mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-06-05 09:29:32 +00:00
219 lines
3.4 KiB
ArmAsm
219 lines
3.4 KiB
ArmAsm
;======================
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; scroll credits
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;======================
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end_credits:
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lda KEYRESET
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bit SET_TEXT ; switch to text mode
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; clear to space
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lda #$a0
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sta clear_all_color+1
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; X is starting YPOS to print at
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ldx #48
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stx YPOS
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scroll_loop:
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jsr clear_all ; trashes A,Y
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ldy #0 ; credit offset
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ldx YPOS
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print_loop:
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cpx #48
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bcs after_print
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cpy #48
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bcs after_print
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; write next line
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;============================
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; set BASL/BASH to offset w Y
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lda gr_offsets,X
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sta BASL
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lda gr_offsets+1,X
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clc
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adc DRAW_PAGE
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sta BASH
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; get credit line
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lda credit_list,Y
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sta OUTL
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lda credit_list+1,Y
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sta OUTH
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tya
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pha
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;============================
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; print the string
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jsr print_string ; trashes Y
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pla
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tay
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after_print:
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inx
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inx
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iny
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iny
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cpx #48 ; if off screen, don't print
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bne print_loop
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;====================
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; done printing
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jsr page_flip ; flip page
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;====================
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; delay a bit
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;====================
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; 400ms normally
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; if credits on screen, wait much longer
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ldx YPOS
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cpx #0
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beq credits_long_pause
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credits_short_pause:
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ldx #40 ; time to sleep (X*10ms)
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jsr long_wait ; trashes A,X
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jmp credits_done_pause
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credits_long_pause:
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; actual games pauses 10s, then scrolls again
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; delay 6s?
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ldx #200
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jsr long_wait
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ldx #200
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jsr long_wait
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ldx #200
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jsr long_wait
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credits_done_pause:
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bit KEYRESET
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;===================
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; scroll
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dec YPOS
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dec YPOS
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lda YPOS
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cmp #256-48 ; scroll until all off screen
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bne scroll_loop
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;============================================
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; actual games pauses 10s, then scrolls again
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;============================================
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; delay 6s?
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; ldx #200
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; jsr long_wait
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; ldx #200
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; jsr long_wait
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; ldx #200
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; jsr long_wait
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; jsr HOME
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bit KEYRESET
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;======================
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; print final message
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;======================
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jsr clear_all
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lda #<end_message
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sta OUTL
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lda #>end_message
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sta OUTH
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jsr move_and_print
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jsr page_flip
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rts
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; 0123456789012345678901234567890123456789
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; DESIGNED BY ..... ERIC CHAHI
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;
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; ARTWORK ......... ERIC CHAHI
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;
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; MUSIC BY ........ JEAN-FRANCOIS FREITAS
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;
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; SOUND EFFECTS
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; JEAN-FRANCOIS FREITAS
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; ERIC CHAHI
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;
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; APPLE II PORT
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; VINCE WEAVER
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;
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; APPLE ][ FOREVER
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credits0:.byte "",0
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credits1:.byte " DESIGNED BY ..... ERIC CHAHI",0
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;credits2:.byte "",0
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credits3:.byte " ARTWORK ......... ERIC CHAHI",0
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;credits4:.byte "",0
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credits5:.byte " MUSIC BY ........ JEAN-FRANCOIS FREITAS",0
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;credits6:.byte "",0
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credits7:.byte " SOUND EFFECTS",0
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credits8:.byte " JEAN-FRANCOIS FREITAS",0
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credits9:.byte " ERIC CHAHI",0
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;credits10:.byte "",0
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credits11:.byte " APPLE II+ PORT",0
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credits12:.byte " VINCE 'DEATER' WEAVER",0
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;credits13:.byte "",0
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credits14:.byte " APPLE ][ FOREVER",0
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credit_list:
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.word credits0 ; 0
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.word credits0 ; 1
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.word credits0 ; 2
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.word credits1 ; 3
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.word credits0 ; 4
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.word credits3 ; 5
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.word credits0 ; 6
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.word credits5 ; 7
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.word credits0 ; 8
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.word credits0 ; 9
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.word credits7 ; 10
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.word credits8 ; 11
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.word credits9 ; 12
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.word credits0 ; 13
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.word credits11 ; 14
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.word credits12 ; 16
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.word credits0 ; 15
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.word credits0 ; 18
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.word credits0 ; 17
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.word credits14 ; 19
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.word credits0 ; 20
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.word credits0 ; 21
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.word credits0 ; 22
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.word credits0 ; 23
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end_message:
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.byte 6,10,"NOW GO BACK TO ANOTHER EARTH",0
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