mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-06-11 05:29:38 +00:00
bubble_hgr: more optimization
This commit is contained in:
Vince Weaver
parent
44b090afd9
commit
f9c64692d3
|
|
@ -7,12 +7,13 @@ EMPTY_DISK = ../../../empty_disk
|
|||
|
||||
all: bubble.dsk
|
||||
|
||||
bubble.dsk: HELLO BUBBLE_TINY BUBBLE_SQUARES BUBBLE_ROM
|
||||
bubble.dsk: HELLO BUBBLE_TINY BUBBLE_SQUARES BUBBLE_ROM BUBBLE_BLOB
|
||||
cp $(EMPTY_DISK)/empty.dsk bubble.dsk
|
||||
$(DOS33) -y bubble.dsk SAVE A HELLO
|
||||
$(DOS33) -y bubble.dsk BSAVE -a 0x0C00 BUBBLE_TINY
|
||||
$(DOS33) -y bubble.dsk BSAVE -a 0x0C00 BUBBLE_SQUARES
|
||||
$(DOS33) -y bubble.dsk BSAVE -a 0x0C00 BUBBLE_ROM
|
||||
$(DOS33) -y bubble.dsk BSAVE -a 0x0C00 BUBBLE_BLOB
|
||||
|
||||
###
|
||||
|
||||
|
|
@ -43,10 +44,19 @@ BUBBLE_ROM: bubble_rom.o
|
|||
bubble_rom.o: bubble_rom.s
|
||||
ca65 -o bubble_rom.o bubble_rom.s -l bubble_rom.lst
|
||||
|
||||
###
|
||||
|
||||
BUBBLE_BLOB: bubble_blob.o
|
||||
ld65 -o BUBBLE_BLOB bubble_blob.o -C $(LINKER_SCRIPTS)/apple2_c00.inc
|
||||
|
||||
bubble_blob.o: bubble_blob.s
|
||||
ca65 -o bubble_blob.o bubble_blob.s -l bubble_blob.lst
|
||||
|
||||
|
||||
|
||||
###
|
||||
|
||||
clean:
|
||||
rm -f *~ *.o *.lst HELLO BUBBLE_TINY BUBBLE_ROM
|
||||
rm -f *~ *.o *.lst HELLO BUBBLE_TINY BUBBLE_ROM \
|
||||
BUBBLE_SQUARES BUBBLE_BLOB
|
||||
|
||||
|
|
|
|||
353
graphics/hgr/bubble_tiny/bubble_blob.s
Normal file
353
graphics/hgr/bubble_tiny/bubble_blob.s
Normal file
|
|
@ -0,0 +1,353 @@
|
|||
; bubble universe -- Apple II Hires
|
||||
|
||||
; even more size optimized version
|
||||
|
||||
; by Vince `deater` Weaver
|
||||
|
||||
; this version based on fast c64 code by serato_fig
|
||||
; as posted to the sizecoding discord
|
||||
; based on his TIC-80 variant
|
||||
|
||||
; originally was working off the BASIC code posted on the pouet forum
|
||||
; original effect by yuruyrau on twitter
|
||||
|
||||
; for this code I always is 1
|
||||
|
||||
; 217 bytes -- original bubble_rom code
|
||||
; 202 bytes -- remove unnecessary code if I==1
|
||||
; 231 bytes -- add palette swap every 256 frames
|
||||
|
||||
; soft-switches
|
||||
|
||||
KEYPRESS = $C000
|
||||
KEYRESET = $C010
|
||||
PAGE1 = $C054
|
||||
PAGE2 = $C055
|
||||
|
||||
; ROM routines
|
||||
|
||||
BKGNDZ = $F3F2 ; clear current page to 0
|
||||
BKGND0 = $F3F4 ; clear current page to A
|
||||
HGR2 = $F3D8 ; set hires page2 and clear $4000-$5fff
|
||||
HGR = $F3E2 ; set hires page1 and clear $2000-$3fff
|
||||
HPLOT0 = $F457 ; plot at (Y,X), (A)
|
||||
HCOLOR1 = $F6F0 ; set HGR_COLOR to value in X
|
||||
|
||||
; zero page
|
||||
|
||||
I = $D0
|
||||
J = $D1
|
||||
T = $D7
|
||||
U = $D8
|
||||
V = $D9
|
||||
IT = $DA
|
||||
IS = $DB
|
||||
FRAMEH = $DC
|
||||
|
||||
HGR_PAGE = $E6
|
||||
|
||||
OUTL = $FC
|
||||
OUTH = $FD
|
||||
|
||||
;sines = sines_base-$1A ; overlaps some code
|
||||
;sines2 = sines+$100 ; duplicate so we can index cosine into it
|
||||
;cosines = sines+$c0
|
||||
|
||||
sines = $6000
|
||||
fifty_nines = sines+58
|
||||
sines2 = sines+$100
|
||||
cosines = sines+$c0
|
||||
|
||||
bubble_rom:
|
||||
|
||||
;=============================
|
||||
; reconstruct sine base table
|
||||
;=============================
|
||||
; first part linear (26 bytes)
|
||||
; have to adjust once for doubled $42
