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2137 Commits

Author SHA1 Message Date
Ross Thompson
e1ac736d43 Rename LineByteMux to FetchbufferbyteSel. 2022-12-04 01:00:04 -06:00
Ross Thompson
128b3d20e7 Updated riscv arch test removed misaligned1. 2022-12-04 00:18:10 +00:00
Ross Thompson
de99663b97 Revert "Changed weird D sizing. Better names in preproc. Finalized Int/Float input to divider." 
This reverts commit 70b89e5214.
 2022-12-04 00:01:58 +00:00
cturek
70b89e5214 Changed weird D sizing. Better names in preproc. Finalized Int/Float input to divider. 2022-12-02 21:44:29 +00:00
cturek
1f32603c30 Added flops to preproc 2022-12-02 20:31:08 +00:00
David Harris
9395414df3 Renamed FPUStallD to FCvtIntStallD 2022-12-02 11:55:23 -08:00
David Harris
d64cd715f9 Renamed DivStartE to IFDivStartE 2022-12-02 11:30:49 -08:00
David Harris
9c1b7e53e4 FPU divider working with execute stage stall 2022-12-02 11:11:53 -08:00
David Harris
01028e7088 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-12-02 04:28:50 -08:00
David Harris
4c6003d9e2 update test list 2022-12-02 04:28:47 -08:00
Ross Thompson
33e4361de5 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-12-01 22:36:07 -06:00
David Harris
8afc054e74 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-12-01 16:27:36 -08:00
David Harris
ed39099405 reorder tests 2022-12-01 16:27:33 -08:00
Ross Thompson
1d9b5badee Properly flush cacheLRU. 2022-12-01 17:32:58 -06:00
David Harris
f64c0589fe FPU test list 2022-12-01 10:18:36 -08:00
Ross Thompson
da92cdccd0 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-12-01 11:47:54 -06:00
Ross Thompson
cb310bfb1d Removed unused port on cacheway. 2022-12-01 11:47:48 -06:00
David Harris
558f0b655e Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-12-01 08:15:51 -08:00
David Harris
4e5f62a5c1 code cleanup 2022-12-01 08:15:48 -08:00
Ross Thompson
b0b16acaf5 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-30 17:19:04 -06:00
David Harris
aa26a97b36 signal sufixes in integer division 2022-11-30 15:15:37 -08:00
Ross Thompson
f9ffcf377b Reverted the IROM/DTIM address range modelsim assignment. 2022-11-30 17:13:33 -06:00
Ross Thompson
bfd238a4fc Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-30 13:30:37 -06:00
Ross Thompson
813b2963fb More optimization. 2022-11-30 11:26:48 -06:00
Ross Thompson
da7b13ba0a Removed reset on dirty cache bits. 2022-11-30 11:04:37 -06:00
Ross Thompson
5e5cca6ae1 Turns out the merge of dirty and tag bits is complicated by the need to have byte write enables rather than bit write enables. Putting on hold for now. 2022-11-30 11:01:25 -06:00
Ross Thompson
ac3e02692b Preparing to merge dirty and tag srams. 2022-11-30 10:40:48 -06:00
Ross Thompson
8692ccbafb Intermediate commit. Replaced flip flop dirty bit array with sram. 2022-11-30 00:08:31 -06:00
cturek
e28a6901a9 div tests in sim-wally 2022-11-30 02:32:04 +00:00
Ross Thompson
e3577781b0 Optimization of cacheway. 2022-11-29 18:30:47 -06:00
Ross Thompson
1e2180ef98 Updated HPTW to route access faults generated by the HPTW to the original access type either instruction access fault, load access fault or store access fault. 2022-11-29 17:19:31 -06:00
Ross Thompson
5e550fe5e6 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-29 14:57:38 -06:00
Ross Thompson
9e4166407b Fixed a bug with the replacement policy. It was updating the wrong set on load hits. 2022-11-29 14:51:09 -06:00
Ross Thompson
179d321683 Cleaned up the wavefile and added logic to linearly populate the LRU before all ways are filled. 2022-11-29 14:09:48 -06:00
Kip Macsai-Goren
66fcb2bffe Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-29 10:43:44 -08:00
Kip Macsai-Goren
26b4147f40 added failing satp invalid tests to regression 2022-11-29 10:43:38 -08:00
Ross Thompson
ed54959378 Renamed signals in the cache. 2022-11-29 10:52:40 -06:00
Ross Thompson
4e52755c9f Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-22 18:07:32 -06:00
cturek
7140642c93 Almost done with Int division 2022-11-22 22:22:59 +00:00
cturek
3fbccbf119 Updated testbench/wave for fdivsqrt new start signals 2022-11-22 22:22:26 +00:00
Ross Thompson
1736983557 Cleanup cacheLRU. 2022-11-22 14:59:01 -06:00
Ross Thompson
2ae7b555be File name change for cachereplacement policy to cacheLRU 2022-11-20 22:35:02 -06:00
Ross Thompson
84679c0062 Signal name changes for LRU. 2022-11-20 22:31:36 -06:00
Ross Thompson
736a30afac Missing a file. Last commit will fail. 2022-11-17 17:45:41 -06:00
Ross Thompson
a1f39a8186 Finally have the correct replacement policy implementation. 2022-11-17 17:36:37 -06:00
Ross Thompson
ac0f6ddb7b I found the issue with the cache changes. FlushW is not asserted for all TrapM. Ecall and Ebreak don't flush the W stage. However the ifu's bus controllable must disable the BusRW for all traps. 2022-11-16 15:38:37 -06:00
Ross Thompson
9b2236b2a0 Progress on the cache replacement policy implementation. 2022-11-16 15:35:34 -06:00
Ross Thompson
cf964e30fb Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-16 12:42:29 -06:00
Ross Thompson
5f7b0b8a9b Oups found a bug with my cache changes. I took TrapM out of the logic path for selecting the cache's address CAdr (previously RAdr) to improve the critical path. This is fine for the dcache because both the E and M stages are flushed. However for the ICache only F is flushed. PCNextF is valid and points to XTVEC so the cache must take NextAdr rather than PAdr as CAdr. 2022-11-16 12:36:58 -06:00
David Harris
bc3b783543 comment cleanup 2022-11-16 10:23:20 -08:00
David Harris
ddba68605e Renamed DivBusy to FDivBusyE in FPU 2022-11-16 10:13:27 -08:00
David Harris
e008d663f4 Moved DivStartE to fdivsqrtfsm 2022-11-16 10:00:07 -08:00
Ross Thompson
900a326a23 Created improved cache replacement policy implementation. This version is generic and works for any number of ways. Not fully tested and is currently commented out. 2022-11-16 11:15:34 -06:00
cturek
6fe35ee0e3 Attempt to fix FPGA synth errors 2022-11-15 20:34:28 +00:00
cturek
1c49d4a1c2 Fixed lint errors in postprocessing 2022-11-15 20:31:23 +00:00
Ross Thompson
ec6517fadd Fixed a bug with the hptw configuration not correctly avoiding UPDATE_PTE state. 2022-11-14 16:02:20 -06:00
Ross Thompson
f03d5d3ac8 Renamed Flush to FlushStage in the cache. 2022-11-14 14:11:05 -06:00
Ross Thompson
1bf838fa6b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-14 13:48:56 -06:00
David Harris
895ee3d773 Removed comment about nonexistent possible bug 2022-11-14 09:56:33 -08:00
David Harris
cae3e00751 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-14 09:52:24 -08:00
David Harris
79d416537a Removed comment about nonexistent possible bug 2022-11-14 09:52:21 -08:00
Ross Thompson
1a00e7bbee Changed names of cache signals. 2022-11-13 21:36:12 -06:00
Ross Thompson
5800dfde60 Updated wave file. 2022-11-13 21:34:45 -06:00
cturek
0b2c8b9d46 Added majority of combinational logic 2022-11-14 00:06:38 +00:00
cturek
74f58b5d89 Added Quotient/Remainder calcs to normal termination 2022-11-13 23:44:34 +00:00
cturek
b3bfdbad18 Added flops for n and m, added B=0 signal 2022-11-13 23:02:43 +00:00
cturek
9c70ab917c Added A<B signal to fdivsqrt, started postprocessing merge 2022-11-13 22:40:26 +00:00
Ross Thompson
a27b81ef90 Changed IMWriteDataM to IHWriteDataM. 2022-11-13 12:27:48 -06:00
Ross Thompson
3ac6514856 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 
hazard was not a straight forward merge.  I changed the way the LSU and IFU generate IFUStallF and LSUStallM.  They need to be suppressed by TrapM now.
