user: 这段汇编代码用C语言表示是什么样的:

```asm
<mgetword>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0xc(%rbp)
  mov    -0xc(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x10(%rbp),%eax
  mov    %eax,-0x14(%rbp)
  nop
L215:
  call   <getch@plt>
  mov    %eax,-0x1c(%rbp)
  mov    -0x1c(%rbp),%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L215
  cmpl   $0x2f,-0x1c(%rbp)
  jne    L250
  call   <getch@plt>
  mov    %eax,-0x18(%rbp)
  cmpl   $0x2a,-0x18(%rbp)
  jne    L268
  movl   $0x1,-0x14(%rbp)
  jmp    L250
L268:
  movl   $0x0,-0x14(%rbp)
  mov    -0x18(%rbp),%eax
  mov    %eax,%edi
  call   <ungetch@plt>
L250:
  cmpl   $0x22,-0x1c(%rbp)
  jne    L103
  movl   $0x1,-0x10(%rbp)
L103:
  cmpl   $0x23,-0x1c(%rbp)
  jne    L51
  movl   $0x1,-0xc(%rbp)
L51:
  cmpl   $0x5c,-0x1c(%rbp)
  jne    L94
  call   <getch@plt>
  mov    %eax,-0x1c(%rbp)
L94:
  cmpl   $0x0,-0x14(%rbp)
  jne    L124
  cmpl   $0x0,-0x10(%rbp)
  jne    L124
  cmpl   $0x0,-0xc(%rbp)
  jne    L124
  mov    D5(%rip),%rax
  mov    (%rax),%eax
  cmp    %eax,-0x1c(%rbp)
  je     L187
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    %dl,(%rax)
L187:
  mov    -0x1c(%rbp),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isalnum@plt>
  test   %eax,%eax
  jne    L27
  cmpl   $0x5f,-0x1c(%rbp)
  je     L27
  mov    -0x8(%rbp),%rax
  movb   $0x0,(%rax)
  mov    -0x1c(%rbp),%eax
  jmp    L296
L318:
  call   <getch@plt>
  mov    %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    %dl,(%rax)
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isalnum@plt>
  test   %eax,%eax
  jne    L73
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5f,%al
  je     L73
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <ungetch@plt>
  jmp    L334
L73:
  addq   $0x1,-0x8(%rbp)
L27:
  subl   $0x1,-0x2c(%rbp)
  cmpl   $0x0,-0x2c(%rbp)
  jg     L318
L334:
  mov    -0x8(%rbp),%rax
  movb   $0x0,(%rax)
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  jmp    L296
L124:
  cmpl   $0x1,-0x14(%rbp)
  jne    L297
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x18(%rbp),%edx
  mov    %dl,(%rax)
  jmp    L248
L52:
  cmpl   $0x2a,-0x1c(%rbp)
  jne    L248
  call   <getch@plt>
  mov    %eax,-0x1c(%rbp)
  cmpl   $0x2f,-0x1c(%rbp)
  jne    L243
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    %dl,(%rax)
  movl   $0x0,-0x14(%rbp)
  jmp    L178
L243:
  mov    -0x1c(%rbp),%eax
  mov    %eax,%edi
  call   <ungetch@plt>
L248:
  call   <getch@plt>
  mov    %eax,-0x1c(%rbp)
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    %dl,(%rax)
  movzbl (%rax),%eax
  test   %al,%al
  jne    L52
L178:
  mov    -0x8(%rbp),%rax
  movb   $0x0,(%rax)
  jmp    L109
L297:
  cmpl   $0x1,-0x10(%rbp)
  jne    L258
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    %dl,(%rax)
  jmp    L81
L313:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L81
  call   <getch@plt>
  mov    %eax,%ecx
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
L81:
  call   <getch@plt>
  mov    %eax,%ecx
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
  movzbl (%rax),%eax
  cmp    $0x22,%al
  jne    L313
  movl   $0x0,-0x10(%rbp)
  mov    -0x8(%rbp),%rax
  movb   $0x0,(%rax)
  jmp    L109
L258:
  cmpl   $0x1,-0xc(%rbp)
  jne    L109
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    %dl,(%rax)
  jmp    L169
L17:
  cmpl   $0x5c,-0x1c(%rbp)
  jne    L169
  call   <getch@plt>
  mov    %eax,%ecx
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
L169:
  call   <getch@plt>
  mov    %eax,%ecx
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L17
  movl   $0x0,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  movb   $0x0,(%rax)
L109:
  mov    -0x1c(%rbp),%eax
L296:
  leave
  ret
```

assistant: ```c
int mgetword(char *word, int lim) {
  int c, d, getch(void), comment, string, directive;
  void ungetch(int);
  char *w = word;
  comment = string = directive = 0;
  while (isspace(c = getch()))
    ;
  if (c == '/') {
    if ((d = getch()) == '*') {
      comment = 1;
    } else {
      comment = 0;
      ungetch(d);
    }
  }
  if (c == '\"') {
    string = 1;
  }
  if (c == '#') {
    directive = 1;
  }
  if (c == '\\') {
    c = getch();
  }
  if (comment == 0 && string == 0 && directive == 0) {
    if (c != EOF)
      *w++ = c;
    if (!isalnum(c) && c != '_') {
      *w = '\0';
      return c;
    }
    for (; --lim > 0; w++) {
      *w = getch();
      if (!isalnum(*w) && *w != '_') {
        ungetch(*w);
        break;
      }
    }
    *w = '\0';
    return word[0];
  } else if (comment == 1) {
    *w++ = c;
    *w++ = d;
    while ((*w++ = c = getch())) {
      if (c == '*') {
        if ((c = getch()) == '/') {
          *w++ = c;
          comment = 0;
          break;
        } else {
          ungetch(c);
        }
      }
    }
    *w = '\0';
  } else if (string == 1) {
    *w++ = c;
    while ((*w++ = getch()) != '\"') {
      if (*w == '\\')
        *w++ = getch();
    }
    string = 0;
    *w = '\0';
  } else if (directive == 1) {
    *w++ = c;
    while ((*w++ = getch()) != '\n') {
      if (c == '\\') {
        *w++ = getch();
      }
    }
    directive = 0;
    *w = '\0';
  }
  return c;
}
```