1 ! Copyright (C) 2009 Alaric Snell-Pym
2 ! See http://factorcode.org/license.txt for BSD license.
4 USING: checksums classes.singleton kernel math math.ranges
5 math.vectors sequences ;
22 CONSTANT: fnv1-32-prime 16777619
23 CONSTANT: fnv1-64-prime 1099511628211
24 CONSTANT: fnv1-128-prime 309485009821345068724781371
25 CONSTANT: fnv1-256-prime 374144419156711147060143317175368453031918731002211
26 CONSTANT: fnv1-512-prime 35835915874844867368919076489095108449946327955754392558399825615420669938882575126094039892345713852759
27 CONSTANT: fnv1-1024-prime 5016456510113118655434598811035278955030765345404790744303017523831112055108147451509157692220295382716162651878526895249385292291816524375083746691371804094271873160484737966720260389217684476157468082573
29 CONSTANT: fnv1-32-mod HEX: ffffffff
30 CONSTANT: fnv1-64-mod HEX: ffffffffffffffff
31 CONSTANT: fnv1-128-mod HEX: ffffffffffffffffffffffffffffffff
32 CONSTANT: fnv1-256-mod HEX: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
33 CONSTANT: fnv1-512-mod HEX: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
34 CONSTANT: fnv1-1024-mod HEX: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
36 CONSTANT: fnv1-32-basis HEX: 811c9dc5
37 CONSTANT: fnv1-64-basis HEX: cbf29ce484222325
38 CONSTANT: fnv1-128-basis HEX: 6c62272e07bb014262b821756295c58d
39 CONSTANT: fnv1-256-basis HEX: dd268dbcaac550362d98c384c4e576ccc8b1536847b6bbb31023b4c8caee0535
40 CONSTANT: fnv1-512-basis HEX: b86db0b1171f4416dca1e50f309990acac87d059c90000000000000000000d21e948f68a34c192f62ea79bc942dbe7ce182036415f56e34bac982aac4afe9fd9
41 CONSTANT: fnv1-1024-basis HEX: 5f7a76758ecc4d32e56d5a591028b74b29fc4223fdada16c3bf34eda3674da9a21d9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004c6d7eb6e73802734510a555f256cc005ae556bde8cc9c6a93b21aff4b16c71ee90b3
43 M: fnv1-32 checksum-bytes ( bytes checksum -- value )
46 [ swap fnv1-32-prime * bitxor fnv1-32-mod bitand ] each ;
48 M: fnv1a-32 checksum-bytes ( bytes checksum -- value )
51 [ bitxor fnv1-32-prime * fnv1-32-mod bitand ] each ;
54 M: fnv1-64 checksum-bytes ( bytes checksum -- value )
57 [ swap fnv1-64-prime * bitxor fnv1-64-mod bitand ] each ;
59 M: fnv1a-64 checksum-bytes ( bytes checksum -- value )
62 [ bitxor fnv1-64-prime * fnv1-64-mod bitand ] each ;
65 M: fnv1-128 checksum-bytes ( bytes checksum -- value )
68 [ swap fnv1-128-prime * bitxor fnv1-128-mod bitand ] each ;
70 M: fnv1a-128 checksum-bytes ( bytes checksum -- value )
73 [ bitxor fnv1-128-prime * fnv1-128-mod bitand ] each ;
76 M: fnv1-256 checksum-bytes ( bytes checksum -- value )
79 [ swap fnv1-256-prime * bitxor fnv1-256-mod bitand ] each ;
81 M: fnv1a-256 checksum-bytes ( bytes checksum -- value )
84 [ bitxor fnv1-256-prime * fnv1-256-mod bitand ] each ;
87 M: fnv1-512 checksum-bytes ( bytes checksum -- value )
90 [ swap fnv1-512-prime * bitxor fnv1-512-mod bitand ] each ;
92 M: fnv1a-512 checksum-bytes ( bytes checksum -- value )
95 [ bitxor fnv1-512-prime * fnv1-512-mod bitand ] each ;
98 M: fnv1-1024 checksum-bytes ( bytes checksum -- value )
101 [ swap fnv1-1024-prime * bitxor fnv1-1024-mod bitand ] each ;
103 M: fnv1a-1024 checksum-bytes ( bytes checksum -- value )
106 [ bitxor fnv1-1024-prime * fnv1-1024-mod bitand ] each ;