 2022-11-13 12:25:22 -06:00
David Harris
0ce3cc393a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-13 04:23:26 -08:00
David Harris
157f816cd3 HPTW cleanup 2022-11-13 04:23:23 -08:00
David Harris
0502b8ea4d Comments about division hazards 2022-11-13 04:17:37 -08:00
Ross Thompson
90697ef888 Moved all remaining bus logic from the LSU into ahbcacheinterface. 2022-11-11 14:30:32 -06:00
cturek
ff410cd849 Added integer step counter to fsm 2022-11-11 00:23:25 +00:00
Ross Thompson
c2e3bad3f5 Fixed name change in hptw. 2022-11-10 16:13:31 -06:00
Ross Thompson
7311eca5ff Wavefile update. 2022-11-10 15:48:06 -06:00
Ross Thompson
64b818c49a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-10 15:46:25 -06:00
Ross Thompson
31d5eabd77 Renamed Word to Beat for ahbcacheinterface. 2022-11-09 17:52:50 -06:00
Ross Thompson
3653d6b3ed Renamed CACHE_EVICT to CACHE_WRITEBACK. 2022-11-09 17:43:06 -06:00
cturek
d5c5450f8d Reoredered tests for arch32m 2022-11-09 18:42:00 +00:00
cturek
e7c25f9562 Fixed asign and bsign 2022-11-09 18:41:26 +00:00
Ross Thompson
42c0a10d07 Removed TrapM from the LSU and IFU. TrapM is replaced with FlushW for both. (Don't like this for the IFU). 
FlushW prevents writting the cache, dtim, and bus state.  FlushW still gates HTRANS.
FlushW does not impact the mealy outputs of the cache and bus FSMs and hazard is updated to
not stall W if we get a trap.
 2022-11-07 15:50:55 -06:00
David Harris
9b20bf341e Moved lsuvirtmem muxes into hptw 2022-11-07 11:13:34 -08:00
Ross Thompson
922513c22f Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-07 09:10:51 -06:00
cturek
b137a95a35 propagated otfc swap to Rad2 and 4 qslc 2022-11-06 23:32:38 +00:00
Ross Thompson
8d57e488c8 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-06 17:22:25 -06:00
cturek
1e927df1a0 Added conditional OTFC swap for simplified int postprocessing 2022-11-06 23:09:09 +00:00
cturek
56b7bb3590 Finished Int Preprocessinggit add ../src/fpu/fdivsqrt/fdivsqrtpreproc.sv 2022-11-06 22:40:21 +00:00
cturek
ee048325cb Added n and rightshiftx 2022-11-06 22:31:48 +00:00
cturek
67f2cb0595 p calculation 2022-11-06 22:24:21 +00:00
cturek
7567f388c2 Changed lzc names, started int/fp size merge in preproc 2022-11-06 22:21:35 +00:00
cturek
333da5c945 Added n, p, and m signals between fdivsqrt submodules. Added w64 and mdue to divsqrt testbench. 2022-11-06 22:08:18 +00:00
cturek
b893d9249d Added new macros for int div preprocessing, added p, n, and rightshiftx logic 2022-11-06 21:53:48 +00:00
David Harris
c78643f4e4 Reorder embench tests to prevent crash 2022-11-04 15:21:51 -07:00
David Harris
e57083a0ef HPTW cleanup 2022-11-04 15:21:09 -07:00
Ross Thompson
977ad1c33c Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-11-04 13:30:08 -05:00
cturek
39bf6a456e renamed remOp to RemOp 2022-11-03 22:37:25 +00:00
cturek
890b26466f Added rem/div operation to postprocessor 2022-11-02 17:49:40 +00:00
Ross Thompson
98d4929c57 Reduced complexity of logic supressing cache operations. 2022-11-01 15:23:24 -05:00
cturek
2a45787b37 Added buffered signals for int/fp 2022-10-28 21:47:24 +00:00
cturek
2ae0a9bb5d Config Cleanup 2022-10-27 22:38:56 +00:00
Ross Thompson
03f68a4cf5 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-26 14:48:50 -05:00
Ross Thompson
36d9a00471 Fixed the uart transmit fifo overrun bug. 2022-10-26 14:48:09 -05:00
cturek
51fc4de0e1 small signal cleanup 2022-10-26 18:42:49 +00:00
cturek
544c142c4f abs for int inputs 2022-10-26 16:18:05 +00:00
cturek
e401d12889 Added signed division to fdivsqrt 2022-10-26 16:13:41 +00:00
cturek
a8a89f8dfc unbroke DIVb 2022-10-26 16:11:51 +00:00
cturek
8475de128b Config cleanup 2022-10-25 21:04:09 +00:00
Jacob Pease
ec0cede2f2 Added PLIC signals for debugging on FPGA. 2022-10-25 13:57:09 -05:00
cturek
94daa961b3 Started Integer Preprocessing 2022-10-25 17:48:43 +00:00
Ross Thompson
1510c2d92f Setup to run with both the vcu108 and vcu118 boards. Set the parameters in the Makefile. 2022-10-24 15:38:39 -05:00
Ross Thompson
cc605a1966 Bit width error. 2022-10-24 13:48:47 -05:00
Ross Thompson
270a83352f Found a way to remove the interlock fsm. Dramatically reducing the complexity of virtual memory and page table walks. 2022-10-23 13:46:50 -05:00
Ross Thompson
54bd1fb806 Small cleanup of interlockfsm. 2022-10-22 16:29:51 -05:00
Ross Thompson
ae7a71c0f4 Created one off test to replicate the floating point forwarding hazard bug. 2022-10-22 16:29:12 -05:00
Ross Thompson
f9a04c13df comment updates. 2022-10-22 16:28:44 -05:00
Ross Thompson
78586c5a7a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-22 16:27:30 -05:00
Ross Thompson
611ea6882d Changed FDivBusyE to stall the whole pipeline. Any instruction in the Executation which depended on the output of an instruction in the writeback stage would be lost if the back end of the pipelined advanced. The solution is to stall the whole pipeline. 2022-10-22 16:27:20 -05:00
Jacob Pease
1f207bcafb Extended rxfifotimeout count to actually be 4 characters long. 2022-10-20 17:35:49 -05:00
Ross Thompson
e5cae3bfa0 Moving interlockfsm changes to a temporary branch. 
reduced complexity of cache mux controls.
 2022-10-19 15:08:23 -05:00
Ross Thompson
5ad3ee6b54 Broken don't use this state. 2022-10-19 14:31:22 -05:00
Ross Thompson
de1e569ee9 Noted possible bug with endianness during hptw. 
Minor complexity reduction in interlockfsm.  I think there is a lot of room to simplify.
 2022-10-19 12:20:19 -05:00
Ross Thompson
a58179b1d6 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-19 10:42:31 -05:00
Ross Thompson
49a85c7f50 Sort of solved the bit width warning for dtim, irom ranges. 2022-10-19 10:42:19 -05:00
Ross Thompson
61f7bad739 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-18 15:06:09 -05:00
Ross Thompson
962ba5e4b8 Updated uart settings and fpga wave config. 2022-10-18 15:05:33 -05:00
Ross Thompson
a7ae593a68 Possible fix for interrupt during a floating point divide. 2022-10-18 15:04:21 -05:00
Ross Thompson
2c80c2b35f Merged cacheable with seluncachedadr. 2022-10-17 13:29:21 -05:00
David Harris
6ab6467777 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-14 17:33:36 -07:00
David Harris
1428081742 Removed unused FPU waves 2022-10-14 17:33:32 -07:00
amaiuolo
a0712d1456 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-10-13 22:36:57 +00:00
amaiuolo
000117fcd4 added amaiuolo@hmc.edu 2022-10-13 22:36:52 +00:00
Ross Thompson
47915421c2 Fixed uncached read bug introduced by yesterday's changes. 2022-10-13 11:11:36 -05:00
Ross Thompson
fccaad7f3f Fixed LSU to correctly handle the difference between LLEN and AHBW. 2022-10-12 12:06:15 -05:00
Ross Thompson
12a6a9f83b Actually fixed the bus width issue coming out of the cache. 
The root cause is the ahb bus width can be different from LLEN.
If we switch the d-cache to outputing LLEN and on LLEN intervals, subword read needs to operate on LLEN as well.
Then the cache always outputs LLEN data which may need to be muxed down into 2 or more subwords if ABHW is smaller than LLEN.
 2022-10-12 11:33:10 -05:00
Kip Macsai-Goren
f711eb0bcf quick fix to endianness wapping 64 bit reads in 32 bit confgs 2022-10-11 23:08:02 +00:00
Ross Thompson
b2f71b8255 Modified LSU to support DTIM without CSRs. 2022-10-11 14:05:20 -05:00
Ross Thompson
a5c15fd801 Fixed first problem with the rv64i IROM. 2022-10-11 11:35:40 -05:00
Ross Thompson
403daecc8e Modified the do scripts to change the DTIM_RANGE and IROM_RANGE to large values from the defaults. 
The defaults are used for synthesis.
rv64i and rv32i: DTIM 2KiB, IROM 2KiB
rv32ic: DTIM 4KiB, IROM 16KiB
Regression tests require 8MiB or larger so modelsim overrides.
