Commit graph

10 commits

Author SHA1 Message Date
Graham Edgecombe
460159a392 Rename rd_writeback to rd_write
This is consistent with the mem_read and mem_write naming.
2017-12-07 22:37:58 +00:00
Graham Edgecombe
36b7d33850 Read mem_{read,write}_en to mem_{read,write} 2017-12-07 22:37:58 +00:00
Graham Edgecombe
cc1f73e19e Replace pointless if with assign in the hazard unit 2017-12-07 22:37:58 +00:00
Graham Edgecombe
da26f86f25 Remove two cycle load-use stall
There's no need for it as we forward results from the writeback to the
execute stage.
2017-12-07 22:37:58 +00:00
Graham Edgecombe
0c3b91e733 Fix load-use hazard logic 2017-12-07 22:37:58 +00:00
Graham Edgecombe
0acde319b0 Stall the decode stage if it is waiting on a load 2017-12-07 22:37:58 +00:00
Graham Edgecombe
965311c1e5 Add mem_ prefix to the hazard unit's branch_taken input 2017-12-07 22:37:58 +00:00
Graham Edgecombe
9af1107041 Add comments to rv32_hazard.sv 2017-12-07 22:37:58 +00:00
Graham Edgecombe
5ec95c00a2 Flush the decode/execute stages if a branch is taken 2017-12-07 22:37:58 +00:00
Graham Edgecombe
4c2c44e94d Add initial hazard unit 2017-12-07 22:37:58 +00:00