bubble_gr: re-optimize
This commit is contained in:
Vince Weaver
parent
2ba9e8d5d5
commit
3df51e29ae
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@ -8,13 +8,14 @@ EMPTY_DISK = ../../../empty_disk
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all: bubble_gr.dsk make_table
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bubble_gr.dsk: HELLO BUBBLE_GR BUBBLE_COLOR BUBBLE_SMALL BUBBLE_TINY \
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COOL_LINES
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BUBBLE_TINY64 COOL_LINES
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cp $(EMPTY_DISK)/empty.dsk bubble_gr.dsk
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$(DOS33) -y bubble_gr.dsk SAVE A HELLO
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$(DOS33) -y bubble_gr.dsk BSAVE -a 0x2000 BUBBLE_GR
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$(DOS33) -y bubble_gr.dsk BSAVE -a 0x2000 BUBBLE_COLOR
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$(DOS33) -y bubble_gr.dsk BSAVE -a 0x2000 BUBBLE_SMALL
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$(DOS33) -y bubble_gr.dsk BSAVE -a 0x2000 BUBBLE_TINY
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$(DOS33) -y bubble_gr.dsk BSAVE -a 0x2000 BUBBLE_TINY64
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$(DOS33) -y bubble_gr.dsk BSAVE -a 0x2000 COOL_LINES
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###
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@ -56,6 +57,15 @@ bubble_tiny.o: bubble_tiny.s
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###
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BUBBLE_TINY64: bubble_tiny64.o
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ld65 -o BUBBLE_TINY64 bubble_tiny64.o -C $(LINKER_SCRIPTS)/apple2_2000.inc
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bubble_tiny64.o: bubble_tiny64.s
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ca65 -o bubble_tiny64.o bubble_tiny64.s -l bubble_tiny64.lst
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###
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COOL_LINES: cool_lines.o
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ld65 -o COOL_LINES cool_lines.o -C $(LINKER_SCRIPTS)/apple2_2000.inc
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@ -28,6 +28,10 @@
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; 259 bytes = undo self modifying code
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; 247 bytes = remove extra cosine table
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; 245 bytes = minor fixes
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; 268 bytes = back to 64 byte lookup
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; 264 bytes = optimize sine/cosine init
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; 262 bytes = optimize var init
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; 259 bytes = use sine_base in place
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; soft-switches
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@ -56,11 +60,14 @@ IT = $DB
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INL = $FC
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INH = $FD
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sines = $6c00
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sines2 = $6d00
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;sines = $6c00
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;sines2 = $6d00
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;cosines = $6cc0
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sines = sines_base
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sines2 = sines_base+$100
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cosines = sines_base+$c0
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cosines = $6cc0
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;cosines2= $6f00
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color_map = $1000
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@ -125,6 +132,30 @@ done:
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; X=0 here
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;=======================
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; init variables
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;=======================
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; wipe all of zero page
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; we only care about one value, the color at $30
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txa
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init_loop:
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; sta a:$D0,X ; force 16-bit so doesn't wrap
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; because I guess it's bad to wipe zero page?
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; maybe it isn't?
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sta $D0,X
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dex
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bne init_loop
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; lda #0
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; stx U
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; stx V
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; stx T
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; stx INL
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; X = 0 here
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;==========================
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; make sine/cosine tables
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;==========================
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@ -141,46 +172,21 @@ done:
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setup_sine_table:
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; spread sine table
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; load from sines_base,Y/2
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; store to SINES_BASE,Y
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; ldx #0 ; set previously
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spread_loop:
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txa
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lsr
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tay
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lda sines_base,Y
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sta SINES_BASE,X ; double the output
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inx
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cpx #64
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bne spread_loop
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; ldx #64
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ldx #64
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ldy #64
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setup_sine_loop:
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lda SINES_BASE,X
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lda sines_base,X
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sta sines,X
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sta sines2,X
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; sta sines,X
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sta sines,Y
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sta sines2,Y
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lda #$60
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sec
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sbc SINES_BASE,X
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sbc sines_base,X
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sta sines+128,X
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sta sines2+128,X
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sta sines+128,Y
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sta sines2+128,Y
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iny
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dex
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@ -190,27 +196,21 @@ setup_sine_loop:
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stx COLOR ; $FF (color white)
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inx
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;=======================
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; double the sine table
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; used for cosine
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; ldx #0
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looper:
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lda sines,X
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sta sines2,X
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dex
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bne looper
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; X is 0 here?