 2022-10-11 10:47:13 -05:00
David Harris
36c0e1d4e9 Removed imperas tests from rv32i/rv64i because the configs lack privileged support expected in the tests. Also cleaned up comment in LSU 2022-10-10 10:22:12 -07:00
David Harris
e4c5754b3a Made simple RV64 configuration be RV64i. Eliminated rv64ic and rv64fp. Fixed some bugs related to new width 2022-10-10 09:10:55 -07:00
David Harris
a5a922d048 Removed unnecessary configuration conditions from subwordread sign extension/NaN boxing 2022-10-10 07:12:37 -07:00
Ross Thompson
1bc5f88e4a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-09 16:46:51 -05:00
Ross Thompson
b52f593ecb Reorganized the configs. 2022-10-09 16:46:48 -05:00
David Harris
6092ca757a New fdivsqrtqsel4cmp module based on comparators rather than table lookup 2022-10-09 04:47:44 -07:00
David Harris
dceb6f9034 Moved shift into divsqrt stage and cleaned up comments 2022-10-09 04:45:45 -07:00
David Harris
55e4911cf0 fdivsqrt code cleanup 2022-10-09 03:37:27 -07:00
Ross Thompson
382ccf74a5 Cleaned up the new muxes to select between IROM/ICACHE/BUS and DTIM/DCACHE/BUS. 2022-10-05 15:46:53 -05:00
Ross Thompson
62951ec653 Fixed wally32e. 2022-10-05 15:37:01 -05:00
Ross Thompson
2144343c4a Name clarifications. 2022-10-05 15:36:56 -05:00
Ross Thompson
2e578eb8d8 Fixed bug with combined dtim+bus. 2022-10-05 15:16:01 -05:00
Ross Thompson
b52ab91028 Possibly have working dtim + bus config. 2022-10-05 15:08:20 -05:00
Ross Thompson
8d01cf32fc Updated wavefile. 2022-10-05 14:55:40 -05:00
Ross Thompson
a0c5833d6d Fixed bug in EBU. 2022-10-05 14:51:12 -05:00
Ross Thompson
68aa1434b4 Modified the LSU and IFU to allow concurrent DTIM/DCACHE+BUS and IROM/ICACHE+BUS. 
Don't use this commit as the rv32i tests are not passing.
 2022-10-05 14:51:02 -05:00
Ross Thompson
20546857e6 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-05 14:03:44 -05:00
David Harris
f318daa605 Changed RV32i config to use DTIM and bus. Don't use this commit - it will break rv32i tests. 2022-10-05 11:46:52 -07:00
Ross Thompson
e6b36d0c02 Optimized the ebu's beat counting. 2022-10-05 10:58:23 -05:00
Ross Thompson
3f59ea6b6d Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-04 17:38:49 -05:00
Ross Thompson
92d7be645b Reordered the eviction and fetch in cache so it follows a more logical order. 2022-10-04 17:36:07 -05:00
Ross Thompson
52e8e0f5ef Modified cache lru to not have the delayed write. 2022-10-04 15:14:58 -05:00
Kip Macsai-Goren
d5cd67cf09 fixed endianness mstatush problem, passes make, not regression 2022-10-04 17:37:39 +00:00
Kip Macsai-Goren
2bbcec680f addded renamed file 2022-10-04 17:37:05 +00:00
Kip Macsai-Goren
c4441eb0fa Merge branch 'main' of github.com:davidharrishmc/riscv-wally 2022-10-04 17:33:54 +00:00
Kip Macsai-Goren
175e824a61 Renamed endianswap to match module name 2022-10-04 17:33:49 +00:00
Ross Thompson
56cc04316c Fixed a very subtle bug in the trap handler. It was possible to select the wrong cause if an interrupt was pending, but it was supressed by Committed and another exception triggered. 2022-10-02 16:21:21 -05:00
Ross Thompson
02ed8fc301 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-10-01 15:01:22 -05:00
Ross Thompson
bc94f4aef1 Disable IFU bus access on TrapM. 2022-10-01 14:54:16 -05:00
Ross Thompson
e6db1c5cf8 Added logic to not implement the save/restore muxes for LSU in the EBU's controller input stage. 2022-09-29 18:37:34 -05:00
David Harris
fc4146f409 Adding start signals for integer divider to fdivsqrt 2022-09-29 16:30:25 -07:00
Ross Thompson
47e936cab3 Renamed signals in EBU. 2022-09-29 18:29:38 -05:00
cturek
c72e2e5d49 Added integer inputs and flags to divsqrt 2022-09-29 23:08:27 +00:00
Ross Thompson
f9c4b32bd5 Simplification to EBU. 2022-09-29 18:06:34 -05:00
Ross Thompson
146ff6ff6a Fixed HTRANS not changing after accepting HREADY. This exposed a bug in uncore. 2022-09-29 11:54:03 -05:00
Ross Thompson
638e506d0b Hmm. the icache and ifu didn't have a CommittedF signals going back to the privileged unit. They probably should. If an interrupt occurred during the middle of an instruction fetch icache miss I think it would corrupt the icache. 2022-09-28 17:39:51 -05:00
Ross Thompson
87485ed237 Possible fix for ifu/lsu arbiration issue. 2022-09-27 17:24:35 -05:00
Ross Thompson
afc6934249 Possible fix to the bus cache interaction. 2022-09-27 11:34:33 -05:00
Ross Thompson
dfe6bdd06d Found a hidden bug in the cache to bus fsm interlock. 2022-09-26 17:41:30 -05:00
Ross Thompson
f24b0feeed renamed ahbmulticontroller to ebu. 2022-09-26 14:37:18 -05:00
Ross Thompson
fd47cf05c3 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-26 12:49:16 -05:00
Ross Thompson
fd2a8e621a Yesterday David and I found what is likely a bug in our AHB implementation. HTRANS was getting reset to 2 rather than 0 at the end of a burst transaction. This is fixed. 2022-09-26 12:48:26 -05:00
David Harris
b5d2bbe7ca changed always_ff to always in sram1p1rw to fix testbench complaint 2022-09-25 19:56:40 -07:00
Ross Thompson
dcc00ef4b3 Renamed RW signals through the caches, bus interfaces, and IFU/LSU. 
CPU to $ is called LSURWM or IFURWF.
CPU to Bus is called BusRW
$ to Bus is called CacheBusRW.
 2022-09-23 11:46:53 -05:00
Ross Thompson
6a6686a34b Removed the write first sram model. 2022-09-22 16:12:08 -05:00
Ross Thompson
8a6ca027c2 The valid and dirty bits match the SRAM implementation now. 2022-09-22 16:09:09 -05:00
Ross Thompson
29087812e1 Solved the sram write first / read first issue. Works correctly with read first now. 2022-09-22 14:16:26 -05:00
Ross Thompson
f74d21e063 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-21 18:24:06 -05:00
Ross Thompson
cd5b8be78f Cleaned up the IFU and LSU around dtim and irom address calculation. 2022-09-21 18:23:56 -05:00
David Harris
cfa83fdd98 For radix 4 division, fixed initial C and then could remove unexplained shift from divshiftcalc 2022-09-21 13:30:35 -07:00
David Harris
fce927810a Fixed testbench-fp to support all again 2022-09-21 13:19:48 -07:00
David Harris
f08d5b23d5 Eliminated store after store stall when no cache; simplified divshiftcalc logic. 2022-09-21 13:02:34 -07:00
Ross Thompson
f83d640068 Updated IROMAdr logic. 2022-09-21 12:42:43 -05:00
Ross Thompson
0294ca0469 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-21 12:36:52 -05:00
Ross Thompson
cdc80c1f28 Moved other SRAMs to generic/mem. 2022-09-21 12:36:03 -05:00
David Harris
3b0714b059 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-21 10:35:11 -07:00
David Harris
1c8581dd6d 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
Ross Thompson
427db1f55f Renamed brom1p1r to rom1p1r. 
removed used file bram2p1r1w.sv.
 2022-09-21 12:31:20 -05:00
Ross Thompson
234cf7510e Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-21 12:20:12 -05:00
Ross Thompson
91fcca9d17 Merged together bram1p1rw with sram1p1rw as sram1p1rw. 
Fixed a major issue with the real SRAM implemenation.
 2022-09-21 12:20:00 -05:00
Ross Thompson
d6fa8d51d7 Modified sram1p1rw to support 3 different implementation styles. 
SRAM, Read first, and Write first.
