// 
// fp_format_a from 0x1801375d4 to 0x180137954 (896 bytes)
// 
// 3 xrefs:
// > sub_180137FE0 @ 0x1801382e6
// > <???> @ 0x1802035e4
// > <???> @ 0x1802035f0
// 
// 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_a(
        __int64 *a1,
        char *a2,
        unsigned __int64 a3,
        __int64 a4,
        __int64 a5,
        int Size,
        char a7,
        int a8,
        struct __crt_locale_pointers *a9,
        unsigned int a10)
{
  char *v10; // rbx
  int v12; // edi
  unsigned int v15; // edi
  __int64 v16; // rcx
  unsigned __int64 v17; // rdx
  char *v18; // rax
  char *v19; // rbp
  __int64 v20; // r12
  _BYTE *v21; // r14
  char v22; // al
  __int64 v23; // r8
  unsigned __int16 v24; // ax
  char *i; // rcx
  char v26; // dl
  char v27; // si
  _BYTE *v28; // r9
  __int64 v29; // rcx
  __int64 v30; // rdx
  char v31; // al
  _BYTE *v32; // r8
  _QWORD v34[3]; // [rsp+50h] [rbp-48h] BYREF
  char v35; // [rsp+68h] [rbp-30h]

  *a2 = 0;
  v10 = a2;
  v12 = 0;
  if ( Size >= 0 )
    v12 = Size;
  _LocaleUpdate::_LocaleUpdate((_LocaleUpdate *)v34, a9);
  if ( a3 <= v12 + 11 )
  {
    v15 = 34;
    *errno() = 34;
    invalid_parameter_noinfo();
    goto LABEL_53;
  }
  v16 = *a1;
  LODWORD(v17) = 2047;
  if ( (((unsigned __int64)*a1 >> 52) & 0x7FF) == 0x7FF )
  {
    v15 = sub_180137954(a1, v10, a3, a4, a5, v12, 0, a8, 0, a10);
    if ( v15 )
    {
      *v10 = 0;
      goto LABEL_53;
    }
    v18 = strrchr(v10, 101);
    if ( v18 )
    {
      *v18 = 32 * (a7 ^ 1) + 80;
      v18[3] = 0;
    }
  }
  else
  {
    if ( v16 < 0 )
    {
      *v10++ = 45;
      v16 = *a1;
    }
    v19 = v10 + 1;
    v20 = 1023;
    if ( (v16 & 0x7FF0000000000000LL) != 0 )
    {
      *v10 = 49;
    }
    else
    {
      *v10 = 48;
      v20 = (*a1 & 0xFFFFFFFFFFFFFLL) != 0 ? 0x3FE : 0;
    }
    v21 = v10 + 2;
    if ( v12 )
      v22 = ***(_BYTE ***)(v34[1] + 248LL);
    else
      v22 = 0;
    *v19 = v22;
    if ( (*a1 & 0xFFFFFFFFFFFFFLL) != 0 )
    {
      v23 = 48;
      v17 = 0xF000000000000LL;
      do
      {
        if ( v12 <= 0 )
          break;
        v24 = ((v17 & *a1 & 0xFFFFFFFFFFFFFLL) >> v23) + 48;
        if ( v24 > 0x39u )
          LOBYTE(v24) = 32 * (a7 ^ 1) + 7 + v24;
        *v21 = v24;
        --v12;
        ++v21;
        v17 >>= 4;
        LOWORD(v23) = v23 - 4;
      }
      while ( (v23 & 0x8000u) == 0LL );
      if ( (v23 & 0x8000u) == 0LL && (unsigned __int8)should_round_up(a1, v17, v23, a10) )
      {
        for ( i = v21 - 1; ; --i )
        {
          v26 = *i;
          if ( ((*i - 70) & 0xDF) != 0 )
            break;
          *i = 48;
        }
        if ( i == v19 )
        {
          ++*(i - 1);
        }
        else
        {
          if ( v26 == 57 )
            v27 = 32 * (a7 ^ 1) + 65;
          else
            v27 = v26 + 1;
          *i = v27;
        }
      }
    }
    if ( v12 > 0 )
    {
      LOBYTE(v17) = 48;
      memset(v21, v17, (unsigned int)v12);
      v21 += (unsigned int)v12;
    }
    if ( *v19 )
      v19 = v21;
    *v19 = 32 * (a7 ^ 1) + 80;
    v28 = v19 + 2;
    v29 = (((unsigned __int64)*a1 >> 52) & 0x7FF) - v20;
    v30 = v29;
    if ( v29 < 0 )
      v29 = v20 - (((unsigned __int64)*a1 >> 52) & 0x7FF);
    v31 = 43;
    v32 = v19 + 2;
    if ( v30 < 0 )
      v31 = 45;
    v19[1] = v31;
    *v28 = 48;
    if ( v29 >= 1000 )
    {
      v32 = v19 + 3;
      *v28 = v29 / 1000 + 48;
      v29 %= 1000;
    }
    if ( v32 != v28 || v29 >= 100 )
    {
      *v32++ = v29 / 100 + 48;
      v29 %= 100;
    }
    if ( v32 != v28 || v29 >= 10 )
    {
      *v32++ = v29 / 10 + 48;
      v29 %= 10;
    }
    *v32 = v29 + 48;
    v32[1] = 0;
  }
  v15 = 0;
LABEL_53:
  if ( v35 )
    *(_DWORD *)(v34[0] + 936LL) &= ~2u;
  return v15;
}