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;=======================
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; init variables
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;=======================
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; 245
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txa
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ldx #$30
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init_loop:
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sta $D0,X
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dex
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bne init_loop
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; lda #0
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; stx U
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; stx V
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; stx T
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; stx INL
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;=========================
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;=========================
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@ -333,16 +333,15 @@ cycle_color_loop:
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cmp #$8 ; 2
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bne cycle_color_loop ; 2
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beq next_frame ; bra ; 2
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; jmp next_frame
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; half as many points
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sines_base:
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.byte $30,$32,$34,$36,$38,$3A,$3C,$3E
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.byte $40,$42,$43,$45,$47,$48,$4A,$4C
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.byte $4D,$4E,$50,$51,$52,$53,$54,$55
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.byte $56,$57,$57,$58,$58,$59,$59,$59
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.byte $59
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.byte $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3A,$3B,$3C,$3D,$3E,$3F
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.byte $40,$41,$42,$42,$43,$44,$45,$46,$47,$48,$48,$49,$4A,$4B,$4C,$4C
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.byte $4D,$4E,$4E,$4F,$50,$50,$51,$52,$52,$53,$53,$54,$54,$55,$55,$55
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.byte $56,$56,$57,$57,$57,$58,$58,$58,$58,$58,$59,$59,$59,$59,$59,$59
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.byte $59
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; floor(s*cos((x-96)*PI*2/256.0)+48.5);
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@ -1,5 +1,7 @@
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; bubble universe tiny -- Apple II Lores
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; cosmic fish?
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; what if you zoom into a bubble universe and it's full of
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; angry bees
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@ -31,6 +33,10 @@
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; 268 bytes = back to 64 byte lookup
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; 264 bytes = optimize sine/cosine init
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; 262 bytes = optimize var init
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; 259 bytes = use sine_base in place
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; 262 bytes = add in movement, reduce sound
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; 255 bytes = rediculous code that moved table setup to be overwritten
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; and the linear parts and $59 of sine table generated
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; soft-switches
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@ -59,11 +65,9 @@ IT = $DB
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INL = $FC
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INH = $FD
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sines = $6c00
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sines2 = $6d00
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cosines = $6cc0
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;cosines2= $6f00
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sines = sines_base-$13 ; overlaps some code
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sines2 = sines+$100 ; duplicate so we can index cosine into it
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cosines = sines+$c0
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color_map = $1000
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@ -80,9 +84,303 @@ bubble_gr:
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bit FULLGR
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;========================
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;========================
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; setup lookup tables
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;========================
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;========================
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;========================
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; color lookup
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; this one moved to the end (at expense of 4 bytes)
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; so we can over-write part of sine table on top of it
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jsr setup_color_lookup
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; X=0 here
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;=========================
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; reconstruct sine base
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;=========================
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; generate the linear $30..$42 part
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; and also string of $59 on end
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; removes 26 bytes from table
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; at expense of 16+4 bytes of code
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; (4 from jsr/rts of moving over-writable table code)
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;sines:
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; .byte $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3A,$3B,$3C,$3D,$3E,$3F
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; .byte $40,$41,$42
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;
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;sines_base:
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; .byte $42,$43,$44,$45,$46,$47,$48,$48,$49,$4A,$4B,$4C,$4C
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; .byte $4D,$4E,$4E,$4F,$50,$50,$51,$52,$52,$53,$53,$54,$54,$55,$55,$55
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; .byte $56,$56,$57,$57,$57,$58,$58,$58,$58,$58
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;fifty_nines:
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; .byte $59,$59,$59,$59,$59,$59
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; .byte $59
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ldx #$42 ; want to write $42 downto $30
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looper:
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txa
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sta sines-$30,X ; sines+12 .... sines
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lda #$59
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sta fifty_nines-$30,X
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dex
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cpx #$2F
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bne looper
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;==========================
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; make sine/cosine tables
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;==========================
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; floor(s*sin((x-96)*PI*2/256.0)+48.5);
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;===================================
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;
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;
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; final_sine[i]=quarter_sine[i]; // 0..64
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; final_sine[128-i]=quarter_sine[i]; // 64..128
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; final_sine[128+i]=0x60-quarter_sine[i]; // 128..192
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; final_sine[256-i]=0x60-quarter_sine[i]; // 192..256
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setup_sine_table:
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ldx #64
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ldy #64
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setup_sine_loop:
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lda sines,X
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; sta sines,X
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sta sines,Y
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lda #$60
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sec
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sbc sines,X
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sta sines+128,X
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sta sines+128,Y
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iny
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dex
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bpl setup_sine_loop
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; X is $ff here
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; Y is $81?
