� >Anti_aliaC
� (c) JAN VLIETINCK
� vlietin@intec.rug.ac.be

� 13+128:�13
	� �:�
(
� Q% 8000
2Q%=16*(Q%�16)+28
<
F� DITABLE 1024*4
PP%=DITABLE+4
Z� I=1 � 1024
d
[OPT 0
nEQUD (2^20/I)
x]
��
�
�� CTABLE 8
�
P%=CTABLE
�
[OPT 0
�EQUB %11111111
�EQUB %11111110
�EQUB %11111101
�EQUB %11111100
�EQUB %11010011
�EQUB %11010010
�EQUB %11010001
�EQUB %11010000
�;EQUB %11010000

]



EX1=0:Y1=1:X2=2:Y2=3:XL=4:XR=5:YB=6:YT=7:K1=8:K2=9:DT=10:S=11:T=12

"

,&LL=0:RR=1:A=2:B=3:C=4:O=5:D=6:CT=7

6� P=0 � 2 � 2

@	P%=Q%

J
[OPT P

TN\-------------------------------------------------------------------------

^.screen1 EQUD 148:EQUD -1

h.screen EQUD 0

r.CTABLED EQUD CTABLE

|

�(.BOX EQUD 1:EQUD 318:EQUD 1:EQUD 254

�.DITABLED EQUD DITABLE

�.set

�:ADR R0,screen1:ADR R1,screen:SWI "OS_ReadVduVariables"

�MOV PC,R14

�N\-------------------------------------------------------------------------

�

�>� Anti-aliased lines, with faster then Sutherland clipping

�8� Parameters  (X1,Y1) => (R0,R1); (X2,Y2) => (R2,R3)

�	.line

�
ADR T,BOX
LDMIA T,{XL,XR,YB,YT,DT}
CMP   XL,X1
CMPLE X1,XR
&CMPLE YB,Y1
0CMPLE Y1,YT
:CMPLE XL,X2
DCMPLE X2,XR
NCMPLE YB,Y2
XCMPLE Y2,YT
bBLE inside
l
v
CMP X1,X2
�%MOVGT T,X1:MOVGT X1,X2:MOVGT X2,T
�%MOVGT T,Y1:MOVGT Y1,Y2:MOVGT Y2,T
�CMP X2,XL:MOVLT PC,R14
�CMP X1,XR:MOVGT PC,R14
�#SUB T,X2,X1:LDR S,[DT,T,LSL #2]
�)SUB T,Y2,Y1:MUL S,T,S:MOV S,S,ASR #10
�ICMP X1,XL:SUBLT T,XL,X1:MULLT T,S,T:ADDLT Y1,Y1,T,ASR #10:MOVLT X1,XL
�ICMP X2,XR:SUBGT T,XR,X2:MULGT T,S,T:ADDGT Y2,Y2,T,ASR #10:MOVGT X2,XR
�
�
CMP Y1,Y2
�%MOVGT T,X1:MOVGT X1,X2:MOVGT X2,T
�%MOVGT T,Y1:MOVGT Y1,Y2:MOVGT Y2,T
�CMP Y2,YB:MOVLT PC,R14
CMP Y1,YT:MOVGT PC,R14
#SUB T,Y2,Y1:LDR S,[DT,T,LSL #2]
)SUB T,X2,X1:MUL S,T,S:MOV S,S,ASR #10
 ICMP Y1,YB:SUBLT T,YB,Y1:MULLT T,S,T:ADDLT X1,X1,T,ASR #10:MOVLT Y1,YB
*ICMP Y2,YT:SUBGT T,YT,Y2:MULGT T,S,T:ADDGT X2,X2,T,ASR #10:MOVGT Y2,YT
4
>+.inside    \ Line completely inside box
HADR T,screen
RLDMIA T,{O,CT}
\RSB T,Y1,#255
fADD T,T,T,LSL #2
pADD T,X1,T,LSL #6
z
ADD O,O,T
�SUB A,X2,X1
�SUB B,Y2,Y1
�
MOV LL,#1
�MOV RR,#320
�RSB RR,RR,#0
�CMP A,#0
� RSBLT A,A,#0
� RSBLT LL,LL,#0
�CMP B,#0
� RSBLT B,B,#0
� RSBLT RR,RR,#0
�CMP A,B
� MOVLT T,A
 MOVLT A,B
 MOVLT B,T
 MOVLT T,LL
$ MOVLT LL,RR
. MOVLT RR,T
8STRB C,[O]
BCMP A,#0
L �Q PC,R14
VLDR T,[DT,A,LSL #2]
`
MUL B,T,B
jMOV D,#1<<20
t.line_loop
~SUBS D,D,B
�ADDLE D,D,#1<<20
�ADDLE O,O,RR
�RSB  T,D,#1<<20
�LDRB C,[CT,T,LSR #17]
�STRB C,[O,LL]!
�LDRB C,[CT,D,LSR #17]
�STRB C,[O,RR]
�SUBS A,A,#1
�BNE line_loop
�MOV PC,R14
�D\---------------------------------------------------------------
�]
�

*POINTER
ȗ �:ȗ � 640,512
M=2
(A%=160:B%=128
2
<� DH=0 � 30000 � 0.9
Fș "OS_Byte",&70,M:�
PALIAS=DH � 32
Z@� ALIAS � � "WITH anti-aliasing" � � "WITHOUT anti-aliasing"
d	� set
nȗ X%,Y%,Z%
xA%=X%-640+160
�B%=Y%-512+128
�� H=0 � 350 � 10
�
R=�(H+DH)
�C%=100*�R+X%-640+160
�D%=100*�R+Y%-512+128
�,� ALIAS � � line � � 4*A%,4*B%,4*C%,4*D%
��
� Ȗ:ș "OS_Byte",&71,M:M=M �3
��
�
�
�*POINTER
�ȗ �:ȗ � 800,512
�
ș "OS_Byte",&70,M:�
ȗ X%,Y%,Z%
"C%=X%/4
,D%=Y%/4
6	� set
@
� line
J!Ȗ:ș "OS_Byte",&71,M:M=M � 3
T� 0
^�
�

00000000  0d 00 0a 11 f4 20 3e 41  6e 74 69 5f 61 6c 69 61  |..... >Anti_alia|
00000010  43 0d 00 14 17 f4 20 28  63 29 20 4a 41 4e 20 56  |C..... (c) JAN V|
00000020  4c 49 45 54 49 4e 43 4b  0d 00 15 1d f4 20 76 6c  |LIETINCK..... vl|
00000030  69 65 74 69 6e 40 69 6e  74 65 63 2e 72 75 67 2e  |ietin@intec.rug.|
00000040  61 63 2e 62 65 0d 00 16  04 0d 00 1e 10 eb 20 31  |ac.be......... 1|
00000050  33 2b 31 32 38 3a eb 31  33 0d 00 1f 09 ee 20 85  |3+128:.13..... .|
00000060  3a e0 0d 00 28 0d de 20  51 25 20 38 30 30 30 0d  |:...(.. Q% 8000.|
00000070  00 32 14 51 25 3d 31 36  2a 28 51 25 81 31 36 29  |.2.Q%=16*(Q%.16)|
00000080  2b 32 38 0d 00 3c 04 0d  00 46 14 de 20 44 49 54  |+28..<...F.. DIT|
00000090  41 42 4c 45 20 31 30 32  34 2a 34 0d 00 50 10 50  |ABLE 1024*4..P.P|
000000a0  25 3d 44 49 54 41 42 4c  45 2b 34 0d 00 5a 10 e3  |%=DITABLE+4..Z..|
000000b0  20 49 3d 31 20 b8 20 31  30 32 34 0d 00 64 0a 5b  | I=1 . 1024..d.[|
000000c0  4f 50 54 20 30 0d 00 6e  11 45 51 55 44 20 28 32  |OPT 0..n.EQUD (2|
000000d0  5e 32 30 2f 49 29 0d 00  78 05 5d 0d 00 82 05 ed  |^20/I)..x.].....|
000000e0  0d 00 8c 04 0d 00 96 0e  de 20 43 54 41 42 4c 45  |......... CTABLE|
000000f0  20 38 0d 00 a0 0d 50 25  3d 43 54 41 42 4c 45 0d  | 8....P%=CTABLE.|
00000100  00 aa 0a 5b 4f 50 54 20  30 0d 00 b4 12 45 51 55  |...[OPT 0....EQU|
00000110  42 20 25 31 31 31 31 31  31 31 31 0d 00 be 12 45  |B %11111111....E|
00000120  51 55 42 20 25 31 31 31  31 31 31 31 30 0d 00 c8  |QUB %11111110...|
00000130  12 45 51 55 42 20 25 31  31 31 31 31 31 30 31 0d  |.EQUB %11111101.|
00000140  00 d2 12 45 51 55 42 20  25 31 31 31 31 31 31 30  |...EQUB %1111110|
00000150  30 0d 00 dc 12 45 51 55  42 20 25 31 31 30 31 30  |0....EQUB %11010|
00000160  30 31 31 0d 00 e6 12 45  51 55 42 20 25 31 31 30  |011....EQUB %110|
00000170  31 30 30 31 30 0d 00 f0  12 45 51 55 42 20 25 31  |10010....EQUB %1|
