mirror of https://github.com/a2-4am/4cade.git
63 lines
1.3 KiB
Plaintext
63 lines
1.3 KiB
Plaintext
;license:MIT
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;(c) 2020 by qkumba/Frank M.
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/G.I.JOE",plain
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*=$106
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!source "src/prelaunch/common.a"
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+ENABLE_ACCEL
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lda #$60
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sta $99f
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jsr $800 ; decompress
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+READ_RAM1_WRITE_RAM1
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lda MachineStatus
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and #CHEATS_ENABLED
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beq +
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lda #<callback1
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sta $D45C
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lda #<callback2
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sta $D5A2
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lda #>callback1
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sta $D45D
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sta $D5A3
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+
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lda #$2C ; vehicle level overwrites $100-102 explicitly
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sta $110
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lda #$89
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sta $111
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lda #$C0
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sta $112
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lda #$4C
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sta $113
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lda #$A6
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sta $114
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lda #$FA
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sta $115 ; update reset hook to reboot
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inc $3F4
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lda #1
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sta $FFFD
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lda #$10
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sta $FFFC ; LC reset vector fix
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+READ_RAM2_WRITE_RAM2
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jsr DisableAccelerator
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+READ_RAM1_WRITE_RAM1
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jmp $D400
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callback1
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lda #$AD
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sta $63FA ; patch - don't increase hits
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jmp $6000
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callback2
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lda #$AD
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sta $14B5 ; patch - don't decrease lives
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jmp $1100
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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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