user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<rk4>:
  endbr64
  push   %r15
  xor    %eax,%eax
  mov    %rcx,%r15
  push   %r14
  push   %r13
  mov    %rsi,%r13
  lea    D77(%rip),%rsi
  push   %r12
  mov    %rdi,%r12
  movslq %edx,%rdi
  lea    D16(%rip),%rdx
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  shl    $0x3,%rdi
  sub    $0x48,%rsp
  movsd  %xmm0,0x10(%rsp)
  movsd  %xmm1,0x20(%rsp)
  mov    %r8,0x8(%rsp)
  mov    %rdi,0x18(%rsp)
  call   <mem_alloc@plt>
  mov    0x18(%rsp),%rdi
  lea    D55(%rip),%rdx
  lea    D77(%rip),%rsi
  movslq %eax,%rbp
  xor    %eax,%eax
  call   <mem_alloc@plt>
  mov    0x18(%rsp),%rdi
  lea    D73(%rip),%rdx
  lea    D77(%rip),%rsi
  movslq %eax,%r14
  xor    %eax,%eax
  call   <mem_alloc@plt>
  movsd  0x20(%rsp),%xmm1
  movsd  D23(%rip),%xmm4
  movsd  0x10(%rsp),%xmm0
  movslq %eax,%rdi
  mulsd  %xmm1,%xmm4
  movapd %xmm1,%xmm3
  divsd  D4(%rip),%xmm3
  addsd  %xmm4,%xmm0
  test   %ebx,%ebx
  jle    L74
  mov    %ebx,%eax
  mov    %r13,%rcx
  mov    %r12,%rdx
  lea    (%rdi,%rax,8),%rsi
  sub    %rdi,%rcx
  mov    %rdi,%rax
  sub    %rdi,%rdx
  nopw   0x0(%rax,%rax,1)
L78:
  movsd  (%rcx,%rax,1),%xmm2
  mulsd  %xmm4,%xmm2
  addsd  (%rdx,%rax,1),%xmm2
  add    $0x8,%rax
  movsd  %xmm2,-0x8(%rax)
  cmp    %rax,%rsi
  jne    L78
  mov    %rdi,0x20(%rsp)
  mov    0x8(%rsp),%rax
  mov    %r14,%rsi
  movsd  %xmm1,0x38(%rsp)
  movsd  %xmm3,0x30(%rsp)
  movsd  %xmm4,0x28(%rsp)
  movsd  %xmm0,0x18(%rsp)
  call   *%rax
  cmp    $0x1,%ebx
  movsd  0x18(%rsp),%xmm0
  mov    0x20(%rsp),%rdi
  movsd  0x28(%rsp),%xmm4
  movsd  0x30(%rsp),%xmm3
  movsd  0x38(%rsp),%xmm1
  je     L64
  lea    -0x2(%rbx),%edx
  mov    %rdi,%rsi
  lea    0x8(%r14),%rax
  mov    %r12,%rcx
  lea    0x10(,%rdx,8),%rdx
  sub    %r14,%rsi
  sub    %r14,%rcx
  lea    (%rdx,%r14,1),%r9
L8:
  movsd  (%rax),%xmm2
  mulsd  %xmm4,%xmm2
  addsd  (%rcx,%rax,1),%xmm2
  movsd  %xmm2,(%rsi,%rax,1)
  add    $0x8,%rax
  cmp    %rax,%r9
  jne    L8
  mov    %rdx,0x20(%rsp)
  mov    0x8(%rsp),%rax
  mov    %rbp,%rsi
  mov    %rdi,0x18(%rsp)
  movsd  %xmm1,0x30(%rsp)
  movsd  %xmm3,0x28(%rsp)
  call   *%rax
  mov    0x18(%rsp),%rdi
  mov    0x20(%rsp),%rdx
  mov    %r12,%rsi
  mov    %r14,%rcx
  movsd  0x28(%rsp),%xmm3
  lea    0x8(%rbp),%rax
  sub    %rbp,%rsi
  mov    %rdi,%r9
  movsd  0x30(%rsp),%xmm1
  add    %rbp,%rdx
  sub    %rbp,%rcx
  sub    %rbp,%r9
  nopw   0x0(%rax,%rax,1)
L13:
  movsd  (%rax),%xmm2
  mulsd  %xmm1,%xmm2
  addsd  (%rsi,%rax,1),%xmm2
  movsd  %xmm2,(%r9,%rax,1)
  movsd  (%rax),%xmm2
  addsd  (%rcx,%rax,1),%xmm2
  add    $0x8,%rax
  movsd  %xmm2,-0x8(%rax)
  cmp    %rax,%rdx
  jne    L13
  movsd  0x10(%rsp),%xmm0
  mov    0x8(%rsp),%rax
  mov    %rdi,0x10(%rsp)
  mov    %r14,%rsi
  movsd  %xmm3,0x18(%rsp)
  addsd  %xmm1,%xmm0
