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- Date: 23 May 1981 19:43-EDT
- From: Frank J. Wancho <FJW at MIT-MC>
- Subject: Minor Bug in List Buffer/File
- To: INFO-MTN at MIT-MC
- cc: FJW at MIT-MC, BUG-MTN at MIT-MC
-
- In trying to be clever and using Kelley Smith's trick to record ^Z's
- (1AH) in the buffer by changing them to 9AH (in TEXT MODE), I left
- code in the List Buffer/File routine which strips the parity bit
- before checking to see if it is 1AH, the CP/M text EOF mark. This
- turns out to be redundant anyway, as it is checked at another point
- (without the masking) before it is returned to this routine.
-
- Since my terminal sees ^Z as the cursor up command from EMACS, a List
- Buffer or File will display a premature and false End of File message
- when that character has been recorded as 9AH. However, the buffer is
- actually much longer as is still recording, and, more importantly, the
- entire buffer WILL be written to disk past the false ^Z.
-
- Here are the patches for MTN 2.1:
-
- 11E2 FE => 00 (11E4 for 2.2)
- 11E3 1A => 00 (11E5 for 2.2)
- 11E4 28 => 00 (11E6 for 2.2)
- 11E5 3F => 00 (11E7 for 2.2)
-
- Sorry for any inconvenience this may have caused you.
-
- --Frank
- Date: 4 March 1981 22:16-EST
- From: Frank J. Wancho <FJW at MIT-MC>
- Subject: New MTN (version 2.1) now available
- To: INFO-CPM at MIT-MC, INFO-MTN at MIT-MC
-
- A new MicroTELNET (MTN) Version 2.1 is now available. The HEX files
- are rather large and have been broken into three HEXn files each.
- (They are also available in the original form as one HEX file each.)
- They may be reconstructed using the technique described below.
-
- Also available, upon request, is a 4300H-based version for those of
- you using systems requiring that as the starting address of their
- TPA...
-
- The files are:
-
- MC:CPM;MTN21 HEX 321 recs, 41053 bytes, CRC= 76E1. MTN21.COM file CRC= D958
-
- MC:CPM;MTN21 HEX1 107 recs, 13680 bytes, CRC= 9D68.
- MC:CPM;MTN21 HEX2 107 recs, 13680 bytes, CRC= E0AD.
- MC:CPM;MTN21 HEX3 107 recs, 13693 bytes, CRC= 325F.
-
-
- MC:CPM;MTNMSG HEX 394 recs, 50413 bytes, CRC= 4B47. MTNMSGS.OVR file CRC= BBC1
-
- MC:CPM;MTNMSG HEX1 132 recs, 16830 bytes, CRC= 15D4.
- MC:CPM;MTNMSG HEX2 132 recs, 16830 bytes, CRC= 219C.
- MC:CPM;MTNMSG HEX3 131 recs, 16753 bytes, CRC= FEE6.
-
-
- The doc file is MC:CPM;MTN21 DOC which is mainly a "what's new"
- document.
-
- To merge the HEXn files into the required files:
-
- DDT MTN21-1.HEX
- IMTN21-2.HEX
- R
- IMTN21-3.HEX
- R
- ^C
- SAVE 57 MTN21.COM
-
- Similarly for MTNMSGS.OVR. (SAVE 70 MTNMSGS.OVR)
-
- Again, bug reports and/or feature requests to BUG-MTN@MIT-MC.
-
- --Frank
- Date: 28 February 1981 04:23-EST
- From: Frank J. Wancho <FJW at MIT-MC>
- Subject: MicroTELNET (MTN) Version 1.3
- To: INFO-CPM at MIT-MC, INFO-MTN at MIT-MC
-
- (Please excuse any duplicate of this message that some of you may
- receive.)
-
- Dear MTN Users,
-
- I am removing the MTN files from MC:CPM; and will "shortly" (whatever
- *that* means) upload a significantly newer version with MANY new
- features and ALOT of bugs fixed. Release of this new version will be
- what I consider premature, but only in the sense that I haven't been
- able to install and check out ALL the features that everybody has
- asked to be included. Since some of you have received a pre-release
- version of MTN 2.0 in various stages of development, the new release
- will be called MTN 2.1 to bring you back in sync.
-
- I must add that the reason for doing this was prompted by a rather
- embarrassing discovery of a piece of code that has been in the program
- from its beginnings which was lifted from another modem program and
- seemed to work. In tracking down a bug near that code, I found that
- what I had assumed to be correct was not. THIS ONLY APPLIES TO USERS
- OF MTN 2.0 AND BELOW WHO HAVE A D.C. HAYES MODEM. THE PMMI CODE IS
- CORRECT, EXCEPT THAT IT DOES NOT HANG UP THE PHONE WITH THE TERMINATE
- COMMAND.
-
- So, rather than leave this faulty code around for even more
- unsuspecting people to pick up and not let me know they have it (so as
- to be on the mailing list for upgrade announcements), I am removing it
- from further circulation.
-
- My sincere apologies for any inconvenience this may have caused you.
-
- --Frank
-
-
- [For those of you interested in what the bug was that got me upset:
-
- For some reason, the original author of this section of code decided
- to turn on the transmit enable signal BEFORE dialing the number,
- rather than AFTER receiving the carrier detect signal from the remote
- modem. What lead me to check this out was that I was trying to speed
- up the dialing back to specs and could not find out why another
- auto-dialing modem program I had was successful in completing calls,
- while my version, using the same timing was not. I also discovered,
- in the same section of code, that the modem setup was not correct
- either. Thus the withdrawal announcement.
-
- --fjw
- Date: 20 November 1980 01:24-EST
- From: Frank J. Wancho <FJW at MIT-MC>
- Subject: You're on this list!
- To: INFO-MTN at MIT-MC
-
- If you get this msg, you're on this list. If you do not wish to be on
- this list, send me a msg (and NOT this list).
-
- Patch locations for MTN 1.3 are available in MC:CPM;MTN13 PATCH to
- change ports addresses, etc.
-
- MTN 1.4 is actively in the works - more info on that soon.
-
- --Frank
-