mirror of
https://github.com/deater/dos33fsprogs.git
synced 2025-03-04 19:34:16 +00:00
hgr: add interlace version of sier
This commit is contained in:
Vince Weaver
parent
8f819534b9
commit
b00015584d
@ -8,7 +8,8 @@ EMPTY_DISK = ../../../empty_disk/empty.dsk
|
||||
all: triangles.dsk
|
||||
|
||||
triangles.dsk: HELLO TINY_TRIANGLES XOR MOD9 MOD9_64 WRITING MOVE_RIGHT \
|
||||
SIER_HGR SIER_HPLOT SIER_MOVERIGHT SIER_INLINE RAINBOW_SQUARES
|
||||
SIER_HGR SIER_HPLOT SIER_MOVERIGHT SIER_INLINE SIER_INTERLACE \
|
||||
RAINBOW_SQUARES
|
||||
cp $(EMPTY_DISK) triangles.dsk
|
||||
$(DOS33) -y triangles.dsk SAVE A HELLO
|
||||
$(DOS33) -y triangles.dsk BSAVE -a 0x070 TINY_TRIANGLES
|
||||
@ -21,6 +22,7 @@ triangles.dsk: HELLO TINY_TRIANGLES XOR MOD9 MOD9_64 WRITING MOVE_RIGHT \
|
||||
$(DOS33) -y triangles.dsk BSAVE -a 0x300 SIER_INLINE
|
||||
$(DOS33) -y triangles.dsk BSAVE -a 0x300 SIER_MOVERIGHT
|
||||
$(DOS33) -y triangles.dsk BSAVE -a 0x300 SIER_HPLOT
|
||||
$(DOS33) -y triangles.dsk BSAVE -a 0x300 SIER_INTERLACE
|
||||
$(DOS33) -y triangles.dsk BSAVE -a 0x300 RAINBOW_SQUARES
|
||||
|
||||
###
|
||||
@ -62,6 +64,15 @@ sier_hgr.o: sier_hgr.s
|
||||
|
||||
###
|
||||
|
||||
SIER_INTERLACE: sier_interlace.o
|
||||
ld65 -o SIER_INTERLACE sier_interlace.o -C $(LINKER_SCRIPTS)/apple2_300.inc
|
||||
|
||||
sier_interlace.o: sier_interlace.s
|
||||
ca65 -o sier_interlace.o sier_interlace.s -l sier_interlace.lst
|
||||
|
||||
|
||||
###
|
||||
|
||||
SIER_INLINE: sier_inline.o
|
||||
ld65 -o SIER_INLINE sier_inline.o -C $(LINKER_SCRIPTS)/apple2_300.inc
|
||||
|
||||
@ -129,5 +140,5 @@ move_right.o: move_right.s
|
||||
clean:
|
||||
rm -f *~ *.o *.lst HELLO TINY_TRIANGLES XOR MOD9 MOD9_64 WRITING \
|
||||
MOVE_RIGHT SIER_HGR SIER_HPLOT SIER_MOVERIGHT \
|
||||
SIER_INLINE \
|
||||
SIER_INLINE SIER_INTERLACE \
|
||||
RAINBOW_SQUARES
|
||||
|
||||
253
graphics/hgr/tiny_triangles/sier_interlace.s
Normal file
253
graphics/hgr/tiny_triangles/sier_interlace.s
Normal file
@ -0,0 +1,253 @@
|
||||
; sierpinski-like demo
|
||||
; based on the code from Hellmood's Memories demo
|
||||
|
||||
; by Vince `deater` Weaver <vince@deater.net>
|
||||
|
||||
; the simple sierpinski you more or less just plot
|
||||
; X AND Y
|
||||
|
||||
; Hellmood's you plot something more or less like
|
