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xtalk.pqt
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xtalk.pat
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1984-11-03
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XTALK2.PAT 18-Sep-84 1700
Keywords: CROSSTALK XTALK SIGNON MESSAGE DEBUG DOS20 COMM PATCH
This patch, using DEBUG and DOS 2.0, lets Crosstalk XVI version 3.4 bypass
the sign-on screen when XTALK is invoked, freeing you from the task of
waiting for it to appear so you can press a key and get to the meat of this
great program.
This patch to Crosstalk XVI version 3.4 bypasses the initial
sign-on screen. It is from the Triangle IBM-PC User's Group
in Raleigh, NC.
This procedure requires DOS 2.0's DEBUG utility, but will run
within version 1.1 if desired, when the patch is completed.
Take a COPY of your Crosstalk disk, not an original! If at any
time the responses from DEBUG are not as shown below, perform a
boot and begin again, since you should clear memory as much as
possible.(? - SPG)
On your disk, have DEBUG.COM and XTALK.EXE. Note that, in the
DEBUG sequence below, the "XXXX:" part of the address will
probably show different numbers - we are concerned with the 2nd
section of the address with respect to the warning above.
PROCEDURE:
A>REN XTALK.EXE XTALK.1 <- - your entry
A>DEBUG XTALK.1 <- - your entry
-U 377 1 3 <- - your entry, at "-" prompt
XXXX:0377 E84807 CALL 0AC2 <- - DEBUG response
-E 377 90 90 90 <- - your entry
-U 377 1 3 <- - your entry, to check if ok
XXXX:0377 90 NOP <- - DEBUG response
XXXX:0378 90 NOP <- - DEBUG response
XXXX:0379 90 NOP <- - DEBUG response
(Note! If the above DEBUG responses are NOT the same as on
your system - except, of course, for the XXXX's, which are
replaced with numbers - QUIT DEBUG BY ENTERING "Q" AT THE
PROMPT!)
-W <- - your entry(write your changes)
Writing EC00 bytes <- - DEBUG response
-Q <- - your entry(QUIT DEBUG)
A>REN XTALK.1 XTALK.EXE <- - your entry
You should now be able to run XTALK without the sign-on screen
appearing.
This patch is credited to Tony A. Rhea, 03/08/84.
This patch to Crosstalk XVI version 3.4 assures XMODEM compatibility
with CompuServe, by slowing down the wait time for blocks.
1. rename XTALK.EXE to XTALK.XT
2. ENTER DEBUG AND LOAD XTALK.XT, OR JUST "DEBUG XTALK.XT"
3. ENTER "S01 F000 B9 14 0" AT THE "-" PROMPT
NOTE: THE B9 IS THE CHARACTER BEFORE THE TIMING FACTOR
THAT WE WANT TO ALTER.
4. ENTER "D57A4" AT THE "-" PROMPT. THIS LAST VALUE IS WHERE
OUR FACTOR IS LOCATED.
5. VIEW THE OUTPUT AS BELOW, AND THEN CHANGE THE FACTOR OF
14 AT 57A5 TO C8, AS FOLLOWS:
E57A5 <Return>
xxxx:57a5 14. < enter C8 here and press Return
6. Write the file back to disk, entering "W"
7. Quit[Q].
Output on screen is as follows:
-s01 f000 b9 14 0 < input
xxxx:0619 <DEBUG output
xxxx:0A4F <
xxxx:43F1 <
xxxx:4404 <
xxxx:57A4 < end of DEBUG output
-d578 < input
xxxx:57A4 B9 14 00 E8-A8 15 72 1C 75 11 E8 7C <output
xxxx:57B0 01 E8 1F 18 E2 F1 4A 75-E6 BE 8C 42 E9 2D 02 3C
xxxx:57C0 01 74 12 E8 34 04 EB D7-E9 C9 01 80 3E 28 40 01
xxxx:57D0 75 03 E9 C7 00 E8 36 01-8A D8 E8 31 01 F6 D0 3A
xxxx:57E0 C3 74 06 E8 99 04 EB 70-90 FE C8 3A 06 7B 40 74
xxxx:57F0 06 E8 8B 04 EB 4F 90 C4-3E 33 40 B9 80 00 32 DB
xxxx:5800 E8 0B 01 02 D8 AA E2 F8-E8 03 01 3A C3 75 49 B9
xxxx:5810 80 00 BA 52 40 B4 28 CD-21 2E 80 3E 37 5E 01 75
xxxx:5820 09 2E C6 06 <end of output
-e57a5 <input
651A:57A5 14.c8 <this is the timer value we want to change!
-w
Writing EC00 bytes
-q <quit DEBUG
REN XTALK.XT XTALK.EXE
... and that's all there is to it. This patch doesn't do anything
at all to regular XMODEM timing from BBS's, etc. It merely slows
down the rate of request and timeout. Let me know of other ones,
ok?
Stephen P. Goodman CompuServe 74405,1334
ESP Software
Microstuf's number is 404-998-7798. This is where the patch is from.