Andrew Waterman
|
1b5e39e7fc
|
fix bug in BTB
a BTB update followed by a taken branch could cause incorrect control flow.
|
2012-02-15 21:36:08 -08:00 |
|
Andrew Waterman
|
fc5ba769da
|
disable vector unit by default
|
2012-02-15 18:58:41 -08:00 |
|
Andrew Waterman
|
8b3b3abd3d
|
fix external memory request nack logic
|
2012-02-15 18:57:40 -08:00 |
|
Andrew Waterman
|
fe2c1d1321
|
add vec->ctrl fences
|
2012-02-15 18:31:19 -08:00 |
|
Yunsup Lee
|
82cd3625c2
|
add in vackq interface
|
2012-02-15 17:53:24 -08:00 |
|
Andrew Waterman
|
c13524ad3a
|
fix vcmdq full replay logic
|
2012-02-15 17:49:12 -08:00 |
|
Yunsup Lee
|
258d050e1b
|
add stall logic for vector command queues
|
2012-02-15 14:48:41 -08:00 |
|
Yunsup Lee
|
32bdf5098a
|
refactor vector control logic & datapath in the rocket core
|
2012-02-15 13:30:22 -08:00 |
|
Yunsup Lee
|
7c11c1406c
|
vector-vector add working!
|
2012-02-15 02:28:07 -08:00 |
|
Yunsup Lee
|
6bdf9dc513
|
hwacha integration: now it compiles correctly!
|
2012-02-14 23:34:57 -08:00 |
|
Yunsup Lee
|
a51c7cc927
|
new build system with updated chisel, hwacha
|
2012-02-14 19:43:59 -08:00 |
|
Andrew Waterman
|
0ec7767c13
|
declaring success on FPU for now
|
2012-02-14 19:11:57 -08:00 |
|
Andrew Waterman
|
297223a13c
|
squash subsequent external mem request after nack
|
2012-02-14 15:12:16 -08:00 |
|
Andrew Waterman
|
38c67e5a9e
|
add fmin.[s|d] and fmax.[s|d]
|
2012-02-14 06:37:18 -08:00 |
|
Andrew Waterman
|
ee9fc10668
|
add fcvt.s.d, fcvt.d.s
|
2012-02-14 06:03:43 -08:00 |
|
Andrew Waterman
|
ce202c73d1
|
add fsgnj[n|x].[s|d]
|
2012-02-14 04:24:35 -08:00 |
|
Andrew Waterman
|
1d604bcd49
|
remove top-level Makefile
new, simpler build instructions are in the README.
note that for "make run-asm-tests-debug" you need to update your fesvr.
|
2012-02-14 02:53:43 -08:00 |
|
Andrew Waterman
|
15dc2d8c40
|
add fp writeback arbitration logic
|
2012-02-14 00:32:25 -08:00 |
|
Henry Cook
|
0671a99712
|
NBcache works with associativities other than powers of 2
|
2012-02-13 21:44:32 -08:00 |
|
Henry Cook
|
6d36168183
|
Fixed two associative nbcache bugs, one in amo replays and one in the flush unit
|
2012-02-13 21:44:32 -08:00 |
|
Andrew Waterman
|
0366465cb1
|
parameterize the scoreboards
|
2012-02-13 18:12:23 -08:00 |
|
Andrew Waterman
|
6c2d8a37ae
|
remove a partial update that makes chisel barf
chisel regards it as a combinational loop, even though it isn't.
|
2012-02-13 16:45:29 -08:00 |
|
Andrew Waterman
|
c78c738f60
|
minor cleanups
|
2012-02-13 03:13:49 -08:00 |
|
Andrew Waterman
|
b5a19a54a3
|
add fcvt.[s|d].[w|l][u]
|
2012-02-13 02:01:26 -08:00 |
|
Andrew Waterman
|
a4a9d2312c
|
add fcvt.[w|l][u].[s|d], f[eq|lt|le].[s|d]
|
2012-02-13 01:30:01 -08:00 |
|
Andrew Waterman
|
069037ff3a
|
add FP recoding
|
2012-02-12 23:31:50 -08:00 |
|
Andrew Waterman
|
25ecfb9bbc
|
clean up caches
- remove incompatible blocking D$
- remove direct-mapped nonblocking cache
|
2012-02-12 20:32:06 -08:00 |
|
Andrew Waterman
|
08b6517a23
|
add FP ops mftx, mxtf, mtfsr, mffsr
|
2012-02-12 20:12:53 -08:00 |
|
Andrew Waterman
|
9bb1558a34
|
WIP on FPU
|
2012-02-12 04:36:01 -08:00 |
|
Andrew Waterman
|
50a283d311
|
move store data generation into EX stage
doing so removes it from the critical path of FP store unrecoding.
