user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<parse_argv>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    $0x8,%esi
  mov    %eax,%edi
  call   <calloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  movl   $0x0,-0x18(%rbp)
  movl   $0x0,-0x14(%rbp)
  mov    -0x30(%rbp),%rax
  movl   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
  mov    -0x10(%rbp),%rdx
  mov    %rdx,(%rax)
  jmp    L27
L26:
  addq   $0x1,-0x28(%rbp)
L27:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L26
L160:
  mov    -0x28(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x28(%rbp)
  movzbl (%rax),%eax
  mov    %al,-0x19(%rbp)
  cmpb   $0x0,-0x19(%rbp)
  je     L55
  movsbl -0x19(%rbp),%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L197
  cmpl   $0x0,-0x14(%rbp)
  jne    L197
  jmp    L55
L94:
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x5c,(%rax)
  subl   $0x1,-0x18(%rbp)
L55:
  cmpl   $0x0,-0x18(%rbp)
  jne    L94
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x0,(%rax)
  mov    -0x30(%rbp),%rax
  mov    (%rax),%eax
  lea    0x1(%rax),%edx
  mov    -0x30(%rbp),%rax
  mov    %edx,(%rax)
  mov    -0x30(%rbp),%rax
  mov    (%rax),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0x10(%rbp),%rax
  mov    %rax,(%rdx)
  cmpb   $0x0,-0x19(%rbp)
  jne    L64
  mov    -0x8(%rbp),%rax
  jmp    L92
L77:
  addq   $0x1,-0x28(%rbp)
L64:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L77
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L104
  mov    -0x8(%rbp),%rax
  jmp    L92
L197:
  cmpb   $0x5c,-0x19(%rbp)
  jne    L43
  addl   $0x1,-0x18(%rbp)
  jmp    L160
L43:
  cmpb   $0x22,-0x19(%rbp)
  jne    L176
  mov    -0x18(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  jne    L152
  cmpl   $0x0,-0x14(%rbp)
  sete   %al
  movzbl %al,%eax
  mov    %eax,-0x14(%rbp)
  movb   $0x0,-0x19(%rbp)
L152:
  sarl   -0x18(%rbp)
  jmp    L176
L80:
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x5c,(%rax)
  subl   $0x1,-0x18(%rbp)
L176:
  cmpl   $0x0,-0x18(%rbp)
  jne    L80
  cmpb   $0x0,-0x19(%rbp)
  je     L160
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movzbl -0x19(%rbp),%edx
  mov    %dl,(%rax)
  jmp    L160
L104:
  nop
  jmp    L160
L92:
  leave
  ret
```

assistant: ```c
char **parse_argv(char *cmdline, int *argc) {
  char **result = calloc(strlen(cmdline), sizeof(char *));
  char *output = cmdline;
  char c;
  int nb = 0;
  int iq = 0;
  *argc = 0;
  result[0] = output;
  while (isspace(*cmdline))
    cmdline++;
  do {
    c = *cmdline++;
    if (!c || (isspace(c) && !iq)) {
      while (nb) {
        *output++ = '\\';
        nb--;
      }
      *output++ = 0;
      result[++*argc] = output;
      if (!c)
        return result;
      while (isspace(*cmdline))
        cmdline++;
      if (!*cmdline)
        return result;
      continue;
    }
    if (c == '\\')
      ++nb;
    else {
      if (c == '"') {
        if (!(nb & 1)) {
          iq = !iq;
          c = 0;
        }
        nb = nb >> 1;
      }
      while (nb) {
        *output++ = '\\';
        nb--;
      }
      if (c)
        *output++ = c;
    }
  } while (1);
}
```