130 Commits

Author	SHA1	Message	Date
David Harris	463a1e2b33	Fixed fdivsqrt to avoid going from done to busy without going through idle first	2023-04-12 02:48:40 -07:00
David Harris	19c39628fa	Division cleanup	2023-04-06 21:42:34 -07:00
David Harris	6db65f30b1	Simplified integer division preprocessing in fdivsqrt	2023-04-06 16:43:28 -07:00
Marcus Mellor	fd08ff2e60	Merge branch 'main' of https://github.com/openhwgroup/cvw	2023-03-31 10:29:10 -05:00
Marcus Mellor	09b2cd304f	Address comments in openhwgroup/cvw#180	2023-03-31 09:51:33 -05:00
Marcus Mellor	3afd963a9e	Disable coverage for branches tested in fpu.s	2023-03-30 19:44:55 -05:00
David Harris	f34218666a	fctrl updated and buildroot working again	2023-03-30 13:17:15 -07:00
David Harris	9129c3ac22	fctrl continued cleanup	2023-03-30 13:07:39 -07:00
David Harris	01c5d58a64	fctrl continued cleanup	2023-03-30 13:05:56 -07:00
David Harris	b2a102ce79	Started to clean up fctrl	2023-03-30 12:57:14 -07:00
David Harris	f2c24b869d	Simplified fctrl	2023-03-28 21:13:48 -07:00
David Harris	64bf9510ad	Added support (untested) for half and quad conversions	2023-03-28 10:53:06 -07:00
David Harris	36a0d35ae5	fixed fp->fp conversions	2023-03-28 10:35:41 -07:00
David Harris	4e50cc3379	support more fp -> fp conversions	2023-03-28 10:28:01 -07:00
David Harris	074fd1d9c3	Fixed fmv decoder	2023-03-28 10:21:33 -07:00
Ross Thompson	46b1bca4fc	Fixed all tap/space issue in RTL.	2023-03-24 17:32:25 -05:00
David Harris	cb261731f2	FPU detect illegal instructions	2023-03-24 08:12:32 -07:00
David Harris	c8ea5afe25	Removed unnecessary XZero from fdivsqrt	2023-03-23 17:25:59 -07:00
David Harris	77ba71be71	editorconfig to specify tabs/spaces. Fixed some tabs. Turn off coverage to speed up simulation	2023-03-07 06:31:40 -08:00
David Harris	316b8b2250	Refactored Floating point division special case detection to avoid spurious trigger on Y for sqrt)	2023-03-02 20:00:47 -08:00
David Harris	b59df0fca7	Fixed Issue #65 fmv sign selection. Sign needs to come from most significant bit of raw X source without doing NaN Box fixes first.	2023-02-21 09:57:57 -08:00
David Harris	a445e53e8d	Fixed Issue #106: fld rasies load access fault instead of illegal instruction. The IEU controller had considered all fp loads and stores to be legal regardless of whether the FPU is enabled or the type is supported. Merged illegal instruction detection from both units into the Decode stage, saving two bits of pipeline register as well.	2023-02-21 09:32:17 -08:00
David Harris	8db49c83c4	Disabled W64M register for RV32	2023-02-19 07:03:31 -08:00
David Harris	1af99c7aee	Removed unused weq0M register fron fdivsqrtpostproc	2023-02-18 05:57:39 -08:00
David Harris	adc22235be	Fixed issue #57 of sign selection for improperly NaN-boxed number	2023-02-18 05:34:40 -08:00
David Harris	7923d32c3a	Fixed unpacking of illegal NaN box. Fixed issue #56 of sign injection NaN	2023-02-18 05:25:38 -08:00
David Harris	63a6567ed3	Created PostBox signal to NaN-box malformed NaNs of excess length. Fixes Issue #55	2023-02-17 20:51:43 -08:00
David Harris	43668a3fc5	Developing debug test	2023-02-04 08:31:47 -08:00
David Harris	e831baf335	Improved illegal NaN-box detection and formatted fsgninj	2023-02-04 03:42:20 -08:00
David Harris	78eb90715c	Removed pipelined level of hierarchy	2023-02-02 14:14:11 -08:00