 2022-09-21 11:26:00 -05:00
David Harris
f87e15388a commented SpecialCase 2022-09-21 05:02:08 -07:00
David Harris
b21e36a788 Added SpecialCaseReg to hold SpecialCase for fdivsqrtpostproc 2022-09-21 04:55:43 -07:00
David Harris
437fd52bf6 Gated sticky bit in fdiv with SpecialCase 2022-09-20 20:05:00 -07:00
David Harris
cf5c513221 Restored radix 2 to pass regression 2022-09-20 19:30:16 -07:00
David Harris
9c8edb9cb6 renamed u to udigit to avoid conflict with U 2022-09-20 19:29:23 -07:00
cturek
e8f2715a81 Fixed R4 Sqrt overshifting 2022-09-21 00:05:36 +00:00
cturek
49a1259cf9 Fixed fgen4 2022-09-20 20:00:01 +00:00
Ross Thompson
c73fae8a96 Merge branch 'tempMain' into main 2022-09-20 13:57:38 -05:00
Ross Thompson
1c2e47e137 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-20 11:56:53 -05:00
Ross Thompson
b2f4d4aaa7 Added chip enables to sram. 2022-09-20 10:49:14 -05:00
David Harris
33af1f97f7 Define LOGNORMSHIFTSZ 2022-09-20 08:31:57 -07:00
Ross Thompson
7470bf7c7c Added comment. 2022-09-20 09:49:53 -05:00
Ross Thompson
ea6b687f7c Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-20 09:47:16 -05:00
David Harris
811f498f63 renamed q to u for unified digit selection 2022-09-20 04:35:14 -07:00
David Harris
705a2bd97b Removed D2 and D2b from radix2 stage 2022-09-20 04:20:38 -07:00
David Harris
c77ec2aa9c Simplified UM initialization 2022-09-20 04:18:12 -07:00
David Harris
956011b40b fdivsqrtfgen4 comments 2022-09-20 04:13:21 -07:00
David Harris
8d1408a9d6 Moved fpu modules into subdirectories 2022-09-20 04:12:05 -07:00
David Harris
0af8151c2a Partitioned fdivsqrt into one module per file and added file names to opening comments 2022-09-20 03:57:57 -07:00
David Harris
5b13140078 Simplified fdivsqrtpostproc QmM logic 2022-09-20 03:30:18 -07:00
David Harris
8647de5ee4 make QmM size b+1 indpenedent of radix 2022-09-20 03:25:09 -07:00
David Harris
31c3b62774 clean up divshiftcalc 2022-09-20 03:19:50 -07:00
David Harris
7177745111 clean up divshiftcalc 2022-09-20 03:17:29 -07:00
David Harris
b48bbc4294 clean up divshiftcalc 2022-09-20 03:13:11 -07:00
David Harris
010c88816b clean up divshiftcalc 2022-09-20 03:08:25 -07:00
David Harris
712f1d8d3a Cleaning up divshiftcalc LOGNORMSHIFTSZ 2022-09-20 02:35:01 -07:00
Jacob Pease
c797aee62c Fixed rxfifotimeout restarting for every new character, even when already high. 2022-09-19 18:00:30 -05:00
cturek
85b3e9bfe6 Radix 4 sqrt passing first two tests 2022-09-19 21:26:32 +00:00
Ross Thompson
6a1b909a3f Fixed up IFU ahb interface names and widths. 2022-09-19 10:54:22 -05:00
David Harris
1e6bd26bb6 Removed EarlyTermShift from fdiv 2022-09-19 08:44:23 -07:00
David Harris
a36747fda0 Finished unified divsqrt otfc and fgen name changes 2022-09-19 08:30:59 -07:00
David Harris
34bd82e4a3 fdivsqrtiter simplification 2022-09-19 01:08:01 -07:00
David Harris
b19c37eb0f Reduced number of cycles needed for division 2022-09-19 01:02:04 -07:00
David Harris
7826cf0bcb Cleaned up otfc4 2022-09-19 00:58:20 -07:00
David Harris
6bab8f0e3f OTFC simplification 2022-09-19 00:51:56 -07:00
David Harris
362056f53d Removed unused otfc for Q 2022-09-19 00:43:27 -07:00
David Harris
32028c437c fdiv cleanup 2022-09-19 00:32:34 -07:00
David Harris
b7b082482f Division working again for radix 2 with unified OTFC 2022-09-19 00:30:30 -07:00
David Harris
91194a9c3e Unified on-the-fly conversion working for radix 2; broke radix-4 division 2022-09-19 00:04:00 -07:00
David Harris
9fb3382ec3 Added 2 bits to C to initialize properly 2022-09-18 22:44:22 -07:00
David Harris
33933dd6b0 Added 2 bits to C to initialize properly 2022-09-18 22:42:35 -07:00
David Harris
24aa410984 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-18 21:27:36 -07:00
David Harris
198a134304 FP testbench 2022-09-18 21:27:21 -07:00
David Harris
1187187a5c Divide testfloat starts with half-precision tests 2022-09-18 06:46:47 -07:00
Ross Thompson
0fb45cffa1 Removed NonIROM and NonDTIM select signals from IFU and LSU. 2022-09-17 22:01:03 -05:00
Ross Thompson
cc1ba84637 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
f65d941561 Reduced number of cycles required for lower-precision sqrt 2022-09-17 09:55:34 -07:00
David Harris
54ad15d595 Starting to adust number of cycles for division/sqrt 2022-09-17 05:58:59 -07:00
cturek
f07d4b3481 Fixed j1 to align with new C reg 2022-09-16 02:15:48 +00:00
Kip Macsai-Goren
a4fc5d3476 Created initial endianness tests 2022-09-16 01:06:26 +00:00
David Harris
a7b5a0419a Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-15 12:49:21 -07:00
David Harris
aa1f3ca2be renamed endianswap 2022-09-15 12:49:18 -07:00
Ross Thompson
4c8ae8b421 Fixed subword read to work with bigendian. 2022-09-15 14:08:04 -05:00
David Harris
877cc63063 FDIVSQRT cleanup 2022-09-15 09:10:57 -07:00
Ross Thompson
db56a326c9 renamed multimanager to multicontroller. 2022-09-14 14:03:37 -05:00
Ross Thompson
a536829824 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-14 13:59:22 -05:00
cturek
5b35473339 Added shift for radix 4 sqrt 2022-09-14 17:34:24 +00:00
cturek
9757d8ce3e Moved X-1 to preproc 2022-09-14 17:26:56 +00:00
cturek
0f5b38a6f0 Delete srt 2022-09-14 17:02:42 +00:00
cturek
8378d6b871 removed unnecessary XZero from wsmux 2022-09-14 16:59:52 +00:00
David Harris
4038c4faa9 ZMerge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-14 09:42:17 -07:00
Ross Thompson
2ae62c2869 pipelining of fetch into evict AHB requests. 2022-09-13 17:51:55 -05:00
Ross Thompson
40e7d2648f Renamed signals in the LSU. 2022-09-13 11:47:39 -05:00
David Harris
2babf1fd7a Removed unused signals 2022-09-12 11:35:35 -07:00
David Harris
f45bb25618 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-08 16:05:58 -07:00
David Harris
1688d544b9 Moved C to shift before rather than after using in an iteration 2022-09-08 16:05:53 -07:00
David Harris
1c3064af08 divsqrt comment cleanup 2022-09-08 15:40:42 -07:00
Ross Thompson
33ef158ff4 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-08 17:15:46 -05:00
David Harris
e0a9b19008 CSA-based completion detection 2022-09-08 14:58:08 -07:00
Ross Thompson
8618045bf2 Optimization. Able to remove hptw address muxes from the E stage. 2022-09-08 15:51:18 -05:00
Ross Thompson
d12ceb46b0 Oups the ahbinterface.sv was accidentally named abhinterface.sv. 2022-09-08 13:21:37 -05:00
Ross Thompson
fbea27bd69 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-07 16:36:51 -05:00
Ross Thompson
ae4a55471d Oups fixed order of ending swap with mux between cache and fetch buffer. 2022-09-07 16:29:47 -05:00
David Harris
f628622ea0 Factored out aplusbeq0 unit 2022-09-07 11:36:35 -07:00
David Harris
c2f81e309b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-07 11:11:39 -07:00
David Harris
b0cf73d19c Running 16-bit square root cases first in testfloat 2022-09-07 11:11:35 -07:00
Ross Thompson
fd4b382ec6 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-09-07 12:26:50 -05:00
David Harris
e01b03e9b2 Run 16-bit fsqrt tests first 2022-09-07 10:26:09 -07:00
Ross Thompson
54c55b57cb Named change for ahb tests to be less annoying. 2022-09-07 12:24:41 -05:00
David Harris
d91b4de348 Preprocessing cleanup 2022-09-07 10:21:27 -07:00
Ross Thompson
6581490f9c Modified regression tests to add some ahb configurations. 2022-09-07 12:03:58 -05:00
David Harris
29f015810b Added rv32i config for regression of wally32periph 2022-09-07 09:37:59 -07:00
Ross Thompson
d07c44bcf6 Merge branch 'multimanager' into main 2022-09-07 10:54:27 -05:00
David Harris
29f41c6792 Continued simplifying fdivsqrt postprocessing 2022-09-07 07:02:22 -07:00
David Harris
461b9d370d Continued simplifying fdivsqrt postprocessing 2022-09-07 07:00:13 -07:00
David Harris
825d3169d9 Moving postprocessing into postproc block 2022-09-07 06:42:37 -07:00
David Harris
f40c6b0ec4 fdivsqrtfsm cleanup 2022-09-07 06:32:07 -07:00
David Harris
a0abe48ad2 fdivsqrtfsm cleanup 2022-09-07 06:27:01 -07:00
David Harris
8438546d52 Fixed regression for divsqrt radix2 2022-09-07 06:12:23 -07:00
Ross Thompson
6685b0563e James found a bug in synchronizer. Was not actually back to back flip flops. 2022-09-06 15:06:54 -05:00
Ross Thompson
99e3f55637 Added logic to make burst optional. 2022-09-06 09:21:21 -05:00
Ross Thompson
fcf72bb6ba Added generate around the longer latency version of the ram_ahb.sv 2022-09-06 09:21:03 -05:00
Ross Thompson
20842b38b9 Names changes. 2022-09-05 20:49:35 -05:00
Ross Thompson
4e7a52a7a7 Cleaned up hacks to ram. 2022-09-04 14:52:40 -05:00
Ross Thompson
9d5a7281b8 Modified ram_ahb to work with different latencies. 2022-09-04 14:46:15 -05:00
Ross Thompson
7ae58c6654 Progress towards fixing the select HREADY muxing in uncore. 2022-09-04 13:07:49 -05:00
Ross Thompson
26bfaddb25 Disabled AHB burst mode, which discovered a bug. 
