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Commit Graph

138 Commits

Author SHA1 Message Date
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
Andrew Waterman
f939088be1 move datapath control signals into control unit
because that's where control signals go
2012-02-23 16:52:52 -08:00
Andrew Waterman
7c929afe2b HTIF now controls CPU reset 2012-02-22 19:30:03 -08:00
Andrew Waterman
7034c9be65 new htif protocol and implementation
You must update your fesvr and isasim!
2012-02-19 23:15:45 -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
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
15dc2d8c40 add fp writeback arbitration logic 2012-02-14 00:32:25 -08:00
Andrew Waterman
0366465cb1 parameterize the scoreboards 2012-02-13 18:12:23 -08:00