// 
// setSBUpLow from 0x18013a3b8 to 0x18013a599 (481 bytes)
// 
// 3 xrefs:
// > _setmbcp_nolock @ 0x18013a936
// > <???> @ 0x180203848
// > <???> @ 0x180203854
// 
// 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
// 

void __fastcall setSBUpLow(struct __crt_multibyte_data *a1)
{
  UINT v2; // ecx
  unsigned int v3; // eax
  char *v4; // rcx
  __int64 v5; // rsi
  BYTE v6; // al
  BYTE *LeadByte; // rdx
  unsigned int v8; // r8d
  __int64 i; // rcx
  __int64 v10; // rax
  WORD *v11; // rdx
  char v12; // cl
  unsigned int v13; // edx
  __int64 v14; // rcx
  char v15; // al
  struct _cpinfo CPInfo; // [rsp+50h] [rbp-B0h] BYREF
  char v17[256]; // [rsp+70h] [rbp-90h] BYREF
  char v18[256]; // [rsp+170h] [rbp+70h] BYREF
  char v19[256]; // [rsp+270h] [rbp+170h] BYREF
  WORD CharType[512]; // [rsp+370h] [rbp+270h] BYREF

  v2 = *((_DWORD *)a1 + 1);
  if ( v2 == 65001 || !GetCPInfo(v2, &CPInfo) )
  {
    v13 = 0;
    v14 = 1;
    do
    {
      if ( v13 - 97 + 32 > 0x19 )
      {
        if ( v13 - 97 > 0x19 )
        {
          v15 = 0;
        }
        else
        {
          *((_BYTE *)a1 + v14 + 24) |= 0x20u;
          v15 = v13 - 32;
        }
      }
      else
      {
        *((_BYTE *)a1 + v14 + 24) |= 0x10u;
        v15 = v13 + 32;
      }
      *((_BYTE *)a1 + v14 + 280) = v15;
      ++v13;
      ++v14;
    }
    while ( v13 < 0x100 );
  }
  else
  {
    v3 = 0;
    v4 = v17;
    v5 = 256;
    do
      *v4++ = v3++;
    while ( v3 < 0x100 );
    v6 = CPInfo.LeadByte[0];
    LeadByte = CPInfo.LeadByte;
    v17[0] = 32;
    while ( v6 )
    {
      v8 = LeadByte[1];
      for ( i = v6; (unsigned int)i <= v8 && (unsigned int)i < 0x100; i = (unsigned int)(i + 1) )
        v17[i] = 32;
      LeadByte += 2;
      v6 = *LeadByte;
    }
    _acrt_GetStringTypeA(nullptr, 1u, CharType, *((_DWORD *)a1 + 1), 0);
    _acrt_LCMapStringA(nullptr, *((wchar_t **)a1 + 68), 0x100u, v17, 256, v18, 256, *((_DWORD *)a1 + 1), 0);
    _acrt_LCMapStringA(nullptr, *((wchar_t **)a1 + 68), 0x200u, v17, 256, v19, 256, *((_DWORD *)a1 + 1), 0);
    v10 = 1;
    v11 = CharType;
    do
    {
      if ( (*(_BYTE *)v11 & 1) != 0 )
      {
        *((_BYTE *)a1 + v10 + 24) |= 0x10u;
        v12 = v17[v10 + 255];
      }
      else if ( (*(_BYTE *)v11 & 2) != 0 )
      {
        *((_BYTE *)a1 + v10 + 24) |= 0x20u;
        v12 = v18[v10 + 255];
      }
      else
      {
        v12 = 0;
      }
      *((_BYTE *)a1 + v10 + 280) = v12;
      ++v11;
      ++v10;
      --v5;
    }
    while ( v5 );
  }
}