Xavi/cvw
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6,098 Commits 14 Branches 1 Tag 31 MiB
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52 Commits

Author SHA1 Message Date
Kevin Kim
5e7bbeddd1 removed comparator flag to ALU 2023-04-02 21:14:31 -07:00
Ross Thompson
730f3ac84e Fixed all tap/space issue in RTL. 2023-03-24 17:32:25 -05:00
David Harris
d04f4cedf6 ALUControl Elimination 2023-03-24 08:10:48 -07:00
David Harris
ac0b669518 Merged ALUOp into ALUControl to simplify ALU mux 2023-03-24 07:28:42 -07:00
David Harris
c6561fffd4 BMU simplifications 2023-03-24 06:18:06 -07:00
David Harris
7e947023c1 Merged BMU 2023-03-23 17:24:40 -07:00
Kevin Kim
f9fc30e1cb fixed rori rv32 bug 2023-03-23 16:06:46 -07:00
David Harris
f8ad1b3db8 Improved IEU and bitmanip test coverage 2023-03-23 14:24:41 -07:00
David Harris
99c471ccfe Added csrwrites.S test case for privileged tests 2023-03-23 10:55:32 -07:00
Kevin Kim
b3fbdba7f3 updated header comments to indicate chapter 15 2023-03-22 10:31:21 -07:00
Kevin Kim
bc2bbc0529 min/max mux optimize 2023-03-22 10:25:54 -07:00
Kevin Kim
bc9cd4a26e more checks in bitmanip decode 2023-03-10 17:17:24 -08:00
Kevin Kim
6ee15c6e2c more comprehensive illegal b instr. check 2023-03-09 12:44:51 -08:00
Kevin Kim
5853854f52 fixed bmu bug 
- accidentally deleted count instruction decode
 2023-03-09 12:35:42 -08:00
Kevin Kim
2175702f6d cleaner bmu decode logic 2023-03-08 16:22:43 -08:00
Kevin Kim
b33b0afc77 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
c38a5d9151 formatting 
- reverted back to ALUResult signal in alu.sv
 2023-03-06 06:19:01 -08:00
Kevin Kim
474b69967a formatted files 2023-03-06 05:52:08 -08:00
Kevin Kim
288c7ad48c updated license header 2023-03-06 05:41:53 -08:00
Kevin Kim
7531bf1fd6 zbb result select mux structural 2023-03-05 14:57:30 -08:00
Kevin Kim
3d5ee8d964 bug in bctrl 
- deleted the min/minu decoding for some reason.
 2023-03-04 23:56:33 -08:00
Kevin Kim
6ead150cb1 BSelect from OH encoding to Binary 2023-03-04 23:19:31 -08:00
Kevin Kim
6295178073 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
6e52113208 Rotate signal now gets generated in bmu ctrl 2023-03-03 22:57:49 -08:00
Kevin Kim
448e950eba b controller generates comparison signed flag and controller branch signed logic updated accordingly 2023-03-03 17:12:29 -08:00
Kevin Kim
2b9a6aba91 comments to bctrl 2023-03-03 08:41:47 -08:00
Kevin Kim
11f165d1bb migrated B-subarith logic into b controller 2023-03-03 08:40:29 -08:00
Kevin Kim
2a0c59d5a7 formatting 2023-03-02 15:28:43 -08:00
Kevin Kim
11a977ffe3 added bitmanip illegal instruction signal 2023-03-02 15:09:55 -08:00
Kevin Kim
2d7d143f6d formatted bmu decoder 2023-03-02 13:45:15 -08:00
Kevin Kim
7dd4a2e975 added BRegWriteE signal 2023-03-02 12:15:22 -08:00
Kevin Kim
036cad71c6 bitmanip decoder spits out regwrite, w64, and aluop signals [NEEDS DEBUG] 2023-02-28 12:09:35 -08:00
Kevin Kim
6835a635cc 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
2069d92f9e 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
888f4318bc controlleres and zbb handle byte instructions 2023-02-18 21:06:55 -08:00
Kevin Kim
27581f8d28 alu and controllers handle andn, orn, xnor 2023-02-18 20:57:07 -08:00
Kevin Kim
ba968ed95e added logic to handle sign/zero extend instructions 2023-02-18 20:32:40 -08:00
Kevin Kim
9760f0ccfd fixed bmuctrl decode bug 2023-02-18 20:11:50 -08:00
Kevin Kim
84ddb6fb54 updated comments in bmuctrl 2023-02-18 19:57:10 -08:00
Kevin Kim
e47cc222a6 removed redundant decode logic in bmuctrl 2023-02-18 19:50:36 -08:00
Kevin Kim
9203b0cc2f began ZBB integration into ieu 2023-02-18 19:44:14 -08:00
Kevin Kim
7780cbd47a bmuctrl handles roriw 2023-02-18 16:26:16 -08:00
Kevin Kim
4a52b57002 bmuctrl supports some rotates 2023-02-17 21:57:19 -08:00
Kevin Kim
cd92d6e5d1 bmuctrl handles .uw instructions 2023-02-17 20:14:13 -08:00
Kevin Kim
fcae58fcc7 removed Funct7 in Execute Stage 2023-02-17 16:12:09 -08:00
Kevin Kim
9bf11471aa bmuctrl checks for illegal zbs-style instructions 2023-02-17 12:54:08 -08:00
Kevin Kim
0bab3bec3d bctrl bug fix 
- bctrl decodes shift immediate instructions properly
 2023-02-17 11:16:29 -08:00
Kevin Kim
ee3a520a1f alu looks at BSelect, added BSelect one hot signal 2023-02-17 09:51:49 -08:00
Kevin Kim
ec2421ead4 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
81cb00aaee comments 2023-02-17 07:53:14 -08:00