Multimanger bug in how back to back requests were arbitrated.
 2022-09-03 22:31:41 -05:00
cturek
e709ad4145 Old changes to old files 2022-09-03 22:09:55 +00:00
Ross Thompson
3e540a3ca3 Possible fix to AHB burst eviction bug. If HREADY went low during a burst seq the next data phase would only last 1 cycle. 2022-09-02 19:58:41 -05:00
Ross Thompson
4115087b30 Renamed state in buscachefsm to match AHB phases. 2022-09-02 17:17:40 -05:00
Ross Thompson
472fb5e888 Renamed states in busfsm to match AHB phases and book names. 2022-09-02 17:12:36 -05:00
Ross Thompson
15a2fbdd33 Possible fix for AHB trailing ~HREADY bug. 2022-09-02 16:58:35 -05:00
Ross Thompson
851ad4417d Merge branch 'multimanager' of github.com:davidharrishmc/riscv-wally into multimanager 2022-09-02 16:31:07 -05:00
Ross Thompson
2aa5886769 Fixed brom1p1r.sv to have fpga preload. 2022-09-02 15:49:50 -05:00
Ross Thompson
722e1a029e Merge branch 'multimanager' of github.com:davidharrishmc/riscv-wally into multimanager 2022-09-02 13:54:48 -05:00
Ross Thompson
559e093ab5 Fixed up FPGA constraints. 
Added back in the fpga boot rom preload.
 2022-09-02 13:54:35 -05:00
David Harris
648a3aae09 Initial radix 4 square root debuggin 2022-09-01 16:57:57 -07:00
Ross Thompson
83c427c5b5 clean up subword write. 2022-09-01 17:55:19 -05:00
David Harris
247ce70348 Fixed lint errors in square root and improved waveforms in testfloat 2022-09-01 15:49:13 -07:00
Ross Thompson
5b4e744972 marked possible improvement to ahb bus fsms. 2022-08-31 23:57:08 -05:00
David Harris
8fad5073cd fdiv debug 2022-08-31 14:26:31 -07:00
Ross Thompson
5c8631fd16 Reduced busfsm to 3 states! 2022-08-31 16:11:59 -05:00
Ross Thompson
1cd7d8dbfe Simplified. 2022-08-31 15:40:56 -05:00
Ross Thompson
2b528dc8be more renaming. 2022-08-31 14:52:06 -05:00
Ross Thompson
ab4c75cbf5 More renaming. 2022-08-31 14:49:08 -05:00
Ross Thompson
6e85f850a4 Moved files. 
Encapsulated ahbinterface.
 2022-08-31 14:45:01 -05:00
Ross Thompson
fcd1465de1 Renamed AHBCachebusdp to abhcacheinterface. 2022-08-31 14:12:19 -05:00
Ross Thompson
d6d1c5d66d Moved files around. 2022-08-31 14:08:06 -05:00
Ross Thompson
6912656aab Merge branch 'multimanager' into main 2022-08-31 13:10:22 -05:00
Ross Thompson
39c2cad9af Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-31 13:10:04 -05:00
David Harris
e64f41f199 Checking in radix 4 square root with qsel, fgen, softc, but not working 2022-08-31 10:54:50 -07:00
Ross Thompson
08d0c1cc83 Major cleanup of multimanager. 2022-08-31 12:40:25 -05:00
Ross Thompson
352f7443c2 Cleanup multimanager. 2022-08-31 12:04:44 -05:00
Ross Thompson
d06c64094b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-31 11:38:29 -05:00
Ross Thompson
1e752c1268 cleanup of multimanager. 2022-08-31 11:38:06 -05:00
Ross Thompson
1663f571ed More Cleanup. 2022-08-31 11:21:02 -05:00
Ross Thompson
68e54977fe More cleanup. 2022-08-31 11:12:38 -05:00
Ross Thompson
0b41ed63f1 More simplifications. 2022-08-31 10:45:16 -05:00
Ross Thompson
ddd9c507fe Trade off. Added additional state to bus fsm separating STATE_CACHE_ACCESS into STATE_CACHE_FETCH and STATE_CACHE_EVICT. This allows removing CacheRWDelay. Saves a bit of logic but fsm is more complex. Also the fsm outputs are simplier. 2022-08-31 10:36:30 -05:00
Ross Thompson
6122c03e39 Removed unused old versions of the bus controllers. 2022-08-31 09:51:54 -05:00
Ross Thompson
1c248e5164 Removed old signals. 2022-08-31 09:50:39 -05:00
DTowersM
dedfadbb14 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-31 00:18:04 +00:00
DTowersM
f9cbc9cf8e fixed qrduino keyerror in embench test 2022-08-31 00:17:58 +00:00
Ross Thompson
5b8f888e21 Maybe fixed it? 2022-08-30 18:08:34 -05:00
Ross Thompson
ccb3e9e24e Updates to wave file. 2022-08-30 17:34:36 -05:00
Ross Thompson
96793d15c0 more progress. 2022-08-30 17:32:32 -05:00
Ross Thompson
2d6a6c6e44 Temporary commit. 2022-08-30 15:40:42 -05:00
Ross Thompson
63a824cca1 More progress. 2022-08-30 15:27:19 -05:00
Ross Thompson
a532eb61ba Progress. 2022-08-30 14:17:00 -05:00
David Harris
5956fbdd62 Fixed checking termination in testfloat testbench 2022-08-30 10:55:21 -07:00
Ross Thompson
c8a5d61cbb new cache bus fsm not working but lints. 
Forgot a few files in the last commit.
 2022-08-30 10:58:07 -05:00
Ross Thompson
5eb1fff27d Have a rough working multi manager! 2022-08-29 17:11:27 -05:00
Ross Thompson
4f40bd07c3 Modified rv32e configuration to use a true ahb bus interface in the lsu and ifu. 2022-08-29 17:04:53 -05:00
David Harris
cb54e95285 commented out lines to have divider work again 2022-08-29 13:01:32 -07:00
David Harris
758b177067 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-29 12:01:13 -07:00
David Harris
7b0e43bc10 Initial FDIVSQRT simplification working 2022-08-29 12:01:09 -07:00
Ross Thompson
4d7b905806 Part way through the updated bus fsm for direct AHB in lsu/ifu + multi-manager. 2022-08-29 13:01:24 -05:00
Ross Thompson
40cf4a9ea9 Typo. 2022-08-29 11:40:35 -05:00
Ross Thompson
1c9aed2e7e Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-29 11:38:37 -05:00
Ross Thompson
9a7c7e8398 Added comments about planned changes. 2022-08-29 09:48:00 -05:00
David Harris
16cde5f87e Simplify FSM 2022-08-29 04:32:27 -07:00
David Harris
6961e499dc Renamed special case 2022-08-29 04:29:58 -07:00
David Harris
81ec1ac858 Separated out radix 2 and radix 4 stages into different modules 2022-08-29 04:26:14 -07:00
David Harris
b4cb9a678a renamed srt to fdivsqrt 2022-08-29 04:04:05 -07:00
Ross Thompson
35d0b759d1 Removed ignore request from busfsm. 2022-08-28 21:12:27 -05:00
Ross Thompson
dd00474956 Created two new pma regions for dtim and irom. 2022-08-28 13:50:50 -05:00
Ross Thompson
e3e1f29428 Reordered the adrdecs. 2022-08-28 13:38:57 -05:00
Ross Thompson
99e0e5c817 Possible fix. 2022-08-28 13:10:47 -05:00
Ross Thompson
5e77b1bd2b Partial fix to bus + dtim. 2022-08-27 23:44:17 -05:00
David Harris
35d0a951d2 Preliminary work to make DTIM and Bus compatible. Not yet working because accesses to bus are causing illegal address faults on the bus. 2022-08-27 20:31:09 -07:00
David Harris
3959902c5b Adding decoding for dtim. Added rv32ic_wally32periph test, which should hang until decoder overrides bus 2022-08-27 05:31:56 -07:00
David Harris
e526fea68a fixed wally-config 2022-08-26 22:13:10 -07:00
David Harris
bd6f2444cd Fixed address decoder hanging buildroot 2022-08-26 22:01:25 -07:00
David Harris
bf2c20cd17 Fixed DTIM/IROM_BASE number of bits in buildroot/fpga configs 2022-08-26 21:29:26 -07:00
David Harris
76006825b3 Set bit width of DMEM/IROM_SUPPORTED and fixed address decoding 2022-08-26 21:18:18 -07:00
David Harris
921a49921b Set correct size of IROM/DTIM and allow FLEN>XLEN with DTIM 2022-08-26 21:05:20 -07:00
David Harris
460a95f99b Added IROM and DTIM decoding to adrdecs 2022-08-26 20:45:43 -07:00
David Harris
6409548c8b Replaced DTIM and IROM with DTIM_SUPPORTED, IROM_SUPPORTED, and base and range for each 2022-08-26 20:26:12 -07:00
David Harris
906f6f2990 Renamed DMEM to DTIM and added checks about compatibility of DTIM/IROM and virtmem 2022-08-26 20:12:03 -07:00
David Harris
841eae58ca Fixed endian swapping on bus only 2022-08-26 19:58:04 -07:00
David Harris
af2e71046e Fixed rv32e LSU and IFU issues 2022-08-25 20:02:38 -07:00
