word dx; /* col we are viewing on the virtual screen */
word dy; /* row we are viewing on the virtual screen */
word width; /* virtual width of the page */
word height; /* virtual height of the page */
} page_t;
word dx; /* col we are viewing on the virtual screen */
word dy; /* row we are viewing on the virtual screen */
word width; /* virtual width of the page */
word height; /* virtual height of the page */
} page_t;