bubble_hgr: more size optimization
This commit is contained in:
Vince Weaver
parent
bb6627b75a
commit
83bd798037
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@ -7,10 +7,12 @@ EMPTY_DISK = ../../../empty_disk
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all: bubble.dsk
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bubble.dsk: HELLO BUBBLE_TINY
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bubble.dsk: HELLO BUBBLE_TINY BUBBLE_SQUARES BUBBLE_ROM
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cp $(EMPTY_DISK)/empty.dsk bubble.dsk
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$(DOS33) -y bubble.dsk SAVE A HELLO
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$(DOS33) -y bubble.dsk BSAVE -a 0x0C00 BUBBLE_TINY
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$(DOS33) -y bubble.dsk BSAVE -a 0x0C00 BUBBLE_SQUARES
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$(DOS33) -y bubble.dsk BSAVE -a 0x0C00 BUBBLE_ROM
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###
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@ -27,6 +29,24 @@ bubble_tiny.o: bubble_tiny.s
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###
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clean:
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rm -f *~ *.o *.lst HELLO BUBBLE_TINY
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BUBBLE_SQUARES: bubble_squares.o
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ld65 -o BUBBLE_SQUARES bubble_squares.o -C $(LINKER_SCRIPTS)/apple2_c00.inc
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bubble_squares.o: bubble_squares.s hgr_clear_codegen.s
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ca65 -o bubble_squares.o bubble_squares.s -l bubble_squares.lst
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###
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BUBBLE_ROM: bubble_rom.o
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ld65 -o BUBBLE_ROM bubble_rom.o -C $(LINKER_SCRIPTS)/apple2_c00.inc
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bubble_rom.o: bubble_rom.s
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ca65 -o bubble_rom.o bubble_rom.s -l bubble_rom.lst
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###
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clean:
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rm -f *~ *.o *.lst HELLO BUBBLE_TINY BUBBLE_ROM
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@ -0,0 +1,336 @@
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; bubble universe -- Apple II Hires
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; even more size optimized version
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; by Vince `deater` Weaver
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; this version based on fast c64 code by serato_fig
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; as posted to the sizecoding discord
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; based on his TIC-80 variant
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; originally was working off the BASIC code posted on the pouet forum
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; original effect by yuruyrau on twitter
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; 534 bytes -- original tiny version
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; 529 bytes -- back out self modifying U/V code (allows more compact tables)
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; 492 bytes -- hook up compact sine generation
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; 445 bytes -- strip out keyboard code
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; 208 bytes -- use ROM routines
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; 203 bytes -- optimize page flip
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; soft-switches
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KEYPRESS = $C000
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KEYRESET = $C010
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PAGE1 = $C054
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PAGE2 = $C055
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; ROM routines
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BKGNDZ = $F3F2 ; clear current page to 0
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BKGND0 = $F3F4 ; clear current page to A
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HGR2 = $F3D8 ; set hires page2 and clear $4000-$5fff
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HGR = $F3E2 ; set hires page1 and clear $2000-$3fff
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HPLOT0 = $F457 ; plot at (Y,X), (A)
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HCOLOR1 = $F6F0 ; set HGR_COLOR to value in X
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;COLORTBL = $F6F6
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;WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us
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; zero page
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GBASL = $26
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GBASH = $27
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HPLOTYL = $92
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I = $D0
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J = $D1
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T = $D7
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U = $D8
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V = $D9
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IT = $DA
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IS = $DB
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HGR_PAGE = $E6
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OUTL = $FC
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OUTH = $FD
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sines = sines_base-$1A ; 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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bubble:
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;==========================
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; setup lookup tables
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;==========================
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; jsr hgr_make_tables
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; jsr hgr_clear_codegen
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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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ldy #$19 ; offset
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ldx #$48 ; want to write $48 downto $30
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; with $42 doubled
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looper:
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txa
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sta sines,Y ; sines+12 .... sines
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lda #$59 ; also write $59 off the top
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sta fifty_nines,Y
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cpy #$13 ; we could save more bytes if we didn't
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beq skipper ; bother trying to be exact
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dex
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skipper:
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dey
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bpl 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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; 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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;=======================
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; init variables
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; HGR leaves A at 0
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; lda #0
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; sta U
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; sta V
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; sta T
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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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; 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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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 for cosine use
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sta sines2,X
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dex
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bne init_loop
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;=======================
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; init graphics
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jsr HGR ; why both?
