pm3fb_bitblt
pm3fb_bitblt(sc, xs, y, xd, y, width, height, 3);
pm3fb_bitblt(sc, x, ys, x, yd, width, height, 3);
static void pm3fb_bitblt(void *, int, int, int, int, int, int, int);
sc->sc_gc.gc_bitblt = pm3fb_bitblt;
pm3fb_bitblt(sc, x, y, x, y, wi, he, 12);
pm3fb_bitblt(sc, x, y, x, y, wi, he, 12);