user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<SKP_Silk_LTP_analysis_filter_FIX>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %rdx,-0x58(%rbp)
  mov    %rcx,-0x60(%rbp)
  mov    %r8,-0x68(%rbp)
  mov    %r9d,-0x6c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x50(%rbp),%rax
  mov    %rax,-0x30(%rbp)
  mov    -0x48(%rbp),%rax
  mov    %rax,-0x20(%rbp)
  movl   $0x0,-0x40(%rbp)
  jmp    L89
L21:
  mov    -0x40(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  cltq
  add    %rax,%rax
  neg    %rax
  mov    %rax,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x28(%rbp)
  movl   $0x0,-0x3c(%rbp)
  jmp    L56
L60:
  mov    -0x40(%rbp),%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %eax,%edx
  mov    -0x3c(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    (%rax,%rax,1),%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  movzwl (%rax),%edx
  mov    -0x3c(%rbp),%eax
  cltq
  mov    %dx,-0x12(%rbp,%rax,2)
  addl   $0x1,-0x3c(%rbp)
L56:
  cmpl   $0x4,-0x3c(%rbp)
  jle    L60
  movl   $0x0,-0x3c(%rbp)
  jmp    L5
L7:
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    -0x3c(%rbp),%edx
  movslq %edx,%rdx
  lea    (%rdx,%rdx,1),%rcx
  mov    -0x20(%rbp),%rdx
  add    %rcx,%rdx
  movzwl (%rax),%eax
  mov    %ax,(%rdx)
  mov    -0x28(%rbp),%rax
  add    $0x4,%rax
  movzwl (%rax),%eax
  movswl %ax,%edx
  movzwl -0x12(%rbp),%eax
  cwtl
  imul   %edx,%eax
  mov    %eax,-0x34(%rbp)
  movl   $0x1,-0x38(%rbp)
  jmp    L112
L59:
  mov    $0x2,%eax
  sub    -0x38(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzwl (%rax),%eax
  movswl %ax,%edx
  mov    -0x38(%rbp),%eax
  cltq
  movzwl -0x12(%rbp,%rax,2),%eax
  cwtl
  imul   %edx,%eax
  mov    %eax,%edx
  mov    -0x34(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x34(%rbp)
  addl   $0x1,-0x38(%rbp)
L112:
  cmpl   $0x4,-0x38(%rbp)
  jle    L59
  mov    -0x34(%rbp),%eax
  sar    $0xd,%eax
  add    $0x1,%eax
  sar    %eax
  mov    %eax,-0x34(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movzwl (%rax),%eax
  cwtl
  sub    -0x34(%rbp),%eax
  cmp    $0x7fff,%eax
  jg     L45
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movzwl (%rax),%eax
  cwtl
  sub    -0x34(%rbp),%eax
  cmp    $0xffff8000,%eax
  jl     L79
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movzwl (%rax),%eax
  mov    %eax,%edx
  mov    -0x34(%rbp),%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  jmp    L46
L79:
  mov    $0xffff8000,%eax
  jmp    L46
L45:
  mov    $0x7fff,%eax
L46:
  mov    -0x3c(%rbp),%edx
  movslq %edx,%rdx
  lea    (%rdx,%rdx,1),%rcx
  mov    -0x20(%rbp),%rdx
  add    %rcx,%rdx
  mov    %ax,(%rdx)
  mov    -0x40(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  sar    $0x10,%eax
  mov    %eax,%edx
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rcx
  mov    -0x20(%rbp),%rax
  add    %rcx,%rax
  movzwl (%rax),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0x40(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  movzwl %ax,%edx
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rsi
  mov    -0x20(%rbp),%rax
  add    %rsi,%rax
  movzwl (%rax),%eax
  cwtl
  imul   %edx,%eax
  sar    $0x10,%eax
  lea    (%rcx,%rax,1),%edx
  mov    -0x3c(%rbp),%eax
  cltq
  lea    (%rax,%rax,1),%rcx
  mov    -0x20(%rbp),%rax
  add    %rcx,%rax
  mov    %dx,(%rax)
  addq   $0x2,-0x28(%rbp)
  addl   $0x1,-0x3c(%rbp)
L5:
  mov    -0x6c(%rbp),%edx
  mov    0x10(%rbp),%eax
  add    %edx,%eax
  cmp    %eax,-0x3c(%rbp)
  jl     L7
  mov    -0x6c(%rbp),%edx
  mov    0x10(%rbp),%eax
  add    %edx,%eax
  cltq
  add    %rax,%rax
  add    %rax,-0x20(%rbp)
  mov    -0x6c(%rbp),%eax
  cltq
  add    %rax,%rax
  add    %rax,-0x30(%rbp)
  addl   $0x1,-0x40(%rbp)
L89:
  cmpl   $0x3,-0x40(%rbp)
  jle    L21
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L51
  call   <__stack_chk_fail@plt>
L51:
  leave
  ret
```

assistant: ```c
void SKP_Silk_LTP_analysis_filter_FIX(short *LTP_res, const short *x, const short LTPCoef_Q14[5 * 4], const int pitchL[4], const int invGains_Q16[4], const int subfr_length, const int pre_length) {
  const short *x_ptr, *x_lag_ptr;
  short Btmp_Q14[5];
  short *LTP_res_ptr;
  int k, i, j;
  int LTP_est;
  x_ptr = x;
  LTP_res_ptr = LTP_res;
  for (k = 0; k < 4; k++) {
    x_lag_ptr = x_ptr - pitchL[k];
    for (i = 0; i < 5; i++) {
      Btmp_Q14[i] = LTPCoef_Q14[k * 5 + i];
    }
    for (i = 0; i < subfr_length + pre_length; i++) {
      LTP_res_ptr[i] = x_ptr[i];
      LTP_est = ((int)((short)(x_lag_ptr[5 / 2])) * (int)((short)(Btmp_Q14[0])));
      for (j = 1; j < 5; j++) {
        LTP_est = ((int)((unsigned int)((LTP_est)) + (unsigned int)(((int)((short)((x_lag_ptr[5 / 2 - j]))) * (int)((short)((Btmp_Q14[j])))))));
      }
      LTP_est = ((14) == 1 ? ((LTP_est) >> 1) + ((LTP_est)&1) : (((LTP_est) >> ((14) - 1)) + 1) >> 1);
      LTP_res_ptr[i] = (short)(((int)x_ptr[i] - LTP_est) > 0x7FFF ? 0x7FFF : (((int)x_ptr[i] - LTP_est) < ((short)0x8000) ? ((short)0x8000) : ((int)x_ptr[i] - LTP_est)));
      LTP_res_ptr[i] = ((((invGains_Q16[k]) >> 16) * (int)((short)(LTP_res_ptr[i]))) + ((((invGains_Q16[k]) & 0x0000FFFF) * (int)((short)(LTP_res_ptr[i]))) >> 16));
      x_lag_ptr++;
    }
    LTP_res_ptr += subfr_length + pre_length;
    x_ptr += subfr_length;
  }
}
```