-----------U.S. Atlas Action-----------
A 4am crack                  2015-05-12
---------------------------------------

Name: U.S. Atlas Action: Map Activities
Genre: educational
Year: 1985
Authors:
  - Jerry Chaffin
  - Bill Maxwell
  - Barbra Thompson
  - Allen Colebank
  - Educational Information Systems
Publisher: Developmental Learning
  Materials (DLM)
Media: single-sided 5.25-inch floppy
OS: Diversi-DOS (T02,S02 has the string
  "C1983 DSR" backwards)
Other versions: none (preserved here
  for the first time)
Identical cracks: World Atlas Action
  (4am crack no. 307)

                   ~

               Chapter 0
 In Which Various Automated Tools Fail
          In Interesting Ways


COPYA
  immediate disk read error

Locksmith Fast Disk Backup
  unable to read any track

EDD 4 bit copy (no sync, no count)
  works

Copy ][+ nibble editor
  all tracks use standard prologues
  (address: D5 AA 96, data: D5 AA AD)
  but modified epilogues
  (address: AA DE EB, data: AA DE EB)

Disk Fixer
  ["O" -> "Input/Output Control"]
    set Address Epilogue to "AA DE EB"
    set Data Epilogue to "AA DE EB"
  Success! All tracks readable!
  T00 -> looks like a DOS 3.3 RWTS
  T11 -> DOS 3.3 disk catalog
  T01,S09 -> startup program is "HELLO"

Why didn't COPYA work?
  modified epilogue bytes (every track)

Why didn't Locksmith FDB work?
  modified epilogue bytes (every track)

Next steps:

  1. AUTOTRACE to capture RWTS
  2. Advanced Demuffin to convert disk
     to standard format
  3. Post-Demuffin Patcher to patch the
     RWTS (if necessary)

                   ~

               Chapter 1
In Which We Attempt To Use The Original
    Disk As A Weapon Against Itself


[S6,D1=original disk]
[S6,D2=blank disk]
[S5,D1=my work disk]

]PR#5
CAPTURING BOOT0
...reboots slot 6...
...reboots slot 5...
SAVING BOOT0
CAPTURING BOOT1
...reboots slot 6...
...reboots slot 5...
SAVING BOOT1
SAVING RWTS

]BRUN ADVANCED DEMUFFIN 1.5

["5" to switch to slot 5]

["R" to load a new RWTS module]
  --> At $B8, load "RWTS" from drive 1

["6" to switch to slot 6]

["C" to convert disk]

                 --v--

ADVANCED DEMUFFIN 1.5    (C) 1983, 2014
ORIGINAL BY THE STACK    UPDATES BY 4AM
=======PRESS ANY KEY TO CONTINUE=======
TRK:...................................
+.5:
    0123456789ABCDEF0123456789ABCDEF012
SC0:...................................
SC1:...................................
SC2:...................................
SC3:...................................
SC4:...................................
SC5:...................................
SC6:...................................
SC7:...................................
SC8:...................................
SC9:...................................
SCA:...................................
SCB:...................................
SCC:...................................
SCD:...................................
SCE:...................................
SCF:...................................
=======================================
16SC $00,$00-$22,$0F BY1.0 S6,D1->S6,D2

                 --^--

]PR#5
]CATALOG,S6,D2

C1983 DSR^C#254
043 FREE

 B 006 H
 T 003 ASTATES
 B 009 LIB
 B 003 STATES.COR
 T 003 STATES.NAMES
 B 008 USE.OBJ0
 B 014 STATES.PAC
 B 002 SYMBOLS.PAC
 B 014 PLOTSTATE1
 B 002 NAMETAB
 B 015 PLOTSTATE2
 B 003 STNAME
 B 009 LOGO2.SCR
 B 002 RENAME
 B 014 RESCRNS1
 B 005 REFILE0
 T 005 HT
 B 003 STFILE2
 B 013 RESCRNS2
 B 005 INTABLE
 B 024 SCTABLE
 B 005 REFILE5
 B 002 USFILE6
 T 002 RE.NAMES
 B 005 USFILE2
 B 055 EDIT.OBJ
 B 006 USFILE3
 B 007 USRMAT.OBJ
 B 010 OPP.OBJ
 B 004 USFILE4
 B 017 SC.SCR
*B 017 RUNTIME
 B 004 START.OBJ
 B 009 CONSEL.OBJ
 B 010 USMENU.OBJ
 B 004 EBOOT.OBJ
 B 005 REFILE2
 B 005 REFILE3
 B 053 GAME.OBJ
 B 005 REFILE4
 B 029 SAVER.OBJ
 T 002 STATES.CODE
 B 003 USFILE5
 B 003 STFILE1
 B 003 STFILE3
 B 003 STFILE0
 B 003 STFILE4
 B 003 STFILE5
 B 005 REFILE6
 B 002 DISK
 B 005 REFILE1
 A 002 HELLO
 B 003 STFILE6

]RUN HELLO
...works...

[S6,D1=demuffin'd copy]

]PR#6
...grinds...

                   ~

               Chapter 2
 In Which We Remove All Traces Of Copy
Protection Using An Automated Tool That
   I Wrote For Just Such An Occasion


[S6,D1=demuffin'd copy]
[S5,D1=my work disk]

]PR#5
]BRUN PDP

T00,S03,$91 change AA to DE
T00,S03,$9B change DE to AA
T00,S03,$35 change AA to DE
T00,S03,$3F change DE to AA
T00,S06,$AE change AA to DE
T00,S06,$B3 change DE to AA
T00,S02,$9E change AA to DE
T00,S02,$A3 change DE to AA

]PR#6
...works...

Quod erat liberandum.

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A 4am crack                     No. 308
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