user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<model_>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x48(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %rdx,-0x58(%rbp)
  mov    %rcx,-0x60(%rbp)
  mov    %r8,-0x68(%rbp)
  mov    %r9,-0x70(%rbp)
  mov    0x20(%rbp),%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x28(%rbp)
  mov    0x20(%rbp),%rax
  movsd  0x8(%rax),%xmm0
  movsd  %xmm0,-0x20(%rbp)
  mov    0x20(%rbp),%rax
  movsd  0x10(%rax),%xmm0
  movsd  %xmm0,-0x18(%rbp)
  movsd  -0x20(%rbp),%xmm0
  divsd  -0x18(%rbp),%xmm0
  movsd  %xmm0,-0x10(%rbp)
  mov    0x28(%rbp),%rax
  movsd  -0x10(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  movl   $0x0,-0x34(%rbp)
  jmp    L27
L1:
  mov    -0x34(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x30(%rbp)
  mov    -0x34(%rbp),%eax
  add    %eax,%eax
  add    $0x1,%eax
  mov    %eax,-0x2c(%rbp)
  cmpl   $0x0,-0x34(%rbp)
  jg     L20
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x8(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x34(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x38(%rbp),%rax
  add    %rdx,%rax
  mulsd  -0x28(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  jmp    L15
L20:
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x30(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x10(%rax),%rdx
  mov    0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  mov    -0x34(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x2c(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x10(%rax),%rdx
  mov    0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm2
  subsd  %xmm2,%xmm0
  mulsd  -0x28(%rbp),%xmm0
  addsd  %xmm0,%xmm1
  movsd  -0x20(%rbp),%xmm0
  movapd %xmm0,%xmm2
  mulsd  -0x8(%rbp),%xmm2
  mov    -0x2c(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x10(%rax),%rdx
  mov    0x30(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm2,%xmm0
  addsd  %xmm1,%xmm0
  mov    -0x34(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mulsd  -0x8(%rbp),%xmm1
  mulsd  -0x18(%rbp),%xmm1
  mov    -0x34(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x38(%rbp),%rax
  add    %rdx,%rax
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
L15:
  addl   $0x1,-0x34(%rbp)
L27:
  mov    -0x60(%rbp),%rax
  mov    (%rax),%eax
  cmp    %eax,-0x34(%rbp)
  jl     L1
  nop
  pop    %rbp
  ret
```

assistant: ```c
void model_(int *CurSet, int *NoOfParams, int *NoOfDerived, int *TotalDataValues, int *MaxNoOfDataValues, int *NoOfDataCols, int *NoOfAdirissaCols, int *NoOfModelVectors, double Params[], double Derived[], double Adirissa[], double Signal[]) {
  int CurEntry, tindex, cindex;
  double R, K2, k2a, dt, DVR;
  R = Params[0];
  K2 = Params[1];
  k2a = Params[2];
  DVR = K2 / k2a;
  Derived[0] = DVR;
  for (CurEntry = 0; CurEntry < *TotalDataValues; CurEntry++) {
    tindex = 2 * CurEntry;
    cindex = 2 * CurEntry + 1;
    if (CurEntry < 1) {
      dt = Adirissa[tindex];
      Signal[CurEntry] = R * (Adirissa[cindex]);
    } else {
      dt = Adirissa[tindex] - Adirissa[tindex - 2];
      Signal[CurEntry] = Signal[CurEntry - 1] + R * (Adirissa[cindex] - Adirissa[cindex - 2]) + K2 * dt * Adirissa[cindex - 2] - dt * Signal[CurEntry - 1] * k2a;
    }
  }
  return;
}
```