user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<base64_encode>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %esi,-0x4c(%rbp)
  mov    %rdx,-0x58(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    D9(%rip),%rax
  mov    %rax,-0x20(%rbp)
  movl   $0x0,-0x14(%rbp)
  movl   $0x2,-0x10(%rbp)
  movl   $0x1,-0xc(%rbp)
  mov    -0x4c(%rbp),%eax
  add    $0x2,%eax
  movslq %eax,%rdx
  imul   $0x55555556,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  shl    $0x2,%eax
  mov    %eax,-0x34(%rbp)
  movl   $0x0,-0x3c(%rbp)
  movl   $0x0,-0x38(%rbp)
  jmp    L108
L56:
  mov    -0x3c(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jge    L51
  mov    -0x3c(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x3c(%rbp)
  movslq %eax,%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  jmp    L85
L51:
  mov    $0x0,%eax
L85:
  mov    %eax,-0x30(%rbp)
  mov    -0x3c(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jge    L100
  mov    -0x3c(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x3c(%rbp)
  movslq %eax,%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  jmp    L35
L100:
  mov    $0x0,%eax
L35:
  mov    %eax,-0x2c(%rbp)
  mov    -0x3c(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jge    L98
  mov    -0x3c(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x3c(%rbp)
  movslq %eax,%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  jmp    L14
L98:
  mov    $0x0,%eax
L14:
  mov    %eax,-0x28(%rbp)
  mov    -0x30(%rbp),%eax
  shl    $0x10,%eax
  mov    %eax,%edx
  mov    -0x2c(%rbp),%eax
  shl    $0x8,%eax
  add    %eax,%edx
  mov    -0x28(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x24(%rbp),%eax
  sar    $0x12,%eax
  cltq
  and    $0x3f,%eax
  mov    %rax,%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x38(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x38(%rbp)
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
  mov    -0x24(%rbp),%eax
  sar    $0xc,%eax
  cltq
  and    $0x3f,%eax
  mov    %rax,%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x38(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x38(%rbp)
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
  mov    -0x24(%rbp),%eax
  sar    $0x6,%eax
  cltq
  and    $0x3f,%eax
  mov    %rax,%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x38(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x38(%rbp)
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
  mov    -0x24(%rbp),%eax
  cltq
  and    $0x3f,%eax
  mov    %rax,%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x38(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x38(%rbp)
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rax,%rdx
  movzbl (%rcx),%eax
  mov    %al,(%rdx)
L108:
  mov    -0x3c(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L56
  movl   $0x0,-0x3c(%rbp)
  jmp    L50
L58:
  mov    -0x34(%rbp),%eax
  sub    $0x1,%eax
  sub    -0x3c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  movb   $0x3d,(%rax)
  addl   $0x1,-0x3c(%rbp)
L50:
  mov    -0x4c(%rbp),%edx
  movslq %edx,%rax
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%eax
  mov    %eax,%ecx
  add    %ecx,%ecx
  add    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  cltq
  mov    -0x14(%rbp,%rax,4),%eax
  cmp    %eax,-0x3c(%rbp)
  jl     L58
  mov    -0x34(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L102
  call   <__stack_chk_fail@plt>
L102:
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: label: D9
type_guessed: string

tool: D9: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/

assistant: ```c
void base64_encode(unsigned char *data, int len, char *out) {
  char *lookup = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  int mod_table[] = {0, 2, 1};
  int out_len = 4 * ((len + 2) / 3);
  int i, j;
  for (i = 0, j = 0; i < len;) {
    uint32_t octet_a = i < len ? (unsigned char)data[i++] : 0;
    uint32_t octet_b = i < len ? (unsigned char)data[i++] : 0;
    uint32_t octet_c = i < len ? (unsigned char)data[i++] : 0;
    uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
    out[j++] = lookup[(triple >> 3 * 6) & 0x3F];
    out[j++] = lookup[(triple >> 2 * 6) & 0x3F];
    out[j++] = lookup[(triple >> 1 * 6) & 0x3F];
    out[j++] = lookup[(triple >> 0 * 6) & 0x3F];
  }
  for (i = 0; i < mod_table[len % 3]; i++)
    out[out_len - 1 - i] = '=';
  out[out_len] = '\0';
}
```