mirror of https://github.com/a2-4am/4cade.git
57 lines
1.1 KiB
Plaintext
57 lines
1.1 KiB
Plaintext
;license:MIT
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;(c) 2020, 2022, 2024 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/GENIUS.2",plain
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*=$106
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!source "src/prelaunch/common.a"
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lda #$60
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sta $336
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jsr $300
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+ENABLE_ACCEL
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lda #$60
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sta $9CD
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jsr $800 ; decompress
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+GET_MACHINE_STATUS
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and #CHEATS_ENABLED
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pha
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lda #$60
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sta $95E2
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lda #<callback1
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sta $9684
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lda #>callback1
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sta $9685
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jsr $9592
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pla
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beq +
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dec $1A89 ; patch - don't decrease lives
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dec $1ABC ; patch - don't increase lives
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+
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+LC_REBOOT
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+DISABLE_ACCEL
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inc $9d ; game relies on it
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jmp $95E5
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callback1
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lda #$4C
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sta $D7D5
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lda #<callback2
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sta $D7D6
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lda #>callback2
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sta $D7D7
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jmp $D7C2
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callback2
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sec
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sbc #7
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cmp #2
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bcc +
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jmp $D7E2
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+ jmp $D7D9
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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}
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