00000180  31 30 31 30 30 30 31 0d  00 f1 12 45 51 55 42 20  |1010001....EQUB |
00000190  25 31 31 30 31 30 30 30  30 0d 00 fa 13 3b 45 51  |%11010000....;EQ|
000001a0  55 42 20 25 31 31 30 31  30 30 30 30 0d 01 04 05  |UB %11010000....|
000001b0  5d 0d 01 0e 04 0d 01 18  45 58 31 3d 30 3a 59 31  |].......EX1=0:Y1|
000001c0  3d 31 3a 58 32 3d 32 3a  59 32 3d 33 3a 58 4c 3d  |=1:X2=2:Y2=3:XL=|
000001d0  34 3a 58 52 3d 35 3a 59  42 3d 36 3a 59 54 3d 37  |4:XR=5:YB=6:YT=7|
000001e0  3a 4b 31 3d 38 3a 4b 32  3d 39 3a 44 54 3d 31 30  |:K1=8:K2=9:DT=10|
000001f0  3a 53 3d 31 31 3a 54 3d  31 32 0d 01 22 04 0d 01  |:S=11:T=12.."...|
00000200  2c 26 4c 4c 3d 30 3a 52  52 3d 31 3a 41 3d 32 3a  |,&LL=0:RR=1:A=2:|
00000210  42 3d 33 3a 43 3d 34 3a  4f 3d 35 3a 44 3d 36 3a  |B=3:C=4:O=5:D=6:|
00000220  43 54 3d 37 0d 01 36 11  e3 20 50 3d 30 20 b8 20  |CT=7..6.. P=0 . |
00000230  32 20 88 20 32 0d 01 40  09 50 25 3d 51 25 0d 01  |2 . 2..@.P%=Q%..|
00000240  4a 0a 5b 4f 50 54 20 50  0d 01 54 4e 5c 2d 2d 2d  |J.[OPT P..TN\---|
00000250  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00000290  2d 2d 2d 2d 2d 2d 0d 01  5e 1d 2e 73 63 72 65 65  |------..^..scree|
000002a0  6e 31 20 45 51 55 44 20  31 34 38 3a 45 51 55 44  |n1 EQUD 148:EQUD|
000002b0  20 2d 31 0d 01 68 12 2e  73 63 72 65 65 6e 20 45  | -1..h..screen E|
000002c0  51 55 44 20 30 0d 01 72  18 2e 43 54 41 42 4c 45  |QUD 0..r..CTABLE|
000002d0  44 20 45 51 55 44 20 43  54 41 42 4c 45 0d 01 7c  |D EQUD CTABLE..||
000002e0  04 0d 01 86 28 2e 42 4f  58 20 45 51 55 44 20 31  |....(.BOX EQUD 1|
000002f0  3a 45 51 55 44 20 33 31  38 3a 45 51 55 44 20 31  |:EQUD 318:EQUD 1|
00000300  3a 45 51 55 44 20 32 35  34 0d 01 90 1a 2e 44 49  |:EQUD 254.....DI|
00000310  54 41 42 4c 45 44 20 45  51 55 44 20 44 49 54 41  |TABLED EQUD DITA|
00000320  42 4c 45 0d 01 9a 08 2e  73 65 74 0d 01 a4 3a 41  |BLE.....set...:A|
00000330  44 52 20 52 30 2c 73 63  72 65 65 6e 31 3a 41 44  |DR R0,screen1:AD|
00000340  52 20 52 31 2c 73 63 72  65 65 6e 3a 53 57 49 20  |R R1,screen:SWI |
00000350  22 4f 53 5f 52 65 61 64  56 64 75 56 61 72 69 61  |"OS_ReadVduVaria|
00000360  62 6c 65 73 22 0d 01 ae  0e 4d 4f 56 20 50 43 2c  |bles"....MOV PC,|
00000370  52 31 34 0d 01 b8 4e 5c  2d 2d 2d 2d 2d 2d 2d 2d  |R14...N\--------|
00000380  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
