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Author SHA1 Message Date
Ross Thompson
29f45d6203 Imperas found a bug with the Fence.I instruction. 
If a fence.i directly followed a store miss, the d$ would release Stall during the cache line write.
Then transition to ReadHold.  This cause the d$ flush to go high while in ReadHold.  The solution is
to ensure the cache continues to assert Stall while in WriteLine state.

There was a second issue also.  The D$ flush asserted FlushD which flushed the I$ invalidate.
Finally the third issue was CacheEn from the FSM needs to be asserted on an InvalidateCache.
 2023-01-20 10:17:21 -06:00
Ross Thompson
da4eec7e0e Improved comment. 2023-01-19 17:41:57 -06:00
Ross Thompson
117ff8163b ram uses always rather than always_ff due to modelsim issue. 2023-01-19 17:41:15 -06:00
Ross Thompson
23ab178192 Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-19 17:28:53 -06:00
Ross Thompson
928e06d4fa Added comment about needed changes in BTB. 2023-01-19 17:28:00 -06:00
Ross Thompson
50fdb7cae9 Rough draft of Install guide. 2023-01-19 17:27:45 -06:00
David Harris
569a016efa Removed study versions from comparator 2023-01-19 15:13:35 -08:00
David Harris
0488723db9 Moved unused study files to studies directory 2023-01-19 15:13:11 -08:00
David Harris
9df5fdbd89 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-19 14:47:54 -08:00
David Harris
25b607566c RAM declaration cleanup: 2023-01-19 14:47:51 -08:00
Ross Thompson
b027921902 Formatting. 2023-01-19 15:06:37 -06:00
Ross Thompson
ea96c2375f Formatting. 2023-01-19 14:18:46 -06:00
Ross Thompson
e380fd71ff Formatting and name changes. 2023-01-19 14:16:29 -06:00
Ross Thompson
47fdff6488 Formatting. 2023-01-18 19:26:20 -06:00
Ross Thompson
49daa736b1 Formatting spillsupport. 2023-01-18 19:25:54 -06:00
Ross Thompson
cd2f7c6208 Formatting. 2023-01-18 19:11:30 -06:00
Ross Thompson
7289fa8d44 Reduced complexity of spill logic by ensuring the irom outputs offset instrutions on a spill. 2023-01-18 19:10:34 -06:00
Ross Thompson
026d09b79b More IROM cleanup. 2023-01-18 18:47:02 -06:00
Ross Thompson
19e4d0f7cd Cleanup dtim and irom. 2023-01-18 18:44:30 -06:00
Ross Thompson
997dda11a8 Added comments to decompress.sv. May want to consider additional documentation. 2023-01-18 18:26:51 -06:00
Ross Thompson
fb234d506d Formatted subword* and bytemask. 2023-01-18 18:20:22 -06:00
Ross Thompson
469efa61af Formatting. 2023-01-18 18:17:48 -06:00
Ross Thompson
cbf46f417a Formatting. 2023-01-18 18:16:56 -06:00
Ross Thompson
22eee73a45 Formatting. 2023-01-18 18:16:20 -06:00
Ross Thompson
2048edb7a0 Renamed signals in amoalu. 2023-01-18 18:13:18 -06:00
Ross Thompson
40c0e67930 Formatting. 2023-01-18 18:05:11 -06:00
Ross Thompson
2622f5dfb8 Formatting. 2023-01-18 17:56:47 -06:00
Ross Thompson
a6b14eb9ee Formatting. 2023-01-18 17:49:19 -06:00
Ross Thompson
0b244e289c Formating. 2023-01-18 17:30:08 -06:00
Ross Thompson
affca27ec4 Formatting 2023-01-18 17:14:37 -06:00
Ross Thompson
58a07399a2 Formatting 2023-01-18 17:03:45 -06:00
Ross Thompson
fc5424fa62 Formatting 2023-01-18 16:58:03 -06:00
Ross Thompson
607c64e0ee Formating. 2023-01-18 16:52:46 -06:00
Ross Thompson
c34acab1d7 Formating. 2023-01-18 16:47:40 -06:00
David Harris
915987c524 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2023-01-18 13:07:03 -08:00
David Harris
331ef80d0f removed fma directory, improved plic comments 2023-01-18 13:06:54 -08:00
sarah-harris
789fc0e493 Minor fixes in datapath.sv and ieu.sv (comments, putting signals in correct grouping) 2023-01-18 07:26:08 -08:00
Ross Thompson
a929e53576 More comments added to abhfsm. 2023-01-17 22:58:06 -06:00
Ross Thompson
4bfabc4136 formating ahbinterface. 2023-01-17 22:54:42 -06:00
Ross Thompson
4b47598138 Moved amoalu to lsu. 2023-01-17 22:45:46 -06:00
Ross Thompson
8f4f17a4c8 Added commenets and formating to abhcachefsm and abhcacheinterface. 2023-01-17 22:22:23 -06:00
Ross Thompson
f146a01344 Cleaned up ahbcacheinterface. 2023-01-17 22:13:56 -06:00
Ross Thompson
d6c80d937c Formatting progress. 2023-01-17 22:10:31 -06:00
Ross Thompson
c75a164f46 Added comments to dtim and ahbcacheinterface. 2023-01-17 21:56:55 -06:00
Ross Thompson
97661a023a Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-17 21:54:55 -06:00
Ross Thompson
aa942feedc Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2023-01-17 15:44:44 -06:00
David Harris
c73bea83cd Clean up warnings from Questa 2023-01-17 13:43:39 -08:00
Ross Thompson
caff6e788c Somehow the imperas files spilled into the main branch. 2023-01-17 15:39:34 -06:00
Ross Thompson
c6e366b86e Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2023-01-17 14:50:45 -06:00
David Harris
555fee94fa IEU comment cleanup 2023-01-17 10:51:44 -08:00