mirror of
https://github.com/a2-4am/4cade.git
synced 2025-01-13 05:30:32 +00:00
58 lines
1.2 KiB
Plaintext
58 lines
1.2 KiB
Plaintext
|
;license:MIT
|
||
|
|
;(c) 2021 by Frank M.
|
||
|
|
|
||
|
|
!cpu 6502
|
||
|
|
!to "res/DEMO/ALIEN.TYPHOON",plain
|
||
|
|
*=$300
|
||
|
|
|
||
|
|
!source "src/constants.a" ; no code in these
|
||
|
|
!source "src/macros.a"
|
||
|
|
|
||
|
|
+READ_RAM2_WRITE_RAM2
|
||
|
|
jsr EnableAccelerator
|
||
|
|
+LOAD_FILE_AT alien_typhoon, $00 ; $4710
|
||
|
|
|
||
|
|
lda #$60
|
||
|
|
sta $472f
|
||
|
|
sta $4739
|
||
|
|
jsr $4710 ; decompress
|
||
|
|
;jsr $6000 ; run intro screen
|
||
|
|
jsr $806 ; decompress
|
||
|
|
|
||
|
|
lda #0
|
||
|
|
sta $2067
|
||
|
|
lda #1
|
||
|
|
sta $206C ; reset vector patch
|
||
|
|
|
||
|
|
lda #$60
|
||
|
|
sta $2075
|
||
|
|
jsr $2001 ; unpack
|
||
|
|
|
||
|
|
lda #$4C
|
||
|
|
sta $9D58
|
||
|
|
sta $8FD6
|
||
|
|
sta $8FEF
|
||
|
|
sta $92B1
|
||
|
|
lda #0
|
||
|
|
sta $9D58+1
|
||
|
|
sta $8FD6+1
|
||
|
|
sta $8FEF+1
|
||
|
|
sta $92B1+1
|
||
|
|
lda #1
|
||
|
|
sta $9D58+2
|
||
|
|
sta $8FD6+2
|
||
|
|
sta $8FEF+2
|
||
|
|
sta $92B1+2 ; set exits
|
||
|
|
|
||
|
|
jsr DisableAccelerator
|
||
|
|
+READ_ROM_NO_WRITE
|
||
|
|
jmp $8F98
|
||
|
|
|
||
|
|
alien_typhoon
|
||
|
|
!byte 29
|
||
|
|
!text "X/ALIEN.TYPHOON/ALIEN.TYPHOON"
|
||
|
|
|
||
|
|
!if * > $3F0 {
|
||
|
|
!error "code is too large, ends at ", *
|
||
|
|
}
|