|
||||
; middle part copied from sine_data (32 bytes)
|
||||
; end part all $59 (7 bytes)
|
||||
|
||||
; offset counts down from 31 to 0
|
||||
|
||||
; sines-6,Y = linear
|
||||
; sines+26+offset = sines_data+offset
|
||||
; sines+58+offset = $59
|
||||
|
||||
ldy #$1F ; offset
|
||||
ldx #$48 ; want to write $48 downto $30
|
||||
; with $42 doubled
|
||||
looper:
|
||||
txa
|
||||
sta sines-6,Y ;
|
||||
|
||||
lda sines_data,Y
|
||||
sta sines+26,Y
|
||||
|
||||
lda #$59 ; also write $59 off the top
|
||||
sta fifty_nines,Y
|
||||
|
||||
cpy #$19 ; 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
|
||||
|
||||
|
||||
;=======================
|
||||
; 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 HGR2
|
||||
|
||||
ldx #7
|
||||
jsr HCOLOR1
|
||||
|
||||
;=========================
|
||||
;=========================
|
||||
; main loop
|
||||
;=========================
|
||||
;=========================
|
||||
|
||||
next_frame:
|
||||
|
||||
; reset I*T
|
||||
|
||||
lda T
|
||||
sta IT
|
||||
|
||||
; reset I*S
|
||||
|
||||
lda #0 ; Y should be 0 here?
|
||||
sta IS
|
||||
|
||||
;i_smc:
|
||||
; lda #1 ; 40
|
||||
; sta I
|
||||
|
||||
;i_loop:
|
||||
|
||||
j_smc:
|
||||
lda #$80
|
||||
sta J
|
||||
|
||||
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
|
||||
lda cosines,Y ; 4+
|
||||
adc cosines,X ; 4+
|
||||
sta V
|
||||
|
||||
; max value for both $60 so carry not set
|
||||
|
||||
lda sines,Y ; 4+
|
||||
adc sines,X ; 4+
|
||||
sta U ; 3
|
||||
|
||||
;===========================================================
|
||||
; HPLOT U+44,V+96
|
||||
; U is centered at 96, to get to center of 280 screen add 44
|
||||
|
||||
; U already in A
|
||||
|
||||
adc #44 ; 2
|
||||
tax ; 2
|
||||
|
||||
; calculate Ypos
|
||||
lda V
|
||||
|
||||
; HPLOT0 -- plot at (Y,X), (A)
|
||||
|
||||
ldy #0
|
||||
|
||||
jsr HPLOT0
|
||||
|
||||
dec J
|
||||
bne j_loop
|
||||
|
||||
done_j:
|
||||
|
||||
; clc
|
||||
; lda IS
|
||||
; adc #41 ; 1/6.28 = 0.16 = 0 0 1 0 1 0 0 0 = 0x28
|
||||
; sta IS
|
||||
; dec I
|
||||
; bne i_loop
|
||||
done_i:
|
||||
|
||||
inc T
|
||||
|
||||
bne done_frame
|
||||
|
||||
inc FRAMEH
|
||||
|
||||
lda FRAMEH
|
||||
|
||||
ror
|
||||
|
||||
bcc frame_odd
|
||||
frame_even:
|
||||
ldx #0
|
||||
jsr HCOLOR1
|
||||
lda #$ff
|
||||
bne done_frame_related
|
||||
|
||||
frame_odd:
|
||||
ldx #7
|
||||
jsr HCOLOR1
|
||||
lda #$0
|
||||
|
||||
done_frame_related:
|
||||
sta bg_color_smc+1
|
||||
|
||||
|
||||
|
||||
done_frame:
|
||||
|
||||
|
||||
|
||||
|
||||
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:
|
||||
sta PAGE1
|
||||
beq done_flip
|
||||
|
||||
flip2:
|
||||
sta PAGE2
|
||||
done_flip:
|
||||
|
||||
;=======================
|
||||
; clear screen
|
||||
; note can be ~8192 cycles faster at expense of few bytes
|
||||
; if we use self-modifying code instead of indirect-Y
|
||||
|
||||
; lda HGR_PAGE
|
||||
sta OUTH
|
||||
|
||||
ldy #$0
|
||||
|
||||
clear_loop_fix:
|
||||
|
||||
bg_color_smc:
|
||||
lda #$00 ; set color to black
|
||||
|
||||
; assume OUTL starts at 0 from clearing earlier
|
||||
clear_loop:
|
||||
sta (OUTL),Y
|
||||
iny
|
||||
bne clear_loop
|
||||
|
||||
inc OUTH
|
||||
lda OUTH
|
||||
and #$1f
|
||||
bne clear_loop_fix
|
||||
beq next_frame ; bra
|
||||
|
||||
; need 26 bytes of destroyable area?
