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add support for JMP BB03 variant [Alice in Wonderland, Sum Ducks], consolidate other BB03 patchers
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4am
parent
a56a2a3537
commit
cef1aeb329
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@ -88,8 +88,7 @@ AnalyzeT00
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!source "../patchers/mecc4.a"
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!source "../patchers/rol1e.a"
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; !source "../patchers/thunder.a"
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!source "../patchers/jsrbb03.a"
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!source "../patchers/davidbb03.a"
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!source "../patchers/bb03.a"
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!source "../patchers/rwtsswap.a"
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!source "../patchers/rwtsswap2.a"
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!source "../patchers/border.a"
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96
src/patchers/bb03.a
Executable file
96
src/patchers/bb03.a
Executable file
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@ -0,0 +1,96 @@
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;-------------------------------
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; #BB03
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; boot1 calls $BB03 for a self-decrypting nibble check
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;
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; variant 1 (JSR $BB03)
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; Classifying Animals with Backbones
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; EduCalc
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;
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; variant 2 (JSR $BB03 but David-DOS)
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; Case of the Great Train Robbery
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; Case of the Missing Chick
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; Mrs. Wigglesworth's Secret
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; Mystery of the Witch's Shoes
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;
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; variant 3 (JMP $BB03)
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; Sum Ducks
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; Alice in Wonderland
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;-------------------------------
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!zone {
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sec
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bit gMode ; nothing to do here in verify-only mode
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bpl .noButInYellow
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lda #$07 ; sector to check for David-DOS variant
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ldx gIsDavidDOS
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beq .maybe
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ldx gIsBoot0 ; if DOS 3.3 boot0 loader
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bne .noButInYellow
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ldx gIsBoot1 ; and DOS 3.3 boot1 loader
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bne .noButInYellow
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lda #$05 ; sector to check for DOS 3.3 variant
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.maybe
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ldx #$03
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ldy #$25
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jsr compare ; if T00,S0(5|7),$03 ==
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!byte $4E,$06,$BB,$71,$6E
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!byte $0A,$BB,$40,$27,$6E,$0F,$BB,$DD
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!byte $1B,$BB,$6E,$15,$BB,$DC,$1E,$BB
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!byte $6E,$25,$BB,$72,$00,$BB,$B3,$00
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!byte $B8,$99,$00,$BB,$C8,$A0,$F4,$B0
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bcs .no
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sta gDisplayBytes
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lda #s_bb03
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jsr PrintByID
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lda gIsDavidDOS
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beq .variant2
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lda #$01
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ldx #$38
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ldy #$03
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jsr compare ; if T00,S01,$38 ==
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!byte $20,$03,$BB; JSR $BB03
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bcc .variant1
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ldy #$03
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jsr compare ; if T00,S01,$38 ==
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!byte $4C,$03,$BB; JMP $BB03
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bcs .no
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lda #$05
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ldx #$6B
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ldy #$05
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jsr compare ; if T00,S05,$6B ==
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!byte $06,$26,$7D,$39,$41; encrypted, decrypts to 'LDA $C08C,X / BPL -'
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.noButInYellow
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bcs .no
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.variant3
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ldy #$02
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jsr modify ; then set T00,S05,$6B =
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!byte $6B,$F6 ; encrypted, decrypts to 'BNE +$5C' which will unconditionally branch to success path at $BBC9
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lda #$06
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ldx #$0F
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ldy #$01
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jsr modify ; and set T00,S06,$0F =
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!byte $89 ; encrypted, decrypts to $10 which is the expected nibble count value
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bvc .no ; unconditional branch
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.variant1
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lda #$05
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ldx #$03
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ldy #$09
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jsr modify ; then set T00,S05,$03 =
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!byte $A9,$B5
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!byte $48
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!byte $A9,$18
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!byte $48
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!byte $4C,$93,$B7
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bvc .no ; uncondtional branch
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.variant2
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lda #$07
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ldx #$03
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ldy #$0B
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jsr modify ; then set T00,S07,$03 =
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!byte $A9,$B5
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!byte $48
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!byte $A9,$18
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!byte $48
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!byte $A0,$04
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!byte $4C,$A9,$B7
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.no
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}
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@ -11,7 +11,6 @@
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; Fraction-oids
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; Math Magic
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; RoboMath
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; Sum Ducks
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; NoteCard Maker
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;-------------------------------
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!zone {
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@ -1,54 +0,0 @@
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;-------------------------------
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; #DAVIDBB03
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; David-DOS boot0 calls $BB03
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; for a self-decrypting nibble
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; check which continues to $B7A9
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; on success
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; e.g. Case of the Great Train
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; Robbery, Case of the Missing