  call   *%rax
  mov    0x10(%rsp),%rdi
  movsd  0x18(%rsp),%xmm3
L35:
  mov    %rbp,%rcx
  mov    %r14,%rdx
  xor    %eax,%eax
  sub    %r14,%rcx
  nop
L33:
  movsd  (%rcx,%rdx,1),%xmm0
  movsd  0x0(%r13,%rax,8),%xmm1
  add    $0x8,%rdx
  addsd  -0x8(%rdx),%xmm1
  addsd  %xmm0,%xmm0
  addsd  %xmm1,%xmm0
  mulsd  %xmm3,%xmm0
  addsd  (%r12,%rax,8),%xmm0
  movsd  %xmm0,(%r15,%rax,8)
  add    $0x1,%rax
  cmp    %eax,%ebx
  jg     L33
L2:
  call   <free@plt>
  mov    %r14,%rdi
  call   <free@plt>
  add    $0x48,%rsp
  mov    %rbp,%rdi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1060 <free@plt>
  nopl   0x0(%rax,%rax,1)
L74:
  mov    0x8(%rsp),%rbx
  movsd  %xmm1,0x28(%rsp)
  mov    %r14,%rsi
  mov    %rdi,0x20(%rsp)
  movsd  %xmm0,0x18(%rsp)
  call   *%rbx
  mov    0x20(%rsp),%rdi
  movsd  0x18(%rsp),%xmm0
  mov    %rbp,%rsi
  mov    %rdi,0x8(%rsp)
  call   *%rbx
  movsd  0x10(%rsp),%xmm0
  mov    0x8(%rsp),%rdi
  mov    %r14,%rsi
  movsd  0x28(%rsp),%xmm1
  addsd  %xmm1,%xmm0
  call   *%rbx
  mov    0x8(%rsp),%rdi
  jmp    L2
L64:
  movsd  %xmm3,0x20(%rsp)
  mov    0x8(%rsp),%rax
  mov    %rbp,%rsi
  mov    %rdi,0x18(%rsp)
  movsd  %xmm1,0x28(%rsp)
  call   *%rax
  movsd  0x10(%rsp),%xmm0
  mov    0x18(%rsp),%rdi
  mov    %r14,%rsi
  movsd  0x28(%rsp),%xmm1
  mov    0x8(%rsp),%rax
  mov    %rdi,0x10(%rsp)
  addsd  %xmm1,%xmm0
  call   *%rax
  mov    0x10(%rsp),%rdi
  movsd  0x20(%rsp),%xmm3
  jmp    L35
```

tool_calls: name: unpack_data
arguments: data_tag: D77
type_infered: string
name: unpack_data
arguments: data_tag: D16
type_infered: string
name: unpack_data
arguments: data_tag: D55
type_infered: string
name: unpack_data
arguments: data_tag: D73
type_infered: string
name: unpack_data
arguments: data_tag: D23
type_infered: f64
name: unpack_data
arguments: data_tag: D4
type_infered: f64

tool: D77: rk4(): 

tool: D16: dym[]

tool: D55: dyt[]

tool: D73: yt[]

tool: D23: 0.5

tool: D4: 6

assistant: ```c
void rk4(double *y, double *dydx, int n, double x, double h, double *yout, void (*derivs)(double, double *, double *)) {
  char *func = {"rk4(): "};
  int i;
  double xh, hh, h6, *dym, *dyt, *yt;
  dym = (double *)mem_alloc((n) * sizeof(double), func, "dym[]");
  dyt = (double *)mem_alloc((n) * sizeof(double), func, "dyt[]");
  yt = (double *)mem_alloc((n) * sizeof(double), func, "yt[]");
  hh = h * 0.5;
  h6 = h / 6.0;
  xh = x + hh;
  for (i = 0; i < n; i++) {
    yt[i] = y[i] + hh * dydx[i];
  }
  (*derivs)(xh, yt, dyt);
  for (i = 1; i < n; i++) {
    yt[i] = y[i] + hh * dyt[i];
  }
  (*derivs)(xh, yt, dym);
  for (i = 1; i < n; i++) {
    yt[i] = y[i] + h * dym[i];
    dym[i] += dyt[i];
  }
  (*derivs)(x + h, yt, dyt);
  for (i = 0; i < n; i++) {
    yout[i] = y[i] + h6 * (dydx[i] + dyt[i] + 2.0 * dym[i]);
  }
  free(yt);
  free(dyt);
  free(dym);
}
```