mirror of https://github.com/a2-4am/passport.git
53 lines
1.4 KiB
Plaintext
Executable File
53 lines
1.4 KiB
Plaintext
Executable File
;-------------------------------
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; #RUNHELLO
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; search and destroy a protection check
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; in a startup file that runs the real
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; startup program after succeeding
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; e.g. Microzine 15, Alpine Tram Ride
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;-------------------------------
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_runhello
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lda gIsProDOS ; this exact protection is only
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beq runhello_exit ; on DOS 3.3 disks (other patchers
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lda gIsPascal ; will catch other variations)
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beq runhello_exit
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lda #$0F
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sta rhsector+1
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rhsector lda #$FF ; modified at runtime
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ldx #$04
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ldy #$05
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jsr compare
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!byte $20,$E3,03,$85,$FB
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bcc +
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jmp rhnextsector
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+
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lda rhsector+1
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ldx #$19
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ldy #$06
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jsr compare
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!byte $CA,$10,$F8,$8A,$48,$20
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bcc +
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jmp rhnextsector
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+
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lda rhsector+1
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ldx #$21
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ldy #$06
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jsr compare
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!byte $A0,01,$B1,$FA,$AA,$20
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bcc +
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jmp rhnextsector
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+
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lda rhsector+1
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sta gDisplayBytes
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lda #s_runhello
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jsr PrintByID
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lda rhsector+1
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ldx #$26
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ldy #$01
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jsr modify
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!byte $2C
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rhnextsector
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dec rhsector+1
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bmi runhello_exit
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jmp rhsector
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runhello_exit
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