Commit Graph

18 Commits

Author SHA1 Message Date
James E. Stine
cff08adc3a Added some updates to divider - still not working all the time. Still a bug with signals within muldiv - specificaly MultDivE being modified during Execute stage. Seems to be triggered by ahblite signal. 2021-04-02 06:27:37 -05:00
ushakya22
6b9ae41302 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-30 15:25:07 -04:00
Shreya Sanghai
eb86bfc084 removed unnecesary PC registers in ifu 2021-03-18 16:31:21 -04:00
David Harris
42275e92ed Initial untested implementation of AMO instructions 2021-03-11 00:11:31 -05:00
Ross Thompson
66e84f3a2c Merge branch 'bp' into main
Concerns:
1. I don't think the correct data buses are going to the multiplier.
2. I'm not sure the FlushF signal is correct.
2021-03-04 13:35:46 -06:00
David Harris
2543c29839 Initial (untested) implementation of lr and sc 2021-03-01 00:09:45 -05:00
Ross Thompson
7592a0dacb Shreya and I found a bug with the exeuction of JAL and JALR instructions. The link was only set in the writeback stage. Once the branch predictor started correctly predicting JAL(R)s the ALU and forwarding logic need to have the PCLinkE at the execution stage in case an instruction in the next two clocks need the data. 2021-02-26 20:12:27 -06:00
David Harris
cf03afa880 Eliminated flushing pipeline on CSR reads 2021-02-26 17:00:07 -05:00
David Harris
015b632eb1 Cleaned out unused signals 2021-02-26 09:17:36 -05:00
David Harris
d00d42cf9a Merged bus into main 2021-02-25 00:28:41 -05:00
David Harris
8dec69c2ce Added MUL 2021-02-15 22:27:35 -05:00
David Harris
3551cc859b Data memory bus integration 2021-02-07 23:21:55 -05:00
David Harris
d56d7a75a6 Rename ifu/dmem/ebu signals to match uarch diagram 2021-02-02 15:09:24 -05:00
David Harris
4fbb5f0f1b Cleaned up hazard interface 2021-02-02 13:53:13 -05:00
David Harris
c23afbda3a Moved LoadStall generation to IEU 2021-02-02 13:42:23 -05:00
David Harris
aad1d3d7dd Moved writeback pipeline registers from datapth into DMEM and CSR 2021-02-02 13:02:31 -05:00
David Harris
9d7e242596 Moved fpu to temporary location to fix compile and cleaned up interface formatting 2021-02-01 23:44:41 -05:00
David Harris
396cea1ea7 Reorganized src hierarchically 2021-01-30 11:50:37 -05:00