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toinet
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Inscrit le: 15 Juin 2007
Messages: 2921
Localisation: Le Chesnay, France
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 Posté le: Dim 10 Sep 2017, 15:11 Sujet du message: Stickybear Opposites IIgs (Weekly Reader Software, 198?) |
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#948 - Few/Many, Full/Empty, etc. This is another great eduware from Weekly Reader Software / Optimum Resource.
Disk structure
This is a GS/OS application running from a standard ProDOS 3.5" disk. But, as usual, there are bad blocks (#$55 and above). The protection checks the bad block. If there is none, we have a copy, otherwise we have an original disk.
How to copy
Use ZZCopy or Photonix II to copy your original disk. Then, store it in a dry and safe place. Thank you Alex for the disk image.
How to crack
Thanks to the Flaming Bird Disassembler, we search for the usual READ_BLOCK pattern in the OPP.SYS16 file and we find it in the second segment at address $3A1E. The routine begins at $3A07 and is called at $0318. We will replace the JSR (20) with a BIT (2C)
Launch Block.Warden
Prefix /SB.OPPOSITES
Follow file OPP.SYS16
At offset $55D: 20 -> 2C
The disk image is available at http://www.brutaldeluxe.fr/crack/
Reboot and... enjoy,
LoGo
9/2017 |
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toinet
Site Admin
Inscrit le: 15 Juin 2007
Messages: 2921
Localisation: Le Chesnay, France
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| Posté le: Dim 10 Sep 2017, 15:11 Sujet du message: |
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Some code
| Code: |
The Flaming Bird Disassembler Written by Ferox - (c) 1994 Phoenix corporation
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
02/3A07: 22A800E1 JSL GSOS
02/3A0B: 2000 DW $0020 ; GetDevNumber
02/3A0D: 573A0200 ADRL $00023A57
02/3A11: 9005 BCC $3A18
02/3A13: 202D3A JSR $3A2D
02/3A16: 80EF BRA $3A07
02/3A18: AD5B3A LDA $3A5B
02/3A1B: 8D6B3A STA $3A6B
02/3A1E: 22A800E1 JSL GSOS
02/3A22: 2200 DW $0022 ; READ_BLOCK
02/3A24: 6B3A0200 ADRL $00023A6B
02/3A28: B002 BCS $3A2C
02/3A2A: 80DB BRA $3A07
02/3A2C: 60 RTS
02/3A2D: A542 LDA $42
02/3A2F: 18 CLC
02/3A30: 69266F ADC #$6F26
02/3A33: 8538 STA $38
02/3A35: A544 LDA $44
02/3A37: 853A STA $3A
...
02/3A57: 5D3A0200 ADRL $00023A5D ; device name
02/3A5B: 0000 DW $0000 ; device num
02/3A5D: 0D2F53422E STR '/SB.Opposites'
02/3A6B: 0000 DW $0000 ; device num
02/3A6D: 62000000 ADRL $00000062 ; buffer ptr
02/3A71: 5500 DW $0055 ; block num
02/3A73: 0000 BRK $00
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
The Flaming Bird Disassembler Written by Ferox - (c) 1994 Phoenix corporation
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
02/0302: 206538 JSR $3865
02/0305: 20C737 JSR $37C7
02/0308: 207626 JSR $2676
02/030B: A90000 LDA #$0000
02/030E: A20C00 LDX #$000C
02/0311: 8680 STX $80
02/0313: 202816 JSR $1628
02/0316: 6480 STZ $80
02/0318: 20073A JSR $3A07 ; call protection
02/031B: 20B530 JSR $30B5
02/031E: 20B708 JSR $08B7
02/0321: 20E721 JSR $21E7
02/0324: A21D032200 _ACEBootInit
02/032B: A208032200 _SoundShutDown
02/0332: A206032200 _EMShutDown
02/0339: A204032200 _QDShutDown
02/0340: A203032200 _MTShutDown
02/0347: A52E LDA $2E
02/0349: 48 PHA
02/034A: A202112200 _DisposeAll
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
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