mirror of https://github.com/a2-4am/4cade.git
66 lines
1.2 KiB
Plaintext
66 lines
1.2 KiB
Plaintext
;license:MIT
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;(c) 2021-2022 by qkumba
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!cpu 6502
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!to "build/PRELAUNCH.INDEXED/BEACH.LANDING",plain
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*=$106
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!source "src/prelaunch/common.a"
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jmp skip
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callback
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jsr $BD00
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lda $7F
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cmp #$1D
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bne +
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ldx #$1B
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ldy $80
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cpy #8
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beq reset
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cpy #$0B
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bne +
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ldx #8
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ldy #$80
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reset
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sty vector1+2
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sty vector2+2
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sty vector3+2
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lda #0
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vector1 sta $D100,x ; SMC
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rol
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vector2 sta $D105,x ; SMC
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lda #$A4
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vector3 sta $D10A,x ; SMC
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+ clc
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rts
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skip
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+ENABLE_ACCEL
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lda #$60
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sta $9E3
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jsr $800 ; load "DOS"
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lda #<callback
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sta $B7B8
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lda #>callback
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sta $B7B9
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lda #<callback2
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sta $B733
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lda #>callback2
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sta $B734
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+DISABLE_ACCEL
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jmp $B700
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callback2
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+GET_MACHINE_STATUS
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and #CHEATS_ENABLED
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beq +
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lda #$a5
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sta $995 ; patch - don't decrease lives
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+
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jmp $800
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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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