mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-29 00:31:52 +00:00
97 lines
1.3 KiB
ArmAsm
97 lines
1.3 KiB
ArmAsm
; Duke PoC
|
|
|
|
; by deater (Vince Weaver) <vince@deater.net>
|
|
|
|
; Zero Page
|
|
.include "zp.inc"
|
|
.include "hardware.inc"
|
|
|
|
duke_start:
|
|
;===================
|
|
; init screen
|
|
jsr TEXT
|
|
jsr HOME
|
|
bit KEYRESET
|
|
|
|
bit SET_GR
|
|
bit PAGE0
|
|
bit LORES
|
|
bit TEXTGR
|
|
|
|
lda #0
|
|
sta ANIMATE_FRAME
|
|
sta FRAMEL
|
|
sta FRAMEH
|
|
sta DISP_PAGE
|
|
|
|
lda #4
|
|
sta DRAW_PAGE
|
|
|
|
|
|
|
|
;====================================
|
|
; load duke bg
|
|
;====================================
|
|
|
|
lda #<duke_lzsa
|
|
sta LZSA_SRC_LO
|
|
lda #>duke_lzsa
|
|
sta LZSA_SRC_HI
|
|
lda #$c ; load to page $c00
|
|
jsr decompress_lzsa2_fast
|
|
|
|
;====================================
|
|
;====================================
|
|
; Main LOGO loop
|
|
;====================================
|
|
;====================================
|
|
|
|
duke_loop:
|
|
|
|
; copy over background
|
|
|
|
jsr gr_copy_to_current
|
|
|
|
jsr draw_status_bar
|
|
|
|
jsr page_flip
|
|
|
|
|
|
|
|
; early escape if keypressed
|
|
lda KEYPRESS
|
|
bpl do_duke_loop
|
|
|
|
jmp done_with_duke
|
|
|
|
|
|
do_duke_loop:
|
|
|
|
; delay
|
|
lda #200
|
|
jsr WAIT
|
|
|
|
jmp duke_loop
|
|
|
|
|
|
done_with_duke:
|
|
bit KEYRESET ; clear keypress
|
|
|
|
jmp done_with_duke
|
|
|
|
;==========================
|
|
; includes
|
|
;==========================
|
|
|
|
; level graphics
|
|
.include "duke.inc"
|
|
|
|
.include "text_print.s"
|
|
.include "gr_offsets.s"
|
|
; .include "gr_fast_clear.s"
|
|
.include "gr_copy.s"
|
|
.include "gr_pageflip.s"
|
|
.include "decompress_fast_v2.s"
|
|
|
|
.include "status_bar.s"
|