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jsr HGR2
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ldx #7
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jsr HCOLOR1
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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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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 ; Y should be 0 here?
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sta IS
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i_smc:
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lda #1 ; 40
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sta I
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i_loop:
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j_smc:
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lda #24 ; 200
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sta J
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j_loop:
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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
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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 ; 2
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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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; max value for both $60 so carry not set
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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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;===========================================================
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; HPLOT U+44,V+96
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; U is centered at 96, to get to center of 280 screen add 44
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; U already in A
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adc #44 ; 2
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tax ; 2
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; calculate Ypos
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lda V
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; HPLOT0 = $F457 ; plot at (Y,X), (A)
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ldy #0
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jsr HPLOT0
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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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end:
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flip_pages:
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; flip pages
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; if $20 (draw PAGE1) draw PAGE2, SHOW page1
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; if $40 (draw PAGE2) draw PAGE1, SHOW page2
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lda HGR_PAGE
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eor #$60
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sta HGR_PAGE
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cmp #$40
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bne flip2
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flip1:
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sta PAGE1
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beq done_flip
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flip2:
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sta PAGE2
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done_flip:
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; lda HGR_PAGE
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sta OUTH
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clear_loop_fix:
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lda #$00
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tay
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; assume INL starts at 0 from clearing earlier
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clear_loop:
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sta (OUTL),Y
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iny
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bne clear_loop
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inc OUTH
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lda OUTH
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and #$1f
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bne clear_loop_fix
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; jsr BKGNDZ ; clear screen to black
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beq next_frame ; bra
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;.include "hgr_clear_codegen.s"
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.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
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.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
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; need 26 bytes of destroyable area?
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; alternately, need code to copy 26 bytes
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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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;old_sines_base:
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; .byte $42,$43,$44,$45,$46,$47,$48,
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sines_base:
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.byte $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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; floor(s*cos((x-96)*PI*2/256.0)+48.5);
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@ -0,0 +1,425 @@
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; bubble universe -- Apple II Hires
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; even more size optimized version
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; by Vince `deater` Weaver
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||||
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; this version based on fast c64 code by serato_fig
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; as posted to the sizecoding discord
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; based on his TIC-80 variant
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||||
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; originally was working off the BASIC code posted on the pouet forum
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; original effect by yuruyrau on twitter
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; 534 bytes -- original tiny version
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; 529 bytes -- back out self modifying U/V code (allows more compact tables)
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; soft-switches
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KEYPRESS = $C000
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KEYRESET = $C010
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PAGE1 = $C054
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PAGE2 = $C055
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; ROM routines
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BKGND0 = $F3F4 ; clear current page to A
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HGR2 = $F3D8 ; set hires page2 and clear $4000-$5fff
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HGR = $F3E2 ; set hires page1 and clear $2000-$3fff
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HPLOT0 = $F457 ; plot at (Y,X), (A)
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;HCOLOR1 = $F6F0 ; set HGR_COLOR to value in X
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;COLORTBL = $F6F6
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;WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us
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; zero page
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GBASL = $26
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GBASH = $27
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HPLOTYL = $92
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I = $D0
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J = $D1
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T = $D7
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U = $D8
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V = $D9
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IT = $DA
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IS = $DB
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HGR_PAGE = $E6
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INL = $FC
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INH = $FD
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OUTL = $FE
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OUTH = $FF
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; const
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;NUM = 32
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;NUM = 24
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bubble:
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;========================
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; setup lookup tables
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jsr hgr_make_tables
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jsr hgr_clear_codegen
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jsr setup_sine_table
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;=======================
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; init graphics
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jsr HGR
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jsr HGR2
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;=======================
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; init variables
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; HGR leaves A at 0
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; lda #0
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sta U
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sta V
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sta T
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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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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 ; Y should be 0 here?
