41 Commits

Author	SHA1	Message	Date
Ross Thompson	68e39eeb66	Fixed another bug in the btb.	2023-02-20 17:54:22 -06:00
Ross Thompson	5187c78184	Fixed forwarding bug in the BTB.	2023-02-20 17:03:45 -06:00
Ross Thompson	1982c66b72	Simiplified BTB.	2023-02-20 15:39:42 -06:00
David Harris	081a817925	Merge pull request #98 from ross144/main ... New gshare implementation	2023-02-20 11:27:47 -08:00
David Harris	a59526fc8e	Fixed IROM size parameters	2023-02-20 05:32:43 -08:00
David Harris	1d3b41e0fb	New expression for BTB_SIZE to avoid error during sky90 synthesis	2023-02-20 04:02:00 -08:00
Ross Thompson	2d417c33a4	Simplified BTB by removing the valid bit. the instruction class provides the equivalent information.	2023-02-19 23:53:20 -06:00
Ross Thompson	0d79c0cebe	Merge branch 'main' of https://github.com/openhwgroup/cvw	2023-02-19 22:54:27 -06:00
Ross Thompson	b32093b33b	Simplified branch predictor.	2023-02-19 22:49:48 -06:00
David Harris	0ac9c9e62a	Added BTB_SIZE parameter independent of BPRED_SIIZE	2023-02-19 20:13:50 -08:00
David Harris	5b197f4f9d	Parameterized btb to depend on BPRED_SIZE	2023-02-19 19:59:07 -08:00
Ross Thompson	9ee48637dc	Possibly much better branch predictor implemention. ... The complexity is significantly reduced.	2023-02-19 00:17:37 -06:00
Ross Thompson	d44cb1febb	Minor fix.	2023-02-18 23:55:46 -06:00
David Harris	0eda753dc4	Removed unused PredInstrClassE register from bpred	2023-02-18 05:59:25 -08:00
Ross Thompson	0cacfbd322	Renamed globalhistory predictor.	2023-02-17 16:08:34 -06:00
Ross Thompson	2f1bebfd57	Fixed global history predictor.	2023-02-17 16:05:48 -06:00
Ross Thompson	a95be0b567	More updates.	2023-02-17 15:53:49 -06:00
Ross Thompson	df4a27a2e3	Updated global history predictor.	2023-02-17 15:53:15 -06:00
Ross Thompson	0d271130b9	Fixed a branch predictor performance issue.	2023-02-17 15:37:03 -06:00
Ross Thompson	a325adf1be	Fixed bug with branch predictor.	2023-02-17 10:57:50 -06:00
Ross Thompson	094b307724	Merge branch 'main' of github.com:ross144/cvw	2023-02-13 18:54:07 -06:00
Ross Thompson	9c9acc0055	Updated gshare (no speculation) to have better performance.	2023-02-13 18:52:52 -06:00
Ross Thompson	33d2bf84f8	More fixeds to global history.	2023-02-13 18:08:51 -06:00
Ross Thompson	a579bbcdd1	Fixed global history predictor.	2023-02-13 18:08:13 -06:00
Ross Thompson	bbc6095260	Updated global history predictor.	2023-02-13 18:07:32 -06:00
Ross Thompson	9f25b53b36	Fixed bug in basic gshare implementation. Should be a better comparison to the speculative versions now.	2023-02-13 17:57:05 -06:00
Ross Thompson	b298a8afc5	Created copy of gshare. I think there may be a simpler implementation.	2023-02-13 17:29:51 -06:00
Ross Thompson	a80dbd3aec	Further branch predictor improvements.	2023-02-13 17:23:56 -06:00
Ross Thompson	717cba270c	Partial improvement.	2023-02-13 17:10:24 -06:00
Ross Thompson	f4af38a004	Hacked commit. Fixes the gshare bugs introduced last week. ... Need to recover the good changes in the next commit.	2023-02-13 16:14:17 -06:00
Ross Thompson	1d74663f42	Partial fix for gshare bugs from the last two weeks.	2023-02-13 11:57:25 -06:00
Ross Thompson	58749a8c57	Removed another bit from btb class.	2023-02-12 11:33:43 -06:00
Ross Thompson	1e0667db1d	More simplifications to the BP.	2023-02-10 17:09:35 -06:00
Ross Thompson	9c4da7381f	Experimental branch prediction optimization.	2023-02-10 15:45:56 -06:00
Ross Thompson	c229f0064e	Modified branch predictor to use InstrValidE and InstrValidD rather than the more complex InstrClassE | WrongClassE logic.	2023-02-10 10:33:10 -06:00
Ross Thompson	282ffd1313	RAS and RAS documentation now consistent.	2023-02-10 09:06:51 -06:00
Ross Thompson	faf7cd8c8a	Updated globalhistory predictor.	2023-02-09 14:48:02 -06:00
Ross Thompson	996bb289d3	Simplified branch predictor.	2023-02-08 18:24:38 -06:00
Ross Thompson	7263fab4b1	Branch predictor cleanup.	2023-02-07 14:01:59 -06:00
David Harris	b13087e706	Fixed merge issues on synthDC PR	2023-02-04 04:13:40 -08:00
David Harris	99d179dd3e	Removed pipelined level of hierarchy	2023-02-02 14:14:11 -08:00