146818

Offset	Description	counter/RAM
0x00	Current second (Real Time Clock)	Counter
0x01	Alarm second
0x02	Current minute (Real Time Clock)
0x03	Alarm minute
0x04	Current hour (Real Time Clock)
0x05	Alarm hour
0x06	Current day of week (Real Time Clock)
0x07	Current date of month (Real Time Clock)
0x08	Current month (Real Time Clock)
0x09	Current year (Real Time Clock)
0x0a	RTC Status Register A
0x0b	RTC Status Register B
0x0c	RTC Status Register C
0x0d	RTC Status Register D
0x0e	POST diagnostics status byte	RAM
0x0f	Shutdown status byte
0x10	Diskette drive types
0x11	Reserved
0x12	Hard Disk drive types
0x13	Reserved
0x14	Equipment byte
0x15	Base memory (low byte)
0x16	Base memory (high byte)
0x17	Extended memory (low byte)
0x18	Extended memory (high byte)
0x19-0x2d	Reserved
0x2e	Check sum (low byte)
0x2f	Check sum (high byte)
0x30	Extended memory above 1 Mb (low byte)
0x31	Extended memory above 1 Mb (high byte)
0x32	Current century
0x33	Information Flags
0x34-0x3f	Reserved

smnb