4cade/src/demo/alien.typhoon.a
frankmilliron dc8eb20969
convert Aquatron & Alien Typhoon demos to prelaunch style (#396)
* Add files via upload

* Add files via upload

* Delete AQUATRON.1

* Delete _FileInformation.txt

* Add files via upload
2021-10-24 00:44:11 -04:00

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 ", *
}