000003c0  2d 0d 01 c2 04 0d 01 cc  3e f4 20 41 6e 74 69 2d  |-.......>. Anti-|
000003d0  61 6c 69 61 73 65 64 20  6c 69 6e 65 73 2c 20 77  |aliased lines, w|
000003e0  69 74 68 20 66 61 73 74  65 72 20 74 68 65 6e 20  |ith faster then |
000003f0  53 75 74 68 65 72 6c 61  6e 64 20 63 6c 69 70 70  |Sutherland clipp|
00000400  69 6e 67 0d 01 e0 38 f4  20 50 61 72 61 6d 65 74  |ing...8. Paramet|
00000410  65 72 73 20 20 28 58 31  2c 59 31 29 20 3d 3e 20  |ers  (X1,Y1) => |
00000420  28 52 30 2c 52 31 29 3b  20 28 58 32 2c 59 32 29  |(R0,R1); (X2,Y2)|
00000430  20 3d 3e 20 28 52 32 2c  52 33 29 0d 01 f4 09 2e  | => (R2,R3).....|
00000440  6c 69 6e 65 0d 01 fe 0d  41 44 52 20 54 2c 42 4f  |line....ADR T,BO|
00000450  58 0d 02 08 1c 4c 44 4d  49 41 20 54 2c 7b 58 4c  |X....LDMIA T,{XL|
00000460  2c 58 52 2c 59 42 2c 59  54 2c 44 54 7d 0d 02 12  |,XR,YB,YT,DT}...|
00000470  0f 43 4d 50 20 20 20 58  4c 2c 58 31 0d 02 1c 0f  |.CMP   XL,X1....|
00000480  43 4d 50 4c 45 20 58 31  2c 58 52 0d 02 26 0f 43  |CMPLE X1,XR..&.C|
00000490  4d 50 4c 45 20 59 42 2c  59 31 0d 02 30 0f 43 4d  |MPLE YB,Y1..0.CM|
000004a0  50 4c 45 20 59 31 2c 59  54 0d 02 3a 0f 43 4d 50  |PLE Y1,YT..:.CMP|
000004b0  4c 45 20 58 4c 2c 58 32  0d 02 44 0f 43 4d 50 4c  |LE XL,X2..D.CMPL|
000004c0  45 20 58 32 2c 58 52 0d  02 4e 0f 43 4d 50 4c 45  |E X2,XR..N.CMPLE|
000004d0  20 59 42 2c 59 32 0d 02  58 0f 43 4d 50 4c 45 20  | YB,Y2..X.CMPLE |
000004e0  59 32 2c 59 54 0d 02 62  0e 42 4c 45 20 69 6e 73  |Y2,YT..b.BLE ins|
000004f0  69 64 65 0d 02 6c 04 0d  02 76 0d 43 4d 50 20 58  |ide..l...v.CMP X|
00000500  31 2c 58 32 0d 02 80 25  4d 4f 56 47 54 20 54 2c  |1,X2...%MOVGT T,|
00000510  58 31 3a 4d 4f 56 47 54  20 58 31 2c 58 32 3a 4d  |X1:MOVGT X1,X2:M|
00000520  4f 56 47 54 20 58 32 2c  54 0d 02 8a 25 4d 4f 56  |OVGT X2,T...%MOV|
00000530  47 54 20 54 2c 59 31 3a  4d 4f 56 47 54 20 59 31  |GT T,Y1:MOVGT Y1|
00000540  2c 59 32 3a 4d 4f 56 47  54 20 59 32 2c 54 0d 02  |,Y2:MOVGT Y2,T..|
00000550  94 1a 43 4d 50 20 58 32  2c 58 4c 3a 4d 4f 56 4c  |..CMP X2,XL:MOVL|
00000560  54 20 50 43 2c 52 31 34  0d 02 9e 1a 43 4d 50 20  |T PC,R14....CMP |
00000570  58 31 2c 58 52 3a 4d 4f  56 47 54 20 50 43 2c 52  |X1,XR:MOVGT PC,R|
00000580  31 34 0d 02 a8 23 53 55  42 20 54 2c 58 32 2c 58  |14...#SUB T,X2,X|
00000590  31 3a 4c 44 52 20 53 2c  5b 44 54 2c 54 2c 4c 53  |1:LDR S,[DT,T,LS|
