CG6_FBC_CLIPMAXX
FBC_WRITE(sc, CG6_FBC_CLIPMAXX, ri->ri_width - 1);
FBC_WRITE(sc, CG6_FBC_CLIPMAXX, ri->ri_width - 1);
FBC_WRITE(sc, CG6_FBC_CLIPMAXX, ri->ri_width - 1);
FBC_WRITE(sc, CG6_FBC_CLIPMAXX, ri->ri_width - 1);
FBC_WRITE(sc, CG6_FBC_CLIPMAXX, ri->ri_width - 1);