ROP_SRC
return cfxga_standalone_rop(scr, ROP_SRC, sx, y, dx, y, cx, cy);
return cfxga_standalone_rop(scr, ROP_SRC, x, sy, x, dy, cx, cy);
return cfxga_standalone_rop(scr, ROP_ONES ^ ROP_SRC /* i.e. not SRC */,
mgx_write_1(sc->sc_xreg, ATR_ROP, ROP_SRC);
mgx_write_1(sc->sc_xreg, ATR_ROP, ROP_SRC);
mgx_write_1(sc->sc_xreg, ATR_ROP, ROP_SRC);
mgx_write_1(sc->sc_xreg, ATR_ROP, ROP_SRC);
mgx_write_1(sc->sc_xreg, ATR_ROP, (uint8_t)~ROP_SRC);