952 Commits

Author	SHA1	Message	Date
David Harris	cb4c3ff1ce	Simplified shipping in divshiftcalc; enhanced testbench-fp to be able to run all 32-bit tests generated by sqrttest	2022-09-21 10:35:08 -07:00
David Harris	129b9343fe	commented SpecialCase	2022-09-21 05:02:08 -07:00
David Harris	5e1932c649	Added SpecialCaseReg to hold SpecialCase for fdivsqrtpostproc	2022-09-21 04:55:43 -07:00
David Harris	f7d272c315	Gated sticky bit in fdiv with SpecialCase	2022-09-20 20:05:00 -07:00
David Harris	3b98881c4e	renamed u to udigit to avoid conflict with U	2022-09-20 19:29:23 -07:00
cturek	6e300a667e	Fixed R4 Sqrt overshifting	2022-09-21 00:05:36 +00:00
cturek	c3c764f0ba	Fixed fgen4	2022-09-20 20:00:01 +00:00
David Harris	00c15ec472	renamed q to u for unified digit selection	2022-09-20 04:35:14 -07:00
David Harris	d01588d693	Removed D2 and D2b from radix2 stage	2022-09-20 04:20:38 -07:00
David Harris	2ea7df1b6d	Simplified UM initialization	2022-09-20 04:18:12 -07:00
David Harris	0d5e80a4f0	fdivsqrtfgen4 comments	2022-09-20 04:13:21 -07:00
David Harris	653c458241	Moved fpu modules into subdirectories	2022-09-20 04:12:05 -07:00
David Harris	0ec1886b89	Partitioned fdivsqrt into one module per file and added file names to opening comments	2022-09-20 03:57:57 -07:00
David Harris	a05b6486b1	Simplified fdivsqrtpostproc QmM logic	2022-09-20 03:30:18 -07:00
David Harris	87cde2c427	make QmM size b+1 indpenedent of radix	2022-09-20 03:25:09 -07:00
David Harris	e455f41b97	clean up divshiftcalc	2022-09-20 03:19:50 -07:00
David Harris	211705eca2	clean up divshiftcalc	2022-09-20 03:17:29 -07:00
David Harris	d3b2a192eb	clean up divshiftcalc	2022-09-20 03:13:11 -07:00
David Harris	f5083803c2	clean up divshiftcalc	2022-09-20 03:08:25 -07:00
David Harris	2faa0d14be	Cleaning up divshiftcalc LOGNORMSHIFTSZ	2022-09-20 02:35:01 -07:00
Jacob Pease	1e7bbe1a87	Fixed rxfifotimeout restarting for every new character, even when already high.	2022-09-19 18:00:30 -05:00
cturek	019a6eb9f5	Radix 4 sqrt passing first two tests	2022-09-19 21:26:32 +00:00
David Harris	8e90862dad	Removed EarlyTermShift from fdiv	2022-09-19 08:44:23 -07:00
David Harris	73ceb4590c	Finished unified divsqrt otfc and fgen name changes	2022-09-19 08:30:59 -07:00
David Harris	3cf6becaf4	fdivsqrtiter simplification	2022-09-19 01:08:01 -07:00
David Harris	e840edc4e6	Reduced number of cycles needed for division	2022-09-19 01:02:04 -07:00
David Harris	d6f1453275	Cleaned up otfc4	2022-09-19 00:58:20 -07:00
David Harris	309995a6e9	OTFC simplification	2022-09-19 00:51:56 -07:00
David Harris	59b6346a28	Removed unused otfc for Q	2022-09-19 00:43:27 -07:00
David Harris	e764d4322c	fdiv cleanup	2022-09-19 00:32:34 -07:00
David Harris	cf0c20d489	Division working again for radix 2 with unified OTFC	2022-09-19 00:30:30 -07:00
David Harris	b636072914	Unified on-the-fly conversion working for radix 2; broke radix-4 division	2022-09-19 00:04:00 -07:00
David Harris	4dbe1035cb	Added 2 bits to C to initialize properly	2022-09-18 22:44:22 -07:00
David Harris	f202eb0f6f	Added 2 bits to C to initialize properly	2022-09-18 22:42:35 -07:00
Ross Thompson	cb34b7c98f	Found the ahb burst bug. ... We had instruction fetches fixed HSIZE = 2 (4 bytes) for all requests. It should be HSIZE = 3 (8 bytes) for cache fetches and 4 for uncached reads. The reason this worked for non burst is the DDR4 memory controller returns the full double word even for 4 byte reads. In burst mode the second beat ending up pointing to the next 4 bytes rather than the next 8 bytes.	2022-09-17 20:30:01 -05:00
David Harris	b74a68ff0f	Reduced number of cycles required for lower-precision sqrt	2022-09-17 09:55:34 -07:00
David Harris	ac78823f6c	Starting to adust number of cycles for division/sqrt	2022-09-17 05:58:59 -07:00
cturek	79addec27a	Fixed j1 to align with new C reg	2022-09-16 02:15:48 +00:00
David Harris	8f2b3b2387	Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main	2022-09-15 12:49:21 -07:00
David Harris	94dca9194e	renamed endianswap	2022-09-15 12:49:18 -07:00
Ross Thompson	38e114a6c0	Fixed subword read to work with bigendian.	2022-09-15 14:08:04 -05:00
David Harris	29d9ded25c	FDIVSQRT cleanup	2022-09-15 09:10:57 -07:00
Ross Thompson	cea012a640	renamed multimanager to multicontroller.	2022-09-14 14:03:37 -05:00
Ross Thompson	bf6468a24c	Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main	2022-09-14 13:59:22 -05:00
cturek	da67e02392	Added shift for radix 4 sqrt	2022-09-14 17:34:24 +00:00
cturek	47d02db2eb	Moved X-1 to preproc	2022-09-14 17:26:56 +00:00
cturek	4f3baea0fc	removed unnecessary XZero from wsmux	2022-09-14 16:59:52 +00:00
David Harris	14bbd07e63	ZMerge branch 'main' of github.com:davidharrishmc/riscv-wally into main	2022-09-14 09:42:17 -07:00
Ross Thompson	2c86badeb2	pipelining of fetch into evict AHB requests.	2022-09-13 17:51:55 -05:00
Ross Thompson	c7d3580637	Renamed signals in the LSU.	2022-09-13 11:47:39 -05:00