MAX_DISK_SIZE
set_capacity(disk, MAX_DISK_SIZE * 2);
set_capacity(disk, MAX_DISK_SIZE * 2);
floppy_sizes[drive] = MAX_DISK_SIZE << 1;
floppy_sizes[i] = MAX_DISK_SIZE << 1;
floppy_sizes[TOMINOR(drive)] = MAX_DISK_SIZE << 1;