PATCHARK.DOC Copyright 1988 by Dale H. Cook

Documentation for PATCHARK.AZM


     Brian Moore's ARK.COM program allows CP/M systems to create archive files
in the same format as those creates on MS-DOS systems. As of the present ver-
sion (ARK035.COM) automatic date/time stamping of the created archives is not
fully supported. However, beginning with Version 03 the date/time storage
within ARK has been standardized, and Brian intends to maintain that standard
in all later versions so that users can add their own RTC support routines.

     PATCHARK.AZM will patch ARK035.COM and later versions to provide RTC
support for the Kaypro 4-84 and 10-84 computers with the stock MM58167A real-
time-clock. Two equates, set for ARK035, will have to be changed by the user
for later versions. START must be set to the address of the jump instruction
that begins ARK - low-byte at 0101H, high-byte at 0102H. ENDARK must be set to
the first non-used byte after the end of ARK. SUPERZAP or another disk editor
can be used to find these values. The value loaded into A at the label GET0:
is the current year in BCD - thus 88H as supplied here for 1988. Be sure to
change this value and re-patch ARK every January. (The Kaypro RTC does not
support the current year) Use Z80MR to assemble PATCHARK and MLOAD to link it
to ARK:

A0>Z80MR PATCHARK.AAZ (should assemble with no errors)

A0>MLOAD ARK.COM=ARK.COM,PATCHARK.HEX

     That's all there is to it - when you run the patched version it will
fetch the date and time BCD values from the Kaypro RTC, convert them to binary
and store them in the correct locations in ARK, then execute the program
proper.

Dale H. Cook, August 16, 1988

CompuServe 71370,2635
GEnie DHCOOK