Andrew Waterman
d59bddfbf1
fix I$ miss replay bug
2012-01-21 20:42:13 -08:00
Andrew Waterman
31c56228e2
add missing "otherwise"
2012-01-21 20:13:15 -08:00
Henry Cook
97f0852b17
DM cache with assoc-aware subunits passes all asm and bmarks
2012-01-18 17:53:26 -08:00
Henry Cook
8623d58724
split into two caches, compiles
2012-01-18 17:09:35 -08:00
Henry Cook
29ed8eb31a
More utils for nbdcache
2012-01-18 17:09:35 -08:00
Henry Cook
7e25749581
Groundwork for assoc cache implementation
2012-01-18 17:09:35 -08:00
Andrew Waterman
07f184df2f
adhere to new chisel c naming convention
2012-01-18 15:23:21 -08:00
Henry Cook
1d76255dc1
new chisel version jar and find and replace INPUT and OUTPUT
2012-01-18 14:39:57 -08:00
Andrew Waterman
e4cf6391d7
fix i$ miss pathology and badvaddr bug
2012-01-17 23:47:35 -08:00
Andrew Waterman
0369b05deb
move replays to writeback stage
2012-01-17 21:12:31 -08:00
Andrew Waterman
1c8f496811
fix fpga build
2012-01-13 20:04:11 -08:00
Andrew Waterman
addfe55735
add FPGA memory generator script
2012-01-13 18:19:08 -08:00
Andrew Waterman
acf3134e80
minor control logic cleanup
2012-01-12 14:19:18 -08:00
Andrew Waterman
4807d7222b
use replay to handle I$ misses
...
this eliminates a long path in the fetch stage
2012-01-11 19:20:20 -08:00
Andrew Waterman
1a7bfd4350
remove icache req_rdy signal
2012-01-11 18:27:11 -08:00
Andrew Waterman
bcb55e581a
remove host.start signal, use reset instead
2012-01-11 17:49:32 -08:00
Andrew Waterman
92dda102b6
slight control logic cleanup
2012-01-11 16:56:40 -08:00
Andrew Waterman
938b142d64
require writes to memory to be uninterrupted
2012-01-03 18:41:53 -08:00
Andrew Waterman
142dfc6e07
made tohost/fromhost 64 bits wide
2012-01-03 15:09:08 -08:00
Andrew Waterman
20aee36c96
move PCR writes to WB stage
2012-01-02 15:42:39 -08:00
Andrew Waterman
3045b33460
remove second RF write port
...
load miss writebacks are treated like mul/div now.
2012-01-02 02:51:30 -08:00
Andrew Waterman
ffe23a1ee8
fix WAW hazard handling
2012-01-02 00:25:11 -08:00
Andrew Waterman
eb657dd250
reduce superfluous replays
...
we only replay after a cache miss if we mis-scheduled the use of a load.
2012-01-01 21:28:38 -08:00
Andrew Waterman
efc623cc36
validate BTB address and use BTB for J/JAL/JR/JALR
...
even if we weren't using the BTB for JR/JALR, we'd need to
flush the BTB on FENCE.I and on context switches, but
validating its result suffices instead.
2012-01-01 17:04:14 -08:00
Andrew Waterman
2f8fcebea0
remove datapath register resets resets
2012-01-01 16:09:40 -08:00
Andrew Waterman
f9160c53cf
fixes for correct verilog generation
2011-12-29 23:46:21 -08:00
Andrew Waterman
1028ff7d9b
fix multiplier bug
2011-12-29 23:45:09 -08:00
Andrew Waterman
d65e1a2eee
vlsi verilog compiles now but doesn't simulate
2011-12-20 22:08:27 -08:00
Andrew Waterman
38ea10a5f4
parameterized multiplier unrolling
2011-12-20 04:18:28 -08:00
Andrew Waterman
733fc8e65e
booth multiplier
2011-12-20 03:49:07 -08:00
Andrew Waterman
b5a8b6dc73
fix divider for RV32
2011-12-19 16:57:53 -08:00
Andrew Waterman
bcceb08373
add dummy mul_rdy signal
2011-12-17 07:30:47 -08:00
Andrew Waterman
96c78829b4
improve ALU and fix revealed emulator bug
2011-12-17 07:20:32 -08:00
Andrew Waterman
82700cad72
fix multiplier for rv32
2011-12-17 07:20:00 -08:00
Andrew Waterman
a8d0cd95e6
hellacache now works
2011-12-17 03:26:11 -08:00
Andrew Waterman
56c4f44c2a
hellacache returns!
...
but AMOs are unimplemented.
2011-12-12 06:49:39 -08:00
Yunsup Lee
0ea2704b80
new mftx instruction format
2011-12-12 03:23:12 -08:00
Andrew Waterman
8308345364
work in progress on hellacache
2011-12-10 07:01:47 -08:00
Andrew Waterman
ce201559f3
Support cache->cpu nacks one cycle after request
2011-12-10 00:42:09 -08:00
Andrew Waterman
c01e1f1cef
Don't replay from EX stage.
...
EX replays are now handled from MEM. We may move them to WB.
2011-12-09 19:42:58 -08:00
Andrew Waterman
218f63e66e
code cleanup/parameterization
2011-12-09 00:42:43 -08:00
Andrew Waterman
a87ad06780
Automatically infer rocketCAM address width
2011-12-06 02:05:40 -08:00
Rimas Avizienis
fa784d1d7d
made setReadLatency argument a parameter defined in consts.scala
2011-12-05 00:33:17 -08:00
Rimas Avizienis
ff95cacb55
icache/dcache tag+data arrays now implemented using Mem4()
...
however there seems to be a bug - readLatency needs to be set to 0
for C model to work, and 1 for Verilog model.
2011-12-04 01:18:38 -08:00
Rimas Avizienis
e894b79870
caches now use Mem4() memories for tag+data arrays
2011-12-03 19:41:15 -08:00
Rimas Avizienis
c580180b66
tweaks to cache/SRAM interface for TSMC65 SRAMs
2011-12-02 02:01:08 -08:00
Rimas Avizienis
e70b41241c
changed branch addr generation to get it off critical path
2011-12-02 01:56:17 -08:00
Rimas Avizienis
cf1965493b
renamed SRAM modules to match TSMC65 MC generated SRAMs
2011-12-01 13:14:33 -08:00
Rimas Avizienis
da2fdf4f85
fixed console i/o
2011-11-30 22:51:59 -08:00
Rimas Avizienis
b2894671f6
Merge branch 'master' of github.com:ucb-bar/riscv-rocket
2011-11-30 21:55:13 -08:00