||||
; COLOR = ( (Y-(X*T)) & (X+(Y*T) ) & 0xf0
|
||||
; where T is an incrementing frame value
|
||||
|
||||
; to get speed on 6502/Apple II we change the multiplies to
|
||||
; a series of 16-bit 8.8 fixed point adds
|
||||
|
||||
; TODO:
|
||||
; HPLOT: roughly 30s / frame
|
||||
; MOVERIGHT: roughly 14s / frame
|
||||
; MOVERIGHT NO COLORSHIFT:roughly 11s / frame
|
||||
; MOVERIGHT MOVEDOWN roughly 11s / frame
|
||||
; INLINE HPLOT roughly 9s / frame
|
||||
; INLINE EVERYTHING roughly 7s / frame
|
||||
; XT/YT lookup tables roughly 6s / frame
|
||||
; only write 1/7 of time roughly 3s / frame
|
||||
; only draw 128 lines roughly 2s / frame
|
||||
|
||||
; zero page
|
||||
|
||||
HGR_BITS = $1C
|
||||
GBASL = $26
|
||||
GBASH = $27
|
||||
MASK = $2E
|
||||
COLOR = $30
|
||||
HGR_HMASK = $30
|
||||
HGR_X = $E0
|
||||
HGR_Y = $E2
|
||||
HGR_COLOR = $E4
|
||||
HGR_HORIZ = $E5
|
||||
|
||||
SEVEN = $F6
|
||||
NEXTCOL = $F7
|
||||
XX_TH = $F8
|
||||
XX_TL = $F9
|
||||
YY = $FA
|
||||
YY_TH = $FB
|
||||
YY_TL = $FC
|
||||
T_L = $FD
|
||||
T_H = $FE
|
||||
SAVED = $FF
|
||||
|
||||
; Soft switches
|
||||
FULLGR = $C052
|
||||
PAGE1 = $C054
|
||||
PAGE2 = $C055
|
||||
LORES = $C056 ; Enable LORES graphics
|
||||
|
||||
; ROM routines
|
||||
HGR = $F3E2
|
||||
HGR2 = $F3D8
|
||||
HPOSN = $F411
|
||||
HPLOT0 = $F457
|
||||
HPLOT1 = $F45A ; skip the HPOSN call
|
||||
COLOR_SHIFT = $F47E ; shift color for odd/even Y (0..7 or 7..13)
|
||||
MOVE_RIGHT = $F48A ; move next plot location one to the right
|
||||
MOVE_DOWN = $F504 ; clc at f504, needed?
|
||||
; f505 is applesoft entry point but assumes c?
|
||||
; move next plot location one to the right
|
||||
|
||||
; note moveright/movedown respect HGR_PAGE
|
||||
|
||||
COLORTBL = $F6F6
|
||||
|
||||
XT_LOOKUP_TABLE = $1000
|
||||
YT_LOOKUP_TABLE = $1100
|
||||
|
||||
;.zeropage
|
||||
;.globalzp T_L,T_H
|
||||
|
||||
;================================
|
||||
; Clear screen and setup graphics
|
||||
;================================
|
||||
sier:
|
||||
jsr HGR2 ; set FULLGR, sets A=0
|
||||
|
||||
sta T_L ; start with multiplier 0
|
||||
sta T_H
|
||||
|
||||
sier_outer:
|
||||
|
||||
ldx #0 ; get X 0 for later
|
||||
stx YY ; YY starts at 0
|
||||
|
||||
; create XX_T lookup table
|
||||
; note, same as YY_T lookup table?
