx
  movapd %xmm5,%xmm0
  movsd  %xmm2,0x8(%rsp)
  call   <my_rhs@plt>
  mov    0x0(%r13),%rdx
  mov    0x8(%r13),%rsi
  xor    %eax,%eax
  mov    D48(%rip),%rcx
  mov    0x10(%r13),%rdi
  movsd  0x8(%rsp),%xmm2
  movq   %rcx,%xmm4
  cs nopw 0x0(%rax,%rax,1)
L55:
  movsd  (%rsi,%rax,8),%xmm0
  mulsd  %xmm2,%xmm0
  divsd  %xmm4,%xmm0
  addsd  (%rdx,%rax,8),%xmm0
  movsd  %xmm0,(%rdx,%rax,8)
  movsd  (%rsi,%rax,8),%xmm0
  mulsd  %xmm2,%xmm0
  addsd  0x0(%rbp,%rax,8),%xmm0
  movsd  %xmm0,(%rdi,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%r12
  jne    L55
  movsd  (%rsp),%xmm3
  mov    %r14d,%edx
  movsd  %xmm2,0x8(%rsp)
  addsd  %xmm2,%xmm3
  movapd %xmm3,%xmm0
  movsd  %xmm3,(%rsp)
  call   <my_rhs@plt>
  mov    0x0(%r13),%rcx
  mov    0x8(%r13),%rdx
  xor    %eax,%eax
  mov    D16(%rip),%rdi
  movsd  (%rsp),%xmm3
  movsd  0x8(%rsp),%xmm2
  movq   %rdi,%xmm1
  nopl   (%rax)
L13:
  movsd  (%rdx,%rax,8),%xmm0
  mulsd  %xmm2,%xmm0
  divsd  %xmm1,%xmm0
  addsd  (%rcx,%rax,8),%xmm0
  movsd  %xmm0,0x0(%rbp,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%r12
  jne    L13
L26:
  movsd  %xmm3,(%rbx)
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopw   0x0(%rax,%rax,1)
L1:
  movapd %xmm2,%xmm0
  mov    0x8(%r13),%rsi
  mov    0x10(%r13),%rdi
  mov    %r14d,%edx
  mulsd  D2(%rip),%xmm0
  movsd  %xmm2,0x10(%rsp)
  addsd  (%rsp),%xmm0
  movsd  %xmm0,0x8(%rsp)
  call   <my_rhs@plt>
  mov    0x8(%r13),%rsi
  mov    0x10(%r13),%rdi
  mov    %r14d,%edx
  movsd  0x8(%rsp),%xmm0
  call   <my_rhs@plt>
  mov    0x8(%r13),%rsi
  mov    0x10(%r13),%rdi
  mov    %r14d,%edx
  movsd  (%rsp),%xmm3
  movsd  0x10(%rsp),%xmm2
  addsd  %xmm2,%xmm3
  movapd %xmm3,%xmm0
  movsd  %xmm3,(%rsp)
  call   <my_rhs@plt>
  movsd  (%rsp),%xmm3
  jmp    L26
```

tool_calls: name: parse_data
arguments: tag: D16
type_guessed: f64
name: parse_data
arguments: tag: D2
type_guessed: f64
name: parse_data
arguments: tag: D48
type_guessed: f64

tool: D16: 6

tool: D2: 0.5

tool: D48: 3

assistant: ```c
void one_step_rk4(double *y, double dt, double *yval[3], int neq, double *tim) {
  int i;
  double t = *tim, t1, t2;
  set_wieners(dt, y, t);
  my_rhs(t, y, yval[1], neq);
  for (i = 0; i < neq; i++) {
    yval[0][i] = y[i] + dt * yval[1][i] / 6.00;
    yval[2][i] = y[i] + dt * yval[1][i] * 0.5;
  }
  t1 = t + .5 * dt;
  my_rhs(t1, yval[2], yval[1], neq);
  for (i = 0; i < neq; i++) {
    yval[0][i] = yval[0][i] + dt * yval[1][i] / 3.00;
    yval[2][i] = y[i] + .5 * dt * yval[1][i];
  }
  my_rhs(t1, yval[2], yval[1], neq);
  for (i = 0; i < neq; i++) {
    yval[0][i] = yval[0][i] + dt * yval[1][i] / 3.000;
    yval[2][i] = y[i] + dt * yval[1][i];
  }
  t2 = t + dt;
  my_rhs(t2, yval[2], yval[1], neq);
  for (i = 0; i < neq; i++)
    y[i] = yval[0][i] + dt * yval[1][i] / 6.00;
  *tim = t2;
}
```