scheme. This is the second protection routine.
Working with your original:
7) Place the original disk in the drive and Type GO C024 to start
the program up. The drive should start up and in a short time
the game menu will come on the screen. At this point, reset the
computer and re-SYS the monitor back in with SYS 32768.
Working with your backup:
8) Checking the disk log provides us with the start and end address
of the LOADER file. Again, remember to add an extra byte to the
end address. Save it back to your BACKUP
<> S "@0:LOADER",08,C000,CF81 <>. When the save is complete your
backup will be completely broken. One small problem remains. The
directory cannot be read properly. To fix it easily, just use
the NAME/ID CHANGER on your utility disk. Be sure to use five
figures when you give it a new ID number. For example, you could
name it BREAK DANCE and renumber it BD 2A.
PITSTOP II : EPYX
Procedure:
Loading the original produces a rattle free load, and an error
scan shows a number twenty error on track 16, sector 20. A
backup made with the C-64 Fast Copier provides a non-working
backup. Nybble utilities are capable of providing a backup.
Before starting to work on this title, please make a backup,
format a blank work disk, and do a disk log (print-out is best).
Working with your original:
1) Turn off your computer and insert your reset button assembly
into the cartridge port. Turn the computer on again and, from
the utility disk, load the $C000 monitor <> LOAD "49152",8,1 <>.
Sys the monitor in with SYS 49152 and hit RETURN. Let's begin by
loading and inspecting the boot file <> L "PITSTOP",08 <>. At
the end of the load, start disassembly at $02A7 . Scroll
down through the code and notice that the boot loads the file
RUN ME and jumps to $0820.
2) Load the RUN ME file <> L "RUN ME",08 <>. Disassemble memory
starting at $0820 and scroll down through the code.
This file loads all game files and then at $08E4 does a jump to
$9403. The disk log tells us this address is located in the PITS
file. Load the PITS file <> L "1PITS",08 <>. When the load is
K.J. REVEALED TRILOGY PAGE [47] (C)1990 K.J.P.B.
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