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59 lines
1.1 KiB
Plaintext
59 lines
1.1 KiB
Plaintext
;license:MIT
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;(c) 2020 by Tom Greene
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/DANGEROUS.DAVE",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 ; patch loader to return
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sta $20C6
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; auto-patch lowercase on II+
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+ lda ROM_MACHINEID
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cmp #$06
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beq +
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lda #<casefix
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sta $2390
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lda #>casefix
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sta $2391
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+ jsr $2000
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+GET_MACHINE_STATUS
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and #CHEATS_ENABLED
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beq +
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ldx #$2C
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stx $8A61 ; don't decrement lives
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+
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; the game calls the Applesoft RND function in ROM
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; so we need to copy the seed into ZP, otherwise it
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; will get stuck in an infinite loop
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ldx #$04
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- lda seed,x
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sta $C9,x
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dex
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bpl -
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+DISABLE_ACCEL
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jmp $20EC
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casefix
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cmp #$E1
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bcc +
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and #$DF
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+ jsr ROM_COUT
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rts
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seed
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!byte $80, $4F, $C7, $52, $FF
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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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