mirror of https://github.com/a2-4am/4cade.git
52 lines
999 B
Plaintext
52 lines
999 B
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/MM",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 $9C7
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jsr $800 ; find and load "DOS"
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iny
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sty $B719
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jsr $B700
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+READ_RAM2_NO_WRITE
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lda MachineStatus
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and #CHEATS_ENABLED
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beq +
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lda #<callback
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sta $BD07
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lda #>callback
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sta $BD08
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+
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $900
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callback
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pla
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pla
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jsr $BD44
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jsr $BD09
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lda $B790
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cmp #$12
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bne +
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lda $B791
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cmp #$0b
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bne +
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lda $BD13
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cmp #$20
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bne +
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lda #$a5
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sta $7CD6 ; patch - don't decrease endurance
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+ clc
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rts
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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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