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waterfall: use new vapor lock code
This commit is contained in:
Vince Weaver
parent
76da5568c6
commit
b43e50f7c1
@ -16,8 +16,8 @@ waterfall.dsk: WATERFALL
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WATERFALL: waterfall.o
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ld65 -o WATERFALL waterfall.o -C ../linker_scripts/apple2_1000.inc
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waterfall.o: waterfall.s gr_copy.s gr_unrolled_copy.s \
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put_sprite.s \
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waterfall.o: waterfall.s gr_copy.s gr_unrolled_copy.s vapor_lock.s \
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put_sprite.s delay_a.s \
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waterfall_page1.inc waterfall_page2.inc tfv_sprites.inc
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ca65 -o waterfall.o waterfall.s -l waterfall.lst
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25
waterfall/delay_a.s
Normal file
25
waterfall/delay_a.s
Normal file
@ -0,0 +1,25 @@
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; From http://6502org.wikidot.com/software-delay
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; 25+A cycles (including JSR), 19 bytes (excluding JSR)
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;
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; The branches must not cross page boundaries!
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;
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; Cycles Accumulator Carry flag
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; 0 1 2 3 4 5 6 (hex) 0 1 2 3 4 5 6
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; jsr delay_a ; 6 6 6 6 6 6 6 00 01 02 03 04 05 06
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dly0: sbc #7
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delay_a:cmp #7 ; 2 2 2 2 2 2 2 00 01 02 03 04 05 06 0 0 0 0 0 0 0
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bcs dly0 ; 2 2 2 2 2 2 2 00 01 02 03 04 05 06 0 0 0 0 0 0 0
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lsr ; 2 2 2 2 2 2 2 00 00 01 01 02 02 03 0 1 0 1 0 1 0
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bcs dly1 ; 2 3 2 3 2 3 2 00 00 01 01 02 02 03 0 1 0 1 0 1 0
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dly1: beq dly2 ; 3 3 2 2 2 2 2 00 00 01 01 02 02 03 0 1 0 1 0 1 0
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lsr ; 2 2 2 2 2 00 00 01 01 01 1 1 0 0 1
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beq dly3 ; 3 3 2 2 2 00 00 01 01 01 1 1 0 0 1
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bcc dly3 ; 3 3 2 01 01 01 0 0 1
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dly2: bne dly3 ; 2 2 3 00 00 01 0 1 0
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dly3: rts ; 6 6 6 6 6 6 6 00 00 00 00 01 01 01 0 1 1 1 0 0 1
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;
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; Total cycles: 25 26 27 28 29 30 31
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216
waterfall/vapor_lock.s
Normal file
216
waterfall/vapor_lock.s
Normal file
@ -0,0 +1,216 @@
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; This took a while to track down
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; On Apple II/II+ the horiz blanking addr are $1000 higher than on IIe
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; So on II+ were outside video area, so unlikely to be our set value
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; (unless I foolishly use $ff which some uninitialized mem is set to)
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; Lots of this color fiddling is to make sure you don't accidentally
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; get runs of colors on IIe due to the horiz blank
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; 0-5 aqua 6-12 = grey, 13 - 20 = yellow, 21-23 = aqua rainbow 14
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;
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;
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;16 0 YA
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;17 1 YA
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;18 2 YA
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;19 3 YA
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;20 4 YA
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;21 5 AA
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;22 6 AG
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;23 7 AG
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;0 8 AG
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;1 9 AG
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;2 10 AG
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;3 11 AG
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;4 12 AG
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;5 13 AY ****
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;6 14 GY RAINBOW
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;7 15 GY
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;8 16 GY
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;9 17 GY
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;10 18 GY
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;11 19 GY
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;12 20 GY
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;13 21 YA
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;14 22 YA
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;15 23 YA
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;==============================
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; setup graphics for vapor lock
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;==============================
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vapor_lock:
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; Clear Page0
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lda #$0
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sta DRAW_PAGE
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lda #$ee ; full screen white $ff
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jsr clear_gr
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lda #$dd
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ldy #40
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jsr clear_page_loop ; make top half grey2 $aa
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lda #$aa
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ldy #24
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jsr clear_page_loop ; make top half grey2 $aa
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lda #$ee
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ldy #10
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jsr clear_page_loop ; make top half grey2 $aa
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; set up a rainbow to aid in exact lock
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ldy #00
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rainbow_loop:
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tya
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sta $728+20,Y
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iny
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cpy #20
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bne rainbow_loop
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;btt:
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; jmp btt
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;=====================================================
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; attempt vapor lock
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; by reading the "floating bus" we can see most recently
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; written value of the display
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;=====================================================
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; See:
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; Have an Apple Split by Bob Bishop
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; Softalk, October 1982
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; Challenges: each scan line scans 40 bytes.
