mirror of
https://github.com/a2-4am/passport.git
synced 2024-05-28 06:41:28 +00:00
59 lines
1.8 KiB
Plaintext
Executable File
59 lines
1.8 KiB
Plaintext
Executable File
;-------------------------------
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; #D5D5F7
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; nibble count with weird bitstream
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; involving $D5 and $F7 as delimiters
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;
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; Ace Detective (Mindplay)
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; Cat 'n Mouse (Mindplay)
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; Cotton Tales (Mindplay)
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; Dyno-Quest (Mindplay)
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; Easy Street (Mindplay)
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; Fraction-oids (Mindplay)
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; Math Magic (Mindplay)
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; RoboMath (Mindplay)
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; NoteCard Maker (Pascal variant)
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; Les Sports (DC Heath) - variant wrapped by PHA/PLAs
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;-------------------------------
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!zone {
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;
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; always run on Pascal disks
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;
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lda gIsPascal
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;
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; if DOS 3.3-shaped bootloader, only run if we found
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; specific markers on T00,S00 earlier that are shared
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; by all the samples I have that use this protection.
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; (This filter is subject to revision if we find
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; additional samples.)
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;
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and gPossibleD5D5F7
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bne .exit
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ldy #$20
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jsr SearchTrack
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!byte $BD,$8C,$C0; LDA $C08C,X
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!byte $10,$FB ; BPL -$FB
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!byte $48 ; PHA
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!byte $68 ; PLA
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!byte $C9,$D5 ; CMP #$D5
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!byte $D0,$F5 ; BNE -$F5
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!byte $A0,$00 ; LDY #00
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!byte $8C,WILDCARD,WILDCARD; STY $xxxx
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!byte $BD,$8C,$C0; LDA $C08C,X
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!byte $10,$FB ; BPL -$FB
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!byte $C9,$D5 ; CMP #$D5
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!byte $F0,$0F ; BEQ +$0F
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!byte $C9,$F7 ; CMP #$F7
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!byte $D0,$01 ; BNE +$01
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!byte $C8 ; INY
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!byte $18 ; CLC
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!byte $6D ; ADC
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bcs .exit ; passport-test-suite/Cotton Tales.woz [C=0] matches
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; passport-test-suite/Notecard Maker.woz [C=0] matches
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jsr PrintByID
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!byte s_d5d5f7
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jsr modify3
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!byte $18 ; CLC
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!byte $90,$62 ; BCC +$62
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.exit
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}
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