4cade/src/demo/alien.ambush.a

35 lines
704 B
Plaintext

;license:MIT
;(c) 2022 by qkumba
!cpu 6502
!to "build/DEMO/ALIEN.AMBUSH#060300",plain
*=$300
!source "src/constants.a" ; no code in these
!source "src/macros.a"
+ENABLE_ACCEL_LC
+LOAD_XSINGLE title
+NEW_RESET_VECTOR $3E0 ; overwrites $101 at end of demo cycle
lda #$60
sta $81c
jsr $800 ; decompress
ldx #3-1
- lda patch,x
sta $60CA,x
sta $6040,x
dex
bpl -
+DISABLE_ACCEL
jmp $4000
patch !byte $4C,$E0,$03
title !byte x_e-x_b
x_b !text "ALIEN.AMBUSH"
x_e
!if * > $3F0 {
!error "code is too large, ends at ", *
}