000005a0  4c 20 23 32 5d 0d 02 b2  29 53 55 42 20 54 2c 59  |L #2]...)SUB T,Y|
000005b0  32 2c 59 31 3a 4d 55 4c  20 53 2c 54 2c 53 3a 4d  |2,Y1:MUL S,T,S:M|
000005c0  4f 56 20 53 2c 53 2c 41  53 52 20 23 31 30 0d 02  |OV S,S,ASR #10..|
000005d0  bc 49 43 4d 50 20 58 31  2c 58 4c 3a 53 55 42 4c  |.ICMP X1,XL:SUBL|
000005e0  54 20 54 2c 58 4c 2c 58  31 3a 4d 55 4c 4c 54 20  |T T,XL,X1:MULLT |
000005f0  54 2c 53 2c 54 3a 41 44  44 4c 54 20 59 31 2c 59  |T,S,T:ADDLT Y1,Y|
00000600  31 2c 54 2c 41 53 52 20  23 31 30 3a 4d 4f 56 4c  |1,T,ASR #10:MOVL|
00000610  54 20 58 31 2c 58 4c 0d  02 c6 49 43 4d 50 20 58  |T X1,XL...ICMP X|
00000620  32 2c 58 52 3a 53 55 42  47 54 20 54 2c 58 52 2c  |2,XR:SUBGT T,XR,|
00000630  58 32 3a 4d 55 4c 47 54  20 54 2c 53 2c 54 3a 41  |X2:MULGT T,S,T:A|
00000640  44 44 47 54 20 59 32 2c  59 32 2c 54 2c 41 53 52  |DDGT Y2,Y2,T,ASR|
00000650  20 23 31 30 3a 4d 4f 56  47 54 20 58 32 2c 58 52  | #10:MOVGT X2,XR|
00000660  0d 02 d0 04 0d 02 da 0d  43 4d 50 20 59 31 2c 59  |........CMP Y1,Y|
00000670  32 0d 02 e4 25 4d 4f 56  47 54 20 54 2c 58 31 3a  |2...%MOVGT T,X1:|
00000680  4d 4f 56 47 54 20 58 31  2c 58 32 3a 4d 4f 56 47  |MOVGT X1,X2:MOVG|
00000690  54 20 58 32 2c 54 0d 02  ee 25 4d 4f 56 47 54 20  |T X2,T...%MOVGT |
000006a0  54 2c 59 31 3a 4d 4f 56  47 54 20 59 31 2c 59 32  |T,Y1:MOVGT Y1,Y2|
000006b0  3a 4d 4f 56 47 54 20 59  32 2c 54 0d 02 f8 1a 43  |:MOVGT Y2,T....C|
000006c0  4d 50 20 59 32 2c 59 42  3a 4d 4f 56 4c 54 20 50  |MP Y2,YB:MOVLT P|
000006d0  43 2c 52 31 34 0d 03 02  1a 43 4d 50 20 59 31 2c  |C,R14....CMP Y1,|
000006e0  59 54 3a 4d 4f 56 47 54  20 50 43 2c 52 31 34 0d  |YT:MOVGT PC,R14.|
000006f0  03 0c 23 53 55 42 20 54  2c 59 32 2c 59 31 3a 4c  |..#SUB T,Y2,Y1:L|
00000700  44 52 20 53 2c 5b 44 54  2c 54 2c 4c 53 4c 20 23  |DR S,[DT,T,LSL #|
00000710  32 5d 0d 03 16 29 53 55  42 20 54 2c 58 32 2c 58  |2]...)SUB T,X2,X|
00000720  31 3a 4d 55 4c 20 53 2c  54 2c 53 3a 4d 4f 56 20  |1:MUL S,T,S:MOV |
00000730  53 2c 53 2c 41 53 52 20  23 31 30 0d 03 20 49 43  |S,S,ASR #10.. IC|
00000740  4d 50 20 59 31 2c 59 42  3a 53 55 42 4c 54 20 54  |MP Y1,YB:SUBLT T|
00000750  2c 59 42 2c 59 31 3a 4d  55 4c 4c 54 20 54 2c 53  |,YB,Y1:MULLT T,S|
00000760  2c 54 3a 41 44 44 4c 54  20 58 31 2c 58 31 2c 54  |,T:ADDLT X1,X1,T|
00000770  2c 41 53 52 20 23 31 30  3a 4d 4f 56 4c 54 20 59  |,ASR #10:MOVLT Y|
