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28 lines
836 B
Plaintext
28 lines
836 B
Plaintext
;-------------------------------
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; IDHolle
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; identify Dav Holle's encrypted bootloader
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;
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; in: $0800..$08FF contains T00,S00
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; first page of track buffer also contains T00,S00
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; A = 0
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; X = 0
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; out: C clear if Holle bootloader found
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; C set otherwise
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; A = 0
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; X = 0
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; all other registers & flags clobbered
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;-------------------------------
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!macro IDHolle {
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ldy #$10
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jsr compare ; if T00,S00,$00 ==
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!byte $01
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!byte $D8 ; CLD
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!byte $2C,$81,$C0; BIT $C081
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!byte $A9,$60 ; LDA #$60
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!byte $4D,$58,$FF; EOR $FF58
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!byte $D0,$FE ; BNE
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!byte $8D,$F3,$03; STA $03F3
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!byte $78
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; passport-test-suite/Crime Wave.woz [C=0] matches
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}
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