mirror of https://github.com/a2-4am/4cade.git
59 lines
1.1 KiB
Plaintext
59 lines
1.1 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.INDEXED/SPELLWIELDER",plain
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*=$106
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!source "src/prelaunch/common.a"
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+GET_MACHINE_STATUS
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and #CHEATS_ENABLED
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sta cheat+1
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lda #<callback1
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sta $77A2
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lda #>callback1
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sta $77A3
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jmp $6C00 ; decompress
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callback1
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lda #<callback2
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sta $2200
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lda #>callback2
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sta $2201
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lda #$A6
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sta $2204
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lda #$FA
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sta $2205 ; reset vector
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jmp $2000
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callback2
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lda #$A6
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sta $8778
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lda #$FA
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sta $877A ; reset vector
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cheat
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lda #0 ; SMC
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beq +
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lda #<callback3
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sta $ABD3
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lda #>callback3
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sta $ABD4
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sta $1812
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+
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jmp $BE00
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callback3
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ldx $1812
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dex
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bne +
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stx $1812
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stx $1ACB
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+
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jmp $8774
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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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