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670 Commits

Author SHA1 Message Date
David Harris
5b370bdc0f Added SSTC support for supervisor timer compare, but presently disable support. Reenable for rv32gc and rv64gc after tests pass. 2023-02-16 07:37:12 -08:00
Kevin Kim
921a32faf9 added comments to zbc units 2023-02-15 17:42:32 -08:00
Kevin Kim
50f0262498 zbc configurability and select mux 2023-02-15 17:39:37 -08:00
Kevin Kim
cd13913f07 controller forwards funct7 
- started the bmu controll register
 2023-02-15 17:38:12 -08:00
Kevin Kim
8feeaa5e94 zbc and carry-less multiply work properly 2023-02-15 17:37:09 -08:00
James Stine
a3aeff2703 Update if-then-else for ram items 2023-02-15 18:12:12 -06:00
Kevin Kim
2eb8721843 continued ZBC integration into ALU 2023-02-15 09:35:07 -08:00
Ross Thompson
c6920ab08e Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-02-15 11:29:39 -06:00
Kevin Kim
2a58a86371 added ALUResult Signal 2023-02-15 09:13:10 -08:00
Kevin Kim
27817c5b1d controller passes funct7 from decode to execute 2023-02-14 16:06:10 -08:00
Kevin Kim
857097282c git 2023-02-14 16:03:26 -08:00
Kevin Kim
420a0209dd Merge branch 'tmp' into main 2023-02-14 13:12:57 -08:00
Kevin Kim
7b7957594e removed unncessary stuff 2023-02-14 13:07:03 -08:00
Kevin Kim
1a209aac21 reverted back to I tests working 2023-02-14 13:06:31 -08:00
Kevin Kim
bcea347370 added ALU result select mux for B instructions 2023-02-13 17:38:00 -08:00
Kevin Kim
1364ac2a14 controller handles bclr 2023-02-13 16:57:05 -08:00
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
Kevin Kim
2679f06a00 Shadd instructions pass tests 2023-02-13 16:36:17 -08:00
Ross Thompson
f3c8c6e60a More fixeds to global history. 2023-02-13 18:08:51 -06:00
Ross Thompson
6ea830cf44 Fixed global history predictor. 2023-02-13 18:08:13 -06:00
Ross Thompson
3847d9e39a Updated global history predictor. 2023-02-13 18:07:32 -06:00
Ross Thompson
1ab2d0d19b Fixed bug in basic gshare implementation. Should be a better comparison to the speculative versions now. 2023-02-13 17:57:05 -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
Kevin Kim
02a7dc45f0 ALU lint fixes 2023-02-13 14:01:51 -08:00
Kevin Kim
ed6a0466ad ALU configurability changes 
-stuff that was ZBA supported was in ZBB so I changed that
 2023-02-13 14:00:06 -08:00
Kevin Kim
c9e6b9aeef edited controller so that add.uw passes tests 2023-02-13 13:49:46 -08:00
Kevin Kim
cf09bbff5f alu add.uw needs w64 to be false 2023-02-13 13:49:35 -08:00
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
Kevin Kim
19c8fa75f5 simulation runs-- clmul doesn't pass lint with xor tree 2023-02-11 21:22:33 -08:00
Kevin Kim
67db085b24 lint fixes 2023-02-11 21:13:10 -08:00
Kevin Kim
c7dbb49208 zbb, zbs, cnt lint fixes 2023-02-11 20:41:52 -08:00
Kevin Kim
016634d842 fixed byte unit lints 2023-02-11 20:25:34 -08:00
Kevin Kim
3653ea61b5 fixed lints in cnt 2023-02-11 20:22:42 -08:00
Kevin Kim
2dfbf15ff9 fixed typo in LZC 2023-02-11 19:59:03 -08:00
Kevin Kim
52ca8fa691 popcnt passes lint 2023-02-11 19:19:38 -08:00
Kevin Kim
2fefc3019e clmul passes lint 2023-02-11 19:16:13 -08:00
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
Kip Macsai-Goren
f95038551f fixed small errors to get regression to run with bit manip supported. 2023-02-10 10:37:06 -08:00
Kip Macsai-Goren
137dd890a0 Merge remote-tracking branch 'upstream/main' into main 2023-02-10 10:01:14 -08:00
Ross Thompson
eafb406c9e Merge branch 'main' of https://github.com/openhwgroup/cvw 2023-02-10 10:38:39 -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
91427ed72d RAS and RAS documentation now consistent. 2023-02-10 09:06:51 -06:00
Ross Thompson
2d7749db7f Updated globalhistory predictor. 2023-02-09 14:48:02 -06:00
Kevin Kim
f58a2b70a0 Include Funct7 in execute 
- Modifed datapath to support funct7 in execute
- Modified controller to pass on Funct7
- all lints pass
 2023-02-09 19:18:54 +00:00
Kevin Kim
76a8f2d3d3 added W64 zbb input signal in alu 2023-02-09 19:07:22 +00:00
Kevin Kim
17bd001057 modified zbb to account for cnt module change 2023-02-09 16:45:37 +00:00
Kevin Kim
5b5f9a2784 modified cnt for zbb to mux inputs 2023-02-09 16:45:22 +00:00
Ross Thompson
962c018991 Simplified branch predictor. 2023-02-08 18:24:38 -06:00
Kevin Kim
4bf0886129 moved files into bmu folder 2023-02-08 13:57:09 +00:00
Kip Macsai-Goren
347b43c811 Merge remote-tracking branch 'upstream/main' into main 2023-02-07 23:28:50 -08:00
David Harris
05ba66385f Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-02-07 16:49:58 -08:00
Ross Thompson
0678f3f2b7 Branch predictor cleanup. 2023-02-07 14:01:59 -06:00
David Harris
755c795f91 Moved STATUS_FS_INT write to if statement to properly prioritize 2023-02-07 06:55:42 -08:00
David Harris
e92605e2de Disabled STATUS_FS at reset, fixing issue #71 2023-02-07 06:31:14 -08:00
Kip Macsai-Goren
41a91cc1e7 fixed merge conflicts with removal of pipelined folder 2023-02-06 18:04:28 -08:00
Ross Thompson
c33230d1c1 Fixed Bug 66. 
If a load missed at the same time as a spilled instruction fetch with an ITLB miss in the second cache line, the HPTW did not wait for the load miss to finish.
 2023-02-06 17:32:28 -06:00
Ross Thompson
4e8ef4a0ac Removed unreachable if branch in hptw next state logic. 2023-02-06 16:42:07 -06:00
David Harris
7cf98811f3 Parenthesized reduction operators to avoid DC lint 2023-02-04 18:49:47 -08:00
David Harris
43668a3fc5 Developing debug test 2023-02-04 08:31:47 -08:00
David Harris
6b9ae4fc89 Fixed merge issues on synthDC PR 2023-02-04 04:13:40 -08:00
David Harris
e831baf335 Improved illegal NaN-box detection and formatted fsgninj 2023-02-04 03:42:20 -08:00
David Harris
97ee3732fe Merge branch 'main' of https://github.com/openhwgroup/cvw into dev 2023-02-03 08:36:11 -08:00
David Harris
e6bfcd14fa Merged with memories 2023-02-02 14:50:46 -08:00
David Harris
78eb90715c Removed pipelined level of hierarchy 2023-02-02 14:14:11 -08:00