cv3d_setspritepos
int cv3d_setspritepos(struct grf_softc *, struct grf_position *);
cv3d_setspritepos(gp, &info->pos);
cv3d_setspritepos(gp, &info->pos);
cv3d_setspritepos (gp, &info->pos);
return(cv3d_setspritepos (gp, (struct grf_position *) data));