the routine that either does a JSR or a JMP to the protection
        routine at $9626. Again change the $0001 address to $36 and use
        the HUNT command to search for a JSR 9626 or a JMP 9626 < H 0800
        BFFF 20 26 96 >, and < H 0800 BFFF 4C 26 96 >. You should get a
        76A1 returned.  Disassembly of $76A1 shows a JSR 9626.
        Occasionally you will have to change the JSR (20) to a JMP (4C)
        or completely erase it with NOP's EA EA EA. As before, record
        the bytes at $7600 so we may find the sector containing this
        code on the disk. $7600= 2F 5D 11 D0 BE 20 D0 BE. Again power
        down and on again and load the Disk Dr from the Utility disk.
        Search the first bytes of each sector until you locate the
        desired pattern. We found it at Track 19/Sector 10. The 20 26 96
        bytes are located at position $A1 (72 in decimal).

        8) Reload the TEST parameter for another change. List out line
        100. Type a 99 over the 100 in line 100 and Edit
        Tr=19:SE=10:FB=72:NB=03 (Tr=TRack(19), SE=SEctor(10), FB=First
        Byte Position (72), NB=NUmber of bytes (03) ). Hit
        RETURN to lock in. Finally add a new data statement. In a clear
        spot, type: < 1900 DATA 234,234,234 > and hit RETURN. Again,
        save the new parm to the work disk < SAVE "TEST 2",8 >. Run the
        parameter on the backup again. This time you'll find it works
        fine. This title although not file copyable is completely void
        of copy protection. Note: if you are confused as to how the
        parameter should look after you're done, list out the Express
        Raider parm from the Utility disk and list it out. It may become
        a little clearer to you.



        BREAKTHROUGH : DATAEAST

        Procedure:

        Loading the original disk produces a rattle free load, and an
        error scan shows no standard errors. A backup made with the C-64
        Fast Copier produces a non working copy, A backup made with a
        nybbler produces the same non working backup. Before starting to
        work on this title, make a fast-copier backup and a formatted work
        disk. Because the only file on the directory of this title is the
        loader, special procedures will be required. You will need a reset
        button of some sort.

        Working with your backup:

        1) With the reset switch in place, load the backup three or
        four times to get the feel of when the program stalls. When you have
        gotten the timing down, try to reset the computer just before
        that stall occurs. You will hear the head swing out if you are
        too late. We want to reset just before it does. After reset,


            K.J. REVEALED TRILOGY    PAGE [61]     (C)1990 K.J.P.B.