x86/isa/rtc.c

268 	int s, clockcentury, cmoscentury;
279 		cmoscentury = mc146818_read(NULL,
284 		cmoscentury = mc146818_read(NULL, NVRAM_CENTURY);
287 		cmoscentury = mc146818_read(NULL, (centb = 0x37));
290 		cmoscentury = 0;
292 	if (!cmoscentury) {
298 	cmoscentury = bcdtobin(cmoscentury);
300 	if (cmoscentury != clockcentury) {
303 		       cmoscentury, clockyear);
307 		    ((cmoscentury == 19) && (clockcentury == 20) &&
315 	} else if (cmoscentury == 19 && rtc_update_century == 0)