public void handler() {
            /*TODO*///UINT16 t, r;
            /*TODO*///IDXBYTE(t);
            /*TODO*///r = B - t;
            /*TODO*///CLR_NZVC;
            /*TODO*///SET_FLAGS8(B, t, r);
            /*TODO*///B = r;
            throw new UnsupportedOperationException("Unsupported");
        }