David Harris
8cbdbb1c38 lsu simplification 2022-08-25 18:52:42 -07:00
David Harris
d507bb3d70 busfsm simplified 2022-08-25 18:36:53 -07:00
David Harris
dc52f55aa6 Removed unused signals 2022-08-25 18:34:39 -07:00
David Harris
50826c0b61 Removed unused signals 2022-08-25 18:30:46 -07:00
David Harris
7cbca2dd22 Removed UncachedBusRead and UncachedBusWrite 2022-08-25 18:24:39 -07:00
David Harris
845807a329 Restored ahbtranstype 2022-08-25 18:22:26 -07:00
David Harris
4ab678ed48 Removed ahbtranstype 2022-08-25 18:21:45 -07:00
David Harris
f405a191af Removed WordCountFlag 2022-08-25 18:21:18 -07:00
David Harris
db7698202d Removed UncachedAccess 2022-08-25 18:20:52 -07:00
David Harris
7801ed48b3 Removed UncachedRW 2022-08-25 18:19:41 -07:00
David Harris
bb4ae908db Removed CacheBusAck 2022-08-25 18:17:34 -07:00
David Harris
85b5587678 Removed SelUncachedAdr 2022-08-25 18:15:59 -07:00
David Harris
555083b0c3 Removed Cache_Enabled 2022-08-25 18:13:34 -07:00
David Harris
b982db5bd5 Removed STATE_BUS_FETCH and STATE_BUS_WRITE 2022-08-25 18:12:09 -07:00
David Harris
de9ec7cc2e Removed CacheFetchLine and CacheWriteLine 2022-08-25 18:10:15 -07:00
David Harris
fb5ddc476c Removed CountEn 2022-08-25 18:05:44 -07:00
David Harris
7eae6765df Removed wordcount 2022-08-25 18:04:49 -07:00
David Harris
73419f0d41 Added buscachefsm for system with bus and cache 2022-08-25 18:01:01 -07:00
David Harris
0b918d6916 Separated busdp for cache from simpler logic for no cache 2022-08-25 17:54:04 -07:00
David Harris
5c1934208a Simplified swbytemask 2022-08-25 17:32:16 -07:00
David Harris
352bf88ac0 FIxed wallypipelinedsoc merge conflict 2022-08-25 15:36:47 -07:00
David Harris
b96942e84c Removed delayed AHB signals from top level 2022-08-25 15:34:14 -07:00
Ross Thompson
109bcd470e Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-25 16:01:02 -05:00
Ross Thompson
e70c90d351 Finally resolved the issues with the rv32ic and rv64ic configurations. 2022-08-25 16:00:55 -05:00
Ross Thompson
ad3e632119 Almost fixed issues with irom and dtim address selection. 2022-08-25 15:52:25 -05:00
David Harris
6222e15946 Extended HADDR to PA_BITS 2022-08-25 13:11:36 -07:00
Ross Thompson
32f86b1b6b Still not working with rv32ic. 2022-08-25 15:03:54 -05:00
David Harris
f782fe9367 Fixed brom name 2022-08-25 12:48:00 -07:00
Ross Thompson
bbf668e460 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-25 14:45:02 -05:00
David Harris
5b3c68fe74 ahblite cleanup 2022-08-25 12:44:25 -07:00
Ross Thompson
4ad7ccc7f7 Possible fixes for earily messup of rv32ic and rv64ic configs. 2022-08-25 14:42:08 -05:00
Ross Thompson
502eb0f5d1 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-25 14:40:52 -05:00
David Harris
d7be94fab2 Cleaned up SelBusWord 2022-08-25 11:18:13 -07:00
David Harris
7a129af9ad Removed M sufix from busdp signals 2022-08-25 11:13:01 -07:00
David Harris
84ba62a04c Renamed LSUFunct3M to Funct3 in busdp 2022-08-25 11:08:12 -07:00
David Harris
78618f5fc0 Renaming LSU signals from busdp 2022-08-25 11:05:10 -07:00
David Harris
cd02c894df renamed BusBuffer to FetchBuffer 2022-08-25 10:44:39 -07:00
David Harris
5dc4fb757a Continued busdp/ebu simplification 2022-08-25 10:20:02 -07:00
David Harris
24ce72f0a2 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-25 09:52:49 -07:00
David Harris
89860588b8 Renamed AHB signals coming out of LSU to LSH_<AHBNAME> 2022-08-25 09:52:08 -07:00
Ross Thompson
bd9401179d BROKEN. Don't use this commit. 
Issue running cacheless with bus.
 2022-08-25 11:02:46 -05:00
Ross Thompson
5cc4f1f1cd Added generate around uncore. 2022-08-25 10:35:24 -05:00
Ross Thompson
1e1646da90 Added generate around ebu. 2022-08-25 09:24:13 -05:00
Ross Thompson
72b886ec8f Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-25 09:03:34 -05:00
Ross Thompson
bc0edc7bdf Updated ila signals. 
Improve fpga wave config.
added back in the fpga preload.
 2022-08-25 09:03:29 -05:00
David Harris
4ecdbb308a Renamed DCache to Cache in busdp/busfsm signal interface 2022-08-25 06:21:22 -07:00
David Harris
b9dc8d9e33 Cleanup typos 2022-08-25 04:32:19 -07:00
David Harris
cb2c0fe027 Minor name cleanups 2022-08-25 04:28:25 -07:00
David Harris
a3828420c0 Replaced dtim with rom-based IROM in IFU. Moved cache control signals out of DTIM and IROM 2022-08-25 04:06:27 -07:00
David Harris
fe3147806d removed simpleram and modified dtim to use bram1p1rw 2022-08-25 03:39:57 -07:00
David Harris
b3a13a01f8 Stripped write capaibilty out of rom_ahb 2022-08-24 17:23:08 -07:00
David Harris
e6077f1f16 Added ROM module and moved memories into generic/mem 2022-08-24 17:03:22 -07:00
David Harris
1ef0c7c2be Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-24 16:30:28 -07:00
David Harris
9d5468887e Ram cleanup 2022-08-24 16:30:25 -07:00
Ross Thompson
22e989ac7b No longer need wally-pipelined-fpga.do. 2022-08-24 18:10:45 -05:00
Ross Thompson
b650d7e05a Renamed RAM to UNCORE_RAM. 2022-08-24 18:09:07 -05:00
Ross Thompson
c636387613 Merged testbench-fpga into testbench. 
Modified SDC to simplify LimitTimers.  LimitTimers needs to be 0 for implmementation and 1 for simulation.
 2022-08-24 17:52:25 -05:00
Ross Thompson
07b2858890 added SD card and external ram to common testbench. 2022-08-24 13:27:18 -05:00
Ross Thompson
012559169b Fixed lint errors with bram wrapper. 2022-08-24 13:19:23 -05:00
Ross Thompson
c6927d2ace Modified the lsu/ifu memory configurations. 2022-08-24 12:35:15 -05:00
David Harris
e2138d8d0f bram synthesis test 2022-08-23 19:34:45 -07:00
Ross Thompson
0c52c7f69c Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-23 18:52:15 -05:00
Ross Thompson
ee3d968da0 Found small bug in busfsm which was issuing 1 extra memory read after each cache line fetch. Does not appear to have translated to an extra read out of ahblite. 2022-08-23 18:51:11 -05:00
David Harris
8d48ff4e63 Fixed FPU-IEU forwarding stall 2022-08-23 14:14:41 -07:00
David Harris
8b2e368805 Only stall FPU to IEU on convert instructions with dependencies 2022-08-23 12:57:18 -07:00
David Harris
113258a0d0 Cleaned up fcvt selection control to IEU and FPUIllegalInst signals 2022-08-23 12:17:19 -07:00
David Harris
69be6d0873 Simplify IEU-FP datapath 2022-08-23 11:16:36 -07:00
David Harris
746842107b Improved illegal instruction checking in FPU 2022-08-23 11:08:02 -07:00
David Harris
27cca2e3fd Fixed LSU typos 2022-08-23 10:23:08 -07:00
David Harris
46f30d3dbe Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-23 10:14:59 -07:00
David Harris
13831aa3d3 typo in srtfsm 2022-08-23 10:14:54 -07:00
Katherine Parry
f9aa94f87b Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-23 16:36:32 +00:00
Katherine Parry
72a54ef621 renamed rounding bits to L,G,R,S and fixed lint warning 2022-08-23 16:36:20 +00:00
Ross Thompson
1f74528792 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-23 11:15:04 -05:00
Ross Thompson
7080fe7788 Reversed order of supported sized in adrdecs. 2022-08-23 11:14:53 -05:00
Ross Thompson
b0606a1699 Replaced FPU data replicaiton on WriteData bus with 0 extention. 2022-08-23 10:46:03 -05:00
Ross Thompson
b9fadc11c3 Replaced LSU data replication with 0 extention. 2022-08-23 10:43:47 -05:00
Ross Thompson
cd0da2e3b3 Updated the names of the *WriteDataM inside the LSU to more meaningful names. 
