BPP_RW
disp_BAT[1] = addr | (_PAGE_NO_CACHE | _PAGE_GUARDED | BPP_RW);
bat[1].batl = (bat[1].batl & ~BPP_RW) | BPP_RX;
wimgxpp |= (flags & _PAGE_WRITE) ? BPP_RW : BPP_RX;
else if (lower & BPP_RW)