00000780  31 2c 59 42 0d 03 2a 49  43 4d 50 20 59 32 2c 59  |1,YB..*ICMP Y2,Y|
00000790  54 3a 53 55 42 47 54 20  54 2c 59 54 2c 59 32 3a  |T:SUBGT T,YT,Y2:|
000007a0  4d 55 4c 47 54 20 54 2c  53 2c 54 3a 41 44 44 47  |MULGT T,S,T:ADDG|
000007b0  54 20 58 32 2c 58 32 2c  54 2c 41 53 52 20 23 31  |T X2,X2,T,ASR #1|
000007c0  30 3a 4d 4f 56 47 54 20  59 32 2c 59 54 0d 03 34  |0:MOVGT Y2,YT..4|
000007d0  04 0d 03 3e 2b 2e 69 6e  73 69 64 65 20 20 20 20  |...>+.inside    |
000007e0  5c 20 4c 69 6e 65 20 63  6f 6d 70 6c 65 74 65 6c  |\ Line completel|
000007f0  79 20 69 6e 73 69 64 65  20 62 6f 78 0d 03 48 10  |y inside box..H.|
00000800  41 44 52 20 54 2c 73 63  72 65 65 6e 0d 03 52 12  |ADR T,screen..R.|
00000810  4c 44 4d 49 41 20 54 2c  7b 4f 2c 43 54 7d 0d 03  |LDMIA T,{O,CT}..|
00000820  5c 11 52 53 42 20 54 2c  59 31 2c 23 32 35 35 0d  |\.RSB T,Y1,#255.|
00000830  03 66 14 41 44 44 20 54  2c 54 2c 54 2c 4c 53 4c  |.f.ADD T,T,T,LSL|
00000840  20 23 32 0d 03 70 15 41  44 44 20 54 2c 58 31 2c  | #2..p.ADD T,X1,|
00000850  54 2c 4c 53 4c 20 23 36  0d 03 7a 0d 41 44 44 20  |T,LSL #6..z.ADD |
00000860  4f 2c 4f 2c 54 0d 03 84  0f 53 55 42 20 41 2c 58  |O,O,T....SUB A,X|
00000870  32 2c 58 31 0d 03 8e 0f  53 55 42 20 42 2c 59 32  |2,X1....SUB B,Y2|
00000880  2c 59 31 0d 03 98 0d 4d  4f 56 20 4c 4c 2c 23 31  |,Y1....MOV LL,#1|
00000890  0d 03 a2 0f 4d 4f 56 20  52 52 2c 23 33 32 30 0d  |....MOV RR,#320.|
000008a0  03 ac 10 52 53 42 20 52  52 2c 52 52 2c 23 30 0d  |...RSB RR,RR,#0.|
000008b0  03 b6 0c 43 4d 50 20 41  2c 23 30 0d 03 c0 11 20  |...CMP A,#0.... |
000008c0  52 53 42 4c 54 20 41 2c  41 2c 23 30 0d 03 ca 13  |RSBLT A,A,#0....|
000008d0  20 52 53 42 4c 54 20 4c  4c 2c 4c 4c 2c 23 30 0d  | RSBLT LL,LL,#0.|
000008e0  03 d4 0c 43 4d 50 20 42  2c 23 30 0d 03 de 11 20  |...CMP B,#0.... |
000008f0  52 53 42 4c 54 20 42 2c  42 2c 23 30 0d 03 e8 13  |RSBLT B,B,#0....|
00000900  20 52 53 42 4c 54 20 52  52 2c 52 52 2c 23 30 0d  | RSBLT RR,RR,#0.|
00000910  03 f2 0b 43 4d 50 20 41  2c 42 0d 03 fc 0e 20 4d  |...CMP A,B.... M|
00000920  4f 56 4c 54 20 54 2c 41  0d 04 06 0e 20 4d 4f 56  |OVLT T,A.... MOV|
00000930  4c 54 20 41 2c 42 0d 04  10 0e 20 4d 4f 56 4c 54  |LT A,B.... MOVLT|
00000940  20 42 2c 54 0d 04 1a 0f  20 4d 4f 56 4c 54 20 54  | B,T.... MOVLT T|
00000950  2c 4c 4c 0d 04 24 10 20  4d 4f 56 4c 54 20 4c 4c  |,LL..$. MOVLT LL|
