mirror of
https://github.com/a2-4am/4cade.git
synced 2024-11-05 18:06:52 +00:00
78 lines
1.5 KiB
Plaintext
78 lines
1.5 KiB
Plaintext
|
;license:MIT
|
||
|
;(c) 2021 by Frank M.
|
||
|
|
||
|
!cpu 6502
|
||
|
!to "res/DEMO/BEER.RUN",plain
|
||
|
*=$300
|
||
|
|
||
|
!source "src/constants.a" ; no code in these
|
||
|
!source "src/macros.a"
|
||
|
|
||
|
+READ_RAM2_WRITE_RAM2
|
||
|
jsr EnableAccelerator
|
||
|
|
||
|
;+LOAD_FILE_KEEP_DIR
|
||
|
ldx #0 ; read to main memory
|
||
|
stx ldrhi
|
||
|
stx ldrlo
|
||
|
+LDADDR title
|
||
|
jsr iLoadFileDirect
|
||
|
|
||
|
ldx #11-1 ; we also need to copy the length byte
|
||
|
- lda newpath,x
|
||
|
sta $BFD0,x
|
||
|
dex
|
||
|
bpl -
|
||
|
|
||
|
lda #$60
|
||
|
sta $2065
|
||
|
jsr $2000 ; decompress1
|
||
|
|
||
|
lda #$60
|
||
|
sta $BB2C
|
||
|
jsr $BB00 ; decompress2
|
||
|
|
||
|
lda #$4C
|
||
|
sta $419C
|
||
|
sta $6C62
|
||
|
sta $4085
|
||
|
sta $4088
|
||
|
lda #0
|
||
|
sta $419C+1
|
||
|
sta $6C62+1
|
||
|
sta $4085+1
|
||
|
lda #1
|
||
|
sta $419C+2
|
||
|
sta $6C62+2
|
||
|
sta $4085+2 ; set exits
|
||
|
|
||
|
lda #<(count+1)
|
||
|
sta $4088+1
|
||
|
lda #>(count+1)
|
||
|
sta $4088+2 ; decrement custom counter after demo cycle and eventually exit
|
||
|
|
||
|
lda #$D0
|
||
|
sta $67D1 ; disable sound
|
||
|
|
||
|
+DISABLE_ACCEL
|
||
|
|
||
|
jmp $4000
|
||
|
|
||
|
count !byte $03
|
||
|
dec count
|
||
|
bpl +
|
||
|
jmp $100
|
||
|
+ jmp $40C8
|
||
|
|
||
|
newpath
|
||
|
!byte 10
|
||
|
!text "X/BEER.RUN"
|
||
|
|
||
|
title !byte x_e-x_b
|
||
|
x_b !text "X/BEER.RUN/BEER.RUN"
|
||
|
x_e
|
||
|
|
||
|
!if * > $3F0 {
|
||
|
!error "code is too large, ends at ", *
|
||
|
}
|