Changeset 2111 for trunk/symbol_table/single_logbase2.py
 Timestamp:
 May 16, 2012, 4:26:34 PM (7 years ago)
 File:

 1 edited
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trunk/symbol_table/single_logbase2.py
r2106 r2111 1 import bitutil as pablo 2 3 class Groups(): 4 starts = 0 5 follows = 0 6 follows_1 = 0 7 follows_2 = 0 8 follows_4 = 0 9 follows_8 = 0 10 follows_16 = 0 11 follows_0 = 0 12 13 def Gen_lgth_groups(groups): 14 15 starts = groups.starts 16 remaining_follows = groups.follows 17 18 # Group symbols of length 1 19 starts_1 = pablo.Advance(starts) 20 groups.follows_1 = starts_1 & remaining_follows 21 remaining_follows = remaining_follows & ~groups.follows_1 22 23 # Group symbols of length 2 24 starts_2 = pablo.Advance(starts_1) 25 groups.follows_2 = starts_2 & remaining_follows 26 remaining_follows = remaining_follows & ~groups.follows_2 27 28 # Group symbols of length 3 to 4 29 temp = starts_1  starts_2 30 temp32 = pablo.Advance32(temp) 31 #starts_3_to_4 = pablo.Advance(pablo.Advance(temp)) 32 starts_3_to_4 = interpose32 (temp, temp32, 2) 33 groups.follows_4 = starts_3_to_4 & remaining_follows 34 remaining_follows = remaining_follows & ~groups.follows_4
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