mirror of https://github.com/a2-4am/4cade.git
88 lines
2.0 KiB
Plaintext
88 lines
2.0 KiB
Plaintext
;license:MIT
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;(c) 2022 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH/CG.CHEAT",plain
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*=$300
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!source "src/constants.a" ; no code in these
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!source "src/macros.a"
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+READ_RAM2_NO_WRITE
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jsr DisableAccelerator
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lda MachineStatus
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and #CHEATS_ENABLED
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php
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+READ_ROM_NO_WRITE
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lda #$60
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sta $9E4
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jsr $800 ; decompress
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+LC_REBOOT
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plp
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beq +
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lda #$AD
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sta $1CFA ; patch - don't decrease time
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lda #<callback
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sta $D02D
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lda #>callback
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sta $D02E
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+
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jmp $6300
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callback
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pla
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pla
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jsr $D032
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jsr $D02F
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lda $D141
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cmp #'A'
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beq hook_A
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cmp #'B'
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beq hook_B
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cmp #'C'
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beq hook_C
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cmp #'D'
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beq hook_D
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cmp #'E'
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beq hook_E
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cmp #'F'
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bne no_hook
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dec $765E ; patch - don't decrease time
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dec $7751 ; patch - don't decrease time
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dec $8A89 ; patch - don't decrease time
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beq no_hook ; always
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hook_E
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dec $6D12 ; patch - don't decrease time
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dec $8B7D ; patch - don't decrease time
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dec $8EA1 ; patch - don't decrease time
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beq no_hook ; always
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hook_D
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lda #0
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sta $768A ; patch - don't decrease time
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sta $867B ; patch - don't decrease time
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sta $9098 ; patch - don't decrease time
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beq no_hook ; always
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hook_C
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dec $6E93 ; patch - don't decrease time
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dec $8C7A ; patch - don't decrease time
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beq no_hook ; always
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hook_B
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dec $798E ; patch - don't decrease time
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beq no_hook ; always
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hook_A
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dec $6DCD ; patch - don't decrease time
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no_hook
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rts
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!if * > $3F0 {
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!error "code is too large, ends at ", *
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}
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