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;=======================
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; init variables
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;=======================
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; wipe all of zero page but $FF
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; we only care about one value, the color at $30
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; in theory we only need to clear/copy $00..$C0
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; but not sure how to use to our advantage
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; X is $FF
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inx ; X=0
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ldy #0 ; Y=0
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init_loop:
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; sta a:$D0,X ; force 16-bit so doesn't wrap
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; because I guess it's bad to wipe zero page?
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; maybe it isn't?
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sty $D0,X ; clear zero page
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lda sines,X ; duplicate sine table
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sta sines2,X
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dex
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bne init_loop
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; lda #0
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; stx U
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; stx V
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; stx T
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; stx INL
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; X = 0 here
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dex
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stx COLOR ; $FF (color white)
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;=========================
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;=========================
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; main loop
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;=========================
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;=========================
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; in theory Y=0 from previous loop, but not init above?
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next_frame:
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; reset I*T
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lda T
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sta IT
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; reset I*S
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lda #0
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sta IS
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i_smc:
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lda #13 ; 13
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sta I
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i_loop:
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j_smc:
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lda #$18 ; 24
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sta J
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j_loop:
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; bit SPEAKER ; click speaker
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; where S=41 (approximately 1/6.28)
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; calc: a=i*s+v;
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; calc: b=i+t+u;
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; u=sines[a]+sines[b];
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; v=cosines[a]+cosines[b];
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clc ; 2
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lda IS
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adc V
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tay
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clc
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lda IT
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adc U
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tax
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clc
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lda cosines,Y ; 4+
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adc cosines,X ; 4+
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sta V
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lda sines,Y ; 4+
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adc sines,X ; 4+
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sta U ; 3
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; bit SPEAKER ; click speaker
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;===========================================================
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; original code is centered at 96,96 (on hypothetical 192x192 screen)
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; we adjust to be 40x48 window centered at 48,48
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; PLOT U-48,V-48
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; U already in A
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; sec
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usmc:
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sbc #48
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tay ; 2
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cpy #40
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bcs no_plot
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; calculate Ypos
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lda V
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; sec
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vsmc:
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sbc #48
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cmp #48
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bcs no_plot
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bit SPEAKER ; click speaker
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jsr PLOT ; PLOT AT Y,A
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no_plot:
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dec J
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bne j_loop
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done_j:
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clc
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lda IS
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adc #41 ; 1/6.28 = 0.16 = 0 0 1 0 1 0 0 0 = 0x28
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sta IS
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dec I
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bne i_loop
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done_i:
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inc T
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; bne ook
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; sta usmc+1
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; eor $20
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; sta usmc+1
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;ook:
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;======================
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; extra motion
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;======================
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; movex=cool
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; movey=meh
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; both=meh
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; both, index with T/2?=meh
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;=======================
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; move X
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; ldx T
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; lda sines,X
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; sta usmc+1
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;=======================
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; move Y
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ldx T
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lda cosines,X
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sta vsmc+1
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end:
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;=================
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; cycle colors
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ldy #$0 ; 2
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lda #4 ; 2
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sta INH ; 2
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cycle_color_loop:
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lda (INL),Y ; 2
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tax ; 1
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lda color_map,X ; 3
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sta (INL),Y ; 2
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iny ; 1
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bne cycle_color_loop ; 2
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; need to do this for pages 4-7
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inc INH ; 2
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lda INH ; 2
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cmp #$8 ; 2
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bne cycle_color_loop ; 2
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beq next_frame ; bra ; 2
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; jmp next_frame ; bra ; 2
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;========================
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; color lookup
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|
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@ -92,7 +390,7 @@ bubble_gr:
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; 31 fixed
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; 29 improved
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setup_color_lookup:
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;================
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; current best
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@ -125,226 +423,19 @@ yloop2:
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jmp yloop2 ; 3
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done:
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; X=0 here
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;=======================
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; init variables
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;=======================
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; actually clear all of $D0-$1D0
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; (clearing bottom of stack should be harmless?)
