DGilbert.ES@PARC-MAXC.ARPA (07/18/83)
Thanks for the information on MDM711. It will help. However, some "HOSTS" are upset by any control characters. Namely, the electronic mail system via Tymnet. Guess I'll keep looking for the source file. Doug.
W8SDZ%mit-mc@sri-unix.UUCP (07/24/83)
From: Keith Petersen <W8SDZ@mit-mc>
The following is forwarded from my RCPM system. Irv Hoff
(the author of MDM711) has seen this and approves. Because
this is a simple fix, there will be no update to MDM711 but
it will be incorporated in the next version if/when it comes
out. There are no plans for a new version at this time.
--keith
--forwarded file: MDM711.FIX--
MDM711.FIX July 14, 1983
There is a problem with MDM711, in that when you are transfering
files in the ASCII mode the CTRL 'Y' character that is used to
toggle open the memory buffer is not trapped by the MDM711
program. By not trapping the character it is sent to the system
you are downloading from. In the case of many mainframe systems
the Ctrl 'Y' character is decoded as an EOF and the command that
you were using to transmitt the ASCII text will be terminated
before you are able to capture any of the text.
There is a simple fix which can be made by using DDT or a similar
type program to modify the MDM711XX.COM file you are using.
This fix does not alter the code but it does vector the program
off to a MORE correct location than it is now. All the tests I
have performed so far seems to indicate that the change does not
cause any furthur problems except for the fact that now only the
Ctrl 'Y' is trapped, but the Ctrl 'R' (used to close your capture
buffer) is still passed to the transmitting system. As fas as I
know the Ctrl 'R' will not cause any problems if it does you will
need to modify the MDM711.ASM file at NOLST1: (123C H) TO NOLST3:
(125D H) so that it works correctly.
I was reluctant to make changes to the MDM711.ASM file since it
was so new, and this simple single byte 'FIX' seems to take care
of the problem.
STEP 1 : A>DDT MDM711XX.COM
DDT VERS 2.2
NEXT PC
4300 0100
STEP 2: -S125C Type in S125C and then CR
STEP 3: 125C 10 44 Type in 44 and then CR
STEP 4: 125D 19 . Type in . and then CR
STEP 5: -G0 Type in G0 to exit DDT
STEP 6: A>SAVE 66 MDM711XX.COM (File now modified)
Thats all you need to do to the program. You can do it to the
MDM711XX.COM file you are using or to the MASTER MDM711.COM file
that is in the MDM711.LBR file. If you do it to the MASTER
MDM711.COM file then it will propogate to other configurations of
the MDM711 program with the proper overlay file.
Dennis Recla
Dallas, Texas Data 214 681-4789 300 baud
With Ample assistance of Lee Wilkerson