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72 Commits

Author SHA1 Message Date
Ross Thompson
89aa57e25e Possibly much better branch predictor implemention. 
The complexity is significantly reduced.
 2023-02-19 00:17:37 -06:00
Ross Thompson
9f997eb5d0 Minor fix. 2023-02-18 23:55:46 -06:00
David Harris
92d4acf118 Removed unused PredInstrClassE register from bpred 2023-02-18 05:59:25 -08:00
Ross Thompson
2661ec97d8 Fixed global history predictor. 2023-02-17 16:05:48 -06:00
Ross Thompson
e0a8974c7d Fixed a branch predictor performance issue. 2023-02-17 15:37:03 -06:00
Ross Thompson
3398c5156b Fixed bug with branch predictor. 2023-02-17 10:57:50 -06:00
Ross Thompson
911023f441 Merge branch 'main' of github.com:ross144/cvw 2023-02-13 18:54:07 -06:00
Ross Thompson
fc3baa6846 Updated gshare (no speculation) to have better performance. 2023-02-13 18:52:52 -06:00
Ross Thompson
f3c8c6e60a More fixeds to global history. 2023-02-13 18:08:51 -06:00
Ross Thompson
c18ac35332 Created copy of gshare. I think there may be a simpler implementation. 2023-02-13 17:29:51 -06:00
Ross Thompson
10b45ed6c7 Further branch predictor improvements. 2023-02-13 17:23:56 -06:00
Ross Thompson
1cfdd201a5 Partial improvement. 2023-02-13 17:10:24 -06:00
Ross Thompson
0165fd54b4 Hacked commit. Fixes the gshare bugs introduced last week. 
Need to recover the good changes in the next commit.
 2023-02-13 16:14:17 -06:00
Ross Thompson
716fbca2b1 Partial fix for gshare bugs from the last two weeks. 2023-02-13 11:57:25 -06:00
Ross Thompson
51158e94ba Removed another bit from btb class. 2023-02-12 11:33:43 -06:00
Ross Thompson
91fc883f6a More simplifications to the BP. 2023-02-10 17:09:35 -06:00
Ross Thompson
6fbca64eb7 Experimental branch prediction optimization. 2023-02-10 15:45:56 -06:00
Ross Thompson
ca0eb5a591 Modified branch predictor to use InstrValidE and InstrValidD rather than the more complex InstrClassE | WrongClassE logic. 2023-02-10 10:33:10 -06:00
Ross Thompson
2d7749db7f Updated globalhistory predictor. 2023-02-09 14:48:02 -06:00
Ross Thompson
962c018991 Simplified branch predictor. 2023-02-08 18:24:38 -06:00
Ross Thompson
0678f3f2b7 Branch predictor cleanup. 2023-02-07 14:01:59 -06:00
David Harris
78eb90715c Removed pipelined level of hierarchy 2023-02-02 14:14:11 -08:00