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sta IS
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i_smc:
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lda #24 ; 40
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sta I
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i_loop:
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j_smc:
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lda #24 ; 200
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sta J
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j_loop:
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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
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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 ; 2
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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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; max value for both $60 so carry not set
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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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;===========================================================
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; HPLOT U+44,V+96
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; U is centered at 96, to get to center of 280 screen add 44
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; U already in A
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adc #44 ; 2
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tax ; 2
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; calculate Ypos
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ldy V
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; "fast" hplot, Xpos in X, Ypos in A
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; Apple II hi-res is more-or-less 280x192
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; two consecutive pixels on are white
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; single pixels are colored based on palette
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; we treat things as a monochrome display, on a color
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; display odd/even pixels will have different colors
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; The Y memory offset is a horrible interleaved mess, so we use
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; a lookup table we generated at start. We also add in
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; the proper value for page-flipping
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; Apple II hi-res is 7 pixels/byte, so we also pre-generate
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; div and mod by 7 tables at start and use those
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; instead of dividing by 7
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; We cheat and don't worry about the X positions larger
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; than 256 because our algorithm only goes up to 208
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lda hposn_low,Y ; 4
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sta GBASL ; 3
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lda hposn_high,Y ; 4
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ora HGR_PAGE ; 3
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sta GBASH ; 3
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; 21
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ldy div7_table,X ; 4
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lda mod7_table,X ; 4
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tax ; 2
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; 31
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; get current 7-bit pixel range, OR in to set new pixel
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lda (GBASL),Y ; 5
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ora log_lookup,X ; 4
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; eor log_lookup,X ; 4
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sta (GBASL),Y ; 6
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; 46
|
||||
|
||||
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:
|
||||
|
||||
