mirror of https://github.com/a2-4am/4cade.git
50 lines
1.0 KiB
Plaintext
50 lines
1.0 KiB
Plaintext
;license:MIT
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;(c) 2019-2020, 2022 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/PAPERBOY",plain
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*=$106
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!source "src/prelaunch/common.a"
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+READ_RAM2_NO_WRITE
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jsr EnableAccelerator
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lda MachineStatus
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and #CHEATS_ENABLED
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sta callback_b+(cheat_smc-callback)+1
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+READ_ROM_NO_WRITE
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lda #$60
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sta $8E1
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inc $bf0e ; disable ROM mapping
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jsr $800
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lda #$20
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sta $8E1
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jsr DisableAccelerator
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lda #<callback
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sta $20F
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lda #>callback
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sta $210
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ldx #callback_e-callback_b
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- lda callback_b,x
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sta callback,x
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dex
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bpl -
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jmp $8E1
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callback_b !pseudopc $BF80 {
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callback
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sta $20F
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lda #$60
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sta $210
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cheat_smc
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lda #0
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beq +
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lda #$ad
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sta $8277 ; patch - don't decrease lives
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+ jmp $6000
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}
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callback_e
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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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