Andrew Waterman
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267394d3cc
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Fix CSR interlocks
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2014-01-24 16:37:40 -08:00 |
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Andrew Waterman
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1f986d1c96
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Branches don't care about the ALU input/function
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2014-01-24 16:37:40 -08:00 |
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Andrew Waterman
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a1b7774f5d
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Simplify handling of CAUSE register
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2014-01-24 16:37:39 -08:00 |
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Christopher Celio
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a2be21361e
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Allow ICacheConfig to toggle fetch-width.
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2014-01-22 16:19:57 -08:00 |
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Andrew Waterman
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a7489920ce
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Support CSR atomics on all CSRs, not just STATUS
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2014-01-21 16:17:39 -08:00 |
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Andrew Waterman
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6ba2c1abe5
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Use auto-generated CAUSE constants
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2014-01-21 15:01:54 -08:00 |
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Andrew Waterman
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95de358a96
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More of the same FPU fix
some SP ops followed by DP stores were not working because they
were encoded as subnormals, not NaNs.
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2014-01-17 14:09:30 -08:00 |
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Andrew Waterman
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cf38001e98
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Fix fmv.s.x -> fsd
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2014-01-17 03:52:35 -08:00 |
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Yunsup Lee
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30b894c2c4
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Merge remote-tracking branch 'origin/master' into hwacha-port
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2014-01-16 16:04:48 -08:00 |
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Yunsup Lee
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6bbbf36979
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push accel/rocket dmem port back to rocket
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2014-01-16 16:01:41 -08:00 |
|
Andrew Waterman
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57f4d89c90
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Generate D$ replay_next signals correctly
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2014-01-16 00:16:09 -08:00 |
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Andrew Waterman
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6ebdc4d94e
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Simplify store conditional failure code generation
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2014-01-16 00:15:48 -08:00 |
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Andrew Waterman
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31060ea8ae
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Fix fubar long-latency writeback control logic
Load miss writebacks happening at the same time as multiplication
wasn't working. Hopefully this does it.
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2014-01-14 04:02:43 -08:00 |
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Andrew Waterman
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e8486817e6
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Clean up formatting (i.e. remove tabs, semicolons)
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2014-01-13 21:43:56 -08:00 |
|
Andrew Waterman
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a50a1f7d50
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Clean up multiplier/divider stuff
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2014-01-13 21:37:16 -08:00 |
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Andrew Waterman
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4d236979bd
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Fix very far forward JALs
We were sign-extending from the wrong bit, causing a backwards jump.
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2014-01-13 00:55:48 -08:00 |
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Andrew Waterman
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c546f66404
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Swap JAL/JALR encodings (again)
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2014-01-13 00:54:49 -08:00 |
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Quan Nguyen
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ebec444ad2
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Increase tag width for configurable precision in Hwacha
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2013-12-13 03:33:02 -08:00 |
|
Andrew Waterman
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07a91bb99a
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Miscellaneous cleanup
|
2013-12-09 19:53:14 -08:00 |
|
Andrew Waterman
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da3135ac9b
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Begin integer unit clean-up
...to make it easier to generate the superscalar version of the core.
