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421 Commits 14 Branches 1 Tag 31 MiB
a99c0502e5
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364 Commits

Author SHA1 Message Date
Ross Thompson
a99c0502e5 Fixed bugs with the csr interacting with StallW. StallW is required to pervent updating a csr. Now have a working branch predictor and performance counters to track the number of commited branches and mispredictions. 2021-03-24 15:56:55 -05:00
Ross Thompson
11109e5a88 Updated the function radix to have a new name FunctionName and it now pervents false transisions from the current function name when the PCD is flushed. 2021-03-24 13:03:43 -05:00
Ross Thompson
1c6e37120e Fixed RAS errors. Still some room for improvement with the BTB and RAS. 2021-03-23 23:00:44 -05:00
Ross Thompson
84ad1353e4 Fixed a bunch of bugs with the RAS. 2021-03-23 21:49:16 -05:00
Ross Thompson
4fb7a1e0a6 Fixed the valid bit issue. Now the branch predictor is actually predicting instructions. 2021-03-23 20:20:23 -05:00
Ross Thompson
49348d734b fixed issue with BTB's valid bit not updating. There is still a problem is valid not ocurring in the correct clock cycle. 2021-03-23 20:06:45 -05:00
Ross Thompson
95dbc5f1fa fixed a whole bunch of bugs with the branch predictor. Still an issue with how PCNextF is not updated because the CPU is stalled. 2021-03-23 16:53:48 -05:00
Ross Thompson
174557ae89 Simulation definitely shows the branch predictor counters and branch predictor don't work. :( 2021-03-23 14:04:58 -05:00
Ross Thompson
5edc90b1c2 added a whole bunch of interseting test code for branches which does not work. 2021-03-23 13:54:59 -05:00
Ross Thompson
6a050219d4 updated the branch predictor config. 2021-03-23 13:54:59 -05:00
Ross Thompson
9e61481414 Added first benchmark. 2021-03-23 13:54:59 -05:00
Ross Thompson
2b0f7cdd42 Temporary exe2memfile0.pl script to support starting addresses of 0. 2021-03-23 13:54:59 -05:00
Ross Thompson
e1842c8da6 Broken commit. Trying to get exe2memfile.pl to work correctly with non 0x8000_0000 starting addresses. 2021-03-23 13:54:59 -05:00
Shreya Sanghai
1d6a2989ed PC counts branch instructions 2021-03-23 14:25:51 -04:00
Jarred Allen
7da8af4c68 Another tweak to regression-wally.py comments 2021-03-23 00:18:38 -04:00
Jarred Allen
82de84469f Slight change to regression-wally.py comments 2021-03-23 00:02:40 -04:00
Noah Boorstin
849641f31e busybear: add better warning on illegal instruction 
...also it seems that mret is being picked up as an illegal instruction??
 2021-03-22 18:24:35 -04:00
Noah Boorstin
34b8f750ce busybear: temporarially force rf[5] correct after failure to read CSR 2021-03-22 18:12:41 -04:00
Noah Boorstin
77dd0b4504 busybear: allow overwriting read values 2021-03-22 17:28:44 -04:00
Noah Boorstin
7bb31c3287 busybear: finally get the right error 2021-03-22 16:52:22 -04:00
bbracker
5efd5958e7 added delays to uart AHB signals 2021-03-22 15:40:29 -04:00
Noah Boorstin
2aa76b27e1 busybear: comment out some debug printing 2021-03-22 14:54:05 -04:00
Noah Boorstin
74bcd9b994 regression: expect 200k instead of 100k busybear instrs 
and a minor busybear bugfix
 2021-03-22 14:47:52 -04:00
bbracker
11d4a8ab34 first pass at PLIC interface 2021-03-22 10:14:21 -04:00
Katherine Parry
f741ba7702 fixed various bugs in the FMA 2021-03-21 22:53:04 +00:00
Katherine Parry
e317e7511e messy FMA rewrite using section 7.5.4 in The Handbook of Floating-Point Arithmetic 2021-03-20 02:05:16 +00:00
bbracker
85363e941d AHB bugfixes and sim waveview refactoring 2021-03-18 18:25:12 -04:00
Shreya Sanghai
09faa40eb6 fixed minor bugs in testbench 2021-03-18 17:37:10 -04:00
Shreya Sanghai
bbe0957df5 Merge branch 'gshare' into main 
Conflicts:
	wally-pipelined/regression/wave.do
 2021-03-18 17:25:48 -04:00
Ross Thompson
1091dd10c1 Switched to gshare from global history. 
Fixed a few minor bugs.
 2021-03-18 16:05:59 -05:00
Ross Thompson
8f4051543c Fixed minor bug with the size of gshare. 2021-03-18 16:00:09 -05:00
Shreya Sanghai
eb86bfc084 removed unnecesary PC registers in ifu 2021-03-18 16:31:21 -04:00
Thomas Fleming
8d484174a7 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2021-03-18 14:36:42 -04:00
Thomas Fleming
7f7597e667 Connect tlb, pagetablewalker, and memory 2021-03-18 14:35:46 -04:00
Thomas Fleming
7d4906b1c7 Improve page table creation in python file 2021-03-18 14:27:09 -04:00
Noah Boorstin
bc1a0c6ee7 change ifndef to generate/if 2021-03-18 12:50:19 -04:00
Noah Boorstin
a2b0af460e everyone gets a bootram 2021-03-18 12:35:37 -04:00
Noah Boorstin
ced2a32d21 busybear: update memory map, add GPIO 2021-03-18 12:17:35 -04:00
Teo Ene
57f1ca5259 Switched coremark to RV64IM 2021-03-17 22:39:56 -05:00
Teo Ene
d2fe42d6d0 adapted coremark bare testbench to new dtim RAM HDL 2021-03-17 16:59:02 -05:00
Teo Ene
4fd0ecff69 Temporarily reverted my last few commits 2021-03-17 15:16:01 -05:00
Teo Ene
7446a7b479 fix to last commit 2021-03-17 15:07:02 -05:00
Teo Ene
3e849f99a6 fix to last commit 2021-03-17 15:02:15 -05:00
Teo Ene
d72d774a0b addition to last commit 2021-03-17 14:52:31 -05:00
Teo Ene
dfe6df2e00 Added Ross's addr lab stuff to coremark stuff 2021-03-17 14:50:54 -05:00
Elizabeth Hedenberg
041439c008 fixing coremark branch prediction 2021-03-17 15:15:55 -04:00
Elizabeth Hedenberg
d0ddb5f461 replicating coremark changes into coremark bare 2021-03-17 14:36:34 -04:00
Elizabeth Hedenberg
da758e9e14 Merge branch '3_3_2021' into main 
Making sure coremark works with spring break changes
 2021-03-17 14:11:37 -04:00
Ross Thompson
f070aae847 Fixed issue with sim-wally-batch. Are people still using this script? 2021-03-17 11:17:52 -05:00
Ross Thompson
3618a39087 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-17 11:07:57 -05:00