martin@minster.UUCP (03/07/87)
Can anyone tell me how to read (or write!) the time from the battery backed-up clock fitted in the IBM PC/AT? I know that the chip is a Motorola MC146818P, and believe that i/o locations 0x70 and 0x71 are involved, but havn't got any further. This information may be available in the hardware reference manual, but unfortunately I don't have access to this yet. Any help (By E-mail please) would be greatly appreciated. Source for programs which access/set the clock would be wonderful!! Martin usenet: mcvax!ukc!minster!martin surface: Martin C. Atkins Department of Computer Science University of York Heslington York Y01 5DD ENGLAND