user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<print_item>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %ecx,%eax
  mov    %r8,-0x40(%rbp)
  mov    %r9d,-0x38(%rbp)
  mov    0x18(%rbp),%ecx
  mov    %sil,-0x2c(%rbp)
  mov    %dl,-0x30(%rbp)
  mov    %al,-0x34(%rbp)
  mov    %ecx,%eax
  mov    %al,-0x44(%rbp)
  movl   $0x0,-0xc(%rbp)
  movl   $0x0,-0x1c(%rbp)
  movl   $0x0,-0x18(%rbp)
  movl   $0x0,-0x14(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x8(%rbp)
  mov    0x10(%rbp),%eax
  cmp    -0x8(%rbp),%eax
  jle    L65
  mov    0x10(%rbp),%eax
  sub    -0x8(%rbp),%eax
  mov    %eax,-0x14(%rbp)
L65:
  cmpb   $0x0,-0x30(%rbp)
  je     L82
  movl   $0x1,-0x1c(%rbp)
L82:
  cmpq   $0x0,-0x40(%rbp)
  je     L110
  movsbl -0x2c(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  je     L110
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x18(%rbp)
L110:
  mov    -0x1c(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %eax,%edx
  mov    -0x14(%rbp),%eax
  add    %eax,%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x4(%rbp)
  movsbl -0x2c(%rbp),%eax
  and    $0x2,%eax
  test   %eax,%eax
  jne    L14
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  jmp    L51
L117:
  movsbl -0x34(%rbp),%eax
  mov    %eax,%edi
  call   <putchr@plt>
  addl   $0x1,-0x10(%rbp)
L51:
  mov    -0x10(%rbp),%eax
  cmp    -0x38(%rbp),%eax
  jl     L117
L14:
  cmpb   $0x0,-0x30(%rbp)
  je     L123
  movsbl -0x30(%rbp),%eax
  mov    %eax,%edi
  call   <putchr@plt>
L123:
  cmpq   $0x0,-0x40(%rbp)
  je     L57
  movsbl -0x2c(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  je     L57
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <print_string@plt>
L57:
  movl   $0x0,-0x10(%rbp)
  jmp    L134
L115:
  movsbl -0x44(%rbp),%eax
  mov    %eax,%edi
  call   <putchr@plt>
  addl   $0x1,-0x10(%rbp)
L134:
  mov    -0x10(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jl     L115
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <print_string@plt>
  movzbl -0x2c(%rbp),%eax
  and    $0x2,%eax
  test   %al,%al
  je     L22
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  jmp    L139
L44:
  movsbl -0x34(%rbp),%eax
  mov    %eax,%edi
  call   <putchr@plt>
  addl   $0x1,-0x10(%rbp)
L139:
  mov    -0x10(%rbp),%eax
  cmp    -0x38(%rbp),%eax
  jl     L44
L22:
  mov    -0x4(%rbp),%eax
  leave
  ret
```

assistant: ```c
int print_item(const char *buffer, char flags, char sign, char pad, const char *alt, int field_w, int min_w, char min_p) {
  int filllen = 0;
  int signlen = 0;
  int altlen = 0;
  int padlen = 0;
  int buflen = strlen(buffer);
  int len;
  int i;
  if (min_w > buflen)
    padlen = min_w - buflen;
  if (sign)
    signlen = 1;
  if (alt && (flags & 0x01))
    altlen = strlen(alt);
  len = signlen + altlen + padlen + buflen;
  if (0x02 & ~flags) {
    for (i = len; i < field_w; i++)
      putchr(pad);
  }
  if (sign)
    putchr(sign);
  if (alt) {
    if (flags & 0x01)
      print_string(alt);
  }
  for (i = 0; i < padlen; i++)
    putchr(min_p);
  print_string(buffer);
  if (0x02 & flags) {
    for (i = len; i < field_w; i++)
      putchr(pad);
  }
  return len;
}
```