|
2012-02-12 01:35:55 -08:00 |
|
Andrew Waterman
|
725190d0ee
|
update to new chisel
|
2012-02-11 17:20:33 -08:00 |
|
Andrew Waterman
|
f8b937d590
|
fix 32-bit divider bug
thanks, torture!
also, tidied up the code a bit.
|
2012-02-09 03:47:59 -08:00 |
|
Andrew Waterman
|
03ee49f424
|
fix 32-bit AMOs to upper halves of 64-bit words
thanks, torture!
|
2012-02-09 03:31:47 -08:00 |
|
Yunsup Lee
|
f47d888feb
|
vvcfgivl and vsetvl works
|
2012-02-09 02:35:21 -08:00 |
|
Andrew Waterman
|
92493ad153
|
fix mul/div kill bug
occasionally, an in-progress multiply or divide could be
erroneously killed, tying up the register forever.
|
2012-02-09 02:26:03 -08:00 |
|
Andrew Waterman
|
128ec567ed
|
make BTB fully associative; don't use it for JALR
JALR created a long path from the ALU in execute stage
to an address comparator to the next-PC mux. the benfit
was close to nil, anyway.
|
2012-02-09 01:34:00 -08:00 |
|
Yunsup Lee
|
fcc8081c4d
|
hook up the vector command queue
|
2012-02-09 01:28:16 -08:00 |
|
Andrew Waterman
|
8b6b0f5367
|
add external memory request interface for vec unit
|
2012-02-08 22:30:45 -08:00 |
|
Yunsup Lee
|
9285a52f25
|
initial vu integration
|
2012-02-08 21:43:45 -08:00 |
|
Andrew Waterman
|
10b5a0006c
|
fix mul/div to rd=0
|
2012-02-08 20:11:57 -08:00 |
|
Andrew Waterman
|
a1855b12c2
|
clean up queues
|
2012-02-08 17:55:05 -08:00 |
|
Andrew Waterman
|
990e3a1b34
|
fix fpu port direction bug
|
2012-02-08 15:19:26 -08:00 |
|
Andrew Waterman
|
b3f6f9a5fd
|
fix BTB misprediction check for negative addresses
also index BTB with PC, not PC+4
|
2012-02-08 15:05:28 -08:00 |
|
Andrew Waterman
|
e9da2cf66a
|
improve id/ex datapath
move operand selection into decode stage; simplify bypassing
|
2012-02-08 06:47:26 -08:00 |
|
Andrew Waterman
|
d471a8b2da
|
arbitrate for LLFU writebacks in MEM stage
|
2012-02-08 04:21:05 -08:00 |
|
Andrew Waterman
|
ebed56500e
|
fix mul/wb hazard checks
I erroneously assumed that those instructions set id_wen.
|
2012-02-08 01:56:11 -08:00 |
|
Andrew Waterman
|
5403d069e9
|
add fp loads/stores
|
2012-02-07 23:54:25 -08:00 |
|
Christopher Celio
|
1be9d15944
|
Fixed bug regarding case sensitivity regarding ioICache,ioDCache
|
2012-02-07 14:07:42 -08:00 |
|
Andrew Waterman
|
fde8e3b696
|
clean up bypassing/hazard checking a bit
|
2012-02-06 17:26:45 -08:00 |
|
Henry Cook
|
41c4e10c37
|
Workaround for another frakking extraction error in the C backend. C and VLSI backends now both boot kernel with associativity on
|
2012-02-02 21:53:57 -08:00 |
|