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; The blanking happens at the *beginning*
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; So 65 bytes are scanned, starting at adress of the line - 25
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; the scan takes 8 cycles, look for 4 repeats of the value
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; to avoid false positive found if the horiz blanking is mirroring
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; the line (max 3 repeats in that case)
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vapor_lock_loop:
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; first make sure we have a full line of $aa
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lda #$aa ; 2
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zxloop:
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ldx #$04 ; 2
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wiloop:
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cmp $C051 ; read the floating bus ; 4
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bne zxloop ; if not, start from scratch ; 2/3
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dex ; we were, dec ; 2
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bne wiloop ; if not 4 of them, restart ; 3/2
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; if we get here we read 4 proper pixels, 11 apart (2+4+2+2+3)
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; 0 11 22 33, clock at 34
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; 1 12 23 34, clock at 35
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; 2 13 24 35, clock at 36
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; 3 14 25 36, clock at 37
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; 4 15 26 37, clock at 38
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; 5 16 27 38, clock at 39
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; 6 17 28 39, clock at 40
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; X X X X
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; X X X X
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; X X X X
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; X X X X
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; X X X X
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; X X X X
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; X X X X
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; 0123456789012345678901234 0123456789012345678901234567890123456789
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; 1 2 1 2 3
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; hsync pixels
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; XXXXXXXXXXXXXXXXXXXXXXXXX 4444444444444444444444444444440123456789
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; now look for the color change that
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; happens at line 13*8 = 104
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lda #$dd ; 2
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zloop:
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ldx #$04 ; 2
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qloop:
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cmp $C051 ; read floating bus ; 4
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bne zloop ; 2/3
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dex ; 2
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bne qloop ; 3/2
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;============
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; 11
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; Found it!
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; if we get here we read 4 proper pixels, 11 apart (2+4+2+2+3)
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; 0 11 22 33, clock at 34
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; 1 12 23 34, clock at 35
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; 2 13 24 35, clock at 36
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; 3 14 25 36, clock at 37
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; 4 15 26 37, clock at 38
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; 5 16 27 38, clock at 39
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; 6 17 28 39, clock at 40
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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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; up to find our exact location
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; delay 65 * 8 = 520
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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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lda #226 ; 2
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jsr delay_a ; delay 25+226 = 251
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; now near end of line 112
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lda $C051 ; 4
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;kbb:
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; jmp kbb
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; we are in theory on line $728 = 14*8 = 112
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; so 112*65 = 7280 cycles from start
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; we are actualy 25+20+A pixels in
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; 7325+A
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; Our goal is line 114 at 7410 cycles
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; 7410 - 7325 = 85
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; so kill 85-A cycles
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; -6 to do subtraction
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; -6 for rts
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; -25 for delay_a overhead
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eor #$ff ; 2
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sec ; 2
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adc #48 ; 2
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jsr delay_a ; should total 48 cycles
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done_vapor_lock:
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rts ; 6
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; Some random related work
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; Docs:
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; Lancaster
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; Bishop
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; Sather
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; Vaguely relevant but no help with the Apple II+ issue
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;
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; Eamon: Screen display and timing synchronization
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; on the Apple IIe and Apple IIgs
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;
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; Adams: Visually presented verbal stimuli by assembly
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; language on the Apple II computer.
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; Cavanagh and Anstis: Visual psychophysics on the
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; Apple II: Getting started
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Binary file not shown.
@ -128,90 +128,29 @@ waterfall_demo:
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; setup graphics for vapor lock
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;==============================
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; Clear Page0 to all green
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lda #$0
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sta DRAW_PAGE
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lda #$44
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jsr clear_gr
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jsr vapor_lock ; 6
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; Make top half of screen blue, down to line 26
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lda #$11
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ldy #24
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jsr clear_page_loop
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;=====================================================
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; attempt vapor lock
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; by reading the "floating bus" we can see most recently
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; written value of the display
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; we look for $55 (which is the grey line)
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;=====================================================
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; See:
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; Have an Apple Split by Bob Bishop
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; Softalk, October 1982
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; Challenges: each scan line scans 40 bytes.
