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Code Activity
9183 commits 94 branches 53 tags 44 MiB
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1022 commits

Author SHA1 Message Date
Robert Ou
bfce3a7479 Add an option to statically link abc into yosys 
This is currently incomplete because the output filter no longer works.
 2018-05-18 22:35:28 -07:00
Clifford Wolf
fe80b39f56 Fix iopadmap for loops between tristate IO buffers 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-05-15 14:02:27 +02:00
Clifford Wolf
edd297fb1c Fix iopadmap for cases where IO pins already have buffers on them 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-05-15 13:13:43 +02:00
Clifford Wolf
145c685de0 Add ABC FAQ to "help abc" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-05-04 21:59:31 +02:00
Clifford Wolf
a572b49538 Replace -ignore_redef with -[no]overwrite 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-05-03 15:25:59 +02:00
Clifford Wolf
705c366a91 Added missing dont_use handling for SR FFs to dfflibmap 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-05 11:01:45 +02:00
Clifford Wolf
a74f805ba0 Fix handling of src attributes in flatten 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-03-10 13:55:30 +01:00
Clifford Wolf
9ac560f5d3 Add "dffinit -highlow" and fix synth_intel 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-01-09 18:42:19 +01:00
Clifford Wolf
a96c775a73 Add support for "yosys -E" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-01-07 16:36:13 +01:00
Staf Verhaegen
92eb841f0a Value of properties can be expression. 
Example found in the 2007.03 Liberty Reference Manual that was also found
in the wild:

    input_voltage(CMOS) {
        vil : 0.3 * VDD ;
        vih : 0.7 * VDD ;
        vimin : -0.5 ;
        vimax : VDD + 0.5 ;
    }

Current implementation just parses the expression but no interpretation is done.
 2018-01-03 21:37:17 +00:00
Clifford Wolf
7c57d8fbb4 Rewrite ABC output to include proper net names in timing report 2017-10-10 13:32:58 +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
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
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
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
Robert Ou
9a64ba3338 abc: Allow +/ filenames in the abc command 2017-08-14 12:11:11 -07:00
Clifford Wolf
5c09f24e48 Fix typo in "abc" pass help message 2017-07-29 16:21:58 +02:00
Clifford Wolf
b3bc7068d1 Fix handling of empty cell port assignments (i.e. ignore them) 2017-07-21 19:32:31 +02:00
Clifford Wolf
155a80dfb7 Fix handling of init values in "abc -dff" and "abc -clk" 2017-06-20 15:32:23 +02:00
Clifford Wolf
f6421c83a2 Switched abc "clock domain not found" error to log_cmd_error() 2017-06-20 04:22:34 +02:00