|
||||
|
||||
stx XX_TL ; start at 0
|
||||
stx XX_TH
|
||||
|
||||
; calc XX*T
|
||||
; only really care about XX_TH
|
||||
xt_table_loop:
|
||||
clc ; 2
|
||||
lda XX_TL ; 3
|
||||
tl_smc:
|
||||
adc T_L ; 2
|
||||
sta XX_TL ; 3
|
||||
lda XX_TH ; 3
|
||||
th_smc:
|
||||
adc T_H ; 3
|
||||
sta XX_TH ; 3
|
||||
sta YT_LOOKUP_TABLE,X ; 5
|
||||
eor #$ff ; negate, as we subtract ; 2
|
||||
sta XT_LOOKUP_TABLE,X ; 5
|
||||
inx ; 2
|
||||
bne xt_table_loop ; 3/2
|
||||
|
||||
|
||||
; inc T
|
||||
; clc
|
||||
lda T_L
|
||||
speed_smc:
|
||||
adc #2
|
||||
sta T_L
|
||||
bcc no_carry
|
||||
inc T_H
|
||||
no_carry:
|
||||
|
||||
; speed up the zoom as it goes
|
||||
inc speed_smc+1
|
||||
|
||||
; interlace (start at line 32 or 33)
|
||||
|
||||
lda blah_smc+1
|
||||
eor #$4
|
||||
sta blah_smc+1
|
||||
|
||||
lda #$1 ; center
|
||||
sta GBASL
|
||||
|
||||
blah_smc:
|
||||
lda #$42 ; start on page2 line 32 ($4200)
|
||||
sta GBASH
|
||||
|
||||
|
||||
|
||||
sier_yloop:
|
||||
|
||||
; GBASH is in A here
|
||||
|
||||
; lda GBASH ; update output pointer
|
||||
sta gb_smc+2
|
||||
|
||||
lda GBASL ; adjust so centered
|
||||
clc
|
||||
adc #$1
|
||||
sta gb_smc+1
|
||||
|
||||
|
||||
|
||||
ldx YY ; 3
|
||||
stx add_yy_smc+1 ; 4
|
||||
lda YT_LOOKUP_TABLE,X ; 4
|
||||
sta yy_th_smc+1 ; 4
|
||||
|
||||
; reset XX to 0
|
||||
|
||||
ldx #0 ; XX
|
||||
|
||||
seven_loop:
|
||||
ldy #7
|
||||
|
||||
sier_xloop:
|
||||
|
||||
; want (YY-(XX*T)) & (XX+(YY*T)
|
||||
|
||||
|
||||
; SAVED = XX+(Y*T)
|
||||
clc ; needed for colors ; 2
|
||||
txa ; XX ; 2
|
||||
yy_th_smc:
|
||||
adc #$dd ; 2
|
||||
sta SAVED ; 3
|
||||
|
||||
lda XT_LOOKUP_TABLE,X ; ~(XX*T) ; 4
|
||||
; calc (YY-XX*T)
|
||||
sec ; 2
|
||||
add_yy_smc:
|
||||
adc #$dd ; 2
|
||||
|
||||
; want (YY-(XX*T)) & (XX+(YY*T)
|
||||
|
||||
and SAVED ; 3
|
||||
;============
|
||||
; 20
|
||||
|
||||
clc ; 2
|
||||
beq black ; 2/3
|
||||
white:
|
||||
sec ; 2
|
||||
black:
|
||||
;=====
|
||||
; 5/6
|
||||
|
||||
|
||||
ror NEXTCOL ; rotate in next bit ; 5
|
||||
|
||||
inx ; increment x ; 2
|
||||
|
||||
dey ; dec seven count ; 2
|
||||
bne sier_xloop ; 2/3
|
||||
|
||||
;===========================================================
|
||||
|
||||
|
||||
lda NEXTCOL ; sign extend top bit, ; 3
|
||||
cmp #$80 ; matches earlier cool colors ; 2
|
||||
ror ; 2
|
||||
|
||||
gb_smc:
|
||||
sta $4000 ; 4
|
||||
inc gb_smc+1 ; increase GBASL ; 6
|
||||
|
||||
cpx #248 ; 2
|
||||
bcc seven_loop ; 3/2
|
||||
|
||||
|
||||
;=================
|
||||
; total roughly ???
|
||||
; 49152 per inside *80 = 3,145,728
|
||||
; apple II cyles/frame = 17,030
|
||||
; 1FPS = 1,021,800
|
||||
|
||||
|
||||
;==================================
|
||||
|
||||
jsr MOVE_DOWN ; X/Y left alone
|
||||
jsr MOVE_DOWN ; X/Y left alone
|
||||
; returns with GBASH in A
|
||||
|
||||
inc YY ;
|
||||
inc YY ; repeat until YY=128
|
||||
bpl sier_yloop
|
||||
|
||||
;flip_pages:
|
||||
; TODO if frame rate ever gets fast enough
|
||||
|
||||
jmp sier_outer ; branch always
|
||||
|
||||
|
||||
; $386, want to be at $3F5
|
||||
; load at $36F???
|
||||
|
||||
; jmp sier
|
||||
Loading…
x
Reference in New Issue
Block a user