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https://github.com/deater/dos33fsprogs.git
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megademo: fix vapor lock!!!!!
also have unrelated credits change
This commit is contained in:
Vince Weaver
parent
993e72409a
commit
0588697acb
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@ -34,6 +34,7 @@
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30633 -- with all the music added in
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31323 -- finish takeoff
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31607 -- space-bars auto-driving
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32038 -- align letters, few extra thanks
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Further ideas to reduce:
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+ Optimize all the .align calls
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@ -1,7 +1,5 @@
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TODO TODO:
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+ Get timing right
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+ Fix qkumbas seek code
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+ Fix one-line glitch
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+ Add play_music call in slow vapor_lock code?
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THANKS:
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@ -10,13 +8,12 @@ THANKS:
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* Fireworks: FOZZTEX
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* DISK+LZ4: QKUMBA
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* BMP2DHR: BILL BUCKELS
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VOYAGER
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TALBOT 0101B
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* VOYAGER 2
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* TALBOT 0101B
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* UTOPIA BBS
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* VMW PRODUCTION
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Overall:
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fix off-by-one line vaporlock
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Trim the last 8 bytes off of all the lz4 files
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Music:
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@ -1,28 +1,7 @@
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; The various strings printed by the sliding letters code
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; Kept in one place to try to allow for better alignment opportunities
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letters_bm:
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;.byte 1,12
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.byte "CYCLE",128
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.byte 2,16,"COUNTING",128
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; .byte 3,12,"M E G A D E M O",150
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.byte 3,16,"MEGADEMO",150
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.byte 1,16," ",128
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.byte 2,16," ",128
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.byte 3,16," ",128
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.byte 1,19,"BY",128
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.byte 3,17,"DEATER",150
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.byte 1,19," ",128
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.byte 3,17," ",128
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.byte 1,17,"MUSIC",128
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.byte 3,17,"DASCON",150
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.byte 1,17," ",128
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.byte 3,17," ",128
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.byte 1,16,"LZ4+DISK",128
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.byte 3,17,"QKUMBA",150
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.byte 1,16," ",128
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.byte 3,17," "
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.byte 255
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.align $100
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fw_letters:
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; .byte 22,28,
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@ -56,6 +35,12 @@ fw_letters:
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.byte 23,26, " ",128
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.byte 23+128,26," ",128
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.byte 22,26, "VOYAGER 2",128
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.byte 22+128,26,"VOYAGER 2",198
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.byte 22,26, " ",128
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.byte 22+128,26," ",128
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.byte 22,26, "UTOPIA",128
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.byte 22+128,26,"UTOPIA",128
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@ -68,6 +53,19 @@ fw_letters:
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.byte 23,26, " ",128
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.byte 23+128,26," ",128
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.byte 22,26, "TALBOT",128
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.byte 22+128,26,"TALBOT",128
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.byte 23,26, "0101",128
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.byte 23+128,26,"0101",198
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.byte 22,26, " ",128
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.byte 22+128,26," ",128
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.byte 23,26, " ",128
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.byte 23+128,26," ",128
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.byte 22,26,"A VMW",128
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.byte 22+128,26,"A VMW",128
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@ -75,3 +73,28 @@ fw_letters:
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.byte 23+128,26,"PRODUCTION"
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.byte 255
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letters_bm:
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;.byte 1,12
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.byte "CYCLE",128
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.byte 2,16,"COUNTING",128
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; .byte 3,12,"M E G A D E M O",150
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.byte 3,16,"MEGADEMO",150
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.byte 1,16," ",128
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.byte 2,16," ",128
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.byte 3,16," ",128
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.byte 1,19,"BY",128
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.byte 3,17,"DEATER",150
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.byte 1,19," ",128
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.byte 3,17," ",128
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.byte 1,17,"MUSIC",128
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.byte 3,17,"DASCON",150
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.byte 1,17," ",128
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.byte 3,17," ",128
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.byte 1,16,"LZ4+DISK",128
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.byte 3,17,"QKUMBA",150
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.byte 1,16," ",128
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.byte 3,17," "
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.byte 255
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@ -67,7 +67,7 @@ space_bars:
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lda #8
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sta DRAW_PAGE
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lda #$44
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lda #$00
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jsr clear_gr
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@ -48,15 +48,15 @@ vapor_lock:
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lda #$dd
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ldy #40
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jsr clear_page_loop ; make top half grey2 $aa
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jsr clear_page_loop ; make bottom half yellow $dd
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lda #$aa
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ldy #24
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jsr clear_page_loop ; make top half grey2 $aa
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jsr clear_page_loop ; make middle grey2 $aa
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lda #$ee
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ldy #10
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jsr clear_page_loop ; make top half grey2 $aa
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jsr clear_page_loop ; make top half aqua $ee
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; set up a rainbow to aid in exact lock
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@ -149,6 +149,11 @@ qloop:
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; 6 17 28 39, clock at 40
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;btt:
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; jmp btt
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; In theory near end of line 104
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; now skip ahead 8 lines and read from the rainbow pattern we set
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@ -158,15 +163,32 @@ qloop:
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; we back off a few to make sure we're not in the horiz blank
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; try to delay 510
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lda #230 ; 2
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jsr delay_a ; delay 25+230 = 255
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; *NOTE* sometimes we end up going one (or rarely, two??) lines too far
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; so instead try going 7 lines ahead, and if still dd then one more
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lda #226 ; 2
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jsr delay_a ; delay 25+226 = 251
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; so single step until we get a rainbow color
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; go to next line, -10
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lda #28 ; 2
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jsr delay_a ; delay 25+28 = 53
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; total delay = 55
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vl_try_again:
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lda #29 ; 2
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jsr delay_a ; delay 25+29 = 54
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; total delay = 56
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lda $C051 ; 4
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cmp #$dd ; 2
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beq vl_try_again ; 3
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; -1
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; now near end of line 112
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;lda $0 ; nop to match old code ; 3
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; nop ; nop to match old code ; 2
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lda $C051 ; 4
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;kbb:
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@ -96,7 +96,7 @@ game:
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lda #8
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sta DRAW_PAGE
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lda #$44
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lda #$00
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jsr clear_gr
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