mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-27 02:31:00 +00:00
megademo: initial starring intro
This commit is contained in:
Vince Weaver
parent
dc4adbdd1a
commit
32b216a7c0
@ -3,7 +3,7 @@ include ../Makefile.inc
|
||||
DOS33 = ../dos33fs-utils/dos33
|
||||
B2D = ../bmp2dhr/b2d
|
||||
PNG_TO_40x96 = ../gr-utils/png_to_40x96
|
||||
|
||||
PNG_TO_RLE = ../gr-utils/png2rle
|
||||
|
||||
all: megademo.dsk
|
||||
|
||||
@ -26,6 +26,7 @@ megademo.o: megademo.s \
|
||||
gr_hline.s gr_offsets.s vapor_lock.s delay_a.s wait_keypress.s \
|
||||
c64_opener.s c64.img.lz4 \
|
||||
falling_apple.s apple_40_96.inc \
|
||||
starring.s starring1.inc starring2.inc \
|
||||
check_email.s email_40_96.inc \
|
||||
bird_mountain.s \
|
||||
fireworks.s fw_background.inc fw_state_machine.s fw.s \
|
||||
@ -43,6 +44,17 @@ apple_40_96.inc: ./images/apple_40_96.png
|
||||
email_40_96.inc: ./email_40_96.png
|
||||
$(PNG_TO_40x96) asm ./email_40_96.png email > email_40_96.inc
|
||||
|
||||
####
|
||||
|
||||
starring1.inc: ./starring_1.png
|
||||
$(PNG_TO_RLE) asm ./starring_1.png starring1 > starring1.inc
|
||||
|
||||
starring2.inc: ./starring_2.png
|
||||
$(PNG_TO_RLE) asm ./starring_2.png starring2 > starring2.inc
|
||||
|
||||
|
||||
|
||||
|
||||
####
|
||||
|
||||
c64.img.lz4: c64.img
|
||||
|
||||
@ -25,6 +25,8 @@ apple_iie:
|
||||
;===================
|
||||
jsr HOME
|
||||
|
||||
jsr starring
|
||||
|
||||
; C64 Opening Sequence
|
||||
|
||||
jsr c64_opener
|
||||
@ -34,6 +36,7 @@ apple_iie:
|
||||
jsr falling_apple
|
||||
|
||||
; Starring Screens
|
||||
jsr starring
|
||||
|
||||
; E-mail arriving
|
||||
jsr check_email
|
||||
@ -71,6 +74,7 @@ loop_forever:
|
||||
.include "lz4_decode.s"
|
||||
.include "c64_opener.s"
|
||||
.include "falling_apple.s"
|
||||
.include "starring.s"
|
||||
.include "check_email.s"
|
||||
.align $100
|
||||
.include "gr_offsets.s"
|
||||
|
||||
216
megademo/starring.s
Normal file
216
megademo/starring.s
Normal file
@ -0,0 +1,216 @@
|
||||
; Display Starring Message
|
||||
|
||||
; 1st screen = triple page flip
|
||||
; 2nd/3rd = split low/hires
|
||||
|
||||
|
||||
starring:
|
||||
|
||||
;===================
|
||||
; init screen
|
||||
jsr TEXT
|
||||
jsr HOME
|
||||
bit KEYRESET
|
||||
|
||||
;===================
|
||||
; init vars
|
||||
|
||||
lda #0
|
||||
sta DRAW_PAGE
|
||||
|
||||
;=============================
|
||||
; Load graphic page0
|
||||
|
||||
lda #$0c
|
||||
sta BASH
|
||||
lda #$00
|
||||
sta BASL ; load image to $c00
|
||||
|
||||
|
||||
lda #<starring1
|
||||
sta GBASL
|
||||
lda #>starring1
|
||||
sta GBASH
|
||||
jsr load_rle_gr
|
||||
|
||||
lda #4
|
||||
sta DRAW_PAGE
|
||||
|
||||
jsr gr_copy_to_current ; copy to page1
|
||||
|
||||
; GR part
|
||||
bit PAGE1
|
||||
bit LORES ; 4
|
||||
bit SET_GR ; 4
|
||||
bit FULLGR ; 4
|
||||
|
||||
;=============================
|
||||
; Load graphic page1
|
||||
|
||||
lda #$0c
|
||||
sta BASH
|
||||
lda #$00
|
||||
sta BASL ; load image to $c00
|
||||
|
||||
lda #<starring2
|
||||
sta GBASL
|
||||
lda #>starring2
|
||||
sta GBASH
|
||||
jsr load_rle_gr
|
||||
|
||||
lda #0
|
||||
sta DRAW_PAGE
|
||||
|
||||
jsr gr_copy_to_current
|
||||
|
||||
; GR part
|
||||
bit PAGE0
|
||||
|
||||
|
||||
;==============================
|
||||
; setup graphics for vapor lock
