73 Commits

Author	SHA1	Message	Date
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