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; only saves a byte
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txa
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; ldx #$30
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init_loop:
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; sta a:$D0,X ; force 16-bit so doesn't wrap
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; because I guess it's bad to wipe zero page?
|
||||
; maybe it isn't?
|
||||
|
||||
sta $D0,X
|
||||
dex
|
||||
bne init_loop
|
||||
|
||||
; lda #0
|
||||
; stx U
|
||||
; stx V
|
||||
; stx T
|
||||
; stx INL
|
||||
|
||||
; X = 0 here
|
||||
|
||||
;==========================
|
||||
; make sine/cosine tables
|
||||
;==========================
|
||||
|
||||
; floor(s*sin((x-96)*PI*2/256.0)+48.5);
|
||||
|
||||
;===================================
|
||||
;
|
||||
;
|
||||
; final_sine[i]=quarter_sine[i]; // 0..64
|
||||
; final_sine[128-i]=quarter_sine[i]; // 64..128
|
||||
; final_sine[128+i]=0x60-quarter_sine[i]; // 128..192
|
||||
; final_sine[256-i]=0x60-quarter_sine[i]; // 192..256
|
||||
|
||||
setup_sine_table:
|
||||
|
||||
ldx #64
|
||||
ldy #64
|
||||
setup_sine_loop:
|
||||
|
||||
lda sines_base,X
|
||||
|
||||
sta sines,X
|
||||
; sta sines2,X
|
||||
sta sines,Y
|
||||
; sta sines2,Y
|
||||
|
||||
lda #$60
|
||||
sec
|
||||
sbc sines_base,X
|
||||
|
||||
sta sines+128,X
|
||||
; sta sines2+128,X
|
||||
sta sines+128,Y
|
||||
; sta sines2+128,Y
|
||||
|
||||
iny
|
||||
dex
|
||||
bpl setup_sine_loop
|
||||
|
||||
; X is $FF here?
|
||||
|
||||
stx COLOR ; $FF (color white)
|
||||
|
||||
|
||||
;=======================
|
||||
; double the sine table
|
||||
; used for cosine
|
||||
|
||||
; ldx #0
|
||||
looper:
|
||||
lda sines,X
|
||||
sta sines2,X
|
||||
dex
|
||||
bne looper
|
||||
|
||||
; X is 0 here?
|
||||
|
||||
|
||||
|
||||
;=========================
|
||||
;=========================
|
||||
; main loop
|
||||
;=========================
|
||||
;=========================
|
||||
|
||||
; in theory Y=0 from previous loop, but not init above?
