Proper credit to original PROGRAM author
History of UNERA
Info on UNERA
Command Format
Version info on this help file
:Proper credit
Proper credit is given to the original author, who by writing
this software will save many adult computer hobbyists from crying
Original author: Gene Cotton
Original publication: Interface Age, December 1981
All I did was type in the ASM file from the magazine, assemble it
to insure that it ran, and then disseminate the ASM & HLP files to RCP/M
systems accross the US of A. Oh yes, I wrote this HLP file also.
I take credit for typing in this HLP file in the format established
previously by another.
This help file is excerpted from the original printed article
accompaning the UNERA.ASM program listing
Henry B. Rothbrg - Woodbridge, Ct 11/18/81
:History of UNERA
For the last few years I've been looking for a 'restore' or
'unera' type program to forgive my errors.
I found it in the December '81 issue of Interface Age. If you
don't subscribe, you should !
:Info
The following is excerpted from the IA article
The safest and most reliable method of guarding a disk file
is to have a back up copy.
Often in the fever of creation we forget.
Sometimes we even go to 'clean-up' our work disk, and in error
type
A>ERA *.BAS
When what we meant was:
A>ERA *.BAK
So now we're in big trouble, we've just erased the last four hours,
or days, of work. What to do ?
To the rescue, comes UNERA !
The UNERA.ASM program is written to run on an 8080, 8085 or Z80
(registered tmark of you know who) microprocessor.
To use UNERA, look over the source file and change it for CP/M 2.2
or 1.4 as required.
Check the disk translate table to be sure it is correct for your
disk system. Change if necessary.
Assemble UNERA
Load ERA
Then TRY it on a scratch disk !
:Command format
In order to use UNERA you MUST know the name of the file(s) to reclaim/
restore/un-erase.
A>UNERA D:FILENAME.EXT
Will bring back into existance the file D:FILENAME.EXT that
you erased in error.
For limitations on files that may be un-erased, see the writen article
in IA, 12/81 page 98.
You may have problems un-erasing a file if you have created new files
since you erased it. The CP/M operating system may have re-used the
disk space where your erased file is/was.
Test the un-erased file to insure that UNERA worked properly.
You must give the disk drive when specifing the file to be un-erased,
or the software assumes drive A, not the logged in drive !
:Version info