|
||||
; alternately, need code to copy 26 bytes
|
||||
|
||||
; 26 bytes to gen
|
||||
; 32 bytes of base
|
||||
; 7 59s
|
||||
|
||||
; .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_data:
|
||||
;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);
|
||||
|
|
@ -20,6 +20,7 @@
|
|||
; 226 bytes -- don't have room to over-write with sine table
|
||||
; 240 bytes -- use custom, faster, clear screen
|
||||
; 237 bytes -- remove redundant HGR
|
||||
; 217 bytes -- update to not over-write code for sine base generation
|
||||
|
||||
; soft-switches
|
||||
|
||||
|
|
@ -52,32 +53,45 @@ HGR_PAGE = $E6
|
|||
OUTL = $FC
|
||||
OUTH = $FD
|
||||
|
||||
sines = sines_base-$1A ; overlaps some code
|
||||
sines2 = sines+$100 ; duplicate so we can index cosine into it
|
||||
;sines = sines_base-$1A ; overlaps some code
|
||||
;sines2 = sines+$100 ; duplicate so we can index cosine into it
|
||||
;cosines = sines+$c0
|
||||
|
||||
sines = $6000
|
||||
fifty_nines = sines+58
|
||||
sines2 = sines+$100
|
||||
cosines = sines+$c0
|
||||
|
||||
bubble_rom:
|
||||
|
||||
;=========================
|
||||
; 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)
|
||||
;=============================
|
||||
; reconstruct sine base table
|
||||
;=============================
|
||||
; first part linear (26 bytes)
|
||||
; have to adjust once for doubled $42
|
||||
; middle part copied from sine_data (32 bytes)
|
||||
; end part all $59 (7 bytes)
|
||||
|
||||
ldy #$19 ; offset
|
||||
; offset counts down from 31 to 0
|
||||
|
||||
; sines-6,Y = linear
|
||||
; sines+26+offset = sines_data+offset
|
||||
; sines+58+offset = $59
|
||||
|
||||
ldy #$1F ; offset
|
||||
ldx #$48 ; want to write $48 downto $30
|
||||
; with $42 doubled
|
||||
looper:
|
||||
txa
|
||||
sta sines,Y ; sines+12 .... sines
|
||||
sta sines-6,Y ;
|
||||
|
||||
lda sines_data,Y
|
||||
sta sines+26,Y
|
||||
|
||||
lda #$59 ; also write $59 off the top
|
||||
sta fifty_nines,Y
|
||||
|
||||
cpy #$13 ; we could save more bytes if we didn't
|
||||
cpy #$19 ; we could save more bytes if we didn't
|
||||
beq skipper ; bother trying to be exact
|
||||
dex
|
||||
skipper:
|
||||
|
|
@ -286,22 +300,28 @@ clear_loop:
|
|||
|
||||
|
||||
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
|
||||
|
||||
; need 26 bytes of destroyable area?
|
||||
; alternately, need code to copy 26 bytes
|
||||
|
||||
; 26 bytes to gen
|
||||
; 32 bytes of base
|
||||
; 7 59s
|
||||
|
||||
; .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:
|
||||
|
||||
sines_data:
|
||||
;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:
|
||||
;fifty_nines:
|
||||
; .byte $59,$59,$59,$59,$59,$59
|
||||
; .byte $59
|
||||
|
||||
|
|
|
|||
|
|
@ -9,5 +9,5 @@
|
|||
30 PRINT:PRINT "PRESS ANY KEY TO START"
|
||||
40 GET A$
|
||||
50 IF A$="Q" THEN END
|
||||
60 PRINT:PRINT CHR$(4)"BRUN BUBBLE_ROM"
|
||||
60 PRINT:PRINT CHR$(4)"BRUN BUBBLE_BLOB"
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user