static void set_bg_page(int data) {
        sys16_bg_page[0] = data >> 12;
        sys16_bg_page[1] = (data >> 8) & 0xf;
        sys16_bg_page[2] = (data >> 4) & 0xf;
        sys16_bg_page[3] = data & 0xf;
    }

    /*TODO*///	static void set_fg_page1( int data ){
/*TODO*///		sys16_fg_page[1] = data>>12;
/*TODO*///		sys16_fg_page[0] = (data>>8)&0xf;
/*TODO*///		sys16_fg_page[3] = (data>>4)&0xf;
/*TODO*///		sys16_fg_page[2] = data&0xf;
/*TODO*///	}
/*TODO*///	
/*TODO*///	static void set_bg_page1( int data ){
/*TODO*///		sys16_bg_page[1] = data>>12;
/*TODO*///		sys16_bg_page[0] = (data>>8)&0xf;
/*TODO*///		sys16_bg_page[3] = (data>>4)&0xf;
/*TODO*///		sys16_bg_page[2] = data&0xf;
/*TODO*///	}
/*TODO*///	
/*TODO*///	static void set_fg2_page( int data ){
/*TODO*///		sys16_fg2_page[0] = data>>12;
/*TODO*///		sys16_fg2_page[1] = (data>>8)&0xf;
/*TODO*///		sys16_fg2_page[2] = (data>>4)&0xf;
/*TODO*///		sys16_fg2_page[3] = data&0xf;
/*TODO*///	}
/*TODO*///	
/*TODO*///	static void set_bg2_page( int data ){
/*TODO*///		sys16_bg2_page[0] = data>>12;
/*TODO*///		sys16_bg2_page[1] = (data>>8)&0xf;
/*TODO*///		sys16_bg2_page[2] = (data>>4)&0xf;
/*TODO*///		sys16_bg2_page[3] = data&0xf;
/*TODO*///	}