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1226 Commits

Author SHA1 Message Date
Clifford Wolf 88182e46d7 Check for memories in clk2fflogic 2017-12-13 19:14:34 +01:00
Clifford Wolf ca2adc30c9 Add warnings for driver-driver conflicts between FFs (and other cells) and constants 2017-12-12 17:13:27 +01:00
Clifford Wolf 9ae25039fb Add support for editline as replacement for readline 2017-11-08 02:55:00 +01:00
Clifford Wolf 4f31cb6dad Add "ltp" command 2017-10-31 12:40:25 +01:00
Clifford Wolf c238f45ecf Fix memory corruption bug in opt_rmdff 2017-10-26 18:02:15 +02:00
Clifford Wolf 1e502ef5a0 Fix typo in opt_clean log message 2017-10-26 18:01:48 +02:00
Clifford Wolf 716dbc9274 Revert 90be0d8 as it causes endless loops for some designs 2017-10-14 11:57:25 +02:00
Kaj Tuomi 90be0d800b Fix input vector for reduce cells. 2017-10-12 13:05:10 +03:00
Clifford Wolf 7c57d8fbb4 Rewrite ABC output to include proper net names in timing report 2017-10-10 13:32:58 +02:00
Clifford Wolf 3f22f48eeb Add blackbox command 2017-10-04 18:30:42 +02:00
Andrew Zonenberg 2b65b65d70 Added missing "break" 2017-09-15 17:54:52 -07:00
Andrew Zonenberg 7b3966714c Implemented off-chain support for extract_reduce 2017-09-15 13:59:18 -07:00
Andrew Zonenberg 3404934c9c extract_reduce now only removes the head of the chain, relying on "clean" to delete upstream cells. Added "-allow-off-chain" flag, but it's currently ignored. 2017-09-15 13:59:05 -07:00
Clifford Wolf ce78717e36 Merge pull request #412 from azonenberg/reduce-fixes 
extract_reduce: Fix segfault on "undriven" inputs
 2017-09-14 22:36:25 +02:00
Robert Ou ab1bf8d661 extract_reduce: Fix segfault on "undriven" inputs 
This is easily triggered when un-techmapping if the technology-specific
cell library isn't loaded. Outputs of technology-specific cells will be
seen as inputs, and nets using those outputs will be seen as undriven.
Just ignore these cells because they can't be part of a reduce chain
anyways.
 2017-09-14 12:54:44 -07:00
Clifford Wolf 498526cc0b Merge pull request #411 from azonenberg/counter-extraction-fixes 
Various improvements and bug fixes to extract_counter
 2017-09-14 21:44:26 +02:00
Andrew Zonenberg 66e8986ae7 Minor changes to opt_demorgan requested during code review 2017-09-14 10:35:25 -07:00
Andrew Zonenberg 367d6b2194 Fixed bug where counter extraction on non-GreenPAK devices incorrectly handled parallel counter output 2017-09-14 10:27:10 -07:00
Andrew Zonenberg c8f2f082c6 Added support for inferring counters with reset to full scale instead of zero 2017-09-14 10:26:43 -07:00
Andrew Zonenberg 122532b7e1 Added RESET_TO_MAX parameter to $__COUNT_ cell. Cannot yet be extracted. 2017-09-14 10:26:32 -07:00
Andrew Zonenberg 0484ad666d Added support for inferring counters with active-low reset 2017-09-14 10:26:21 -07:00
Andrew Zonenberg a84172b23b Initial support for extraction of counters with clock enable 2017-09-14 10:26:10 -07:00
Andrew Zonenberg c4a70a8cc3 Fixed typo in comment. Fixed bug where extract_counter would create up counters when it meant to create down counters. 2017-09-14 10:25:51 -07:00
Andrew Zonenberg 6da5d36968 Initial version of opt_demorgan is functioning for AND/OR gates. Not the prettiest results for bus inputs, but this can be improved 2017-09-12 18:47:46 -07:00
