mirror of https://github.com/a2-4am/4cade.git
59 lines
1.2 KiB
Plaintext
59 lines
1.2 KiB
Plaintext
;license:MIT
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;(c) 2021-2022 by Frank M., qkumba
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!cpu 6502
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!to "build/DEMO/SPACE.EGGS#060300",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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+GAME_REQUIRES_JOYSTICK
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+ENABLE_ACCEL_LC
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+LOAD_XSINGLE title
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+NEW_RESET_VECTOR $280
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lda #$60
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sta $2056
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jsr $2000 ; decompress
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ldx #6-1
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lda #$EA
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- sta $4821,x ; avoid clobbering stack
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dex
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bpl -
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ldx #3-1
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- lda patch2,x
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sta $4B00,x ; change button press detection to keypress detection
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lda patch3,x
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sta $4B06,x ; exit on keypress
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dex
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bpl -
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ldx #11-1
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- lda patch, x
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sta $4BD6, x
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dex
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bpl - ; decrement custom counter after demo cycle and eventually exit
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lda #$02
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sta $4BFF ; initialize custom counter
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+DISABLE_ACCEL
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jmp $4880
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patch !byte $CE,$FF,$4B,$10,$03
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patch3 !byte $4C,$00,$01,$4C,$B0,$4B
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patch2 !byte $AD,$00,$C0
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title !byte x_e-x_b
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x_b !text "SPACE.EGGS"
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x_e
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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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