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hgr: sier: more or less working

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This commit is contained in:
Vince Weaver 2021-04-13 01:01:06 -04:00
parent 4d7374674e
commit c8f7bc5982
5 changed files with 83 additions and 53 deletions
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8
basic/appleiibot/Makefile
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@ -15,7 +15,7 @@ appleiibot.dsk: E2.BAS FLAME.BAS FLAME2.BAS HELLO \
FASTAR2.BAS BIN.BAS FALLING.BAS SNOW.BAS XMAS.BAS AN3.BAS PLASMA.BAS \
C64.BAS SIERPINSKI.BAS FAKES.BAS SIER.BAS DROPS.BAS RR.BAS RR_HGR.BAS \
COMBO.BAS WIRES.BAS PATTERN.BAS BALL.BAS LINES.BAS MOD9.BAS \
XOR_ZOOM.BAS MOD9_HGR.BAS
XOR_ZOOM.BAS MOD9_HGR.BAS SIER_HGR.BAS
# cp $(EMPTY_DISK)/empty.dsk appleiibot.dsk
cp empty.dsk appleiibot.dsk
$(DOS33) -y appleiibot.dsk BSAVE -a 0x0300 LOAD
@ -75,6 +75,7 @@ appleiibot.dsk: E2.BAS FLAME.BAS FLAME2.BAS HELLO \
$(DOS33) -y appleiibot.dsk SAVE A MOD9.BAS
$(DOS33) -y appleiibot.dsk SAVE A XOR_ZOOM.BAS
$(DOS33) -y appleiibot.dsk SAVE A MOD9_HGR.BAS
$(DOS33) -y appleiibot.dsk SAVE A SIER_HGR.BAS
####
@ -172,6 +173,11 @@ MOD9_HGR.BAS: mod9_hgr.bas
####
SIER_HGR.BAS: sier_hgr.bas
$(TOKENIZE) < sier_hgr.bas > SIER_HGR.BAS
####
XOR_ZOOM.BAS: xor_zoom.bas
$(TOKENIZE) < xor_zoom.bas > XOR_ZOOM.BAS

2
basic/appleiibot/sier_hgr.bas Normal file
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@ -0,0 +1,2 @@
1FORI=0TO133:POKE1013+I,4*PEEK(2126+I)-192+(PEEK(2260+I/3)-35)/4^(I-INT(I/3)*3):NEXT
2&",clLnQfX@J8Z'O9P.QhPnQn6TmIjPnUmInQnS/4;nW04j`iYfH0PoT&goh91OlS>0_+3S8/X$U10QJZNo_049Ig6o6k0>FmjRdjRlbJIS(>kG1hbQe40mPG1W96E/S?/in4^;PS8I@HE=%884)4@#3H(M1M67FS;X$70'1#@;C%S30,8E%'

4
graphics/hgr/tiny_triangles/Makefile
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@ -17,7 +17,7 @@ triangles.dsk: HELLO TINY_TRIANGLES XOR MOD9 MOD9_64 WRITING MOVE_RIGHT \
$(DOS33) -y triangles.dsk BSAVE -a 0x300 MOD9_64
$(DOS33) -y triangles.dsk BSAVE -a 0x300 WRITING
$(DOS33) -y triangles.dsk BSAVE -a 0x300 MOVE_RIGHT
$(DOS33) -y triangles.dsk BSAVE -a 0x300 SIER_HGR
$(DOS33) -y triangles.dsk BSAVE -a 0x3F5 SIER_HGR
$(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
@ -55,7 +55,7 @@ mod9.o: mod9.s
###
SIER_HGR: sier_hgr.o
ld65 -o SIER_HGR sier_hgr.o -C $(LINKER_SCRIPTS)/apple2_300.inc
ld65 -o SIER_HGR sier_hgr.o -C $(LINKER_SCRIPTS)/apple2_3f5.inc
sier_hgr.o: sier_hgr.s
ca65 -o sier_hgr.o sier_hgr.s -l sier_hgr.lst

