mirror of
https://github.com/a2-4am/4cade.git
synced 2024-06-13 12:29:37 +00:00
a141ad7b5a
* Add files via upload * Delete BATTLEZONE.1 * Delete BUZZARD.BAIT.1 * Delete CRIME.WAVE.1 * Delete GAMMA.GOBLINS.1 * Delete NIGHTMARE.1 * Delete ROBOTRON.1 * Delete SPACE.EGGS.1 * Add files via upload
52 lines
1016 B
Plaintext
52 lines
1016 B
Plaintext
;license:MIT
|
|
;(c) 2021 by Frank M.
|
|
|
|
!cpu 6502
|
|
!to "res/DEMO/ROBOTRON.2084",plain
|
|
*=$BF70
|
|
|
|
!source "src/constants.a" ; no code in these
|
|
!source "src/macros.a"
|
|
|
|
+READ_RAM2_WRITE_RAM2
|
|
jsr EnableAccelerator
|
|
+LOAD_FILE_AT title, $00
|
|
|
|
lda #<callback
|
|
sta $141D+1
|
|
lda #>callback
|
|
sta $141D+2
|
|
jmp $1400 ; decompress
|
|
|
|
callback +RESET_VECTOR $100
|
|
|
|
ldx #6-1
|
|
- lda patch, x
|
|
sta $4542, x
|
|
dex
|
|
bpl - ; exit on keypress
|
|
|
|
lda #$4C
|
|
sta $453A
|
|
lda #$42
|
|
sta $453A+1
|
|
lda #$45
|
|
sta $453A+2 ; exit at end of demo cycle
|
|
|
|
lda #$D0
|
|
sta $053B ; disable sound
|
|
|
|
+DISABLE_ACCEL
|
|
|
|
jmp $4015
|
|
|
|
patch !byte $AD,$88,$C0,$6C,$FC,$FF
|
|
|
|
title !byte x_e-x_b
|
|
x_b !text "X/ROBOTRON.2084/ROBOTRON.2084"
|
|
x_e
|
|
|
|
!if * > $BFFF {
|
|
!error "code is too large, ends at ", *
|
|
}
|