7) One way to break this code is to write a simple routine to place
         an $FF in drive location $01FF and return to the programming
         that sent it in the first place. This is accomplished simply.
         Cursor down to a clear spot and go into the ASSEMBLY mode by
         typing . Here's the code:
      
              A C000 LDA #$FF  (A9 FF)
              A C002 STA 01FF  (8D FF 01)
              A C005 RTS       (60)
      
         When done, cursor down to a clear spot and disassemble at $C000
         < D C000 > to see the bytes needed. You'll find the following six
         bytes: A9 FF 8D FF 01 60. You can use the hex to decimal
         converter in Hesmon to convert the bytes to decimal
         <$A9 RET, and so on>. You'll find that the following is the
         decimal equivalent: 169 255 141 255 01 96.
      
      8) From the Utility Disk, load and run the Disk Doctor. Place the
         backup in the drive and using the b [b] command read in Track
         35/Sector 10. Starting at position $00, write in the six bytes.
         You may use the @ command to write them one at a time in Decimal
         (169 255 141 255 01 96). When the changes have been made, hit r
          to rewrite the block and y  for yes. This title is now
         broken from protection, and may be fast copied. Because of the
         Block Execute to Track 35/Sector 10, you may not file copy this
         title. The drive code, even though broken, must be in place on
         the disk.



      ALIENS : ACTIVISION
      
      
      Loading the original produces a rattle-free load, and an error
      scanner shows no standard errors. A backup made with the C-64 Fast
      Copier produces a non-working copy. A nybbled backup produces the
      same non-working copy. Before starting to work on this program,
      please make a (non-working) backup of the original, and a disk log
      to log the file addresses.
      
      1) Turn off your computer and insert your reset button assembly
         into the cartridge port. Turn on the computer again. Load the
         $C000 monitor from your Utility Disk < LOAD "49152",8,1 >. At the
         completion of the load, type < SY5 49152 > and hit < RETURN >.
         The monitor should be active now.
      
      2) With your backup in the drive and the monitor active, load the
         boot file < L "0:*",08 > . When the load is complete,
         disassemble memory at $02CB. You'll find a loader routine that
         loads in the

            K.J. REVEALED TRILOGY    PAGE [39]     (C)1990 K.J.P.B.