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Code Activity
14243 commits 121 branches 59 tags 72 MiB
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408 commits

Author SHA1 Message Date
Miodrag Milanovic
fdb393b6ce fix text to fit 80 columns 2022-05-23 19:57:21 +02:00
Miodrag Milanovic
4a5790d404 Update verific command file documentation 2022-05-23 19:35:14 +02:00
Miodrag Milanovic
a6ec5754c6 Use analysis mode if set in file 2022-05-23 19:13:45 +02:00
Jannis Harder
fada77b8cf verific: Use new value change logic also for $stable of wide signals. 
I missed this in the previous PR.
 2022-05-11 13:05:27 +02:00
Jannis Harder
587e09d551
Merge pull request #3305 from jix/sva_value_change_logic 
verific: Improve logic generated for SVA value change expressions
 2022-05-09 16:40:34 +02:00
Jannis Harder
a855d62b42 verific: Improve logic generated for SVA value change expressions 
The previously generated logic assumed an unconstrained past value in
the initial state and did not handle 'x values. While the current formal
verification flow uses 2-valued logic, SVA value change expressions
require a past value of 'x during the initial state to behave in the
expected way (i.e. to consider both an initial 0 and an initial 1 as
$changed and an initial 1 as $rose and an initial 0 as $fell).

This patch now generates logic that at the same time

	a) provides the expected behavior in a 2-valued logic setting, not
	   depending on any dont-care optimizations, and