Moved the FWriteDataMux so that the bus and dtim both get fpu stores.
Modified the PMA to disallow double sized reads when XLEN=32.
 2022-08-23 10:34:39 -05:00
David Harris
9e3d13ca52 Q depends on D 2022-08-23 08:29:59 -07:00
David Harris
7c91ed38a3 LSU minor edits 2022-08-23 07:35:47 -07:00
David Harris
b795cf4731 Updated testbench assertions. 2022-08-23 07:23:24 -07:00
David Harris
a9a5285ba8 Named HTRANS states in busfsm 2022-08-22 13:56:46 -07:00
David Harris
24a05c35d9 Renamed signals for LSU - FPU interface 2022-08-22 13:47:56 -07:00
David Harris
13d863a810 renamed GrantData to LSUGrant 2022-08-22 13:47:19 -07:00
David Harris
34eece10b8 Finished FPU-LSU interface cleanup 2022-08-22 13:43:04 -07:00
David Harris
7151befd04 Removed FStore2 and simplified HPTW 2022-08-22 13:29:54 -07:00
David Harris
bf54c1c868 Simplified FPU-LSU interface to skip IEU 2022-08-22 13:29:20 -07:00
David Harris
fffad8b314 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-22 13:28:54 -07:00
David Harris
2170203847 Simplified FPU-LSU interface to skip IEU 2022-08-22 13:28:51 -07:00
Katherine Parry
a1f0c6c598 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-22 17:16:25 +00:00
Katherine Parry
1accb92745 sqrt passes - lint warnings remain 2022-08-22 17:16:12 +00:00
David Harris
564281b8c1 Removed 2-cycle FPU-IEU latency stall 2022-08-22 16:14:15 +00:00
David Harris
1404d1c248 moved CSA to generic 2022-08-22 08:41:23 +00:00
David Harris
a8870b70b2 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-22 08:28:31 +00:00
David Harris
b91f33372e Commented out unused comparators 2022-08-22 08:28:28 +00:00
Ross Thompson
88d34d0f56 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-21 16:03:11 -05:00
Ross Thompson
21526957cf Updated fpga test bench. 
Solved read delay cache bug.  Introduced during cache optimizations.
 2022-08-21 15:59:54 -05:00
Ross Thompson
92c3cdc27d Hmm. Found a bug with the cache's changes from the summer. Cannot return data to CPU at the same time as a write to cache's SRAM and also start another memory operation. 2022-08-21 15:28:29 -05:00
Ross Thompson
a049f456e8 Removed logic from Verilog wrapper. 2022-08-21 14:07:43 -05:00
Ross Thompson
dad6770fc3 Updated fpga testbench. 2022-08-21 14:07:26 -05:00
Katherine Parry
617dc02d01 fixed -1 issue in division 2022-08-20 00:53:45 +00:00
Ross Thompson
96d6218078 Possible reduction of ignorerequest. 2022-08-19 18:07:44 -05:00
Ross Thompson
5301444a61 Changed signal names. 2022-08-17 16:12:04 -05:00
Ross Thompson
970a90dd72 Better name for LSUBusWriteCrit. Changed to SelLSUBusWord. 2022-08-17 16:09:20 -05:00
Ross Thompson
c3bd396bdb Removed old code from interlockfsm. 2022-08-17 12:52:56 -05:00
Katherine Parry
0f077012c3 sqrt tests in regression uncommented and pass 2022-08-07 23:38:10 +00:00
Katherine Parry
8eeca3319c radix-2 1 copy passes testfloat 2022-08-06 22:54:05 +00:00
Katherine Parry
8f1d8669b0 fixed fsw problem and removed 2 bit shift from shift correction 2022-08-03 22:16:51 +00:00
David Harris
8b8f045491 Completed PLIC-S tests. Regression working. This completes peripheral tests. 2022-08-03 09:33:56 -07:00
David Harris
6ee8036ae7 plic-s debug 2022-08-03 12:33:09 +00:00
David Harris
b13cdf79b3 FMA cleanup 2022-08-02 07:42:32 -07:00
David Harris
baeafc4fd2 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-02 07:34:12 -07:00
David Harris
d3e39763b6 Moved InvA to sign block; simplified fmaexpadd coding 2022-08-02 07:34:09 -07:00
Ross Thompson
acd920ae2f Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-01 22:09:11 -05:00
Ross Thompson
f7e64fcd69 Fixed fstore2 in cache? 2022-08-01 22:04:44 -05:00
David Harris
0482bf4fc0 merged lza back into main 2022-08-01 19:45:21 -07:00
David Harris
0b95ca129c Fixed fmaadd to work with new LZA 2022-08-01 19:40:55 -07:00
Ross Thompson
b8356c7449 Replaced swbytemask with swbytemaskword (1 liner). Credit to David Harris. 2022-08-01 21:12:25 -05:00
Ross Thompson
171cf7413b Replaced LOGWPL with LOGBWPL (Bus words per line) and LOGCWPL (cache words per line). Replaced with wordlen/8 bytemask. 2022-08-01 21:08:14 -05:00
Ross Thompson
5d9dab6149 pulled swbbytemask out of subword write. 2022-08-01 20:48:45 -05:00
David Harris
8b44037f58 Parameterized fmalza 2022-08-01 16:18:02 -07:00
David Harris
6e78b46761 Completed LZA simplificaiton 2022-08-01 16:13:16 -07:00
David Harris
76021769a7 lza cleanup 2022-08-01 16:01:02 -07:00
David Harris
47d204f4a2 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-08-01 15:47:58 -07:00
David Harris
c8d4f3a542 lza cleanup 2022-08-01 15:47:03 -07:00
David Harris
c531df9c4e lza cleanup 2022-08-01 15:43:48 -07:00
David Harris
5468a90cf3 lza cleanup 2022-08-01 15:40:12 -07:00
David Harris
4953ccf273 lza cleanup 2022-08-01 15:37:09 -07:00
Katherine Parry
66eca28ccd regression passes fpu tests 2022-08-01 19:56:25 +00:00
Katherine Parry
9672f5451a Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-01 19:55:50 +00:00
David Harris
31215277ee more lza cleanup 2022-08-01 12:34:00 -07:00
David Harris
48500c642c LZA cleanup 2022-08-01 12:30:42 -07:00
David Harris
87e6402af6 LZA refactoring switched to Pp1, Gm1, Km1 2022-08-01 12:20:23 -07:00
David Harris
5012b96120 LZA refactoring 2022-08-01 11:36:21 -07:00
Katherine Parry
75f39e0c5b Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-08-01 18:35:07 +00:00
David Harris
231f52c1fd fmalza edits to match textbook 2022-08-01 18:23:39 +00:00
David Harris
e3b970d3ff Partitioned fma into separate files 2022-08-01 18:07:38 +00:00
Ross Thompson
01359dbc4b Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-07-31 12:48:51 -05:00
Katherine Parry
de03954946 re-added FStore2 in Cache 2022-07-29 22:54:49 +00:00
David Harris
d2de84a456 Added parity and stop bit tests to UART 2022-07-28 04:35:51 +00:00
David Harris
da275e3c26 Increased timeout threshold to avoid timeout building riscof tests on slow machine 2022-07-27 04:05:21 +00:00
David Harris
ae4ea00ff0 fixed testbench merge comflict 2022-07-26 06:21:46 -07:00
David Harris
449c80b5f7 More work toward riscof tests 2022-07-26 06:19:13 -07:00
David Harris
094aacdf6f Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-25 23:29:08 +00:00
David Harris
ccf8ccfa24 Added rv32f tests to RV64gc 2022-07-25 23:29:05 +00:00
David Harris
539174f6f6 Tests making successfully except for rv32gc_arch32f, which has FLEN=64 and tries using fld/fsd 2022-07-25 16:23:10 -07:00
David Harris
55ab81e37b More riscof makefile tuning 2022-07-25 21:15:56 +00:00
David Harris
6b172723bd Cleaning up Makefiles for riscof to run each set of tests individually and eliminate warnings 2022-07-25 20:50:38 +00:00
Ross Thompson
f1bd2524b7 Don't use this commit yet. Untested. 2022-07-24 15:40:52 -05:00
Ross Thompson
334008630f Overlapped read fetch line end with eviction write line start. I'm a bit concerned this is not well tested. 2022-07-24 01:20:29 -05:00
Ross Thompson
856ac24686 Removed replay from the config files. 2022-07-24 00:34:11 -05:00
Ross Thompson
e12e6c3acd Added more i-cache signals to wave file. 2022-07-24 00:24:13 -05:00
Ross Thompson
458bfbf6f6 Merged evict dirty clear with flush write back. 2022-07-24 00:22:43 -05:00
Ross Thompson
70032bf8f4 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-07-23 08:41:59 -05:00
Ross Thompson
5cd6c8069d signal name cleanup. 2022-07-22 23:36:27 -05:00
Ross Thompson
7d026e02f2 cache cleanup after removing replay on cpubusy. 2022-07-22 23:30:25 -05:00
Ross Thompson
706bc819e1 cache fsm cleanup after removal of replay. 2022-07-22 23:25:09 -05:00
Ross Thompson
0f586c9ed3 Possible improvement to cache which removes the cpu_busy states. 2022-07-22 23:20:37 -05:00
Katherine Parry
bd336f18b3 merged radix-2 sqrt into divider - doesnt work yet 2022-07-23 00:41:18 +00:00
slmnemo