lda KEYPRESS
|
||||
bpl flip_pages
|
||||
bit KEYRESET
|
||||
; 0110 -> 0100
|
||||
and #$5f ; to handle lowercase too...
|
||||
|
||||
cmp #'A'
|
||||
bne check_z
|
||||
inc i_smc+1
|
||||
jmp done_keys
|
||||
check_z:
|
||||
cmp #'Z'
|
||||
bne check_j
|
||||
dec i_smc+1
|
||||
jmp done_keys
|
||||
check_j:
|
||||
cmp #'J'
|
||||
bne check_m
|
||||
inc j_smc+1
|
||||
jmp done_keys
|
||||
check_m:
|
||||
cmp #'M'
|
||||
bne done_keys
|
||||
dec j_smc+1
|
||||
|
||||
done_keys:
|
||||
|
||||
flip_pages:
|
||||
; flip pages
|
||||
|
||||
; if $20 (draw PAGE1) draw PAGE2, SHOW page1
|
||||
; if $40 (draw PAGE2) draw PAGE1, SHOW page2
|
||||
|
||||
lda HGR_PAGE
|
||||
eor #$60
|
||||
sta HGR_PAGE
|
||||
|
||||
cmp #$40
|
||||
bne flip2
|
||||
flip1:
|
||||
bit PAGE1
|
||||
lda #0
|
||||
jsr hgr_page2_clearscreen
|
||||
jmp next_frame
|
||||
flip2:
|
||||
bit PAGE2
|
||||
lda #0
|
||||
jsr hgr_page1_clearscreen
|
||||
jmp next_frame
|
||||
|
||||
|
||||
div7_table = $6800
|
||||
mod7_table = $6900
|
||||
hposn_high = $6a00
|
||||
hposn_low = $6b00
|
||||
|
||||
|
||||
hgr_make_tables:
|
||||
|
||||
;=====================
|
||||
; make /7 %7 tables
|
||||
;=====================
|
||||
|
||||
hgr_make_7_tables:
|
||||
|
||||
lda #0
|
||||
tax
|
||||
tay
|
||||
div7_loop:
|
||||
sta div7_table,Y
|
||||
mod7_smc:
|
||||
stx mod7_table
|
||||
|
||||
inx
|
||||
cpx #7
|
||||
bne div7_not7
|
||||
|
||||
clc
|
||||
adc #1
|
||||
ldx #0
|
||||
|
||||
div7_not7:
|
||||
inc mod7_smc+1 ; assume on page boundary
|
||||
iny
|
||||
bne div7_loop
|
||||
|
||||
|
||||
; Hposn table
|
||||
|
||||
; hposn_low, hposn_high will each be filled with $C0 bytes
|
||||
; based on routine by John Brooks
|
||||
; posted on comp.sys.apple2 on 2018-07-11
|
||||
; https://groups.google.com/d/msg/comp.sys.apple2/v2HOfHOmeNQ/zD76fJg_BAAJ
|
||||
; clobbers A,X
|
||||
; preserves Y
|
||||
|
||||
; vmw note: version I was using based on applesoft HPOSN was ~64 bytes
|
||||
; this one is 37 bytes
|
||||
|
||||
build_hposn_tables:
|
||||
ldx #0
|
||||
btmi:
|
||||
txa
|
||||
and #$F8
|
||||
bpl btpl1
|
||||
ora #5
|
||||
btpl1:
|
||||
asl
|
||||
bpl btpl2
|
||||
ora #5
|
||||
btpl2:
|
||||
asl
|
||||
asl
|
||||
sta hposn_low, X
|
||||
txa
|
||||
and #7
|
||||
rol
|
||||
asl hposn_low, X
|
||||
rol
|
||||
; ora #$20
|
||||
sta hposn_high, X
|
||||
inx
|
||||
cpx #$C0
|
||||
bne btmi
|
||||
|
||||
rts
|
||||
|
||||
; which of 7 pixels to draw
|
||||
; note high bit is set to pick blue/orange palette
|
||||
; clear to get purple/green instead
|
||||
log_lookup:
|
||||
.byte $81,$82,$84,$88,$90,$A0,$C0,$80
|
||||
|
||||
; the current "fast" code expects to be aligned on boundary
|
||||
; also have to double things up as the code can go up to 255 off
|
||||
; end for speed reasons
|
||||
|
||||
|
||||
; floor(s*sin((x-96)*PI*2/256.0)+48.5);
|
||||
|
||||
|
||||
.include "hgr_clear_codegen.s"
|
||||
|
||||
|
||||
; note: min=7, around 32
|
||||
; max=89 ($59), around 160
|
||||
; subtract 7, so 0...82? halfway = 41 = $29 + 7 = $30
|
||||
; halfway= 6*16 = 96
|
||||
|
||||
sines = $6c00
|
||||
sines2 = $6d00
|
||||
cosines = $6e00
|
||||
cosines2= $6f00
|
||||
|
||||
;===================================
|
||||
;
|
||||
;
|
||||
; 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:
|
||||
|
||||
ldy #64
|
||||
ldx #64
|
||||
setup_sine_loop:
|
||||
|
||||
lda sines_base,Y
|
||||
sta sines,Y
|
||||
sta sines2,Y
|
||||
sta sines,X
|
||||
sta sines2,X
|
||||
|
||||
lda #$60
|
||||
sec
|
||||
sbc sines_base,Y
|
||||
|
||||
sta sines+128,Y
|
||||
sta sines2+128,Y
|
||||
sta sines+128,X
|
||||
sta sines2+128,X
|
||||
|
||||
inx
|
||||
dey
|
||||
bpl setup_sine_loop
|
||||
|
||||
|
||||
ldy #0
|
||||
cosine_loop:
|
||||
lda sines+192,Y
|
||||
sta cosines,Y
|
||||
sta cosines2,Y
|
||||
iny
|
||||
bne cosine_loop
|
||||
|
||||
rts
|
||||
|
||||
|
||||
; .byte $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3A,$3B,$3C,$3D,$3E,$3F
|
||||
; .byte $40,$41,$42
|
||||
;old_sines_base:
|
||||
; .byte $42,$43,$44,$45,$46,$47,$48,
|
||||
sines_base:
|
||||
.byte $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);
|
||||
|
|
@ -13,6 +13,7 @@
|
|||
|
||||
; 534 bytes -- original tiny version
|
||||
; 529 bytes -- back out self modifying U/V code (allows more compact tables)
|
||||
; 492 bytes -- hook up compact sine generation
