// 
// fp_format_f_internal from 0x180137c14 to 0x180137d79 (357 bytes)
// 
// 3 xrefs:
// > sub_180137D7C @ 0x180137e69
// > sub_180137FE0 @ 0x18013826c
// > <???> @ 0x180203614
// 
// This function is hookable on this platform!
// 
// Using BromaIDA 8.0.0 @ https://github.com/Stazzical/BromaIDA
// Using bindings at commit ba9f177b at Thu Jul 16 22:52:06 2026 from https://github.com/geode-sdk/bindings
// 

__int64 __fastcall fp_format_f_internal(
        char *const Src,
        __int64 a2,
        int a3,
        struct _strflt *const a4,
        bool a5,
        struct __crt_locale_pointers *const a6)
{
  __int64 v9; // rcx
  __int64 v10; // rax
  __int64 v11; // rdi
  bool v12; // al
  char *v13; // rbp
  __int64 v14; // r8
  char *v15; // rbx
  char *v16; // rbp
  __int64 v17; // r8
  int v18; // eax
  int v19; // eax
  _QWORD v21[3]; // [rsp+20h] [rbp-28h] BYREF
  char v22; // [rsp+38h] [rbp-10h]

  _LocaleUpdate::_LocaleUpdate((_LocaleUpdate *)v21, a6);
  v9 = *((int *)a4 + 1);
  if ( a5 && (_DWORD)v9 - 1 == a3 )
    *(_WORD *)&Src[(*(_DWORD *)a4 == 45) - 1 + v9] = 48;
  if ( *(_DWORD *)a4 == 45 )
    *Src++ = 45;
  v10 = *((int *)a4 + 1);
  v11 = -1;
  if ( (int)v10 > 0 )
  {
    v15 = &Src[v10];
  }
  else
  {
    v12 = !(_DWORD)v10 && **((_BYTE **)a4 + 1) == 48;
    if ( a5 && v12 )
    {
      v13 = Src + 1;
    }
    else
    {
      v13 = Src + 1;
      v14 = -1;
      do
        ++v14;
      while ( Src[v14] );
      memmove(Src + 1, Src, v14 + 1);
    }
    *Src = 48;
    v15 = v13;
  }
  if ( a3 > 0 )
  {
    v16 = v15 + 1;
    v17 = -1;
    do
      ++v17;
    while ( v15[v17] );
    memmove(v15 + 1, v15, v17 + 1);
    *v15 = ***(_BYTE ***)(v21[1] + 248LL);
    v18 = *((_DWORD *)a4 + 1);
    if ( v18 < 0 )
    {
      v19 = -v18;
      if ( a5 || v19 < a3 )
        a3 = v19;
      if ( a3 )
      {
        do
          ++v11;
        while ( v16[v11] );
        memmove(&v16[a3], v15 + 1, v11 + 1);
      }
      memset(v15 + 1, 48, a3);
    }
  }
  if ( v22 )
    *(_DWORD *)(v21[0] + 936LL) &= ~2u;
  return 0;
}