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
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
Shreya Sanghai
09faa40eb6
fixed minor bugs in testbench
2021-03-18 17:37:10 -04:00
Noah Boorstin
bfa7aedd35
busybear: add seperate message on bad memory access becasue its confusing
2021-03-16 21:42:26 -04:00
Noah Boorstin
400791163e
copy Ross's branch predictor preload change into busybear
2021-03-15 18:27:27 -04:00
Noah Boorstin
a8b242a6ef
busybear: account for CSR moving
2021-03-11 06:45:14 +00:00
Noah Boorstin
4a8b689f62
busybear: better NOPing out of float instructions
2021-03-08 21:24:19 +00:00
Noah Boorstin
c780a25f92
busybear: better instrF checking
...
So this now checks instrF only when StallD is low. @kaveh I'd love your
opinion on this. I don't know if this is a good idea or not. Ideally we
should probably be checking InstrRawD instead, but I kind of want to stay
checking the instr in the F stage instead of D for now. Idk if this is worth
staying in F, I can't really see any big downsides to checking the instruction in
D except that PCD isn't an external signal, but neither is StallD, so.....
Anyway I'd love others' thoughts on this
2021-03-08 19:48:12 +00:00
Noah Boorstin
93c9c57426
busybear: load mem files from verilog instead of .do
2021-03-08 19:26:26 +00:00
Noah Boorstin
1a11b60664
busybear: slight testbench update
2021-03-05 19:00:40 +00:00
Noah Boorstin
62b441f3f5
busybear: probably discovered bug in ahb code
2021-03-01 20:56:04 +00:00
Noah Boorstin
965d48afe7
busybear: only check pc when it actually changes
2021-03-01 19:08:35 +00:00
Noah Boorstin
4833b36535
busybear: more adapting to new memory system
2021-03-01 18:50:42 +00:00
Noah Boorstin
db86d20d11
busybear: check instead of providing InstrF
2021-02-28 16:46:53 +00:00
Noah Boorstin
e5e345d161
busybear: instantiate normal wallypipelinedsoc
2021-02-28 06:02:21 +00:00
Noah Boorstin
ab9247d625
busybear: add main ram loading, better instr checking also
2021-02-26 20:26:54 +00:00
kaveh Pezeshki
ad631ec3a1
fixed sensitivity list on error checking always block, removed useless once and for all
2021-02-26 13:41:16 -05:00
kaveh pezeshki
d32421822c
restored
2021-02-26 02:22:08 -08:00
kaveh pezeshki
3bb8e0d918
condensed always blocks to avoid race conditions
2021-02-24 11:35:28 -08:00
Noah Boorstin
3d82ceffb7
busybear: preload bootram
...
thanks to Prof Stine for the .do file commands
@kaveh can you check line 201? it does nothing, but things break when
I remove that line
2021-02-24 18:46:09 +00:00
kaveh pezeshki
b36a5614b4
added comments for RAM and bootram, removed trailing whitepace
2021-02-23 21:28:33 -08:00
Noah Boorstin
c8e9edcc43
busybear: add bootram section in the same manner as ram
2021-02-24 02:02:28 +00:00
Noah Boorstin
a24270c4ca
busybear: add support for subwords in ram
...
this is really weird and i'm not sure if i did it right. I'd love if @kaveh could review it
2021-02-24 01:51:18 +00:00
Noah Boorstin
00605864fc
busybear: start adding ram
2021-02-23 22:01:23 +00:00
Noah Boorstin
d5e7a8a4cf
busybear: remove unused signals
2021-02-23 19:38:19 +00:00
Noah Boorstin
ceb7df3561
busybear: instantiate soc instead of hart
2021-02-23 18:59:06 +00:00
Noah Boorstin
5835641c6c
busybear testbench: check (almost) all the CSRs
2021-02-16 20:03:24 -05:00
Noah Boorstin
7312da1a99
busybear: allow testbench to ignore lack of MMU for now
...
