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ADTCK (ADT Transfer Checker) July 2000 Update
Usually, the transfer of the Apple II ADT program from
the PC-- the transfer you do at 300 baud-- will go fine and
ADT will get BSAVED and work like it should.
In case ADT does not seem to be working correctly, you
may want to check that the transferred program was not
corrupted. ADTCK is a short program you can type in and run
to check that you have a good copy of ADT on your Apple II.
Type in one of the programs listed below and save it as
ADTCK on the same disk as the ADT you've transferred. Then,
RUN ADTCK and check the numbers you get against the checksums
listed after the program. (The program displays intermediate
sums and a final sum.)
Note: Changing the saved default parameters of ADT via an
ADTConfig program, etc. will change the checksum and render
the checksum test invalid.
ADTCK for ADT v1.21, ADT v1.22, ADTGS (v.90), ADTgs (v.91)
10 TEXT : HOME
20 PRINT CHR$ (4)"BLOAD ADT,A$4000"
40 FOR I = 0 TO 2579
50 Z = Z + PEEK (16384 + I)
55 IF I / 500 = INT (I / 500) THEN PRINT "CURRENT SUM= ";Z
60 NEXT I
70 PRINT "CHECKSUM= ";Z
Checksums
ADT v1.21 ADT v1.22 for 8-bit A2's using SSC
76 76
53958 53958
101079 101079
158919 158919
224503 224504
307268 307117
313020 312869 <-- final sums
ADTGS (v.90) ADTgs (v.91) for Apple IIgs
76 76
39865 48588
89559 97886
142200 151354
206728 201728
289377 284376
295079 290904 <-- final sums
ADTCK for ADT.CC versions
10 TEXT : HOME
20 PRINT CHR$ (4)"BLOAD ADT.CC,A$4000"
40 FOR I = 0 TO 2566
50 Z = Z + PEEK (16384 + I)
55 IF I / 500 = INT (I / 500) THEN PRINT "CURRENT SUM= ";Z
60 NEXT I
70 PRINT "CHECKSUM= ";Z
Checksums
ADT.CC (v1.21) "ADTcomm" for 8-bit A2's with non-SSC interfaces
76
53477
100262
159238
241547
326300
331037 <-- final sum*