Ross Thompson
a64a37d702
Merge of main with the new icache and the branch predictor. I believe there is a bug in the icache with unaligned memory access. The second part of the access is incorrectly relying on the PCF being the address of the next two bytes of the instruction. However this is not always the case as the branch predictor can get the wrong target address. The icache needs to generate the +2 address internally.
2021-03-30 23:18:20 -05:00
Noah Boorstin
77dd0b4504
busybear: allow overwriting read values
2021-03-22 17:28:44 -04:00
bbracker
11d4a8ab34
first pass at PLIC interface
2021-03-22 10:14:21 -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
Noah Boorstin
bc1a0c6ee7
change ifndef to generate/if
2021-03-18 12:50:19 -04:00
Noah Boorstin
ced2a32d21
busybear: update memory map, add GPIO
2021-03-18 12:17:35 -04:00
Noah Boorstin
e7fae21eb8
busybear: add COUNTERS define
2021-03-16 21:08:47 -04:00
Shreya Sanghai
36f0631203
added gshare and global history predictor
2021-03-16 17:03:01 -04:00
Shreya Sanghai
9eed875886
added global history branch predictor
2021-03-16 16:06:40 -04:00
Ross Thompson
4c8952de6a
Converted branch predictor preloads to use system verilog rather than modelsim's load command.
2021-03-15 12:39:44 -05:00
Noah Boorstin
f48af209c4
busybear: make CSRs only weird for us
2021-03-05 00:46:32 +00:00
Noah Boorstin
26d4024b33
busybear: fix bootram range
2021-03-01 17:45:21 +00:00
Noah Boorstin
6e70ae8b3d
busybear: add 2nd dtim for bootram
2021-02-28 16:08:54 +00:00
Noah Boorstin
edd5e9106d
busybear: remove gpio, start adding 2nd ram
2021-02-28 06:02:40 +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
dabb026104
busybear: lie about MISA to match OVP's MISA
2021-01-29 00:58:56 -05:00
Noah Boorstin
6c567aab9a
Update busybear tests to conform to new directory structure
2021-01-25 20:37:18 -05:00
David Harris
fa18052348
Added test configurations
2021-01-25 11:28:43 -05:00