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2013-12-09 15:06:13 -08:00 |
|
Andrew Waterman
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16d5250924
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Correct FP trap behavior on FCSR
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2013-12-05 04:18:04 -08:00 |
|
Andrew Waterman
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5814a90472
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Make DecodeLogic interface more flexible
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2013-12-05 04:16:48 -08:00 |
|
Andrew Waterman
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924261e2b2
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Update to new privileged ISA... phew
|
2013-11-25 04:35:15 -08:00 |
|
Andrew Waterman
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65b8340cea
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Mitigate D$ hit -> branch -> NPC critical path
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2013-11-24 14:21:03 -08:00 |
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Andrew Waterman
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53f726008b
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Use Mem instead of Vec[Reg] for TLB
QoR-neutral, improves simulation speed
|
2013-11-24 14:21:02 -08:00 |
|
Yunsup Lee
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d450b85483
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Merge branch 'master', remote-tracking branch 'origin' into hwacha
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2013-11-21 14:57:38 -08:00 |
|
Yunsup Lee
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68e270eeb2
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fix slli/slliw encoding bug
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2013-11-21 14:44:58 -08:00 |
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Quan Nguyen
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3b109763ad
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Connect FMA to Hwacha pipes
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2013-11-19 20:54:47 -08:00 |
|
Stephen Twigg
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a662e85f2a
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Merge branch 'master' into hwacha
|
2013-11-14 16:02:44 -08:00 |
|
Yunsup Lee
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c1966e2b0a
|
forgot to put htif into uncore package
|
2013-11-07 15:42:03 -08:00 |
|
Yunsup Lee
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da033af0b0
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move htif to uncore
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2013-11-07 13:18:46 -08:00 |
|
Yunsup Lee
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4c56323f6f
|
hookup all memory ports
|
2013-11-05 17:12:09 -08:00 |
|
Stephen Twigg
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eae571e371
|
Remove rocc memory simplifye module (Hwacha has its own)
|
2013-11-05 15:31:03 -08:00 |
|
Andrew Waterman
|
12f0369e6e
|
Simplify divide early out circuitry
|
2013-10-29 13:20:40 -07:00 |
|
Andrew Waterman
|
b44dafbdca
|
Simplify branch offset mux
|
2013-10-29 13:20:40 -07:00 |
|
Andrew Waterman
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23f7bab4f3
|
Reduce FMA pipeline depths
FMA QoR has improved enough to allow this change.
|
2013-10-29 13:20:40 -07:00 |
|
Yunsup Lee
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1583560757
|
fix replay bug, don't respond when cmd is a NOP
|
2013-10-28 22:35:18 -07:00 |
|
Stephen Twigg
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36b85b8ee2
|
Fix issue where the MSB of D$ req tag was getting lost for all agents when an accelerator was attached.
|
2013-09-25 11:51:10 -07:00 |
|
Stephen Twigg
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891e459625
|
Export stats pcr register (#28 currently) to the top-level
|
2013-09-25 01:16:32 -07:00 |
|
Stephen Twigg
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730a6ec76b
|
AccumulatorExample now properly sets its busy bit. Also, pepper some helpful comments into AccumulatorExample
|
2013-09-24 16:32:49 -07:00 |
|
Andrew Waterman
|
81c752de84
|
Support disabling virtual memory
|
2013-09-24 13:58:47 -07:00 |
|
Andrew Waterman
|
adc386f889
|
Turn off virtual memory inside RoCC base class
|
2013-09-24 13:58:47 -07:00 |
|
Stephen Twigg
|
3532ae0b79
|
From Andrew, actually mark scoreboard when rocc instruction with a writeback is issued. Also, fix an issue with AccumulatorExample not properly tagging its memory requests. Finally, reverted changes from f27429c to more properly follow the spike model (always return previous value of accumulator).
|
2013-09-24 10:54:09 -07:00 |
|
Stephen Twigg
|
db1e09f0d0
|
Fix issues with RoCC AccumulatorExample stalls on memory interface
|
2013-09-23 00:21:43 -07:00 |
|
Stephen Twigg
|
158cee08af
|
Adjust ordering of RoCCInstruction to reflect new ISA encoding. (Note: Fixes register op issues with AccumulatorExample but still slight issue with executing memory loads)
|
2013-09-22 03:18:06 -07:00 |
|
Andrew Waterman
|
1d2f4f8437
|
New ISA encoding, AUIPC semantics
|
2013-09-21 06:32:40 -07:00 |
|
Andrew Waterman
|
25ab402932
|
swap JAL, JALR encodings
|
2013-09-15 04:29:06 -07:00 |
|
Andrew Waterman
|
110e53cb48
|
Revert "Add early out to multiplier"
This broke recently and I don't have time to figure out why.
|
2013-09-15 04:15:32 -07:00 |
|
Andrew Waterman
|
88d1c47665
|
don't disassemble within chisel
|
2013-09-15 04:14:45 -07:00 |
|
Andrew Waterman
|
f12bbc1e43
|
working RoCC AccumulatorExample
|
2013-09-14 22:34:53 -07:00 |
|