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; The blanking happens at the *beginning*
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; So 65 bytes are scanned, starting at adress of the line - 25
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; the scan takes 8 cycles, look for 4 repeats of the value
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; to avoid false positive found if the horiz blanking is mirroring
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; the line (max 3 repeats in that case)
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vapor_lock_loop: ; first make sure we have all blue
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lda #$11 ; 2
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zxloop:
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ldx #$04 ; 2
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wiloop:
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cmp $C051 ; 4
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bne zxloop ; 2/3
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dex ; 2
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bne wiloop ; 2/3
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lda #$44 ; now look for our color (4 times) ; 2
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zloop:
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ldx #$04 ; 2
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; what cycle does CMP happen at?
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; while matching match = 4+2+2+3 = 11???
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; if start at x=0, 0, 11, 22, 33 exit at 43
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; if start at x=1, 1, 12, 23, 34 exit at 44
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; if start at x=2, 2, 13, 24, 35 exit at 45
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; if start at x=3, 3, 14, 25, 36 exit at 46
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; if start at x=4, 4, 15, 26, 37 exit at 47
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; if start at x=5, 5, 16, 27, 38 exit at 48
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; if start at x=6, 6, 17, 28, 39 exit at 49
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; if start at x=7, 7, 18, 29, *40 exit at **
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; if start at x=8, 8, 19, 30, *41 exit at **
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; if not match, 2+4+3 = 9, first match = 8
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qloop:
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cmp $C051 ; 4
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bne zloop ; 2/3
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dex ; 2
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bne qloop ; 2/3
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; found first line of black after green, at up to line 26 on screen
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; so we want roughly 22 lines * 4 = 88*65 = 5720 + 4550 = 10270
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; - 65 (for the scanline we missed) = 10205 - 12 = 10193
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; vapor lock returns with us at beginning of hsync in line
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; 114 (7410 cycles), so with 5070 lines to go
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jsr gr_copy_to_current ; 6+ 9292
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; 10193 - 9298 = 895
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; Fudge factor (unknown) -30 = 865
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; now we have 322 left
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; GR part
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bit LORES ; 4
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bit SET_GR ; 4
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bit FULLGR ; 4
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; Try X=88 Y=2 cycles=893 R2
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; 322 - 12 = 310
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; -3 for jmp
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; 307
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nop ; 2
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ldy #2 ; 2
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; Try X=9 Y=6 cycles=307
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ldy #6 ; 2
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loopA:
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ldx #88 ; 2
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ldx #9 ; 2
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loopB:
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dex ; 2
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bne loopB ; 2nt/3
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@ -535,6 +474,9 @@ gr_offsets:
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.include "gr_unrolled_copy.s"
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.include "put_sprite.s"
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.include "mockingboard.s"
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.include "vapor_lock.s"
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.include "delay_a.s"
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.include "waterfall_page1.inc"
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.include "waterfall_page2.inc"
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@ -645,13 +587,16 @@ twinkle_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE1 ; 4
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lda YPOS ; 3
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bit PAGE1 ; 4
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; endfalls
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; delay 21
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asl DUMMY ; 6
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nop
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nop
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; asl DUMMY ; 6
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asl DUMMY ; 6
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asl DUMMY ; 6
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lda YPOS ; 3
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@ -665,13 +610,16 @@ twinkle_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE1 ; 4
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lda YPOS ; 3
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bit PAGE1 ; 4
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; end falls
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; delay 21
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asl DUMMY ; 6
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; asl DUMMY ; 6
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nop
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nop
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asl DUMMY ; 6
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asl DUMMY ; 6
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lda YPOS ; 3
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@ -685,13 +633,16 @@ twinkle_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE1 ; 4
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lda YPOS ; 3
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bit PAGE1 ; 4
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; end falls
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; delay 21
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asl DUMMY ; 6
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; asl DUMMY ; 6
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nop
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nop
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asl DUMMY ; 6
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asl DUMMY ; 6
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lda YPOS ; 3
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@ -705,13 +656,16 @@ twinkle_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE1 ; 4
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lda YPOS ; 3
