52 Commits

Author	SHA1	Message	Date
David Harris	fd0c9e973d	Coverage improvements in ieu, hazard units	2023-03-31 08:33:46 -07:00
Ross Thompson	46b1bca4fc	Fixed all tap/space issue in RTL.	2023-03-24 17:32:25 -05:00
David Harris	576545e328	ALUControl Elimination	2023-03-24 08:10:48 -07:00
David Harris	f648be8ee2	Merged ALUOp into ALUControl to simplify ALU mux	2023-03-24 07:28:42 -07:00
David Harris	e8d6073eca	BMU simplifications	2023-03-24 06:18:06 -07:00
David Harris	f2864c7305	Merged BMU	2023-03-23 17:24:40 -07:00
Kevin Kim	8e67c64e2c	fixed rori rv32 bug	2023-03-23 16:06:46 -07:00
David Harris	4e1bf6fbe0	Improved IEU and bitmanip test coverage	2023-03-23 14:24:41 -07:00
David Harris	121d1cea62	Added csrwrites.S test case for privileged tests	2023-03-23 10:55:32 -07:00
Kevin Kim	efa9f09864	updated header comments to indicate chapter 15	2023-03-22 10:31:21 -07:00
Kevin Kim	e9f90050d5	min/max mux optimize	2023-03-22 10:25:54 -07:00
Kevin Kim	0d0d3b981e	more checks in bitmanip decode	2023-03-10 17:17:24 -08:00
Kevin Kim	f29e8932a2	more comprehensive illegal b instr. check	2023-03-09 12:44:51 -08:00
Kevin Kim	f335d08bbf	fixed bmu bug ... - accidentally deleted count instruction decode	2023-03-09 12:35:42 -08:00
Kevin Kim	7002221dec	cleaner bmu decode logic	2023-03-08 16:22:43 -08:00
Kevin Kim	26cb1857f3	specifc instruction handling for B's ... - Added BALUSrcBD, BaseALUSrcB for distinguishing between base instruction I/IW and Bitmanip instruction I/IW	2023-03-07 13:58:08 -08:00
Kevin Kim	ee66b5fb4a	formatting ... - reverted back to ALUResult signal in alu.sv	2023-03-06 06:19:01 -08:00
Kevin Kim	8f3acedec8	formatted files	2023-03-06 05:52:08 -08:00
Kevin Kim	fb529e1640	updated license header	2023-03-06 05:41:53 -08:00
Kevin Kim	696cfb6949	zbb result select mux structural	2023-03-05 14:57:30 -08:00
Kevin Kim	0f2360f0d7	bug in bctrl ... - deleted the min/minu decoding for some reason.	2023-03-04 23:56:33 -08:00
Kevin Kim	6b25c64a1f	BSelect from OH encoding to Binary	2023-03-04 23:19:31 -08:00
Kevin Kim	9494cf9340	removed rotate signal in datapath and instead packed into the new BALUControl Signal ... - BALUControl contains Rotate, Mask, PreShift signals to select from the respective generation muxes in the ALU	2023-03-04 22:44:03 -08:00
Kevin Kim	72de867e65	Rotate signal now gets generated in bmu ctrl	2023-03-03 22:57:49 -08:00
Kevin Kim	8dd39fbcfb	b controller generates comparison signed flag and controller branch signed logic updated accordingly	2023-03-03 17:12:29 -08:00
Kevin Kim	9cad890c1a	comments to bctrl	2023-03-03 08:41:47 -08:00
Kevin Kim	19410b4196	migrated B-subarith logic into b controller	2023-03-03 08:40:29 -08:00
Kevin Kim	c9bd37c92b	formatting	2023-03-02 15:28:43 -08:00
Kevin Kim	05b329dd6a	added bitmanip illegal instruction signal	2023-03-02 15:09:55 -08:00
Kevin Kim	b0307f5082	formatted bmu decoder	2023-03-02 13:45:15 -08:00
Kevin Kim	b81a5e4452	added BRegWriteE signal	2023-03-02 12:15:22 -08:00
Kevin Kim	df0d75034b	bitmanip decoder spits out regwrite, w64, and aluop signals [NEEDS DEBUG]	2023-02-28 12:09:35 -08:00
Kevin Kim	b61d881c1b	added BRegWrite, BW64, BALUOp signals to bctrl and controller ... -TODO: Main decode in bmuctrl must assert these 3 signals	2023-02-28 11:54:10 -08:00
Kevin Kim	0f876c3111	B DONE (for now) ... - datapath passes along comparator flag to alu - controllers and zbb handle min/max instructions	2023-02-18 22:12:55 -08:00
Kevin Kim	2319661b10	controlleres and zbb handle byte instructions	2023-02-18 21:06:55 -08:00
Kevin Kim	e7339902ae	alu and controllers handle andn, orn, xnor	2023-02-18 20:57:07 -08:00
Kevin Kim	59e9c7c747	added logic to handle sign/zero extend instructions	2023-02-18 20:32:40 -08:00
Kevin Kim	543dc1e36a	fixed bmuctrl decode bug	2023-02-18 20:11:50 -08:00
Kevin Kim	446327215d	updated comments in bmuctrl	2023-02-18 19:57:10 -08:00
Kevin Kim	e4085764e7	removed redundant decode logic in bmuctrl	2023-02-18 19:50:36 -08:00
Kevin Kim	f18cd53dee	began ZBB integration into ieu	2023-02-18 19:44:14 -08:00
Kevin Kim	5f56f72bb1	bmuctrl handles roriw	2023-02-18 16:26:16 -08:00
Kevin Kim	5e7ed8804f	bmuctrl supports some rotates	2023-02-17 21:57:19 -08:00
Kevin Kim	88d7c3b1f2	bmuctrl handles .uw instructions	2023-02-17 20:14:13 -08:00
Kevin Kim	b09d942d60	removed Funct7 in Execute Stage	2023-02-17 16:12:09 -08:00
Kevin Kim	a1570a88c9	bmuctrl checks for illegal zbs-style instructions	2023-02-17 12:54:08 -08:00
Kevin Kim	370ff54875	bctrl bug fix ... - bctrl decodes shift immediate instructions properly	2023-02-17 11:16:29 -08:00
Kevin Kim	07eaf146c2	alu looks at BSelect, added BSelect one hot signal	2023-02-17 09:51:49 -08:00
Kevin Kim	44c9612a5c	added BSelect Signal ... - BSelect [3:0] is a one hot encoding of if it's a ZBA_ZBB_ZBC_ZBS instruction	2023-02-17 08:21:55 -08:00
Kevin Kim	ada6023a41	comments	2023-02-17 07:53:14 -08:00