00000960  2c 52 52 0d 04 2e 0f 20  4d 4f 56 4c 54 20 52 52  |,RR.... MOVLT RR|
00000970  2c 54 0d 04 38 0e 53 54  52 42 20 43 2c 5b 4f 5d  |,T..8.STRB C,[O]|
00000980  0d 04 42 0c 43 4d 50 20  41 2c 23 30 0d 04 4c 0e  |..B.CMP A,#0..L.|
00000990  20 ec 51 20 50 43 2c 52  31 34 0d 04 56 17 4c 44  | .Q PC,R14..V.LD|
000009a0  52 20 54 2c 5b 44 54 2c  41 2c 4c 53 4c 20 23 32  |R T,[DT,A,LSL #2|
000009b0  5d 0d 04 60 0d 4d 55 4c  20 42 2c 54 2c 42 0d 04  |]..`.MUL B,T,B..|
000009c0  6a 10 4d 4f 56 20 44 2c  23 31 3c 3c 32 30 0d 04  |j.MOV D,#1<<20..|
000009d0  74 0e 2e 6c 69 6e 65 5f  6c 6f 6f 70 0d 04 7e 0e  |t..line_loop..~.|
000009e0  53 55 42 53 20 44 2c 44  2c 42 0d 04 88 14 41 44  |SUBS D,D,B....AD|
000009f0  44 4c 45 20 44 2c 44 2c  23 31 3c 3c 32 30 0d 04  |DLE D,D,#1<<20..|
00000a00  92 10 41 44 44 4c 45 20  4f 2c 4f 2c 52 52 0d 04  |..ADDLE O,O,RR..|
00000a10  9c 13 52 53 42 20 20 54  2c 44 2c 23 31 3c 3c 32  |..RSB  T,D,#1<<2|
00000a20  30 0d 04 a6 19 4c 44 52  42 20 43 2c 5b 43 54 2c  |0....LDRB C,[CT,|
00000a30  54 2c 4c 53 52 20 23 31  37 5d 0d 04 b0 12 53 54  |T,LSR #17]....ST|
00000a40  52 42 20 43 2c 5b 4f 2c  4c 4c 5d 21 0d 04 ba 19  |RB C,[O,LL]!....|
00000a50  4c 44 52 42 20 43 2c 5b  43 54 2c 44 2c 4c 53 52  |LDRB C,[CT,D,LSR|
00000a60  20 23 31 37 5d 0d 04 c4  11 53 54 52 42 20 43 2c  | #17]....STRB C,|
00000a70  5b 4f 2c 52 52 5d 0d 04  ce 0f 53 55 42 53 20 41  |[O,RR]....SUBS A|
00000a80  2c 41 2c 23 31 0d 04 d8  11 42 4e 45 20 6c 69 6e  |,A,#1....BNE lin|
00000a90  65 5f 6c 6f 6f 70 0d 04  e2 0e 4d 4f 56 20 50 43  |e_loop....MOV PC|
00000aa0  2c 52 31 34 0d 04 ec 44  5c 2d 2d 2d 2d 2d 2d 2d  |,R14...D\-------|
00000ab0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00000ae0  2d 2d 2d 2d 2d 2d 2d 2d  0d 04 f6 05 5d 0d 05 00  |--------....]...|
00000af0  05 ed 0d 05 0a 0c 2a 50  4f 49 4e 54 45 52 0d 05  |......*POINTER..|
00000b00  14 15 c8 97 20 ee 3a c8  97 20 b8 20 36 34 30 2c  |.... .:.. . 640,|
00000b10  35 31 32 0d 05 1e 07 4d  3d 32 0d 05 28 11 41 25  |512....M=2..(.A%|
00000b20  3d 31 36 30 3a 42 25 3d  31 32 38 0d 05 32 04 0d  |=160:B%=128..2..|
00000b30  05 3c 18 e3 20 44 48 3d  30 20 b8 20 33 30 30 30  |.<.. DH=0 . 3000|
00000b40  30 20 88 20 30 2e 39 0d  05 46 18 c8 99 20 22 4f  |0 . 0.9..F... "O|
00000b50  53 5f 42 79 74 65 22 2c  26 37 30 2c 4d 3a db 0d  |S_Byte",&70,M:..|