|
||||
|
||||
next_frame:
|
||||
|
||||
; reset I*T
|
||||
|
||||
lda T
|
||||
sta IT
|
||||
|
||||
; reset I*S
|
||||
|
||||
lda #0
|
||||
sta IS
|
||||
|
||||
lda #13 ; 13
|
||||
sta I
|
||||
|
||||
i_loop:
|
||||
lda #$18 ; 24
|
||||
sta J
|
||||
j_loop:
|
||||
|
||||
bit SPEAKER ; click speaker
|
||||
|
||||
; where S=41 (approximately 1/6.28)
|
||||
; calc: a=i*s+v;
|
||||
; calc: b=i+t+u;
|
||||
; u=sines[a]+sines[b];
|
||||
; v=cosines[a]+cosines[b];
|
||||
|
||||
clc ; 2
|
||||
lda IS
|
||||
adc V
|
||||
tay
|
||||
|
||||
clc
|
||||
lda IT
|
||||
adc U
|
||||
tax
|
||||
|
||||
clc
|
||||
lda cosines,Y ; 4+
|
||||
adc cosines,X ; 4+
|
||||
sta V
|
||||
|
||||
lda sines,Y ; 4+
|
||||
adc sines,X ; 4+
|
||||
sta U ; 3
|
||||
|
||||
bit SPEAKER ; click speaker
|
||||
|
||||
;===========================================================
|
||||
; original code is centered at 96,96 (on hypothetical 192x192 screen)
|
||||
|
||||
; we adjust to be 40x48 window centered at 48,48
|
||||
|
||||
; PLOT U-48,V-48
|
||||
|
||||
; U already in A
|
||||
; sec
|
||||
sbc #48
|
||||
tay ; 2
|
||||
cpy #40
|
||||
bcs no_plot
|
||||
|
||||
; calculate Ypos
|
||||
lda V
|
||||
; sec
|
||||
sbc #48
|
||||
cmp #48
|
||||
bcs no_plot
|
||||
|
||||
|
||||
bit SPEAKER ; click speaker
|
||||
|
||||
jsr PLOT ; PLOT AT Y,A
|
||||
|
||||
no_plot:
|
||||
dec J
|
||||
bne j_loop
|
||||
|
||||
done_j:
|
||||
clc
|
||||
lda IS
|
||||
adc #41 ; 1/6.28 = 0.16 = 0 0 1 0 1 0 0 0 = 0x28
|
||||
sta IS
|
||||
dec I
|
||||
bne i_loop
|
||||
done_i:
|
||||
inc T
|
||||
|
||||
end:
|
||||
|
||||
;=================
|
||||
; cycle colors
|
||||
|
||||
ldy #$0 ; 2
|
||||
lda #4 ; 2
|
||||
sta INH ; 2
|
||||
cycle_color_loop:
|
||||
lda (INL),Y ; 2
|
||||
tax ; 1
|
||||
lda color_map,X ; 3
|
||||
sta (INL),Y ; 2
|
||||
|
||||
iny ; 1
|
||||
bne cycle_color_loop ; 2
|
||||
|
||||
; need to do this for pages 4-7
|
||||
|
||||
inc INH ; 2
|
||||
lda INH ; 2
|
||||
cmp #$8 ; 2
|
||||
bne cycle_color_loop ; 2
|
||||
beq next_frame ; bra ; 2
|
||||
; jmp next_frame
|
||||
rts
|
||||
|
||||
|
||||
|
||||
; .byte $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3A,$3B,$3C,$3D,$3E,$3F
|
||||
; .byte $40,$41,$42
|
||||
sines_base:
|
||||
.byte $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3A,$3B,$3C,$3D,$3E,$3F
|
||||
.byte $40,$41,$42,$42,$43,$44,$45,$46,$47,$48,$48,$49,$4A,$4B,$4C,$4C
|
||||
.byte $4D,$4E,$4E,$4F,$50,$50,$51,$52,$52,$53,$53,$54,$54,$55,$55,$55
|
||||
.byte $56,$56,$57,$57,$57,$58,$58,$58,$58,$58,$59,$59,$59,$59,$59,$59
|
||||
.byte $59
|
||||
.byte $42,$43,$44,$45,$46,$47,$48,$48,$49,$4A,$4B,$4C,$4C
|
||||
.byte $4D,$4E,$4E,$4F,$50,$50,$51,$52,$52,$53,$53,$54,$54,$55,$55,$55
|
||||
.byte $56,$56,$57,$57,$57,$58,$58,$58,$58,$58
|
||||
fifty_nines:
|
||||
; .byte $59,$59,$59,$59,$59,$59
|
||||
; .byte $59
|
||||
|
||||
; floor(s*cos((x-96)*PI*2/256.0)+48.5);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue