/************************************************************************/
/* Clear screen and then draw 16 boxes                                  */
/************************************************************************/

solid_box16()
        {
        int     i, j, x, y, color;
        solid_box(0,0,640,350,0);               /* Clear screen         */
        for (j = 0; j < 4; j++)                 /* Loop over rows of b's*/
                for (i = 0; i < 4; i++)         /* Loop over columns    */
                        {
                        y     = j * 200/4;      /* Draw the box         */
                        x     = i * 640/4;
                        color = i + j * 4;
                        solid_box(x, y, x + 640/4, y + 200/4, color);
                        }
        }