|
||||
|
||||
; soft-switches
|
||||
|
||||
|
|
@ -54,27 +55,81 @@ INH = $FD
|
|||
OUTL = $FE
|
||||
OUTH = $FF
|
||||
|
||||
; const
|
||||
sines = sines_base-$1A ; overlaps some code
|
||||
sines2 = sines+$100 ; duplicate so we can index cosine into it
|
||||
cosines = sines+$c0
|
||||
|
||||
;NUM = 32
|
||||
;NUM = 24
|
||||
|
||||
bubble:
|
||||
|
||||
;========================
|
||||
;==========================
|
||||
; setup lookup tables
|
||||
|
||||
;==========================
|
||||
jsr hgr_make_tables
|
||||
|
||||
jsr hgr_clear_codegen
|
||||
|
||||
jsr setup_sine_table
|
||||
|
||||
;=======================
|
||||
; init graphics
|
||||
;=========================
|
||||
; reconstruct sine base
|
||||
;=========================
|
||||
; generate the linear $30..$42 part
|
||||
; and also string of $59 on end
|
||||
; removes 26 bytes from table
|
||||
; at expense of 16+4 bytes of code
|
||||
; (4 from jsr/rts of moving over-writable table code)
|
||||
|
||||
ldy #$19 ; offset
|
||||
ldx #$48 ; want to write $48 downto $30
|
||||
; with $42 doubled
|
||||
looper:
|
||||
txa
|
||||
sta sines,Y ; sines+12 .... sines
|
||||
|
||||
lda #$59 ; also write $59 off the top
|
||||
sta fifty_nines,Y
|
||||
|
||||
cpy #$13 ; we could save more bytes if we didn't
|
||||
beq skipper ; bother trying to be exact
|
||||
dex
|
||||
skipper:
|
||||
dey
|
||||
bpl looper
|
||||
|
||||
|
||||
;==========================
|
||||
; 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,X
|
||||
|
||||
; sta sines,X
|
||||
sta sines,Y
|
||||
|
||||
lda #$60
|
||||
sec
|
||||
sbc sines,X
|
||||
|
||||
sta sines+128,X
|
||||
sta sines+128,Y
|
||||
|
||||
iny
|
||||
dex
|
||||
bpl setup_sine_loop
|
||||
|
||||
jsr HGR
|
||||
jsr HGR2
|
||||
|
||||
;=======================
|
||||
; init variables
|
||||
|
|
@ -82,9 +137,39 @@ bubble:
|
|||
; HGR leaves A at 0
|
||||
|
||||
; lda #0
|
||||
sta U
|
||||
sta V
|
||||
sta T
|
||||
; sta U
|
||||
; sta V
|
||||
; sta T
|
||||
|
||||
|
||||
;=======================
|
||||
; init variables
|
||||
;=======================
|
||||
; wipe all of zero page but $FF
|
||||
|
||||
; in theory we only need to clear/copy $00..$C0
|
||||
; but not sure how to use to our advantage
|
||||
|
||||
inx ; X=0
|
||||
ldy #0 ; Y=0
|
||||
init_loop:
|
||||
; sta a:$D0,X ; force 16-bit so doesn't wrap
|
||||
; because I guess it's bad to wipe zero page?
|
||||
; maybe it isn't?
|
||||
|
||||
sty $D0,X ; clear zero page
|
||||
|
||||
lda sines,X ; duplicate sine table for cosine use
|
||||
sta sines2,X
|
||||
|
||||
dex
|
||||
bne init_loop
|
||||
|
||||
;=======================
|
||||
; init graphics
|
||||
|
||||
jsr HGR
|
||||
jsr HGR2
|
||||
|
||||
|
||||
;=========================
|
||||
|
|
@ -355,155 +440,16 @@ log_lookup:
|
|||
.include "hgr_clear_codegen.s"
|
||||
|
||||
|
||||
; note: min=7, around 32
|
||||
; max=89 ($59), around 160
|
||||
; subtract 7, so 0...82? halfway = 41 = $29 + 7 = $30
|
||||
; halfway= 6*16 = 96
|
||||
|
||||
sines = $6c00
|
||||
sines2 = $6d00
|
||||
cosines = $6e00
|
||||
cosines2= $6f00
|
||||
|
||||
;===================================
|
||||
;
|
||||
;
|
||||
; 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:
|
||||
|
||||
ldy #64
|
||||
ldx #64
|
||||
setup_sine_loop:
|
||||
|
||||
lda sines_base,Y
|
||||
sta sines,Y
|
||||
sta sines2,Y
|
||||
sta sines,X
|
||||
sta sines2,X
|
||||
|
||||
lda #$60
|
||||
sec
|
||||
sbc sines_base,Y
|
||||
|
||||
sta sines+128,Y
|
||||
sta sines2+128,Y
|
||||
sta sines+128,X
|
||||
sta sines2+128,X
|
||||
|
||||
inx
|
||||
dey
|
||||
bpl setup_sine_loop
|
||||
|
||||
|
||||
ldy #0
|
||||
cosine_loop:
|
||||
lda sines+192,Y
|
||||
sta cosines,Y
|
||||
sta cosines2,Y
|
||||
iny
|
||||
bne cosine_loop
|
||||
|
||||
rts
|
||||
|
||||
; .byte $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3A,$3B,$3C,$3D,$3E,$3F
|
||||
; .byte $40,$41,$42
|
||||
;old_sines_base:
|
||||
; .byte $42,$43,$44,$45,$46,$47,$48,
|
||||
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
|
||||
|
||||
.if 0
|
||||
sines:
|
||||
.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,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
; original start
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
|
||||
sines2:
|
||||