5b71ceac5c Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-07-22 17:13:38 -07:00
slmnemo
0bfc3fda1b Fixed UART FIFO bugs and added FIFO tests 2022-07-22 17:13:19 -07:00
Daniel Torres
b726b05d61 fixed wally rv32e tests, updated regression makefile to new testflow 2022-07-22 17:09:46 -07:00
Katherine Parry
ee7932c804 divider sizes reworked to match book 2022-07-22 22:02:04 +00:00
Daniel Torres
d95b266d49 changes to test.vh for compatability 2022-07-22 15:00:48 -07:00
Daniel Torres
2bbfd67082 added changes to stvec of reference signatures, modified some tests to copy over reference file instead of running on sail 2022-07-22 14:58:55 -07:00
slmnemo
44c30ec082 fixed error in tests.vh 2022-07-22 14:55:55 -07:00
slmnemo
170601af0b Added UART test to peripheral test 2022-07-22 14:55:34 -07:00
Daniel Torres
fbe3a1af12 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-07-22 13:52:19 -07:00
Daniel Torres
261b9aa5a1 commented out embench test that should be commented out 2022-07-22 13:52:13 -07:00
slmnemo
49329b3f42 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-07-22 12:36:06 -07:00
slmnemo
0d98ff74b4 Added PLIC test to regression 2022-07-22 12:35:37 -07:00
Daniel Torres
5d7171f6f8 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-07-22 11:16:09 -07:00
Daniel Torres
526f70e772 commiting current changes to riscof wally tests 2022-07-22 11:14:04 -07:00
cturek
338f44dfc8 Square root negative exponent handling 2022-07-22 16:45:19 +00:00
slmnemo
49565f944c Added PLIC and UART tests and new functions to the test library 2022-07-22 07:10:39 -07:00
David Harris
07c946bb04 Reset MSR on read 2022-07-22 04:29:27 +00:00
Daniel Torres
f1578936b8 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-07-21 20:59:01 -07:00
Daniel Torres
bd918d37ba added support for new version of riscof and arch tests, now supports tests that can be compiled for both rv32 and rv64 2022-07-21 20:58:58 -07:00
slmnemo
99dcff80c9 Merge branch 'main' of github.com:davidharrishmc/riscv-wally into main 2022-07-21 20:35:52 -07:00
slmnemo
bfa500234d Fixed UART bug related to parity and MSR/LSR 2022-07-21 20:35:46 -07:00
cturek
c170a8d9b6 Changed testbench to operate on two inputs and one output, changed all test generators, changed srt module to return only one output and take in Mod as a signal to compute integer remainder 2022-07-22 01:27:08 +00:00
cturek
abe1ff906e Renamed variables, moved output handling to postprocessor, added remainder handling 2022-07-21 20:45:08 +00:00
Daniel Torres
a17361870f Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main 2022-07-21 12:50:04 -07:00
Daniel Torres
6e9b4f4075 removed ugly /ref/Ref from tests.vh, added back d_fsd-align-01.S and d_fld-align-01.S tests to tests.vh, updated makefile to fix the riscof issues and fix fld fsd tests, updated testbench.sv for comptability with changes 2022-07-21 12:47:51 -07:00
Katherine Parry
e330a840b0 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-21 19:38:15 +00:00
Katherine Parry
270216dd02 radix-4 division integrated into srt - not tested 2022-07-21 19:38:06 +00:00
cturek
ddc237f6bc Division working too 2022-07-21 17:59:10 +00:00
cturek
9c694b887e Updated Radix2 Sqrt to follow new algorithm 2022-07-21 17:36:21 +00:00
Katherine Parry
67c99d3d1a added input enables and improved forwarding 2022-07-21 01:20:06 +00:00
Katherine Parry
e8c9830b88 turn off 2 word store durring non-fp instructions 2022-07-20 21:57:23 +00:00
Ross Thompson
9868e685a4 Minor cleanup of cache. 2022-07-19 23:04:23 -05:00
Ross Thompson
6c8ac7851e Reverted to fetched the demand cache line first then doing the eviction. This is important because of an optimization in the replacement policy. The replacement policy updates the LRU 1 cycle late and reads the LRU 1 cycle late for critical path timing. This means doing the eviction first requires an initial 1 cycle delay but this delay has to be applied to all misses because we don't know if an eviction is required. Since reading the demand line first is logically ok so long as it is not written to the sram until after the eviction. 2022-07-19 22:42:25 -05:00
Katherine Parry
fb890d621d moved ctrl signal registers into fctrl, also a lot of code cleaning 2022-07-20 02:27:39 +00:00
cturek
d7e90a7086 divsqrt working for floating point 2022-07-20 02:04:20 +00:00
cturek
8e66b81821 New radix-2 algorithm implemented and working 2022-07-20 02:00:43 +00:00
cturek
db39a05abc small changes 2022-07-20 01:36:25 +00:00
Katherine Parry
531829f7c8 Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-19 23:44:41 +00:00
Katherine Parry
afcddf7035 oprimized zeros and replaced complex ?: with always_comb 2022-07-19 23:44:37 +00:00
Daniel Torres
d33d0d22bd commented out embench 2.0 tests 2022-07-19 13:36:18 -07:00
Ross Thompson
ffda64587c Merged together the cache speed updates with the cache sram changes. The fstore2 changes still need to be added. 2022-07-18 23:37:18 -05:00
Katherine Parry
4c2afbbc4f moved Se into execute stage 2022-07-19 01:10:10 +00:00
Katherine Parry
a590728350 reworked fmashiftcalc to match book 2022-07-19 00:04:24 +00:00
David Harris
59eb11b73a Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-18 23:11:12 +00:00
Katherine Parry
e599f82b29 moved Ss to execute stage 2022-07-18 20:48:56 +00:00
Katherine Parry
921debf930 removed underflow from inexactct calculation 2022-07-18 17:51:18 +00:00
Katherine Parry
ea7b32a50b Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-18 17:31:29 +00:00
Katherine Parry
5bb1478859 renamed signals in ocde to match book 2022-07-18 17:31:17 +00:00
Ross Thompson
a88543275f Added degree of freedom to cache/sram. The sram width in bits is no longer defined by XLEN, but instead a separate parameter. This is decoupled from LINELEN, XLEN, and WORDLEN. 2022-07-17 21:05:31 -05:00
Ross Thompson
3670c47141 Updated cache sram's to use 1 sram for all words in a way. Still needs to modified to support subdivision by max physical sram width. 2022-07-17 16:20:04 -05:00
David Harris
7c744f0053 Rewrote convert shift calculation with always for ease of reading 2022-07-17 16:40:58 +00:00
David Harris
6e1d4ec4ed restored intPending logic to be sticky for PLIC 2022-07-16 17:43:31 -07:00
Katherine Parry
a4cd157f00 forgot some files 2022-07-15 21:42:45 +00:00
Katherine Parry
e498d87c5c Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-15 20:17:08 +00:00
Katherine Parry
e251022269 merged floating-point radix-2 divider with radix-4 2022-07-15 20:16:59 +00:00
cturek
ec9536f983 Square root radix 2 working, does not work with division 2022-07-14 22:52:09 +00:00
cturek
9f18f6a203 Square root 2022-07-14 21:19:45 +00:00
cturek
38bbd19abf Six tests passing and a bunch of sizizing issues fixed 2022-07-14 19:38:27 +00:00
Katherine Parry
a0e9e93d4f Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally 2022-07-14 18:16:13 +00:00
Katherine Parry
b069cfbec2 fixed error in divsqrt 2022-07-14 18:16:00 +00:00
cturek
f49c2a969f S and SM are updating but are not correct yet 2022-07-14 00:39:30 +00:00
Katherine Parry
e5a8ac2a44 renamed a file to fit diagram 2022-07-13 23:44:54 +00:00
cturek
7629173b15 DIVLEN and counter updated for sqrt computation and rounding 2022-07-13 22:42:39 +00:00
Katherine Parry
7e163e22a3 some code cleanup 2022-07-13 15:28:22 -07:00
Katherine Parry
77ea4e47cb removed minus 1 case in rounding 2022-07-13 15:01:38 -07:00
cturek
d57fb6f98a radix 4 files removed from srt and divlen modified for sqrt 2022-07-13 19:46:48 +00:00
cturek
9b7e63f482 Lint error fixed and added comments to preprocessing 2022-07-13 19:34:04 +00:00
cturek
81f396f885 Testbench accepts standard test vector files 2022-07-13 18:30:18 +00:00
cturek
11bb3f0a3e Test generation files in common format 2022-07-13 18:11:13 +00:00
cturek
110b762b55 Finalized sqrt, ready for debugging 2022-07-13 17:56:23 +00:00