12
graphics/hgr/tiny_triangles/apple2_36f.inc Normal file
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@ -0,0 +1,12 @@
MEMORY {
ZP: start = $00, size = $1A, type = rw;
RAM: start = $36F, size = $8E00, file = %O;
}
SEGMENTS {
CODE: load = RAM, type = ro, align = $1;
RODATA: load = RAM, type = ro;
DATA: load = RAM, type = rw;
BSS: load = RAM, type = bss, define = yes;
ZEROPAGE: load = ZP, type = zp;
}

110
graphics/hgr/tiny_triangles/sier_hgr.s
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@ -21,7 +21,8 @@
; 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
@ -85,15 +86,14 @@ sier:
sta T_H
sier_outer:
lda #$40 ; start on page2 ($4000)
lda #$42 ; start on page2 line 32 ($4200)
sta GBASH
; lda #$7
; sta SEVEN
lda #$1 ; center
sta GBASL
ldx #0 ; get X 0 for later
stx YY ; YY starts at 0
stx GBASL ; GBASL is $00
; create XX_T lookup table
; note, same as YY_T lookup table?
@ -104,7 +104,7 @@ sier_outer:
; calc XX*T
; only really care about XX_TH
xt_table_loop:
clc
clc ; 2
lda XX_TL ; 3
tl_smc:
adc T_L ; 2
@ -120,24 +120,35 @@ th_smc:
bne xt_table_loop ; 3/2
; inc T
; clc
lda T_L
speed_smc:
adc #2
sta T_L
bcc no_carry
inc T_H
no_carry:
; speed up the zoom as it goes
inc speed_smc+1
sier_yloop:
lda #$C0 ; 192 reset hmask at begin of line
sta HGR_HMASK
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
ldy #0 ; y is x/7
ldx #0 ; XX
seven_loop:
lda #7
sta SEVEN
ldy #7
sier_xloop:
@ -145,55 +156,57 @@ sier_xloop:
; SAVED = XX+(Y*T)
; clc
clc ; needed for colors ; 2
txa ; XX ; 2
yy_th_smc:
adc #00 ; 2
adc #$dd ; 2
sta SAVED ; 3
lda XT_LOOKUP_TABLE,X ; ~(XX*T) ; 4
; calc (YY-XX*T)
sec ; 2
adc YY ; 3
add_yy_smc:
adc #$dd ; 2
; want (YY-(XX*T)) & (XX+(YY*T)
and SAVED ; 3
;============
; 19
; 20
; and #$f8
clc ; 2
beq black ; 2/3
white:
sec ; 2
black:
;=====
; 4?
; 5/6
ror NEXTCOL ; 5
inx
ror NEXTCOL ; rotate in next bit ; 5
dec SEVEN
bne sier_xloop
inx ; increment x ; 2
lda NEXTCOL ; sign extend top bit,
cmp #$80 ; matches earlier cool colors
ror
dey ; dec seven count ; 2
bne sier_xloop ; 2/3
; lda #$7f
;===========================================================
sta (GBASL),Y ; 6
iny ; 2
cpy #36
bne seven_loop ; 3/2
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 19+4+19+16+5 = 63
; total roughly ???
; 49152 per inside *80 = 3,145,728
; apple II cyles/frame = 17,030
; 1FPS = 1,021,800
@ -202,30 +215,27 @@ black:
;==================================
jsr MOVE_DOWN ; X/Y left alone
; returns with GBASH in A
inc YY ; repeat until Y=192
ldy YY
cpy #192
bne sier_yloop
; lda GBASH ; update output pointer
sta gb_smc+2
lda GBASL ; adjust so centered
clc
adc #$1
sta gb_smc+1
; inc T
; clc
lda T_L
blah_smc:
adc #1
sta T_L
bcc no_carry
inc T_H
no_carry:
; speed up the zoom as it goes
inc blah_smc+1
inc YY ; repeat until YY=128
bpl sier_yloop
;flip_pages:
; TODO if frame rate ever gets fast enough
jmp sier_outer ; what can we branch on?
bmi sier_outer ; branch always
; $386, want to be at $3F5
; load at $36F???
; jmp sier