91 Commits

Author	SHA1	Message	Date
Ross Thompson	6eefa5b1e3	Fixed another bug in the btb.	2023-02-20 17:54:22 -06:00
Ross Thompson	d2b7047744	Fixed forwarding bug in the BTB.	2023-02-20 17:03:45 -06:00
Ross Thompson	545af7697f	Simiplified BTB.	2023-02-20 15:39:42 -06:00
David Harris	36b2d530c4	Merge pull request #98 from ross144/main ... New gshare implementation	2023-02-20 11:27:47 -08:00
David Harris	626715befd	Fixed IROM size parameters	2023-02-20 05:32:43 -08:00
David Harris	472c7da399	New expression for BTB_SIZE to avoid error during sky90 synthesis	2023-02-20 04:02:00 -08:00
Ross Thompson	4db249ca5d	Simplified BTB by removing the valid bit. the instruction class provides the equivalent information.	2023-02-19 23:53:20 -06:00
Ross Thompson	407d9e7b4a	Merge branch 'main' of https://github.com/openhwgroup/cvw	2023-02-19 22:54:27 -06:00
Ross Thompson	0f98cfe5b4	Simplified branch predictor.	2023-02-19 22:49:48 -06:00
David Harris	d07c6386b2	Added BTB_SIZE parameter independent of BPRED_SIIZE	2023-02-19 20:13:50 -08:00
David Harris	20ced0653c	Parameterized btb to depend on BPRED_SIZE	2023-02-19 19:59:07 -08:00
Ross Thompson	89aa57e25e	Possibly much better branch predictor implemention. ... The complexity is significantly reduced.	2023-02-19 00:17:37 -06:00
Ross Thompson	9f997eb5d0	Minor fix.	2023-02-18 23:55:46 -06:00
David Harris	92d4acf118	Removed unused PredInstrClassE register from bpred	2023-02-18 05:59:25 -08:00
Ross Thompson	ae8b01b8d4	Renamed globalhistory predictor.	2023-02-17 16:08:34 -06:00
Ross Thompson	2661ec97d8	Fixed global history predictor.	2023-02-17 16:05:48 -06:00
Ross Thompson	a98a85f144	More updates.	2023-02-17 15:53:49 -06:00
Ross Thompson	1d9335c934	Updated global history predictor.	2023-02-17 15:53:15 -06:00
Ross Thompson	e0a8974c7d	Fixed a branch predictor performance issue.	2023-02-17 15:37:03 -06:00
Ross Thompson	3398c5156b	Fixed bug with branch predictor.	2023-02-17 10:57:50 -06:00
Ross Thompson	911023f441	Merge branch 'main' of github.com:ross144/cvw	2023-02-13 18:54:07 -06:00
Ross Thompson	fc3baa6846	Updated gshare (no speculation) to have better performance.	2023-02-13 18:52:52 -06:00
Ross Thompson	f3c8c6e60a	More fixeds to global history.	2023-02-13 18:08:51 -06:00
Ross Thompson	6ea830cf44	Fixed global history predictor.	2023-02-13 18:08:13 -06:00
Ross Thompson	3847d9e39a	Updated global history predictor.	2023-02-13 18:07:32 -06:00
Ross Thompson	1ab2d0d19b	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	c18ac35332	Created copy of gshare. I think there may be a simpler implementation.	2023-02-13 17:29:51 -06:00
Ross Thompson	10b45ed6c7	Further branch predictor improvements.	2023-02-13 17:23:56 -06:00
Ross Thompson	1cfdd201a5	Partial improvement.	2023-02-13 17:10:24 -06:00
Ross Thompson	0165fd54b4	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	716fbca2b1	Partial fix for gshare bugs from the last two weeks.	2023-02-13 11:57:25 -06:00
Ross Thompson	51158e94ba	Removed another bit from btb class.	2023-02-12 11:33:43 -06:00
Ross Thompson	91fc883f6a	More simplifications to the BP.	2023-02-10 17:09:35 -06:00
Ross Thompson	6fbca64eb7	Experimental branch prediction optimization.	2023-02-10 15:45:56 -06:00
Ross Thompson	ca0eb5a591	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	91427ed72d	RAS and RAS documentation now consistent.	2023-02-10 09:06:51 -06:00
Ross Thompson	2d7749db7f	Updated globalhistory predictor.	2023-02-09 14:48:02 -06:00
Ross Thompson	962c018991	Simplified branch predictor.	2023-02-08 18:24:38 -06:00
Ross Thompson	0678f3f2b7	Branch predictor cleanup.	2023-02-07 14:01:59 -06:00
David Harris	6b9ae4fc89	Fixed merge issues on synthDC PR	2023-02-04 04:13:40 -08:00
David Harris	78eb90715c	Removed pipelined level of hierarchy	2023-02-02 14:14:11 -08:00