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Code Issues Releases Wiki Activity
181 Commits 11 Branches 9 Tags
Commit Graph

66 Commits

Author SHA1 Message Date
Olof Kindgren
7f16f17ca5 Optimize CSR immediate handling 2020-02-19 10:02:48 +01:00
Olof Kindgren
36746d3890 Remove unused signals 2020-02-17 23:01:49 +01:00
Olof Kindgren
5aa1fbe709 Stop depending on run state 2019-12-08 22:51:28 +01:00
Olof Kindgren
6067b0e684 Use one-hot encoding for ALU rd sel 2019-12-07 23:36:36 +01:00
Olof Kindgren
98bfcc3b62 Remove unused jalr signal 2019-10-30 09:07:58 +01:00
Olof Kindgren
75decc8251 Bring back old immediate decoder 
This was originally thrown out since it was slow and cost too much
resources. Due to other changes in the core, it is now cheaper
than the other one
 2019-10-29 21:54:22 +01:00
Olof Kindgren
574464a33b De-pipeline alu_result_sel 2019-10-29 21:53:13 +01:00
Olof Kindgren
2b5c71fe9b Gate mem_rd in mem_if 2019-09-26 23:31:23 +02:00
Olof Kindgren
7bd89deb41 Simplify mret/csr address generation 2019-09-26 23:09:22 +02:00
Olof Kindgren
bad823ff6d Fix syntax error for o_take_branch 2019-09-26 22:59:46 +02:00
Olof Kindgren
5a44634ee5 Avoid exposing funct3 from decode 2019-09-15 23:50:02 +02:00
Olof Kindgren
9575eb4fef Separate decode and state 2019-09-15 23:25:10 +02:00
Olof Kindgren
7289a68f6e Separate state from o_bufreg_loop 2019-09-14 22:52:41 +02:00
Olof Kindgren
c0a177aebe Simplify o_alu_cmp_uns 2019-09-14 22:21:25 +02:00
Olof Kindgren
1248043a39 Separate state and decode from CSR signals 2019-09-14 22:18:03 +02:00
Olof Kindgren
ef3fc9274d Rename misleading signal names 2019-09-13 23:30:46 +02:00
Olof Kindgren
8dc137fb07 Kill of mem_init and mem_en 2019-09-13 23:30:46 +02:00
Olof Kindgren
e20e0eef8f Optimize dbus_cyc 2019-09-13 23:30:46 +02:00
Olof Kindgren
a0ba84096a Simplify csr stuff 2019-09-13 23:30:46 +02:00
Olof Kindgren
7425128dd8 Pass imm offsets through bufreg 2019-09-13 23:30:46 +02:00
Olof Kindgren
d2cf7e547a Interrupt refactoring 2019-08-25 22:47:29 +02:00
Olof Kindgren
fb7c6c1458 Simplify csr_en logic 2019-07-23 12:10:38 +02:00
Olof Kindgren
31852f175d Simplify alu_cmp_eq control logic 2019-07-23 12:10:38 +02:00
Olof Kindgren
af3b82f9ac Optimize take_branch condition 2019-07-23 12:10:38 +02:00
Olof Kindgren
16c93a58ee Move mepc and mtval into RF memory 2019-07-08 07:49:58 +02:00
Olof Kindgren
e107627e71 Reduce warnings 2019-06-24 15:22:08 +02:00
Olof Kindgren
bad78b0bd7 Declare wires before use 2019-06-24 13:18:34 +02:00
Olof Kindgren
a550137453 Use bufreg for shifter 2019-03-20 08:35:43 +01:00
Olof Kindgren
9a97c535bd Use ring buffer for counter LSBs 2019-01-15 08:00:32 +01:00
Olof Kindgren
6f4c85f16d Optimize alu_sub control flag 2019-01-15 08:00:32 +01:00
Olof Kindgren
45f6d408f8 Remove dead code 2019-01-15 08:00:32 +01:00
Olof Kindgren
3a68cc0e77 Improve critical path in ctrl 2019-01-15 08:00:32 +01:00
Olof Kindgren
813f9f4951 Rewrite CSR selection 2019-01-10 18:15:20 +01:00
Olof Kindgren
8ae05ea4cf Rewrite immediate decoder 2018-12-25 13:13:04 +01:00
Olof Kindgren
78821c16b3 Optimize op_b selector 2018-12-25 13:13:04 +01:00
Olof Kindgren
e3e616903e Optimize bool operations 2018-12-25 13:13:04 +01:00
Olof Kindgren
4a224fc985 Fix failing compliance tests 2018-12-13 12:03:42 +01:00
Olof Kindgren
3f5c25d8f2 Silence LSE warnings 2018-12-12 21:20:44 +01:00
Olof Kindgren
09bb05071e Fix bugs and missing resets to pass formal 2018-12-11 22:05:32 +01:00
Olof Kindgren
cd983190b3 Interrupts working. Adding philosophers example 2018-11-26 23:03:40 +01:00
Olof Kindgren
11a2195146 First attempt att interrupt support 2018-11-26 16:01:07 +01:00
Olof Kindgren
12039dec0e Add support for setting memory contents during synthesis 2018-11-26 09:49:08 +01:00
Olof Kindgren
e1f5bcc4f3 Rewrite register file 2018-11-26 00:09:52 +01:00
Olof Kindgren
a974320f46 Further optimizations 2018-11-23 21:26:49 +01:00
Olof Kindgren
b8f5133267 Random optimizations 2018-11-23 13:59:07 +01:00
Olof Kindgren
1bbf8e3ce9 Synthesis fixes 2018-11-22 20:58:45 +01:00
Olof Kindgren
fa8def6e7a Rewrite immediate decoding 2018-11-22 13:02:51 +01:00
Olof Kindgren
9df2a0060b Use custom interconnect. Runs on hw 2018-11-21 13:15:33 +01:00
Olof Kindgren
7666ac4092 synthesized netlist works 2018-11-18 13:05:38 +01:00
Olof Kindgren
f66f82a57a Add explicit wire defs to ports 2018-11-17 21:30:03 +01:00