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bit PAGE1 ; 4 ; 44
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; end falls
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; delay 21 - 7 from loop
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asl DUMMY ; 6
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; asl DUMMY ; 6
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nop
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nop
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asl DUMMY ; 6
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nop ; 2 ; 58
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@ -733,13 +687,16 @@ falls_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE0 ; 4
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lda YPOS ; 3
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bit PAGE0 ; 4
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; endfalls
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; delay 21
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asl DUMMY ; 6
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; asl DUMMY ; 6
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nop
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nop
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asl DUMMY ; 6
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asl DUMMY ; 6
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lda YPOS ; 3
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@ -753,13 +710,16 @@ falls_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE0 ; 4
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lda YPOS ; 3
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bit PAGE0 ; 4
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; end falls
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; delay 21
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asl DUMMY ; 6
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; asl DUMMY ; 6
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nop
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nop
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asl DUMMY ; 6
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asl DUMMY ; 6
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lda YPOS ; 3
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@ -773,13 +733,16 @@ falls_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE1 ; 4
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lda YPOS ; 3
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bit PAGE0 ; 4
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; end falls
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; delay 21
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asl DUMMY ; 6
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; asl DUMMY ; 6
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nop
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nop
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asl DUMMY ; 6
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asl DUMMY ; 6
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lda YPOS ; 3
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@ -793,13 +756,16 @@ falls_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE1 ; 4
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lda YPOS ; 3
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bit PAGE0 ; 4 ; 44
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; end falls
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; delay 21 - 7 from loop
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asl DUMMY ; 6
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; asl DUMMY ; 6
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nop
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nop
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asl DUMMY ; 6
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nop ; 2 ; 58
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@ -822,13 +788,16 @@ ground_loop_even:
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asl DUMMY ; 6
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lda YPOS ; 3
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nop ; 2
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nop
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; falls
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bit PAGE0 ; 4
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lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -842,13 +811,16 @@ ground_loop_even:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -862,13 +834,16 @@ ground_loop_even:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -882,13 +857,16 @@ ground_loop_even:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -990,13 +968,16 @@ twinkle_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1010,13 +991,16 @@ twinkle_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1030,13 +1014,16 @@ twinkle_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1050,13 +1037,16 @@ twinkle_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1078,13 +1068,16 @@ falls_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1098,13 +1091,16 @@ falls_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1118,13 +1114,16 @@ falls_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1138,13 +1137,16 @@ falls_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1167,13 +1169,16 @@ ground_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1187,13 +1192,16 @@ ground_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1207,13 +1215,16 @@ ground_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1227,13 +1238,16 @@ ground_loop_odd:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1354,13 +1368,16 @@ twinkle_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1374,13 +1391,16 @@ twinkle_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1394,13 +1414,16 @@ twinkle_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1414,13 +1437,16 @@ twinkle_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1442,13 +1468,16 @@ falls_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1462,13 +1491,16 @@ falls_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1482,13 +1514,16 @@ falls_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1502,13 +1537,16 @@ falls_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1531,13 +1569,16 @@ ground_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1551,13 +1592,16 @@ ground_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1571,13 +1615,16 @@ ground_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1591,13 +1638,16 @@ ground_loop_three:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1702,13 +1752,16 @@ twinkle_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1722,13 +1775,16 @@ twinkle_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1742,13 +1798,16 @@ twinkle_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1762,13 +1821,16 @@ twinkle_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1790,13 +1852,16 @@ falls_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1810,13 +1875,16 @@ falls_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1830,13 +1898,16 @@ falls_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1850,13 +1921,16 @@ falls_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
@ -1879,13 +1953,16 @@ ground_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; endfalls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1899,13 +1976,16 @@ ground_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
; asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1919,13 +1999,16 @@ ground_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE0 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE0 ; 4
|
||||
; end falls
|
||||
; delay 21
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
@ -1939,13 +2022,16 @@ ground_loop_four:
|
||||
asl DUMMY ; 6
|
||||
lda YPOS ; 3
|
||||
nop ; 2
|
||||
nop
|
||||
; falls
|
||||
bit PAGE1 ; 4
|
||||
lda YPOS ; 3
|
||||
bit PAGE1 ; 4 ; 44
|
||||
; end falls
|
||||
; delay 21 - 7 from loop
|
||||
asl DUMMY ; 6
|
||||
nop
|
||||
nop
|
||||
; asl DUMMY ; 6
|
||||
asl DUMMY ; 6
|
||||
nop ; 2 ; 58
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user