.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,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
|
||||
.byte $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);
|
||||
|
||||
cosines:
|
||||
|
||||
; sine[64]
|
||||
.byte $59,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
; sine[128]
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
; sine[192]
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
; sine[0]
|
||||
.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
|
||||
|
||||
|
||||
cosines2:
|
||||
.byte $59,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
.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,$59
|
||||
.endif
|
||||
|
|
|
|||
|
|
@ -9,5 +9,5 @@
|
|||
30 PRINT:PRINT "PRESS ANY KEY TO START"
|
||||
40 GET A$
|
||||
50 IF A$="Q" THEN END
|
||||
60 PRINT:PRINT CHR$(4)"BRUN BUBBLE_TINY"
|
||||
60 PRINT:PRINT CHR$(4)"BRUN BUBBLE_ROM"
|
||||
|
||||
|
|
|
|||
|
|
@ -13,6 +13,8 @@
|
|||
|
||||
; 534 bytes -- tiny version
|
||||
; 250 bytes -- strip out fast clear and hplot code and use ROM
|
||||
; NOTE: see code in bubble_tiny, this can be easily taken down to 200 bytes
|
||||
; with better sine table generation and optimized page flip
|
||||
|
||||
; 76d03 cycles = 486659 cycles = 2fps
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
; bubble universe -- Apple II Hires
|
||||
|
||||
; size optimized version
|
||||
; even more size optimized version
|
||||
|
||||
; by Vince `deater` Weaver
|
||||
|
||||
|
|
@ -22,6 +22,8 @@
|
|||
; 1131 bytes -- generate SINE table from 65 entry lookup
|
||||
; 633 bytes -- generate COSINE table from SINE table
|
||||
; 534 bytes -- alignment was left on for some reason
|
||||
; 529 bytes -- back out self modifying U/V code (allows more compact tables)
|
||||
; 492 bytes -- more compact sine table generator
|
||||
|
||||
; soft-switches
|
||||
|
||||
|
|
@ -53,6 +55,8 @@ J = $D1
|
|||
T = $D7
|
||||
U = $D8
|
||||
V = $D9
|
||||
IT = $DA
|
||||
IS = $DB
|
||||
|
||||
HGR_PAGE = $E6
|
||||
|
||||
|
|
@ -61,27 +65,81 @@ INH = $FD
|
|||
OUTL = $FE
|
||||
OUTH = $FF
|
||||
|
||||
; const
|
||||
sines = sines_base-$1A ; overlaps some code
|
||||
sines2 = sines+$100 ; duplicate so we can index cosine into it
|
||||
cosines = sines+$c0
|
||||
|
||||
;NUM = 32
|
||||
;NUM = 24
|
||||
|
||||
bubble:
|
||||
|
||||
;========================
|
||||
;==========================
|
||||
; setup lookup tables
|
||||
|
||||
;==========================
|
||||
jsr hgr_make_tables
|
||||
|
||||
jsr hgr_clear_codegen
|
||||
|
||||
jsr setup_sine_table
|
||||
|
||||
;=======================
|
||||
; init graphics
|
||||
;=========================
|
||||
; reconstruct sine base
|
||||
;=========================
|
||||
; generate the linear $30..$42 part
|
||||
; and also string of $59 on end
|
||||
; removes 26 bytes from table
|
||||
; at expense of 16+4 bytes of code
|
||||
; (4 from jsr/rts of moving over-writable table code)
|
||||
|
||||
ldy #$19 ; offset
|
||||
ldx #$48 ; want to write $48 downto $30
|
||||
; with $42 doubled
|
||||
looper:
|
||||
txa
|
||||
sta sines,Y ; sines+12 .... sines
|
||||
|
||||
lda #$59 ; also write $59 off the top
|
||||
sta fifty_nines,Y
|
||||
|
||||
cpy #$13 ; we could save more bytes if we didn't
|
||||
beq skipper ; bother trying to be exact
|
||||
dex
|
||||
skipper:
|
||||
dey
|
||||
bpl looper
|
||||
|
||||
|
||||
;==========================
|
||||
; 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,X
|
||||
|
||||
; sta sines,X
|
||||
sta sines,Y
|
||||
|
||||
lda #$60
|
||||
sec
|
||||
sbc sines,X
|
||||
|
||||
sta sines+128,X
|
||||
sta sines+128,Y
|
||||
|
||||
iny
|
||||
dex
|
||||
bpl setup_sine_loop
|
||||
|
||||
jsr HGR
|
||||
jsr HGR2
|
||||
|
||||
;=======================
|
||||
; init variables
|
||||
|
|
@ -89,9 +147,39 @@ bubble:
|
|||
; HGR leaves A at 0
|
||||
|
||||
; lda #0
|
||||
sta U
|
||||
sta V
|
||||
sta T
|
||||
; sta U
|
||||
; sta V
|
||||
; sta T
|
||||
|
||||
|
||||
;=======================
|
||||
; init variables
|
||||
;=======================
|
||||
; wipe all of zero page but $FF
|
||||
|
||||
; in theory we only need to clear/copy $00..$C0
|
||||
; but not sure how to use to our advantage
|
||||
|
||||
inx ; X=0
|
||||
ldy #0 ; Y=0
|
||||
init_loop:
|
||||
; sta a:$D0,X ; force 16-bit so doesn't wrap
|
||||
; because I guess it's bad to wipe zero page?