|
||||
;==============================
|
||||
|
||||
jsr vapor_lock ; 6
|
||||
|
||||
; vapor lock returns with us at beginning of hsync in line
|
||||
; 114 (7410 cycles), so with 5070 lines to go
|
||||
|
||||
jsr gr_copy_to_current ; 6+ 9292
|
||||
|
||||
; now we have 322 left
|
||||
|
||||
; GR part
|
||||
bit LORES ; 4
|
||||
bit SET_GR ; 4
|
||||
bit FULLGR ; 4
|
||||
|
||||
; 322 - 12 = 310
|
||||
; - 3 for jmp
|
||||
; 307
|
||||
|
||||
; Try X=9 Y=6 cycles=307
|
||||
|
||||
ldy #6 ; 2
|
||||
stloopA:ldx #9 ; 2
|
||||
stloopB:dex ; 2
|
||||
bne stloopB ; 2nt/3
|
||||
dey ; 2
|
||||
bne stloopA ; 2nt/3
|
||||
|
||||
jmp st_begin_loop
|
||||
.align $100
|
||||
|
||||
|
||||
;================================================
|
||||
; Starring Loop
|
||||
;================================================
|
||||
; each scan line 65 cycles
|
||||
; 1 cycle each byte (40cycles) + 25 for horizontal
|
||||
; Total of 12480 cycles to draw screen
|
||||
; Vertical blank = 4550 cycles (70 scan lines)
|
||||
; Total of 17030 cycles to get back to where was
|
||||
|
||||
; G00000000000000000000 H0000000000000000000000
|
||||
|
||||
|
||||
st_begin_loop:
|
||||
|
||||
st_display_loop:
|
||||
|
||||
ldy #24
|
||||
st_outer_loop:
|
||||
|
||||
;== line0
|
||||
bit PAGE0 ; 4
|
||||
lda #$54 ; 2
|
||||
sta draw_line_p1+1 ; 4
|
||||
jsr draw_line_1 ; 6
|
||||
;== line1
|
||||
bit PAGE0 ; 4
|
||||
lda #$54 ; 2
|
||||
sta draw_line_p1+1 ; 4
|
||||
jsr draw_line_1 ; 6
|
||||
;== line2
|
||||
bit PAGE0 ; 4
|
||||
lda #$55 ; 2
|
||||
sta draw_line_p1+1 ; 4
|
||||
jsr draw_line_1 ; 6
|
||||
;== line3
|
||||
bit PAGE1 ;IIe ; 4
|
||||
; bit PAGE0 ;II/II+ ; 4
|
||||
|
||||
lda #$55 ; 2
|
||||
sta draw_line_p1+1 ; 4
|
||||
jsr draw_line_1 ; 6
|
||||
|
||||
;== line4
|
||||
bit PAGE1 ; 4
|
||||
lda #$54 ; 2
|
||||
sta draw_line_p1+1 ; 4
|
||||
jsr draw_line_1 ; 6
|
||||
;== line5
|
||||
bit PAGE1 ; 4
|
||||
lda #$54 ; 2
|
||||
sta draw_line_p1+1 ; 4
|
||||
jsr draw_line_1 ; 6
|
||||
;== line6
|
||||
bit PAGE1 ; 4
|
||||
lda #$55 ; 2
|
||||
sta draw_line_p1+1 ; 4
|
||||
jsr draw_line_1 ; 6
|
||||
|
||||
;== line7
|
||||
bit PAGE1 ; 4
|
||||
lda #$55 ; 2
|
||||
sta draw_line_p2+1 ; 4
|
||||
jsr draw_line_2 ; 6
|
||||
|
||||
|
||||
dey ; 2
|
||||
bne st_outer_loop ; 3
|
||||
; -1
|
||||
|
||||
|
||||
;======================================================
|
||||
; We have 4550 cycles in the vblank, use them wisely
|
||||
;======================================================
|
||||
|
||||
; do_nothing should be 4550
|
||||
; +1 fallthrough from above
|
||||
; -10 keypress
|
||||
; -2 ldy at top
|
||||
; -132 move letters
|
||||
; ===========
|
||||
; 4407
|
||||
|
||||
; Try X=13 Y=62 cycles=4403 R4
|
||||
|
||||
nop ; 2
|
||||
nop
|
||||
|
||||
ldy #62 ; 2
|
||||
stloop1:ldx #13 ; 2
|
||||
stloop2:dex ; 2
|
||||
bne stloop2 ; 2nt/3
|
||||
dey ; 2
|
||||
bne stloop1 ; 2nt/3
|
||||
|
||||
lda KEYPRESS ; 4
|
||||
bpl st_no_keypress ; 3
|
||||
jmp st_start_over
|
||||
st_no_keypress:
|
||||
|
||||
jmp st_display_loop ; 3
|
||||
|
||||
st_start_over:
|
||||
bit KEYRESET ; clear keypress ; 4
|
||||
rts ; 6
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
.include "starring1.inc"
|
||||
.include "starring2.inc"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user