Clifford Wolf f9d023c53f Add src attribute to extra cells generated by proc_dlatch 2017-09-09 10:18:08 +02:00
Clifford Wolf 7d41c5e177 Further improve extract_fa (but still buggy) 2017-09-02 16:39:17 +02:00
Clifford Wolf 18609f3df8 Merge branch 'master' of github.com:cliffordwolf/yosys 2017-09-01 12:35:09 +02:00
Clifford Wolf 8a66bd30c6 Update more stuff to use get_src_attribute() and set_src_attribute() 2017-09-01 12:26:55 +02:00
Jason Lowdermilk 8dc6083de7 updated to use get_src_attribute() and set_src_attribute(). 2017-08-31 14:51:56 -06:00
Andrew Zonenberg ed1e3ed39b extract_counter: Added optimizations to remove unused high-order bits 2017-08-30 18:15:12 -07:00
Andrew Zonenberg 634f18be96 extract_counter: Minor changes requested to comply with upstream policy, fixed a few typos 2017-08-30 16:28:25 -07:00
Jason Lowdermilk 32c0f1193e Add support for source line tracking through synthesis phase 2017-08-29 14:46:35 -06:00
Andrew Zonenberg 3fc1b9f3fd Finished refactoring counter extraction to be nice and generic. Implemented techmapping from $__COUNT_ to GP_COUNTx cells. 2017-08-28 22:18:57 -07:00
Andrew Zonenberg 46b01f05bb Refactored extract_counter to be generic vs GreenPAK specific 2017-08-28 22:18:47 -07:00
Andrew Zonenberg b5c15636c5 Refactoring: Renamed greenpak4_counters pass to extract_counter, moved it to techmap/ since it's going to become a generic pass 2017-08-28 22:18:34 -07:00
Clifford Wolf 908f34aafc Rename recover_reduce to extract_reduce, fix args handling 2017-08-28 19:52:06 +02:00
Clifford Wolf 3aad3ed3da Merge branch 'recover-reduce' of https://github.com/azonenberg/yosys into azonenberg-recover-reduce 2017-08-28 19:46:17 +02:00
Clifford Wolf ebbb0e9479 Further improve extract_fa pass 2017-08-28 19:43:26 +02:00
Robert Ou 849b885775 recover_reduce: Update documentation 
The documentation now describes the commands performed in the deleted
recover_reduce script.
 2017-08-27 02:19:19 -07:00
Robert Ou 74d0f17fd4 recover_reduce: Reindent using tabs 2017-08-27 02:12:41 -07:00
Robert Ou 8a5887464c recover_reduce: Rename recover_reduce_core to recover_reduce 
Clifford has commented on PR #387 stating that he does not like the
driver script and would prefer to only have the core script with
appropriate notes in the documentation.

Also rename to .cc (rather than .cpp) for consistency.
 2017-08-27 02:01:32 -07:00
Robert Ou 99dad40ed0 recover_reduce: Add driver script for the $reduce_* recover feature 
Conflicts:
	passes/techmap/Makefile.inc
 2017-08-27 01:57:20 -07:00
Robert Ou 8b7dc792ee recover_reduce_core: Finish implementing the core function 2017-08-27 01:56:49 -07:00
Robert Ou fa310c98f8 recover_reduce_core: Initial commit 
Conflicts:
	passes/techmap/Makefile.inc
 2017-08-27 01:56:49 -07:00
Clifford Wolf 68c42f3a19 Don't track , ... contradictions through x/z-bits 2017-08-25 16:18:17 +02:00
Clifford Wolf db6d78a186 Add removing of redundant pairs of bits in ==, ===, !=, and !== to opt_expr 2017-08-25 16:02:15 +02:00
Clifford Wolf 382cc90c65 Further improve extract_fa (seems to be fully functional now) 2017-08-25 13:41:54 +02:00
Clifford Wolf 0bf612506c Rename "adders" to "extract_fa" 2017-08-25 12:04:40 +02:00
Clifford Wolf 15cdda7c4b Towards more generic "adder" function extractor 2017-08-23 14:20:10 +02:00
Clifford Wolf 51cbec7f75 Add experimental adders pass 2017-08-22 13:52:13 +02:00