|
||||
; maybe it isn't?
|
||||
|
||||
sty $D0,X ; clear zero page
|
||||
|
||||
lda sines,X ; duplicate sine table for cosine use
|
||||
sta sines2,X
|
||||
|
||||
dex
|
||||
bne init_loop
|
||||
|
||||
;=======================
|
||||
; init graphics
|
||||
|
||||
jsr HGR
|
||||
jsr HGR2
|
||||
|
||||
|
||||
;=========================
|
||||
|
|
@ -105,48 +193,51 @@ next_frame:
|
|||
; reset I*T
|
||||
|
||||
lda T
|
||||
sta it1_smc+1
|
||||
sta it2_smc+1
|
||||
sta IT
|
||||
|
||||
; reset I*S
|
||||
|
||||
lda #0
|
||||
sta is1_smc+1
|
||||
sta is2_smc+1
|
||||
lda #0 ; Y should be 0 here?
|
||||
sta IS
|
||||
|
||||
num1_smc:
|
||||
i_smc:
|
||||
lda #24 ; 40
|
||||
sta I
|
||||
|
||||
i_loop:
|
||||
num2_smc:
|
||||
|
||||
j_smc:
|
||||
lda #24 ; 200
|
||||
|
||||
sta J
|
||||
j_loop:
|
||||
ldx U
|
||||
ldy V
|
||||
|
||||
j_loop:
|
||||
|
||||
; 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
|
||||
lda IS
|
||||
adc V
|
||||
tay
|
||||
|
||||
clc
|
||||
lda IT
|
||||
adc U
|
||||
tax
|
||||
|
||||
clc ; 2
|
||||
|
||||
|
||||
|
||||
; calc: b=i+t+u;
|
||||
; u=cosines[a]+cosines[b];
|
||||
is2_smc:
|
||||
lda cosines,Y ; 4+
|
||||
it2_smc:
|
||||
adc cosines,X ; 4+
|
||||
sta V
|
||||
|
||||
; calc: a=i*s+v;
|
||||
; u=sines[a]+sines[b];
|
||||
is1_smc:
|
||||
; max value for both $60 so carry not set
|
||||
|
||||
lda sines,Y ; 4+
|
||||
it1_smc:
|
||||
adc sines,X ; 4+
|
||||
sta U ; 3
|
||||
|
||||
|
|
@ -204,17 +295,13 @@ it1_smc:
|
|||
bne j_loop
|
||||
|
||||
done_j:
|
||||
|
||||
lda is1_smc+1
|
||||
clc
|
||||
lda IS
|
||||
adc #41 ; 1/6.28 = 0.16 = 0 0 1 0 1 0 0 0 = 0x28
|
||||
sta is1_smc+1
|
||||
sta is2_smc+1
|
||||
sta IS
|
||||
dec I
|
||||
bne i_loop
|
||||
done_i:
|
||||
|
||||
; sty V
|
||||
inc T
|
||||
|
||||
end:
|
||||
|
|
@ -227,22 +314,22 @@ end:
|
|||
|
||||
cmp #'A'
|
||||
bne check_z
|
||||
inc num1_smc+1
|
||||
inc i_smc+1
|
||||
jmp done_keys
|
||||
check_z:
|
||||
cmp #'Z'
|
||||
bne check_j
|
||||
dec num1_smc+1
|
||||
dec i_smc+1
|
||||
jmp done_keys
|
||||
check_j:
|
||||
cmp #'J'
|
||||
bne check_m
|
||||
inc num2_smc+1
|
||||
inc j_smc+1
|
||||
jmp done_keys
|
||||
check_m:
|
||||
cmp #'M'
|
||||
bne done_keys
|
||||
dec num2_smc+1
|
||||
dec j_smc+1
|
||||
|
||||
done_keys:
|
||||
|
||||
|
|
@ -363,155 +450,16 @@ log_lookup:
|
|||
.include "hgr_clear_codegen.s"
|
||||
|
||||
|
||||
; note: min=7, around 32
|
||||
; max=89 ($59), around 160
|
||||
; subtract 7, so 0...82? halfway = 41 = $29 + 7 = $30
|
||||
; halfway= 6*16 = 96
|
||||
|
||||
sines = $6c00
|
||||
sines2 = $6d00
|
||||
cosines = $6e00
|
||||
cosines2= $6f00
|
||||
|
||||
;===================================
|
||||
;
|
||||
;
|
||||
