user: 这段汇编代码用C语言表示是什么样的?

```asm
<atoi>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  movzbl (%rdi),%edi
  cmp    $0x30,%dil
  je     L171
  cmp    $0x2d,%dil
  je     L24
  mov    $0x0,%ebp
  test   %dil,%dil
  je     L70
L37:
  movsbl %dil,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L70
  lea    0x0(%rbp,%rbp,4),%edx
  movsbl (%rbx),%eax
  lea    -0x30(%rax,%rdx,2),%ebp
  add    $0x1,%rbx
  movzbl (%rbx),%edi
  test   %dil,%dil
  jne    L37
L70:
  mov    %ebp,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L171:
  movzbl 0x1(%rbx),%esi
  mov    %esi,%eax
  and    $0xffffffdf,%eax
  cmp    $0x58,%al
  je     L160
  add    $0x1,%rbx
  mov    $0x0,%ebp
  lea    D23(%rip),%r12
  test   %sil,%sil
  je     L70
L20:
  movsbl %sil,%esi
  mov    %r12,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L70
  movsbl (%rbx),%eax
  lea    -0x30(%rax,%rbp,8),%ebp
  add    $0x1,%rbx
  movzbl (%rbx),%esi
  test   %sil,%sil
  jne    L20
  jmp    L70
L160:
  lea    0x2(%rbx),%r12
  movzbl 0x2(%rbx),%edi
  test   %dil,%dil
  je     L3
  mov    $0x0,%ebp
  lea    D29(%rip),%rbx
  lea    D0(%rip),%r13
  jmp    L169
L115:
  movsbl (%r12),%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L118
  shl    $0x4,%ebp
  movsbl (%r12),%eax
  lea    -0x37(%rbp,%rax,1),%ebp
L74:
  add    $0x1,%r12
  movzbl (%r12),%edi
  test   %dil,%dil
  je     L70
L169:
  movsbl %dil,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L115
  shl    $0x4,%ebp
  movsbl (%r12),%eax
  lea    -0x30(%rbp,%rax,1),%ebp
  jmp    L74
L118:
  movsbl (%r12),%esi
  mov    %r13,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L70
  shl    $0x4,%ebp
  movsbl (%r12),%eax
  lea    -0x57(%rbp,%rax,1),%ebp
  jmp    L74
L24:
  add    $0x1,%rbx
  mov    $0x0,%ebp
L31:
  movsbl (%rbx),%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L217
  lea    0x0(%rbp,%rbp,4),%edx
  movsbl (%rbx),%eax
  lea    -0x30(%rax,%rdx,2),%ebp
  add    $0x1,%rbx
  jmp    L31
L217:
  neg    %ebp
  jmp    L70
L3:
  mov    $0x0,%ebp
  jmp    L70
```

tool_calls: name: retrieve_data
arguments: label: D23
data_type: string
name: retrieve_data
arguments: label: D29
data_type: string
name: retrieve_data
arguments: label: D0
data_type: string

tool: D23: 01234567

tool: D29: ABCDEF

tool: D0: abcdef

assistant: ```c
int atoi(const char *s) {
  int a = 0;
  if (*s == '0') {
    s++;
    if (*s == 'x' || *s == 'X') {
      s++;
      while (*s) {
        if (isdigit(*s))
          a = (a << 4) + *s - '0';
        else if (strchr("ABCDEF", *s))
          a = (a << 4) + *s - 'A' + 10;
        else if (strchr("abcdef", *s))
          a = (a << 4) + *s - 'a' + 10;
        else
          return a;
        s++;
      }
      return a;
    }
    while (*s) {
      if (strchr("01234567", *s))
        a = (a << 3) + *s - '0';
      else
        return a;
      s++;
    }
    return a;
  }
  if (*s == '-') {
    s++;
    for (;;) {
      if (isdigit(*s))
        a = (a * 10) + *s - '0';
      else
        return -a;
      s++;
    }
  }
  while (*s) {
    if (isdigit(*s))
      a = (a * 10) + *s - '0';
    else
      return a;
    s++;
  }
  return a;
}
```