Function bit_bswap

src/lua-engine.cpp:5823–5828

BIT_SH(bit_ror, bror)

static int bit_bswap(lua_State *L)
{
  UBits b = barg(L, 1);
  b = (b >> 24) | ((b >> 8) & 0xff00) | ((b & 0xff00) << 8) | (b << 24);
  BRET(b)
}

static int bit_tohex(lua_State *L)
{