70 Commits

Author	SHA1	Message	Date
Ross Thompson	ddde82f928	Renamed FStallD to FPUStallD.	2022-12-19 09:28:45 -06:00
David Harris	a8126458f6	Refactored stalls and flushes, including FDIV flush with FlushE	2022-12-15 10:56:18 -08:00
David Harris	643a2e7cf9	Use FPU divider for integer division when F is supported	2022-12-14 17:03:13 -08:00
David Harris	1b0f878c16	Renamed DivStartE to IFDivStartE	2022-12-02 11:30:49 -08:00
David Harris	db5f3c15a4	FPU divider working with execute stage stall	2022-12-02 11:11:53 -08:00
David Harris	be9c618c94	Renamed DivBusy to FDivBusyE in FPU	2022-11-16 10:13:27 -08:00
David Harris	128cc86254	Moved DivStartE to fdivsqrtfsm	2022-11-16 10:00:07 -08:00
David Harris	657f16dfd1	Adding start signals for integer divider to fdivsqrt	2022-09-29 16:30:25 -07:00
cturek	e8a869e0e7	Added integer inputs and flags to divsqrt	2022-09-29 23:08:27 +00:00
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	87cde2c427	make QmM size b+1 indpenedent of radix	2022-09-20 03:25:09 -07:00
David Harris	8e90862dad	Removed EarlyTermShift from fdiv	2022-09-19 08:44:23 -07:00
David Harris	2788022c22	renamed srt to fdivsqrt	2022-08-29 04:04:05 -07:00
David Harris	d72068d582	Only stall FPU to IEU on convert instructions with dependencies	2022-08-23 12:57:18 -07:00
David Harris	05aa18fe14	Cleaned up fcvt selection control to IEU and FPUIllegalInst signals	2022-08-23 12:17:19 -07:00
Ross Thompson	5efec3b1f3	Replaced FPU data replicaiton on WriteData bus with 0 extention.	2022-08-23 10:46:03 -05:00
David Harris	0e489443f2	Finished FPU-LSU interface cleanup	2022-08-22 13:43:04 -07:00
David Harris	d556adde16	Simplified FPU-LSU interface to skip IEU	2022-08-22 13:28:51 -07:00
Katherine Parry	de6ae471bc	fixed fsw problem and removed 2 bit shift from shift correction	2022-08-03 22:16:51 +00:00
Katherine Parry	8ff3a693af	regression passes fpu tests	2022-08-01 19:56:25 +00:00
Katherine Parry	b3d932cd61	divider sizes reworked to match book	2022-07-22 22:02:04 +00:00
Katherine Parry	fbe8bb2298	radix-4 division integrated into srt - not tested	2022-07-21 19:38:06 +00:00
Katherine Parry	7950a675ea	added input enables and improved forwarding	2022-07-21 01:20:06 +00:00
Katherine Parry	a30d9c6bd8	turn off 2 word store durring non-fp instructions	2022-07-20 21:57:23 +00:00
Katherine Parry	b26297e874	moved ctrl signal registers into fctrl, also a lot of code cleaning	2022-07-20 02:27:39 +00:00
Katherine Parry	514674417e	moved Se into execute stage	2022-07-19 01:10:10 +00:00
Katherine Parry	cce5fb8dfd	moved Ss to execute stage	2022-07-18 20:48:56 +00:00
Katherine Parry	0210718f19	renamed signals in ocde to match book	2022-07-18 17:31:17 +00:00
Katherine Parry	5cb9c9f319	merged floating-point radix-2 divider with radix-4	2022-07-15 20:16:59 +00:00
Katherine Parry	b874c5c05d	removed minus 1 case in rounding	2022-07-13 15:01:38 -07:00
Katherine Parry	18d7fee541	Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally	2022-07-12 22:37:20 +00:00
Katherine Parry	bea4ec078d	variable interations implemented in radix-4 divider	2022-07-11 18:30:21 -07:00
Katherine Parry	62205ebb3b	renamed FLoad2 to FStore2	2022-07-09 00:26:45 +00:00
Katherine Parry	88b4f9b40a	renamed signals in cvt and prostproc	2022-07-08 12:30:43 -07:00
Katherine Parry	75a8cea4e4	srt divider merged into fpu	2022-07-07 16:01:33 -07:00
Katherine Parry	8ac722f693	Renaming signals to match chapter	2022-07-03 12:26:22 -07:00
Katherine Parry	8f98f3bfab	added rv32 double precision stores - untested	2022-06-28 21:33:31 +00:00
Katherine Parry	a5fb60eb1a	radix-4 early termination working for special cases - not working completely	2022-06-27 20:43:55 +00:00
Katherine Parry	9eefba5b58	added denormal input handeling - radix 4	2022-06-24 19:41:40 +00:00
Katherine Parry	749d405da8	lint warning fix	2022-06-23 22:37:44 +00:00
Katherine Parry	d7a363aaa7	fixt lint error	2022-06-23 16:11:50 +00:00
Katherine Parry	1612daa294	Testfloat running division - not passing	2022-06-23 00:07:34 +00:00
Katherine Parry	03d823f5d7	added fld in rv32 - needs testing	2022-06-20 22:53:13 +00:00
Katherine Parry	674c31ce59	fixed acciedental critical path in FPU	2022-06-14 00:02:38 +00:00
Katherine Parry	5f7072bd96	postprocessing unit created and passing all tests	2022-06-13 22:47:51 +00:00
Katherine Parry	eb93bd46d7	fma synth warnings and errors removed	2022-06-06 16:06:04 +00:00
Katherine Parry	ccda4c771e	fpu paramaterized - except fdivsqrt	2022-06-02 19:50:28 +00:00
Katherine Parry	74b549ddc8	paramerterized some small fma units	2022-06-01 23:34:29 +00:00
Katherine Parry	707067548f	unpacker optimizations	2022-06-01 16:52:21 +00:00
David Harris	99da6537cc	Removed normalized output from unpack and simplified interface	2022-05-31 21:32:31 +00:00