user: 这段汇编代码用C语言表示是什么样的?

```asm
<parse_prefs_line>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    %r8,-0x38(%rbp)
  mov    %r9,-0x40(%rbp)
  mov    -0x18(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,-0x8(%rbp)
  jmp    L252
L58:
  addq   $0x1,-0x8(%rbp)
L252:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L97
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L58
L97:
  mov    -0x20(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  jmp    L408
L260:
  addq   $0x1,-0x8(%rbp)
L408:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L260
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L170
  mov    $0xffffffff,%eax
  jmp    L214
L170:
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movb   $0x0,(%rax)
  jmp    L316
L374:
  addq   $0x1,-0x8(%rbp)
L316:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L110
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L374
L110:
  mov    -0x28(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  jmp    L388
L368:
  addq   $0x1,-0x8(%rbp)
L388:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L368
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L302
  mov    $0xffffffff,%eax
  jmp    L214
L302:
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movb   $0x0,(%rax)
  jmp    L182
L8:
  addq   $0x1,-0x8(%rbp)
L182:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L403
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L8
L403:
  mov    -0x30(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  jmp    L382
L231:
  addq   $0x1,-0x8(%rbp)
L382:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L231
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L123
  mov    $0xffffffff,%eax
  jmp    L214
L123:
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movb   $0x0,(%rax)
  jmp    L232
L364:
  addq   $0x1,-0x8(%rbp)
L232:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L108
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L364
L108:
  mov    -0x38(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  jmp    L146
L41:
  addq   $0x1,-0x8(%rbp)
L146:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L41
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L43
  mov    $0xffffffff,%eax
  jmp    L214
L43:
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movb   $0x0,(%rax)
  jmp    L27
L276:
  addq   $0x1,-0x8(%rbp)
L27:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L291
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L276
L291:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L138
  mov    $0xffffffff,%eax
  jmp    L214
L138:
  mov    -0x40(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  jmp    L125
L404:
  addq   $0x1,-0x8(%rbp)
L125:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L404
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L259
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movb   $0x0,(%rax)
  jmp    L183
L308:
  addq   $0x1,-0x8(%rbp)
L183:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L172
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L308
L172:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L259
  mov    $0xffffffff,%eax
  jmp    L214
L259:
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movb   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  mov    $0x0,%eax
L214:
  leave
  ret
```

assistant: ```c
int parse_prefs_line(char **start_ptr, char **qid_ptr, char **jg_ptr, char **jsg_ptr, char **docno_ptr, char **rel_ptr) {
  char *ptr = *start_ptr;
  while (*ptr != '\n' && isspace(*ptr))
    ptr++;
  *qid_ptr = ptr;
  while (!isspace(*ptr))
    ptr++;
  if (*ptr == '\n')
    return (-1);
  *ptr++ = '\0';
  while (*ptr != '\n' && isspace(*ptr))
    ptr++;
  *jg_ptr = ptr;
  while (!isspace(*ptr))
    ptr++;
  if (*ptr == '\n')
    return (-1);
  *ptr++ = '\0';
  while (*ptr != '\n' && isspace(*ptr))
    ptr++;
  *jsg_ptr = ptr;
  while (!isspace(*ptr))
    ptr++;
  if (*ptr == '\n')
    return (-1);
  *ptr++ = '\0';
  while (*ptr != '\n' && isspace(*ptr))
    ptr++;
  *docno_ptr = ptr;
  while (!isspace(*ptr))
    ptr++;
  if (*ptr == '\n')
    return (-1);
  *ptr++ = '\0';
  while (*ptr != '\n' && isspace(*ptr))
    ptr++;
  if (*ptr == '\n')
    return (-1);
  *rel_ptr = ptr;
  while (!isspace(*ptr))
    ptr++;
  if (*ptr != '\n') {
    *ptr++ = '\0';
    while (*ptr != '\n' && isspace(*ptr))
      ptr++;
    if (*ptr != '\n')
      return (-1);
  }
  *ptr++ = '\0';
  *start_ptr = ptr;
  return (0);
}
```