dos33fsprogs/games/riven_hgr/movie1.s
2024-05-17 12:39:00 -04:00

99 lines
1.2 KiB
ArmAsm

; Lo-res movie player of sorts
; by deater (Vince Weaver) <vince@deater.net>
.include "zp.inc"
.include "hardware.inc"
movie1_start:
;===================
; Setup graphics
;===================
bit SET_GR
bit LORES
bit FULLGR
bit PAGE1
lda #0
sta DRAW_PAGE
bit KEYRESET
lda #<img025_bg_zx02
sta ZX0_src
lda #>img025_bg_zx02
sta ZX0_src+1
lda #$04 ; decompress page1 (dangerous? holes?)
jsr full_decomp
.if 0
lda #num_scenes
sta SCENE_COUNT
lda #<frame15
sta INL
lda #>frame15
sta INH
.endif
.if 0
scene_loop:
jsr draw_scene
;============================
; flip pages
;============================
lda DRAW_PAGE ; 3
beq was_page1 ; 2/3
was_page2:
bit PAGE2 ; 4
lda #$0 ; 2
beq done_pageflip ; 2/3
was_page1:
bit PAGE1 ; 4
lda #$4 ; 2
done_pageflip:
sta DRAW_PAGE ; 3
lda #12
sta IRQ_COUNTDOWN
wait_for_irq:
lda IRQ_COUNTDOWN
bne wait_for_irq
lda KEYPRESS
bmi done_threed
dec SCENE_COUNT
bne scene_loop
.endif
done_movie1:
bit KEYRESET
jmp done_movie1
rts
;===================================
; .include "../wait_keypress.s"
; .include "draw_boxes.s"
.include "movie1/movie1.inc"
.include "zx02_optim.s"