47 lines
1.1 KiB
Plaintext
47 lines
1.1 KiB
Plaintext
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To unprotect "The Dambusters" from Accolade use the following debug
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proceedure.
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1) Copy DAMB.EXE to a formated blank diskette.
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2) REN DAMB.EXE DAMB.BIN
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3) DEBUG DAMB.BIN
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4) Now search for the use of INT 13
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-s 0000 FFFF CD 13
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I found this call at 13BC:0116
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You may find it at a different location, but as long as the number ends
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in 16 you have the correct location. If it doesn't end with a 16 then
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you may have a different version and this unprotect may not work.
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5) Next look at the code after this call
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-u XXXX:XX16
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You should see the following:
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XXXX:XX16 CD13 INT 13
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XXXX:XX18 7306 JNB 0120
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If this is different, you may have a different version. Stop now.
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6) Now change the jump to an unconditional jump
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-e XXXX:XX18 EB 06
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7) Now write the changes back to disk and end the debug session
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-w
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-q
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8) REN DAMB.BIN DAMB.EXE
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9) Now place your original diskette in a safe place.
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March 25, 1985
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--------------------------------Disk Designer----------------------------------
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