Date : Sat, 06 Dec 1980001:29:00-MST
From : Frank J. Wancho <FJW@MIT-MC>
Subject: CRCK.ASM and MLIST.HEX Available
[ Administrivia: Do you prefer receiving these more detailed
descriptions of the files added to CPM; or the short one-liners?
Replies to INFO-CPM-REQUEST@MIT-MC, please. --Frank]
From Keith Petersen (W8SDZ@MC):
MC:CPM;CRCK ASM
CRCK.ASM version 4.2
by Keith Petersen, W8SDZ
(revised 10/6/80)
----> NOTE: MUST BE ASSEMBLED BY MAC <----
CRCK is a program to read any CP/M file and print a
CYCLIC-REDUNDANCY-CHECK number based on the CCITT standard
polynominal:
X^16 + X^15 + X^13 + X^7 + X^4 + X^2 + X + 1
Useful for checking accuracy of file transfers. More accurate
than a simple checksum.
Optionally will write an output file to the default drive, listing
the CRC's of all files checked in a single session.
COMMANDS: CRCK [drive:]<filename.filetype> [F]
MC:CPM;MLIST HEX
MLIST.COM - V3.4 by Keith Petersen, W8SDZ (revised 9/21/80)
This program lists any size ASCII file by name, reading up to 16k
of the file into memory at one time, in order to minimize disk
activity during printout.
Allows listing of multiple files by using normal CP/M ambiguous
file names (i.e., MLIST *.ASM). Before each file is printed, the
FILENAME.TYPE is displayed.
Use CTL-S to pause, CTL-C to abort.
Other characters are ignored.
This program allows CP/M 1.4 users to have protected ASCII files
on a remote system, provided that the CCP 'REN' (rename) and
'TYPE' functions have been changed to some other characters and
MLIST.COM has been renamed to TYPE.COM. To protect a file, rename
it so the last character of the file type is #. Example -
MYFILE.AS#
CP/M 2.x users may use 'TAG.COM' to set the f1' attribute of a
file, which will prevent this program from listing it.
===================