Function internal_patchBytes

library/LuaApi.cpp:3844–3917

}

static int internal_patchBytes(lua_State *L)
{
    luaL_checktype(L, 1, LUA_TTABLE);
    lua_settop(L, 2);

    MemoryPatcher patcher;

    if (!lua_isnil(L, 2))
    {
        luaL_checktype(L, 2, LUA_TTABLE);

        lua_pushnil(L);

        while (lua_next(L, 2))
        {
            uint8_t *addr = (uint8_t*)checkaddr(L, -2, true);
            int isnum;
            uint8_t value = (uint8_t)lua_tounsignedx(L, -1, &isnum);
            if (!isnum)
                luaL_error(L, "invalid value in verify table");
            lua_pop(L, 1);

            if (!patcher.verifyAccess(addr, 1, false))
            {
                lua_pushnil(L);
                lua_pushstring(L, "invalid verify address");
                lua_pushvalue(L, -3);
                return 3;
            }

            if (*addr != value)
            {
                lua_pushnil(L);
                lua_pushstring(L, "wrong verify value");
                lua_pushvalue(L, -3);
                return 3;
            }
        }
    }

    lua_pushnil(L);

    while (lua_next(L, 1))
    {
        uint8_t *addr = (uint8_t*)checkaddr(L, -2, true);
        int isnum;
        lua_tounsignedx(L, -1, &isnum);
        if (!isnum)
            luaL_error(L, "invalid value in write table");
        lua_pop(L, 1);

        if (!patcher.verifyAccess(addr, 1, true))
        {
            lua_pushnil(L);
            lua_pushstring(L, "invalid write address");
            lua_pushvalue(L, -3);
            return 3;
        }