Ross Thompson
597dd1e7e6
Added FlushF to hazard unit.
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Fixed some typos with the names of signals in the branch predictor. They were causing signals to be not set. Note there is a modelsim flag which prevents it from compiling if a logic is undefined.
I will look this up and add it to the compiler.
2021-02-19 16:36:51 -06:00
Ross Thompson
06e975ac2f
minor change to wave file.
2021-02-19 09:08:13 -06:00
Ross Thompson
7d6093b302
Hacked the sram memory models to reset their internal registers. This allows the simulation to run but is only temporary.
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About 149307ns of simulation run.
2021-02-18 21:32:15 -06:00
Ross Thompson
8cbc9f7e51
Wrote a bash script to generate custom modelsim radix which maps instruction addresses into human readable lables.
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Once combined with some simulation verilog this will display the current function in modelsim.
2021-02-17 22:20:28 -06:00
Ross Thompson
bbe0db3ebe
Integrated the branch predictor into the hardward. Not yet working.
2021-02-17 22:19:17 -06:00
Ross Thompson
ca546beaf8
We now have a solid rough draft of the 2 bit sat counter branch predictor with BTB and RAS.
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This is not yet tested but the system verilog does compile.
2021-02-15 14:51:39 -06:00
Ross Thompson
935e9e59e9
added branch predictor 2 bit table + SRAM model. The SRAM model is only approximate, but it does correctly model the read and write pipelined behavior.
2021-02-14 15:13:55 -06:00
Ross Thompson
8486f426b7
The top level of the branch predictor built and compiles. Does not yet function. Missing the BTB, RAS, and direction prediction tables.
2021-02-14 11:06:31 -06:00
Shreya Sanghai
4e887f83a3
added branch tests
2021-02-12 22:40:08 -05:00
bbracker
deb7780897
bus rw bugfix and peripherals testing
2021-02-12 00:02:45 -05:00
Tejus Rao
fb6a4bbbf0
added test cases for ADDW, SUBW, SLLW, SRLW, SRAW
2021-02-11 13:38:38 -05:00
Teo Ene
5f84ed407c
Adding coremark testbench and do files that Elizabeth has written thus far, on this account, in order to avoid merge conflicts
2021-02-10 20:48:39 -06:00
ethan-falicov
7925fe3131
Fixed merge conflict stuff
2021-02-10 10:03:30 -05:00
ethan-falicov
06517631cc
More merge conflicts yay
2021-02-10 09:54:30 -05:00
ethan-falicov
863796b3c1
Merge conflict fixing
2021-02-10 09:45:47 -05:00
ethan-falicov
67662b888e
Adding I Type test cases from Lab 1
2021-02-10 09:39:43 -05:00
Jarred Allen
e334475ab5
Fix compile error in imperas testbench
2021-02-07 15:48:12 -05:00
Elizabeth Hedenberg
805817cda4
merge conflict?
2021-02-07 02:34:49 -05:00
Jarred Allen
29b7a0cd25
Actually run the WALLY-LOAD tests
2021-02-06 14:56:40 -05:00
Jarred Allen
a3f2f4c7bc
Add test vector set for load instructions
2021-02-06 13:05:59 -05:00
bbracker
15c0b4af22
JAL testing
2021-02-05 08:08:42 -05:00
Thomas Fleming
8d7a515ae7
Complete STORE tests
2021-02-04 15:38:22 -05:00
Brett Mathis
11e2666bb2
Parallel FSR's and F CTRL logic
2021-02-04 02:25:55 -06:00
Jarred Allen
088fbbcbf0
Change busybear test to use work-busybear library
2021-02-03 11:12:47 -05:00
Jarred Allen
f700efc2b3
Start on a test set for loads
2021-02-03 00:37:43 -05:00
David Harris
2a80bcf543
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-02-02 19:44:43 -05:00
David Harris
756352f129
Minor tweaks
2021-02-02 19:44:37 -05:00
Jarred Allen
e5bd749e2a
Refactor regression test
2021-02-02 17:22:29 -05:00
Noah Boorstin
d2064987e9
Add busybear testbench to nightly regression checking
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If you don't like how I did this please feel free to undo it
2021-02-02 22:05:35 +00:00
Noah Boorstin
b5f474d9f5
same thing but do that right this time
2021-02-02 21:47:15 +00:00
Noah Boorstin
6dd5c42d55
change undefined syntax in extend.sv
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don't need verilator execption anymore
2021-02-02 21:39:20 +00:00
David Harris
429f48e766
Rename ifu/dmem/ebu signals to match uarch diagram
2021-02-02 15:09:24 -05:00
David Harris
9f9c3bcece
Changed DTIM latency to 2 cycles
2021-02-02 14:22:12 -05:00
David Harris
616830a3f0
Cleaned up hazard interface
2021-02-02 13:53:13 -05:00
David Harris
587a343dac
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
2021-02-02 13:42:35 -05:00
David Harris
229bde5953
Moved LoadStall generation to IEU
2021-02-02 13:42:23 -05:00
David Harris
bb83fda1d8
Moved writeback pipeline registers from datapth into DMEM and CSR
2021-02-02 13:02:31 -05:00
Jarred Allen
da43b2be53
Fix intermittent errors caused by weird library stuff
2021-02-02 11:20:09 -05:00
Noah Boorstin
f1768ee50b
Busybear: start checking CSRs
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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
David Harris
92bf1674b4
Moved fpu to temporary location to fix compile and cleaned up interface formatting
2021-02-01 23:44:41 -05:00
Jarred Allen
f143518b23
Fix issues in parallel regression testing
2021-02-01 23:29:03 -05:00
Noah Boorstin
38265c03b7
busybear: start adding CSR checking
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@kaveh is there a less verbose way to do this?
2021-02-01 22:08:51 -05:00
Brett Mathis
bcb722272e
OSU FPU IP initial commit
2021-02-01 19:33:43 -06:00
Noah Boorstin
d592db79c9
busybear: change register file checking to only store register changed
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this should make parsedRegs.txt much smaller
2021-02-02 01:27:43 +00:00
Noah Boorstin
71f5bb0ce8
Add PCW checking
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for now, doesn't check InstrW because it fails on compressed instructions
2021-02-01 23:57:33 +00:00
David Harris
1a3963bed0
Renamed DCU to DMEM
2021-02-01 18:52:22 -05:00
Jarred Allen
5cf3d188c6
Parallelize regression-wally.p
2021-02-01 15:40:27 -05:00
Noah Boorstin
1b9ec8b339
busybear: print warning when NOPing out instructions
2021-02-01 19:44:56 +00:00
Noah Boorstin
a82f8977c6
busybear: NOP out floating point instructions for now
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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
cca60ed06d
update busybear testbench to conform to new structure
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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
