Andrew Waterman
e76892f758
remove more global constants
2012-11-06 02:55:45 -08:00
Andrew Waterman
c5b93798fb
factor out more global constants
2012-11-05 23:52:32 -08:00
Andrew Waterman
5b20ed71be
move rd=0 check into bypass logic
...
before, the check was in the write enable logic, but moving it obviated
an awkward corner case for mtpcr with rd=0.
2012-11-05 01:30:57 -08:00
Andrew Waterman
7380c9fe60
aggressively clock gate int and fp datapaths
2012-11-04 16:40:14 -08:00
Henry Cook
88ac5af181
Merged consts-as-traits
2012-10-16 16:32:35 -07:00
Andrew Waterman
197154c485
use BTB for JALR
2012-10-16 02:24:37 -07:00
Andrew Waterman
661f8e635b
merge I$, ITLB, BTB into Frontend
2012-10-16 02:24:37 -07:00
Henry Cook
dfdfddebe8
constants as traits
2012-10-07 22:20:03 -07:00
Henry Cook
b5ff436092
decode constant object split into multiple objects
2012-10-05 15:50:42 -07:00
Andrew Waterman
4e44ed7400
allow back pressure on IPI requests
2012-07-17 22:55:40 -07:00
Huy Vo
fd95159837
INPUT/OUTPUT orderring swapped
2012-07-12 18:16:57 -07:00
Huy Vo
c975c21e44
views removed
2012-06-06 12:51:26 -07:00
Huy Vo
7408c9ab69
removing wires
2012-05-24 10:42:39 -07:00
Andrew Waterman
faee45bf4c
fix setpcr/clearpcr not writing rd
2012-05-21 07:25:35 -07:00
Gage W Eads
d0bc995c88
Fixed IRQ_IPI -> IRQ_TIMER typo
2012-05-14 22:25:12 -07:00
Henry Cook
622a801bb1
Refactored cpu/cache interface to use nested bundles
2012-05-02 11:54:28 -07:00
Andrew Waterman
65ff397122
improved instruction decoding
...
it now makes use of don't-cares by performing logic minimization
2012-05-01 20:16:36 -07:00
Huy Vo
c9c3bd02bc
kill mem stage if fpu nacks in mem stage
2012-04-01 17:02:32 -07:00
Andrew Waterman
7f254d9670
refine FP bugfixes
2012-04-01 14:52:33 -07:00
Huy Vo
c7c35322c2
two bug fixes to fpu
2012-03-31 22:23:51 -07:00
Andrew Waterman
452876af37
fence on vvcfg; implement fence.v.g correctly
2012-03-27 14:49:00 -07:00
Andrew Waterman
54fa6f660d
new supervisor mode
2012-03-24 13:03:31 -07:00
Yunsup Lee
aaed0241af
get rid of vxcptwait
2012-03-21 15:09:04 -07:00
Yunsup Lee
023734175d
now fence stalls in decode
2012-03-20 17:10:05 -07:00
Yunsup Lee
e450e3aa40
fix irt counter bug regarding vector stuff
2012-03-20 17:09:54 -07:00
Yunsup Lee
c036fff79c
fix id interrupt signal
2012-03-19 15:13:57 -07:00
Yunsup Lee
264732556f
fixes to match verilog X semantics
2012-03-19 03:10:00 -07:00
Andrew Waterman
bd27d0fab2
can now take interrupts on stalled instructions
2012-03-19 01:02:06 -07:00
Andrew Waterman
c4a91303fb
update vector fence names and encoding
2012-03-18 20:42:38 -07:00
Yunsup Lee
b793d63182
no vector interrupt masking
2012-03-17 23:01:06 -07:00
Yunsup Lee
b19d783fbd
add vector irq handler
2012-03-14 14:15:28 -07:00
Yunsup Lee
040d62f372
refactored vector exception handling interface
2012-03-13 23:45:34 -07:00
Yunsup Lee
5655dbd5da
add vvcfg and vtcfg instructions
2012-03-13 23:45:34 -07:00
Yunsup Lee
1ba5e7b865
changes to the vector exception interface
2012-03-11 21:38:47 -07:00
Yunsup Lee
e42a4c767e
don't stall on vector fences, keep replaying
2012-03-11 16:29:19 -07:00
Yunsup Lee
44ff22a26f
vector exception handler now handles prefetches correctly
2012-03-10 12:54:36 -08:00
Andrew Waterman
85504f0ddc
fix bug in fence.i and improve test
2012-03-09 03:26:05 -08:00
Yunsup Lee
8acbe98f53
change how fence.*.cv works, now control processor stalls on the fence instruction
2012-03-08 23:32:31 -08:00
Yunsup Lee
e28a551368
refactor code related to vector exceptions
...
- revisied interfaces
- new instructions
2012-03-03 15:15:00 -08:00
Yunsup Lee
8678b3d70c
clean up ioDecoupled/ioPipe interface
2012-03-01 20:48:46 -08:00
Yunsup Lee
c7b01230f4
fix mul/div when waddr=0, can't believe torture didn't find this one
2012-03-01 10:15:27 -08:00
Andrew Waterman
e12b9eae93
remove ext_mem interface
...
hindsight is 20/20
2012-02-26 18:53:39 -08:00
Yunsup Lee
94ba32bbd3
change package name and sbt project name to rocket
2012-02-25 17:09:26 -08:00
Yunsup Lee
a1600d95db
fix bug related to waddr and wdata in wb stage
...
for the instructions which don't use waddr/wdata for writeback, the contents were getting overwritten by the ll ops
it manifested itself after cp imul were sharing the alu with the vu
2012-02-25 12:21:10 -08:00
Yunsup Lee
137fd62007
refactor cpfences
2012-02-25 12:20:36 -08:00
Andrew Waterman
4121fb178c
clean up mul/div interface; use VU mul if HAVE_VEC
2012-02-24 19:22:35 -08:00
Andrew Waterman
b3a3289d34
fix (?) external memory request nack interface
2012-02-24 01:42:33 -08:00
Yunsup Lee
63939efd0c
fix ctrl vec iface hookup - final
2012-02-23 23:03:44 -08:00
Yunsup Lee
bf1e643913
fix ctrl vec iface hookup
2012-02-23 22:55:25 -08:00
Andrew Waterman
6ceaa0e80a
correct and simplify replay_next logic
2012-02-23 16:52:52 -08:00
