user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  add    $0xffffffffffffff80,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x78(%rbp)
  jmp    L70
L14:
  mov    -0x78(%rbp),%eax
  mov    %eax,%edx
  mov    -0x78(%rbp),%eax
  cltq
  mov    %dl,-0x60(%rbp,%rax,1)
  mov    -0x78(%rbp),%eax
  cltq
  movb   $0x0,-0x30(%rbp,%rax,1)
  addl   $0x1,-0x78(%rbp)
L70:
  cmpl   $0x26,-0x78(%rbp)
  jle    L14
  lea    -0x60(%rbp),%rax
  mov    %rax,-0x70(%rbp)
  lea    -0x30(%rbp),%rax
  mov    %rax,-0x68(%rbp)
  movl   $0x27,-0x74(%rbp)
  mov    -0x74(%rbp),%eax
  add    $0x7,%eax
  lea    0x7(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x3,%eax
  mov    %eax,-0x78(%rbp)
  mov    -0x74(%rbp),%eax
  cltd
  shr    $0x1d,%edx
  add    %edx,%eax
  and    $0x7,%eax
  sub    %edx,%eax
  cmp    $0x7,%eax
  ja     L43
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  lea    D18(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D18(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
L67:
  nop
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  mov    -0x70(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x70(%rbp)
  mov    -0x68(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x68(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  subl   $0x1,-0x78(%rbp)
  cmpl   $0x0,-0x78(%rbp)
  jg     L67
L43:
  movl   $0x0,-0x78(%rbp)
  jmp    L18
L23:
  mov    -0x78(%rbp),%eax
  cltq
  movzbl -0x60(%rbp,%rax,1),%edx
  mov    -0x78(%rbp),%eax
  cltq
  movzbl -0x30(%rbp,%rax,1),%eax
  cmp    %al,%dl
  je     L39
  mov    $0x1,%eax
  jmp    L8
L39:
  addl   $0x1,-0x78(%rbp)
L18:
  cmpl   $0x26,-0x78(%rbp)
  jle    L23
  mov    $0x0,%eax
L8:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L49
  call   <__stack_chk_fail@plt>
L49:
  leave
  ret
```

assistant: ```c
int main() {
  int count, n;
  char *from, *to;
  char a[39], b[39];
  for (n = 0; n < 39; n++) {
    a[n] = n;
    b[n] = 0;
  }
  from = a;
  to = b;
  count = 39;
  n = (count + 7) / 8;
  switch (count % 8) {
  case 0:
    do {
      *to++ = *from++;
    case 7:
      *to++ = *from++;
    case 6:
      *to++ = *from++;
    case 5:
      *to++ = *from++;
    case 4:
      *to++ = *from++;
    case 3:
      *to++ = *from++;
    case 2:
      *to++ = *from++;
    case 1:
      *to++ = *from++;
    } while (--n > 0);
  }
  for (n = 0; n < 39; n++)
    if (a[n] != b[n])
      return 1;
  return 0;
}
```