; 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:
|
||||
|
||||
ldy #64
|
||||
ldx #64
|
||||
setup_sine_loop:
|
||||
|
||||
lda sines_base,Y
|
||||
sta sines,Y
|
||||
sta sines2,Y
|
||||
sta sines,X
|
||||
sta sines2,X
|
||||
|
||||
lda #$60
|
||||
sec
|
||||
sbc sines_base,Y
|
||||
|
||||
sta sines+128,Y
|
||||
sta sines2+128,Y
|
||||
sta sines+128,X
|
||||
sta sines2+128,X
|
||||
|
||||
inx
|
||||
dey
|
||||
bpl setup_sine_loop
|
||||
|
||||
|
||||
ldy #0
|
||||
cosine_loop:
|
||||
lda sines+192,Y
|
||||
sta cosines,Y
|
||||
sta cosines2,Y
|
||||
iny
|
||||
bne cosine_loop
|
||||
|
||||
rts
|
||||
|
||||
; .byte $30,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3A,$3B,$3C,$3D,$3E,$3F
|
||||
; .byte $40,$41,$42
|
||||
;old_sines_base:
|
||||
; .byte $42,$43,$44,$45,$46,$47,$48,
|
||||
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
|
||||
|
||||
.if 0
|
||||
sines:
|
||||
.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,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
; original start
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
|
||||
sines2:
|
||||
.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,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
|
||||
.byte $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);
|
||||
|
||||
cosines:
|
||||
|
||||
; sine[64]
|
||||
.byte $59,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
; sine[128]
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
; sine[192]
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
; sine[0]
|
||||
.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
|
||||
|
||||
|
||||
cosines2:
|
||||
.byte $59,$59,$59,$59,$59,$59,$59,$58,$58,$58,$58,$58,$57,$57,$57,$56
|
||||
.byte $56,$55,$55,$55,$54,$54,$53,$53,$52,$52,$51,$50,$50,$4F,$4E,$4E
|
||||
.byte $4D,$4C,$4C,$4B,$4A,$49,$48,$48,$47,$46,$45,$44,$43,$42,$42,$41
|
||||
.byte $40,$3F,$3E,$3D,$3C,$3B,$3A,$39,$38,$37,$36,$35,$34,$33,$32,$31
|
||||
.byte $30,$2F,$2E,$2D,$2C,$2B,$2A,$29,$28,$27,$26,$25,$24,$23,$22,$21
|
||||
.byte $20,$1F,$1E,$1E,$1D,$1C,$1B,$1A,$19,$18,$18,$17,$16,$15,$14,$14
|
||||
.byte $13,$12,$12,$11,$10,$10,$0F,$0E,$0E,$0D,$0D,$0C,$0C,$0B,$0B,$0B
|
||||
.byte $0A,$0A,$09,$09,$09,$08,$08,$08,$08,$08,$07,$07,$07,$07,$07,$07
|
||||
.byte $07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$09,$09,$09,$0A
|
||||
.byte $0A,$0B,$0B,$0B,$0C,$0C,$0D,$0D,$0E,$0E,$0F,$10,$10,$11,$12,$12
|
||||
|
||||
.byte $13,$14,$14,$15,$16,$17,$18,$18,$19,$1A,$1B,$1C,$1D,$1E,$1E,$1F
|
||||
.byte $20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$2A,$2B,$2C,$2D,$2E,$2F
|
||||
.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
|
||||
.endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue