| # Feed this file to script/make-artificial.go |
| |
| # This modifies abraca.txt.bz2.make-artificial.txt to produce the same |
| # decompressed output, "abraca", but in a more elaborate way. The Huffman codes |
| # here have the full 258 symbols instead of just 6. |
| |
| make bzip2 |
| |
| # Bitslices (a) ..= (g) |
| bits 16 0x425A |
| bits 8 0x68 |
| bits 8 0x39 |
| bits 48 0x314159265359 |
| bits 32 0x76A70995 |
| bits 1 0x0 |
| bits 24 0x000001 |
| |
| # Bitslices (h) ..= (j) |
| bits 16 0xFFFF |
| repeat 16 [ |
| bits 16 0xFFFF |
| ] |
| |
| # Bitslices (k) ..= (m) |
| bits 3 0x2 |
| bits 15 0x0001 |
| bits 1 0x0 |
| |
| # Bitslices (n) ..= (o) |
| # |
| # Both Huffman codes have 258 symbols: 254 × 8-bit symbols and then 4 × 9-bit |
| # symbols. |
| # |
| # For small XYZ (where XYZ < 253), the mXYZ symbol's bitstring is (XYZ+1) in |
| # binary. For example, the m099 symbol's bitstring is "01100100", because the |
| # binary representation of 0d099+1 = 0d100 = 0x64 = 0b01100100. |
| # |
| # RUNA is the 8-bit bitstring "00000000". |
| # RUNB is the 8-bit bitstring "00000001". |
| # m001 is the 8-bit bitstring "00000010". |
| # m002 is the 8-bit bitstring "00000011". |
| # m003 is the 8-bit bitstring "00000100". |
| # etc |
| # m250 is the 8-bit bitstring "11111011". |
| # m251 is the 8-bit bitstring "11111100". |
| # m252 is the 8-bit bitstring "11111101". |
| # m253 is the 9-bit bitstring "111111100". |
| # m254 is the 9-bit bitstring "111111101". |
| # m255 is the 9-bit bitstring "111111110". |
| # EOB is the 9-bit bitstring "111111111". |
| repeat 2 [ |
| bits 5 0x08 |
| repeat 254 [ |
| bits 1 0x0 |
| ] |
| bits 3 0x4 |
| bits 1 0x0 |
| bits 1 0x0 |
| bits 1 0x0 |
| ] |
| |
| # Bitslice (p) |
| # |
| # There are 7 symbols. |
| # Order = [0x00, 0x01, 0x02, 0x03, ... 0xFF] m099 picks 'c'. 0d099+1 = 0x64. |
| # Order = ['c', 0x00, 0x01, 0x02, ... 0xFF] m098 picks 'a'. 0d098+1 = 0x63. |
| # Order = ['a', 'c', 0x00, 0x01, ... 0xFF] m114 picks 'r'. 0d114+1 = 0x73. |
| # Order = ['r', 'a', 'c', 0x00, ... 0xFF] m001 picks 'a'. 0d001+1 = 0x02. |
| # Order = ['a', 'r', 'c', 0x00, ... 0xFF] RUNA picks 'a'. |
| # Order = ['a', 'r', 'c', 0x00, ... 0xFF] m100 picks 'b'. 0d100+1 = 0x65. |
| # Order = ['b', 'a', 'r', 'c', ... 0xFF] EOB. |
| bits 8 0x64 |
| bits 8 0x63 |
| bits 8 0x73 |
| bits 8 0x02 |
| bits 8 0x00 |
| bits 8 0x65 |
| bits 9 0x1FF |
| |
| # Bitslices (q) ..= (s) |
| bits 48 0x177245385090 |
| bits 32 0x76A70995 |
| bits 1 0x0 |