00000b60  05 50 11 41 4c 49 41 53  3d 44 48 20 80 20 33 32  |.P.ALIAS=DH . 32|
00000b70  0d 05 5a 40 e7 20 41 4c  49 41 53 20 8c 20 f1 20  |..Z@. ALIAS . . |
00000b80  22 57 49 54 48 20 61 6e  74 69 2d 61 6c 69 61 73  |"WITH anti-alias|
00000b90  69 6e 67 22 20 8b 20 f1  20 22 57 49 54 48 4f 55  |ing" . . "WITHOU|
00000ba0  54 20 61 6e 74 69 2d 61  6c 69 61 73 69 6e 67 22  |T anti-aliasing"|
00000bb0  0d 05 64 09 d6 20 73 65  74 0d 05 6e 0f c8 97 20  |..d.. set..n... |
00000bc0  58 25 2c 59 25 2c 5a 25  0d 05 78 11 41 25 3d 58  |X%,Y%,Z%..x.A%=X|
00000bd0  25 2d 36 34 30 2b 31 36  30 0d 05 82 11 42 25 3d  |%-640+160....B%=|
00000be0  59 25 2d 35 31 32 2b 31  32 38 0d 05 8c 14 e3 20  |Y%-512+128..... |
00000bf0  48 3d 30 20 b8 20 33 35  30 20 88 20 31 30 0d 05  |H=0 . 350 . 10..|
00000c00  96 0d 52 3d b2 28 48 2b  44 48 29 0d 05 a0 18 43  |..R=.(H+DH)....C|
00000c10  25 3d 31 30 30 2a 9b 52  2b 58 25 2d 36 34 30 2b  |%=100*.R+X%-640+|
00000c20  31 36 30 0d 05 aa 18 44  25 3d 31 30 30 2a b5 52  |160....D%=100*.R|
00000c30  2b 59 25 2d 35 31 32 2b  31 32 38 0d 05 b4 2c e7  |+Y%-512+128...,.|
00000c40  20 41 4c 49 41 53 20 8c  20 d6 20 6c 69 6e 65 20  | ALIAS . . line |
00000c50  8b 20 86 20 34 2a 41 25  2c 34 2a 42 25 2c 34 2a  |. . 4*A%,4*B%,4*|
00000c60  43 25 2c 34 2a 44 25 0d  05 be 05 ed 0d 05 c8 20  |C%,4*D%........ |
00000c70  c8 96 3a c8 99 20 22 4f  53 5f 42 79 74 65 22 2c  |..:.. "OS_Byte",|
00000c80  26 37 31 2c 4d 3a 4d 3d  4d 20 82 33 0d 05 d2 05  |&71,M:M=M .3....|
00000c90  ed 0d 05 dc 04 0d 05 e6  04 0d 05 f0 0c 2a 50 4f  |.............*PO|
00000ca0  49 4e 54 45 52 0d 05 fa  15 c8 97 20 ee 3a c8 97  |INTER...... .:..|
00000cb0  20 b8 20 38 30 30 2c 35  31 32 0d 06 04 05 f5 0d  | . 800,512......|
00000cc0  06 0e 18 c8 99 20 22 4f  53 5f 42 79 74 65 22 2c  |..... "OS_Byte",|
00000cd0  26 37 30 2c 4d 3a db 0d  06 18 0f c8 97 20 58 25  |&70,M:....... X%|
00000ce0  2c 59 25 2c 5a 25 0d 06  22 0b 43 25 3d 58 25 2f  |,Y%,Z%..".C%=X%/|
00000cf0  34 0d 06 2c 0b 44 25 3d  59 25 2f 34 0d 06 36 09  |4..,.D%=Y%/4..6.|
00000d00  d6 20 73 65 74 0d 06 40  0a d6 20 6c 69 6e 65 0d  |. set..@.. line.|
00000d10  06 4a 21 c8 96 3a c8 99  20 22 4f 53 5f 42 79 74  |.J!..:.. "OS_Byt|
00000d20  65 22 2c 26 37 31 2c 4d  3a 4d 3d 4d 20 82 20 33  |e",&71,M:M=M . 3|
00000d30  0d 06 54 07 fd 20 30 0d  06 5e 05 e0 0d ff        |..T.. 0..^....|
00000d3e