The opcode is a hexadecimal digit which specifies the Universal Binary Function Code Universal Binary Function Code which is used as a rasterop. The argument is 0 or 1. The raster operation performed is
The opcode is a hexadecimal digit which specifies the Universal Binary Function Code which is used as a rasterop. The argument is 0 or 1. The raster operation performed is
The opcode is a hexadecimal digit which specifies the Universal Binary Function Code which is used as a rasterop. The argument is 0 or 1. The raster operation performed is
BNSSSSYYxxXXOA
B: boolean connector: blank, A (and), O (or)
N: boolean nesting levelSSSSYYxxXXOA
SSSS: 4 digit sequence no. may be padded by blanks or all blank
YY: the y coordinate affected by this line (descending, top is 0, bottom is m-1)
xx: the starting x coordinate
XX: the ending x coordinate
O: hexadecimal opcode
A: argument (0 or 1)
The Boolean connector line allows chaining of multiple statements as a logical unit. Chained statements must all have the same sequence number. The "result" of each line, for the purpose of expression-chaining is true if any pixels were altered by the line. Boolean connectors are governed by the Nesting Level field. Within the same nesting level, OR has higher precedence than AND. So, the chain of statements
0000 0 1 100
A 0000 0 2 200
O 0000 0 3 300
A10000 0 4 400
will set the pixels 0,1 to 0,4 according to the parenthesized expression
(0,1) && ((0,2) || ((0,3) && (0,4)) )
since the statements set the pixel to zero unconditionally, the pixel is changed only if it is one initially.
0000 0 010F1
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
100 016F0
101 016F0
102 016F0
103 016F0
104 016F0
105 016F0
106 016F0
107 016F0
108 016F0
109 016F0
110 016F0
111 016F0
112 016F0
113 016F0
114 016F0
115 016F0
200020261
2 0 6 661
2 1 3 561
2 2 3 461
2 3 3 661
2 4 4 461
2 5 0 361
2 5 5 861
2 6 3 361
2 6 5 561
2 8 3 561
2 9 3 361
2 9 5 561
210 3 361
210 5 561
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
300020261
3 0 6 661
3 1 3 561
3 2 3 461
3 3 3 661
3 4 4 461
3 5 0 361
3 5 5 861
3 6 3 361
3 6 5 561
3 8 3 561
3 9 3 361
3 9 5 561
310 3 361
310 5 561
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
BNSSSSYYxxXXOA
B: boolean connector: blank, A (and), O (or)
N: boolean nesting level
SSSS: 4 digit sequence no. may be padded by blanks or all blank
YY: the y coordinate affected by this line (descending, top is 0, bottom is m-1)
xx: the starting x coordinate
XX: the ending x coordinate
O: hexadecimal opcode
A: argument (0 or 1)
The Boolean connector line allows chaining of multiple statements as a logical unit. Chained statements must all have the same sequence number. The "result" of each line, for the purpose of expression-chaining is true if any pixels were altered by the line. Boolean connectors are governed by the Nesting Level field. Within the same nesting level, OR has higher precedence than AND. So, the chain of statements
0000 0 1 100
A 0000 0 2 200
O 0000 0 3 300
A10000 0 4 400
will set the pixels 0,1 to 0,4 according to the parenthesized expression
(0,1) && ((0,2) || ((0,3) && (0,4)) )
since the statements set the pixel to zero unconditionally, the pixel is changed only if it is one initially.
0000 0 010F1
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
100 016F0
101 016F0
102 016F0
103 016F0
104 016F0
105 016F0
106 016F0
107 016F0
108 016F0
109 016F0
110 016F0
111 016F0
112 016F0
113 016F0
114 016F0
115 016F0
200020261
2 0 6 661
2 1 3 561
2 2 3 461
2 3 3 661
2 4 4 461
2 5 0 361
2 5 5 861
2 6 3 361
2 6 5 561
2 8 3 561
2 9 3 361
2 9 5 561
210 3 361
210 5 561
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
300020261
3 0 6 661
3 1 3 561
3 2 3 461
3 3 3 661
3 4 4 461
3 5 0 361
3 5 5 861
3 6 3 361
3 6 5 561
3 8 3 561
3 9 3 361
3 9 5 561
310 3 361
310 5 561
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
SSSSYYxxXXOA
SSSS: 4 digit sequence no. may be padded by blanks or all blank
YY: the y coordinate affected by this line (descending, top is 0, bottom is m-1)
xx: the starting x coordinate
XX: the ending x coordinate
O: hexadecimal opcode
A: argument (0 or 1)
0000 0 010F1
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
100 016F0
101 016F0
102 016F0
103 016F0
104 016F0
105 016F0
106 016F0
107 016F0
108 016F0
109 016F0
110 016F0
111 016F0
112 016F0
113 016F0
114 016F0
115 016F0
200020261
2 0 6 661
2 1 3 561
2 2 3 461
2 3 3 661
2 4 4 461
2 5 0 361
2 5 5 861
2 6 3 361
2 6 5 561
2 8 3 561
2 9 3 361
2 9 5 561
210 3 361
210 5 561
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
300020261
3 0 6 661
3 1 3 561
3 2 3 461
3 3 3 661
3 4 4 461
3 5 0 361
3 5 5 861
3 6 3 361
3 6 5 561
3 8 3 561
3 9 3 361
3 9 5 561
310 3 361
310 5 561
00020261
0 6 661
1 3 561
2 3 461
3 3 661
4 4 461
5 0 361
5 5 861
6 3 361
6 5 561
8 3 561
9 3 361
9 5 561
10 3 361
10 5 561
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