dos33fsprogs/mode7_demo/mode7_demo.s

267 lines
4.4 KiB
ArmAsm
Raw Normal View History

.include "zp.inc"
square1_lo EQU $1000
square1_hi EQU $1200
square2_lo EQU $1400
square2_hi EQU $1600
scroll_row1 EQU $1800
scroll_row2 EQU $1900
scroll_row3 EQU $1a00
scroll_row4 EQU $1b00
; matches scroll_row1 - row3
star_x EQU $1800
star_y EQU $1900
star_z EQU $1a00
2018-03-05 03:55:38 +00:00
start:
2018-03-02 00:52:11 +00:00
;================================
2018-03-05 03:55:38 +00:00
; include VMW logo line 0
2018-03-02 00:52:11 +00:00
;================================
2018-03-05 03:55:38 +00:00
;.byte $AA,$AD,$D5,$AC,$95
tax ; $aa
lda $ACD5 ; $ad,$d5,$ac
sta $0,X ; $95,$00
2018-03-02 00:52:11 +00:00
;================================
; Mockingboard detect
;================================
jsr mockingboard_detect_slot4 ; call detection routine
stx MB_DETECTED
;================================
; Clear screen and setup graphics
;================================
jsr set_gr_page0
2017-12-18 03:03:20 +00:00
lda #$4
sta DRAW_PAGE
; Initialize the 2kB of multiply lookup tables
jsr init_multiply_tables
;================================
; Main Loop
;================================
main_loop:
2018-01-31 16:37:41 +00:00
jsr title_routine
2018-01-31 16:37:41 +00:00
jsr checkerboard_demo
jsr island_demo
jsr star_demo
jsr star_credits
jmp main_loop
;===========================
; Checkerboard Demo
;===========================
checkerboard_demo:
; initialize
lda #>sky_background
sta INH
lda #<sky_background
sta INL
2018-01-28 04:28:17 +00:00
jsr decompress_scroll ; load sky background
2018-01-28 04:28:17 +00:00
lda #0 ; no draw blue sky
sta DRAW_BLUE_SKY
2018-01-28 04:28:17 +00:00
lda #$20 ; setup self-modifying code
sta nomatch ; to use checkerboard map
lda #<lookup_checkerboard_map
sta nomatch+1
lda #>lookup_checkerboard_map
sta nomatch+2
lda #$4c
sta nomatch+3
lda #<match
sta nomatch+4
lda #>match
sta nomatch+5
lda #<checkerboard_flying_directions
sta direction_smc_1+1
sta direction_smc_2+1
lda #>checkerboard_flying_directions
sta direction_smc_1+2
sta direction_smc_2+2
2018-01-28 04:28:17 +00:00
jsr mode7_flying ; call generic mode7 code
rts
;===========================
; Island Demo
;===========================
island_demo:
; initialize
lda #1
sta DRAW_BLUE_SKY
lda #$A5 ; fix the code that was self-modified
sta nomatch ; away in checkerboard code
lda #$6A
sta nomatch+1
lda #$8D
sta nomatch+2
lda #<(spacex_label+1)
sta nomatch+3
lda #>(spacex_label+1)
sta nomatch+4
lda #$29
sta nomatch+5
lda #<island_flying_directions
sta direction_smc_1+1
sta direction_smc_2+1
lda #>island_flying_directions
sta direction_smc_1+2
sta direction_smc_2+2
jsr mode7_flying
rts
;===========================
; Star Demo
;===========================
star_demo:
; initialize
lda #48
sta y_limit_smc+1
2018-01-08 05:50:18 +00:00
jsr starfield_demo
rts
;===========================
; Star Credits
;===========================
star_credits:
; initialize
lda #40
sta y_limit_smc+1
jsr starfield_credits
rts
;===========================
; Title routine
;===========================
title_routine:
bit FULLGR
jsr clear_screens_notext ; clear top/bottom of page 0/1
lda #<demo_rle
sta GBASL
lda #>demo_rle
sta GBASH
; Load offscreen
lda #<$c00
sta BASL
lda #>$c00
sta BASH
jsr load_rle_gr
2017-12-18 04:06:49 +00:00
;==========
; Fade in
;==========
jsr fade_in
2017-12-18 04:06:49 +00:00
;==========================================
; Make sure page0 and page1 show same image
;==========================================
jsr gr_copy_to_current
;===================
; Scroll the message
;===================
; Scroll "BY DEATER... A VMW PRODUCTION"
lda #>deater_scroll
sta INH
lda #<deater_scroll
sta INL
lda #40 ; scroll at bottom of screen
sta CV
jsr gr_scroll
; Scroll "* APPLE ][ FOREVER *"
lda #>a2_scroll
sta INH
lda #<a2_scroll
sta INL
jsr gr_scroll
2017-12-18 04:06:49 +00:00
;=============
; Fade out
;=============
jsr fade_out
rts
;===============================================
; External modules
;===============================================
.include "../asm_routines/gr_unrle.s"
2017-12-31 20:22:38 +00:00
.include "../asm_routines/gr_fast_clear.s"
.include "../asm_routines/gr_hlin.s"
.include "../asm_routines/gr_setpage.s"
2017-12-18 03:03:20 +00:00
.include "../asm_routines/pageflip.s"
2017-12-18 03:35:21 +00:00
.include "../asm_routines/gr_fade.s"
2017-12-18 04:06:49 +00:00
.include "../asm_routines/gr_copy.s"
2017-12-18 05:40:13 +00:00
.include "../asm_routines/gr_scroll.s"
2017-12-31 20:22:38 +00:00
.include "../asm_routines/gr_offsets.s"
2018-01-08 05:50:18 +00:00
.include "../asm_routines/gr_plot.s"
.include "../asm_routines/text_print.s"
2018-03-02 00:52:11 +00:00
.include "../asm_routines/mockingboard_a.s"
.include "mode7.s"
.include "mode7_demo_backgrounds.inc"
2017-12-18 04:06:49 +00:00
;===============================================
2018-01-08 05:50:18 +00:00
; More routines
2017-12-18 04:06:49 +00:00
;===============================================
.include "deater.scrolltext"
.include "a2.scrolltext"
2018-01-08 05:50:18 +00:00
.include "starfield_demo.s"
2018-01-31 06:15:47 +00:00
.include "rasterbars.s"
.include "credits.s"
.align 256
.incbin "out.krg"