Commit Graph

33 Commits

Author SHA1 Message Date
Katherine Parry
65eca433b6 All compare instructions pass imperas tests 2021-05-27 15:23:28 -04:00
Katherine Parry
03aea055fa FMV.X.D imperas test passes 2021-05-24 14:44:30 -04:00
Katherine Parry
71e4a10efb FMV.D.X imperas test passes 2021-05-20 22:17:59 -04:00
bbracker
535046e494 small synthesis fixes 2021-05-04 15:21:01 -04:00
Ross Thompson
9e40fb072c Merge branch 'tests' into icache-almost-working 2021-04-25 21:25:36 -05:00
James E. Stine
9026357350 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
ba01d57767 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-03-30 15:25:07 -04:00
Ross Thompson
cdb7d15709 Fixed bugs with the csr interacting with StallW. StallW is required to pervent updating a csr. Now have a working branch predictor and performance counters to track the number of commited branches and mispredictions. 2021-03-24 15:56:55 -05:00
Shreya Sanghai
f35d3b39c8 removed unnecesary PC registers in ifu 2021-03-18 16:31:21 -04:00
David Harris
d4e84c58ed 64-bit AMO debugged 2021-03-11 23:18:33 -05:00
David Harris
fe4d288589 Initial untested implementation of AMO instructions 2021-03-11 00:11:31 -05:00
David Harris
bea8ac6d59 WALLY-LRSC atomic test passing 2021-03-09 09:28:25 -05:00
Ross Thompson
619bbd9d83 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
6f4e8b723e Initial (untested) implementation of lr and sc 2021-03-01 00:09:45 -05:00
Ross Thompson
6191fcb1af 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
73920282af Eliminated flushing pipeline on CSR reads 2021-02-26 17:00:07 -05:00
David Harris
0258901865 Cleaned out unused signals 2021-02-26 09:17:36 -05:00
David Harris
f57096a5d2 Restored to working multiplier after Lab 2 2021-02-25 15:32:43 -05:00
David Harris
cd4ba8831c Merged bus into main 2021-02-25 00:28:41 -05:00
David Harris
492ec0ee78 Removed multiplier for lab 2 2021-02-17 16:06:16 -05:00
David Harris
a7dd20b388 Multiply instructions working 2021-02-17 15:29:20 -05:00
David Harris
adc5d5bc1a Added MUL 2021-02-15 22:27:35 -05:00
David Harris
33110ed636 Data memory bus integration 2021-02-07 23:21:55 -05:00
David Harris
2a80bcf543 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2021-02-02 19:44:43 -05:00
David Harris
756352f129 Minor tweaks 2021-02-02 19:44:37 -05:00
Noah Boorstin
b5f474d9f5 same thing but do that right this time 2021-02-02 21:47:15 +00:00
Noah Boorstin
6dd5c42d55 change undefined syntax in extend.sv
don't need verilator execption anymore
2021-02-02 21:39:20 +00:00
David Harris
429f48e766 Rename ifu/dmem/ebu signals to match uarch diagram 2021-02-02 15:09:24 -05:00
David Harris
616830a3f0 Cleaned up hazard interface 2021-02-02 13:53:13 -05:00
David Harris
229bde5953 Moved LoadStall generation to IEU 2021-02-02 13:42:23 -05:00
David Harris
bb83fda1d8 Moved writeback pipeline registers from datapth into DMEM and CSR 2021-02-02 13:02:31 -05:00
David Harris
92bf1674b4 Moved fpu to temporary location to fix compile and cleaned up interface formatting 2021-02-01 23:44:41 -05:00
David Harris
07af481b67 Reorganized src hierarchically 2021-01-30 11:50:37 -05:00