	b) properly handles 'x values in yosys simulation
 2022-05-09 15:04:01 +02:00
Jannis Harder
96f64f4788 verific: Fix conditions of SVAs with explicit clocks within procedures 
For SVAs that have an explicit clock and are contained in a procedure
which conditionally executes the assertion, verific expresses this using
a mux with one input connected to constant 1 and the other output
connected to an SVA_AT. The existing code only handled the case where
the first input is connected to 1. This patch also handles the other
case.
 2022-05-03 14:13:08 +02:00
Miodrag Milanovic
422db937d4 Ignore merging past ffs that we are not properly merging 2022-04-29 14:35:02 +02:00
Miodrag Milanovic
1cc281ca6f verific: allow memories to be inferred in loops (vhdl) 2022-04-18 09:10:28 +02:00
N. Engelhardt
57bc29c64a verific: allow memories to be inferred in loops 2022-04-15 15:10:48 +02:00
Miodrag Milanovic
1a1f529099 Preserve internal wires for external nets 2022-04-01 12:07:15 +02:00
Miodrag Milanovic
bbf65702a1 Fix valgrind tests when using verific 2022-03-30 17:25:53 +02:00
Miodrag Milanovic
703769e494 Properly mark modules imported 2022-03-26 09:43:51 +01:00
Miodrag Milanovic
245ecb0529 Import verific netlist in consistent order 2022-03-25 13:44:16 +01:00
Miodrag Milanovic
29293a57bb Remove quotes if any from attribute 2022-02-16 19:10:13 +01:00
Miodrag Milanovic
2cef48bf2c Add ability to override verilog mode for verific -f command 2022-02-09 09:19:25 +01:00
Miodrag Milanovic
0b633b6c2e Use bmux for NTO1MUX 2022-02-02 16:16:08 +01:00
Claire Xenia Wolf
313340aed5 Add YOSYS to the implicitly defined verilog macros in verific 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-12-13 18:20:08 +01:00
Miodrag Milanović
2412497c26
Merge pull request #3102 from YosysHQ/claire/enumxz 
Fix verific import of enum values with x and/or z
 2021-12-10 19:36:37 +01:00
Claire Xenia Wolf
2da214d721 Fix verific import of enum values with x and/or z 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-12-10 14:52:27 +01:00
Claire Xen
19773d093f
Update verific.cc 
Ad-hoc fixes/improvements
 2021-12-10 14:27:18 +01:00
Miodrag Milanovic
b06f547993 If direction NONE use that from first bit 2021-12-08 11:50:10 +01:00
Miodrag Milanovic
3ebfa3fb84 Make sure cell names are unique for wide operators 2021-12-03 09:49:05 +01:00
Miodrag Milanovic
15a35f5584 No need to alocate more memory than used 2021-11-10 10:50:44 +01:00
Claire Xenia Wolf
2ea757da51 Add "verific -cfg" command 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-11-01 10:41:51 +01:00
Claire Xenia Wolf
83118bfb9e Fix verific gclk handling for async-load FFs 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-10-31 17:12:29 +01:00
Miodrag Milanovic
f7cc388bb5 Enable async load dff emit by default in Verific 2021-10-27 15:56:56 +02:00
Miodrag Milanovic
32673edfea Revert "Compile option for enabling async load verific support" 
This reverts commit b8624ad2ae.
 2021-10-27 15:55:43 +02:00
Miodrag Milanovic
b8624ad2ae Compile option for enabling async load verific support 2021-10-25 09:04:43 +02:00
Claire Xenia Wolf
90b440f870 Fix verific.cc PRIM_DLATCH handling 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-10-21 12:13:35 +02:00
Claire Xenia Wolf
16a177560f Initial Verific impoter support for {PRIM,WIDE_OPER}_DLATCH{,RS} 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-10-21 05:42:47 +02:00
Miodrag Milanovic
17269ae59b Option to disable verific VHDL support 2021-10-20 10:02:58 +02:00
Miodrag Milanovic
1aa6896966 Support PRIM_BUFIF1 primitive 2021-10-14 13:04:32 +02:00
Claire Xen
2d3c79458d
Merge pull request #3039 from YosysHQ/claire/verific_aldff 
Add support for $aldff flip-flops to verific importer
 2021-10-11 10:01:56 +02:00
Claire Xenia Wolf
c8074769b0 Add Verific adffe/dffsre/aldffe FIXMEs 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-10-11 10:00:20 +02:00
Miodrag Milanovic
93fbc9fba4 Import module attributes from Verific 2021-10-10 10:01:45 +02:00
Claire Xenia Wolf
34f1df8435 Fixes and add comments for open FIXME items 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-10-08 17:24:45 +02:00
Claire Xenia Wolf
1602a03864 Add support for $aldff flip-flops to verific importer 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2021-10-08 16:21:25 +02:00
Miodrag Milanovic
abc5700628 verific set db_infer_set_reset_registers 2021-10-04 16:48:33 +02:00
Miodrag Milanovic
c3d4bb4cc9 update required verific version 2021-09-02 14:59:16 +02:00
Miodrag Milanovic
b59c427348 Make Verific extensions optional 2021-08-20 10:19:04 +02:00
Miodrag Milanovic
be04d8834e Require latest verific 2021-08-02 10:29:58 +02:00
Miodrag Milanovic
987fca5297 Update to latest verific 2021-07-21 09:46:53 +02:00
Miodrag Milanovic
7a5ac90985 Update to latest Verific with extensions for initial assertions 2021-07-09 09:02:27 +02:00
Miodrag Milanovic
0dbb05a75e Add additional help 2021-07-05 09:16:54 +02:00
Miodrag Milanovic
c0d8da20d5 Support command files in Verific 2021-06-16 11:21:44 +02:00
Claire Xenia Wolf
72787f52fc Fixing old e-mail addresses and deadnames 
s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi;
s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi;
s/((David)\s+)+Shah\s+<(dave|david)@(symbioticeda.com|yosyshq.com|ds0.me)>/David Shah <dave@ds0.me>/gi;
s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi;
s,https?://www.clifford.at/yosys/,http://yosyshq.net/yosys/,g;
 2021-06-08 00:39:36 +02:00
Claire Xen
6c56c083f8
Update README 2021-03-04 16:43:30 +01:00
Claire Xen
27d7741540
Merge pull request #2574 from dh73/master 
Accept disable case for SVA liveness properties.
 2021-02-15 17:49:11 +01:00
Miodrag Milanovic
13c2fd7137 Ganulate Verific support 2021-02-12 10:08:43 +01:00