taglinefilesource code
maxscan2623drivers/char/console.cint rows, maxscan;
maxscan2636drivers/char/console.cmaxscan = rows*fontheight - 1;    /* Scan lines to actually display-1 */
maxscan2659drivers/char/console.cvde = maxscan & 0xff;      /* Vertical display end reg */
maxscan2661drivers/char/console.c((maxscan & 0x100) >> 7) +
maxscan2662drivers/char/console.c((maxscan & 0x200) >> 3);