mirror of
https://github.com/a2-4am/4cade.git
synced 2024-09-27 12:57:21 +00:00
60 lines
1.2 KiB
Plaintext
60 lines
1.2 KiB
Plaintext
;license:MIT
|
|
;(c) 2021 by Frank M.
|
|
|
|
!cpu 6502
|
|
!to "res/DEMO/ALIEN.MUNCHIES",plain
|
|
*=$200
|
|
|
|
!source "src/constants.a" ; no code in these
|
|
!source "src/macros.a"
|
|
|
|
+ENABLE_ACCEL
|
|
+LOAD_XSINGLE title
|
|
|
|
lda #$60
|
|
sta $1638
|
|
jsr $1610 ; decompress
|
|
|
|
ldx #10-1
|
|
- lda patch1, x
|
|
sta $0F67, x
|
|
dex
|
|
bpl - ; exit on button or keypress during demo
|
|
|
|
ldx #2-1
|
|
- lda patch2, x
|
|
sta $092D, x
|
|
sta $139D, x
|
|
dex
|
|
bpl - ; exit on keypress at title screen & during demo
|
|
|
|
ldx #3-1
|
|
- lda patch1-3, x
|
|
sta $92F, x
|
|
sta $139F, x
|
|
sta $1392, x
|
|
sta $0B50, x
|
|
sta $0B4B, x
|
|
sta $1153, x
|
|
dex
|
|
bpl - ; set exits
|
|
|
|
lda #$D0
|
|
sta $1161 ; disable sound
|
|
|
|
+DISABLE_ACCEL
|
|
|
|
jmp $833
|
|
|
|
patch1 !byte $30,$05,$AD,$00,$C0,$10,$29,$4C,$00,$01
|
|
|
|
patch2 !byte $10,$0A
|
|
|
|
title !byte x_e-x_b
|
|
x_b !text "ALIEN.MUNCHIES"
|
|
x_e
|
|
|
|
!if * > $3F0 {
|
|
!error "code is too large, ends at ", *
|
|
}
|