13 Added animation tag
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12 replaced http://codegolf.stackexchange.com/ with https://codegolf.stackexchange.com/
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The opcode is a hexadecimal digit which specifies the Universal Binary Function CodeUniversal 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

11 remove boolean and nesting-level fields.
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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
10 add example using sequence field
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9 image of simple example
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8 remove banners
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7 add blank nesting level to example
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6 updated boolean connectors, blank sequence numbers, range of x coords
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    Tweeted twitter.com/#!/StackCodeGolf/status/467287731274780672
5 example encoded figure
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4 specify y direction
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3 added 89 characters in body
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2 deleted 10 characters in body
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1
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