I'd really like to go over this with someone else, not sure if this is
a good thing to be doing
If it is, we're at 1M instructions!
2021-02-12 20:08:56 +00:00
Noah Boorstin
97302dd12f
busybear: slightly neater error handling
2021-02-12 17:21:56 +00:00
Noah Boorstin
5bf6add635
bump into virtual/physcial memory?
2021-02-11 23:06:12 -05:00
Noah Boorstin
4427780a41
busybear: more updates
...
now gets to instruction 839037 before failing
also updates to match new gdb output format
umm there seems to be something wrong with the SSTATUS CSR. Just leaving
it out for now, will come back and check it later
2021-02-11 22:42:58 -05:00
Noah Boorstin
01c0f9db63
Busybear: next week of updates
...
- move parsed instructions out of git, to /courses/e190ax/busybear_boot
- parsed first 1M instructions, and now parse from split GDB runs
- now at about 230k instructions, can't progress further for now since atomic instructions
aren't implemented yet
2021-02-07 03:14:48 +00:00
Noah Boorstin
dc881bd51b
busybear: add more CSRs
2021-02-04 20:13:36 +00:00
Noah Boorstin
d9431d5bed
busybear: check initial values also
2021-02-04 19:22:09 +00:00
Noah Boorstin
8d53e36bbc
Busybear: start checking CSRs
...
scounteren and mcounteren are currenly manually deleted from the CSRs list
(see slack channl #linux-bringup)
and 3 of the CSRs referenced are skipped because of weird locations for them
oh and this doesn't check their initial state, just their changing. This could be a problem
2021-02-02 06:06:03 +00:00
Noah Boorstin
c634b2f81e
busybear: start adding CSR checking
...
@kaveh is there a less verbose way to do this?
2021-02-01 22:08:51 -05:00
Noah Boorstin
ff88214730
busybear: change register file checking to only store register changed
...
this should make parsedRegs.txt much smaller
2021-02-02 01:27:43 +00:00
Noah Boorstin
416b3fc96c
Add PCW checking
...
for now, doesn't check InstrW because it fails on compressed instructions
2021-02-01 23:57:33 +00:00
Noah Boorstin
a432d607ce
busybear: print warning when NOPing out instructions
2021-02-01 19:44:56 +00:00
Noah Boorstin
b7f63c1dc7
busybear: NOP out floating point instructions for now
...
Why does linux even try to do float stuff doing booting??
also, now runs the first 100k instructions!
2021-01-30 19:52:47 +00:00
Noah Boorstin
4358f086be
update busybear testbench to conform to new structure
...
aaaaaaaaaaaaaaaaaahhhh so many changes
also the testbench now uses another internal signal,
which I don't like, but I can't think of a better option rn
2021-01-30 19:19:00 +00:00
Noah Boorstin
194d5b55ab
update busybear testbench to conform to new structure
2021-01-29 17:46:50 +00:00
Noah Boorstin
8ab5879af5
busybear testbench: test on first 100k instrs
...
currently gets about 47k instrs correctly
also fix gdb parsing to avoid accidently matching on function names
2021-01-29 00:14:23 -05:00
Noah Boorstin
619dec1490
busybear: simulate first 10k instructions
...
I know we need to add CSR checking sometime soon
Also I'm a bit sketpical this is all working properly, and that no new bugs
were uncovered from 1k instrs to 10k instrs
2021-01-28 19:44:58 -05:00
Noah Boorstin
4f84bd3c8f
busybear: fix misaligned writing checking
2021-01-28 19:35:09 -05:00
Noah Boorstin
beb93e2508
busybear: add more test instructions
...
currently testing first 1k instrs
2021-01-28 16:41:37 -05:00
Noah Boorstin
287cf4e5a6
oops forgot to add C.BEQZ, C.BNEZ checks to busybear testbench
2021-01-28 16:35:12 -05:00
Noah Boorstin
405c9d90b5
busybear testbench: understand bytemask for writes
2021-01-28 15:42:47 -05:00
