user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<ft_ftohex>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  movl   $0xffffffff,-0x20(%rbp)
  fldt   0x10(%rbp)
  fldz
  fucomip %st(1),%st
  fstp   %st(0)
  jp     L52
  fldt   0x10(%rbp)
  fldz
  fucomip %st(1),%st
  fstp   %st(0)
  jne    L52
  lea    D8(%rip),%rax
  mov    %rax,%rdi
  call   <ft_strdup@plt>
  jmp    L125
L52:
  movl   $0x0,-0x24(%rbp)
  mov    $0x14,%edi
  call   <ft_strnew@plt>
  mov    %rax,-0x18(%rbp)
  fldt   0x10(%rbp)
  fldz
  fcomip %st(1),%st
  fstp   %st(0)
  jbe    L83
  mov    $0xffffffff,%eax
  jmp    L28
L83:
  mov    $0x1,%eax
L28:
  mov    %eax,-0x1c(%rbp)
  cmpl   $0xffffffff,-0x1c(%rbp)
  jne    L67
  mov    -0x24(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x24(%rbp)
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x2d,(%rax)
L67:
  mov    -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,%rdi
  call   <ft_init_hex@plt>
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x24(%rbp)
  fldt   0x10(%rbp)
  fstpt  -0x10(%rbp)
  jmp    L91
L112:
  cmpl   $0x1,-0x1c(%rbp)
  jne    L48
  fld1
  fldt   -0x10(%rbp)
  fcomip %st(1),%st
  fstp   %st(0)
  seta   %al
  jmp    L37
L48:
  fldt   -0x10(%rbp)
  fld1
  fchs
  fcomip %st(1),%st
  fstp   %st(0)
  seta   %al
L37:
  test   %al,%al
  je     L65
  addl   $0x1,-0x20(%rbp)
  mov    -0x20(%rbp),%eax
  mov    %eax,%esi
  mov    $0x2,%edi
  call   <ft_power@plt>
  fldt   0x10(%rbp)
  fdivp  %st,%st(1)
  fstpt  -0x10(%rbp)
  jmp    L91
L65:
  subl   $0x1,-0x20(%rbp)
  mov    -0x20(%rbp),%eax
  mov    %eax,%esi
  mov    $0x2,%edi
  call   <ft_power@plt>
  fldt   0x10(%rbp)
  fdivp  %st,%st(1)
  fstpt  -0x10(%rbp)
L91:
  fldt   -0x10(%rbp)
  fnstcw -0x32(%rbp)
  movzwl -0x32(%rbp),%eax
  or     $0xc,%ah
  mov    %ax,-0x34(%rbp)
  fldcw  -0x34(%rbp)
  fistpl -0x38(%rbp)
  fldcw  -0x32(%rbp)
  mov    -0x38(%rbp),%eax
  cmp    %eax,-0x1c(%rbp)
  jne    L112
  fildl  -0x1c(%rbp)
  fldt   -0x10(%rbp)
  fmulp  %st,%st(1)
  mov    -0x24(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  lea    -0x10(%rsp),%rsp
  fstpt  (%rsp)
  mov    %rax,%rdi
  call   <ft_ftohex2@plt>
  add    $0x10,%rsp
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x24(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x24(%rbp)
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x70,(%rax)
  cmpl   $0x0,-0x20(%rbp)
  jle    L99
  mov    -0x24(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x24(%rbp)
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x2b,(%rax)
L99:
  mov    -0x20(%rbp),%eax
  mov    %eax,%edi
  call   <ft_itoa@plt>
  mov    %eax,%esi
  mov    -0x18(%rbp),%rax
  mov    $0x1,%ecx
  mov    $0x1,%edx
  mov    %rax,%rdi
  call   <ft_strfjoin@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
L125:
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: label: D8
type_infered: string

tool: D8: 0x0p+0

assistant: ```c
char *ft_ftohex(long double f) {
  char *s;
  int i;
  long double res;
  int x;
  int sign;
  if ((x = -1) && f == 0.0)
    return (ft_strdup("0x0p+0"));
  i = 0;
  s = ft_strnew(20);
  if ((sign = (f < 0 ? -1 : 1)) == -1)
    s[i++] = '-';
  i += ft_init_hex(s + i);
  res = f;
  while ((int)res != sign) {
    if ((sign == 1 ? (res > 1) : (res < -1)))
      res = f / ft_power(2, ++x);
    else
      res = f / ft_power(2, --x);
  }
  i += ft_ftohex2(s + i, res * sign);
  if ((s[i++] = 'p') && x > 0)
    s[i++] = '+';
  return (s = ft_strfjoin(s, ft_itoa(x), 1, 1));
}
```