1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
;; dmsc
;;
;; PostPosted: Thu Dec 13, 2007 11:57 pm Post subject: Dragon curve
;; fractal
;;
;;
;; Hi!
;;
;; This draws the dragon curve fractal (really a "twin dragon"):
lda #0
sta $0
lop:
lda $0
sta $1
lda #3
sta $6
lda #232
sta $5
ldx #0
lpN:
lsr $1
bcc nos
lda $5
clc
adc tL,x
sta $5
lda $6
adc tH,x
sta $6
nos:
inx
lda $1
bne lpN
inx
txa
ldy #0
sta ($5),y
inc $0
bne lop
rts
tL:
dcb 32, 31, 254, 190, 128, 132, 8, 8
tH:
dcb 0, 0, 255, 255, 255, 255, 0, 1
|