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; Chick, Mrs. Wigglesworth's Secret
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; Mystery of the Witch's Shoes
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;-------------------------------
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!zone {
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sec
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bit gMode ; nothing to do here in verify-only mode
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bpl .branchexit
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lda #$00
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ldx #$00
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ldy #$38
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jsr compare ; and T00,S00,$00 ==
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!byte $01,$A5,$27,$C9,$09,$D0,$17,$A5
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!byte $2B,$4A,$4A,$4A,$4A,$AA,$09,$C0
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!byte $85,$3F,$A9,$00,$9D,$78,$04,$9D
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!byte $F8,$04,$A9,$5C,$85,$3E,$AE,$FF
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!byte $08,$30,$15,$BD,$ED,$08,$85,$3D
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!byte $CE,$FF,$08,$AD,$FE,$08,$85,$27
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!byte $CE,$FE,$08,$A6,$2B,$6C,$3E,$00
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.branchexit
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bcs .exit
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lda #$00
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ldx #$8B
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ldy #$03
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jsr compare ; and T00,S00,$8B ==
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!byte $20,03,$BB
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bcs .exit
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lda #$07
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ldx #$03
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ldy #$25
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jsr compare ; and T00,S07,$03 ==
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!byte $4E,$06,$BB,$71,$6E
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!byte $0A,$BB,$40,$27,$6E,$0F,$BB,$DD
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!byte $1B,$BB,$6E,$15,$BB,$DC,$1E,$BB
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!byte $6E,$25,$BB,$72,$00,$BB,$B3,$00
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!byte $B8,$99,$00,$BB,$C8,$A0,$F4,$B0
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bcs .exit
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lda #s_jsrbb03
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jsr PrintByID
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lda #$07
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ldx #$03
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ldy #$0B
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jsr modify ; then set T00,S07,$03 =
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!byte $A9,$B5,$48,$A9,$18,$48,$A0,$04
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!byte $4C,$A9,$B7
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.exit
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}
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@ -1,44 +0,0 @@
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;-------------------------------
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; #JSRBB03
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; boot1 calls $BB03 for a self-
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; decrypting nibble check which
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; continues to $B793 on success
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; e.g. Classifying Animals with
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; Backbones, EduCalc
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;-------------------------------
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!zone {
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bit gMode ; nothing to do here in verify-only mode
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bpl .exit
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lda gIsBoot0 ; if DOS 3.3 boot0 loader
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bne .exit
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lda gIsBoot1 ; and DOS 3.3 boot1 loader
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bne .exit
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lda #$01
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ldx #$38
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ldy #$03
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jsr compare ; and T00,S01,$38 ==
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!byte $20,$03,$BB
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bcs .exit
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lda #$05
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ldx #$03
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ldy #$25
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jsr compare ; and T00,S05,$03 ==
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!byte $4E,$06,$BB,$71,$6E
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!byte $0A,$BB,$40,$27,$6E,$0F,$BB,$DD
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!byte $1B,$BB,$6E,$15,$BB,$DC,$1E,$BB
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!byte $6E,$25,$BB,$72,$00,$BB,$B3,$00
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!byte $B8,$99,$00,$BB,$C8,$A0,$F4,$B0
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bcs .exit
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lda #s_jsrbb03
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jsr PrintByID
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lda #$05
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ldx #$03
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ldy #$09
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jsr modify ; then set T00,S05,$03 =
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!byte $A9,$B5
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!byte $48
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!byte $A9,$18
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!byte $48
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!byte $4C,$93,$B7
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.exit
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}
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@ -63,7 +63,7 @@ StringTable
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!word .jmpb4bb
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!word .jmpb400
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!word .jmpbeca
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!word .jsrbb03
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!word .bb03
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!word .thunder
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!word .jmpae8e
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!word .diskvol
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@ -146,7 +146,7 @@ StringTable
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; can be set directly before calling PrintByID.
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;
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.header
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!text "Passport by 4am 2018-09-27",$00
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!text "Passport by 4am 2018-09-28",$00
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.mainmenu
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!text "________________________________________",$8D,$8D,$8D,$8D,$8D,$8D,$8D
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!text " "
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@ -315,8 +315,8 @@ StringTable
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!text "T00,S02 RWTS requires extra nibbles and",$8D
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!text "timing bits after the data prologue by",$8D
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!text "jumping to $BECA.",$8D,$00
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.jsrbb03
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!text "T00,S05 Found a self-decrypting",$8D
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.bb03
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!text "T%t,S%0 Found a self-decrypting",$8D
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!text "protection check at $BB03.",$8D,$00
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.thunder
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!text "T00,S03 RWTS counts timing bits and",$8D
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@ -50,7 +50,7 @@ s_e7 = $2C
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s_jmpb4bb = $2D
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s_jmpb400 = $2E
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s_jmpbeca = $2F
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s_jsrbb03 = $30
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s_bb03 = $30
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s_thunder = $31
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s_jmpae8e = $32
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s_diskvol = $33
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