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4763 commits 122 branches 59 tags 72 MiB
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374 commits

Author SHA1 Message Date
whitequark
aeeefc32d8 attrmap: extend -remove to allow removing attributes with any value. 
Currently, `-remove foo` would only remove an attribute `foo = ""`,
which doesn't work on an attribute like `src` that may have any
value. Extend `-remove` to handle both cases. `-remove foo=""` has
the old behavior, and `-remove foo` will remove the attribute with
whatever value it may have, which is still compatible with the old
behavior.
 2019-04-22 14:18:15 +00:00
Clifford Wolf
7b35d57592 Disable blackbox detection in techmap files 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-22 02:07:36 +02:00
Clifford Wolf
f84a84e3f1
Merge pull request #943 from YosysHQ/clifford/whitebox 
[WIP] Add "whitebox" attribute, add "read_verilog -wb"
 2019-04-20 20:51:54 +02:00
Clifford Wolf
f3ad8d680a Add "techmap -wb", use in formal flows 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-20 11:23:24 +02:00
Clifford Wolf
b7445ef387 Check blackbox attribute in techmap/simplemap 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-20 11:10:05 +02:00
Eddie Hung
9dec3d9978 Spelling fixes 2019-04-19 14:00:22 +02:00
Eddie Hung
290a798cec Ignore 'whitebox' attr in flatten with "-wb" option 2019-04-18 10:32:00 -07:00
Eddie Hung
070a2d2fd6 Fix abc's remap_name to not ignore [^0-9] when extracting sid 2019-04-18 09:55:03 -07:00
Eddie Hung
9aa94370a5 ABC to call retime all the time 2019-04-18 08:46:41 -07:00
Clifford Wolf
f4abc21d8a Add "whitebox" attribute, add "read_verilog -wb" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-18 17:45:47 +02:00
Eddie Hung
5f4024ffd2 Revert "abc -dff now implies "-D 0" otherwise retiming doesn't happen" 
This reverts commit 19271bd996.
 2019-04-10 08:31:40 -07:00
Eddie Hung
78d35a86c0 Revert ""&nf -D 0" fails => use "-D 1" instead" 
This reverts commit 3c253818ca.
 2019-04-10 08:31:35 -07:00
Eddie Hung
d559023007 Fix S0 -> S1 2019-04-05 16:28:14 -07:00
Eddie Hung
3c253818ca "&nf -D 0" fails => use "-D 1" instead 2019-04-05 15:30:19 -07:00
Eddie Hung
19271bd996 abc -dff now implies "-D 0" otherwise retiming doesn't happen 2019-04-05 14:42:25 -07:00
Niels Moseley
263ab60b43 Liberty file parser now accepts superfluous ; 2019-03-27 15:17:58 +01:00
Niels Moseley
487cb45b87 Liberty file parser now accepts superfluous ; 2019-03-27 15:15:53 +01:00
Niels Moseley
1f7f54e68e spaces -> tabs 2019-03-25 14:12:04 +01:00
Niels Moseley
9d9cc8a314 EOL is now accepted as ';' replacement on lines that look like: feature_xyz(option) 2019-03-25 12:15:10 +01:00
Niels Moseley
3b3b77291a Updated the liberty parser to accept [A:B] ranges (AST has not been updated). Liberty parser now also accepts key : value pair lines that do not end in ';'. 2019-03-24 22:54:18 +01:00
Larry Doolittle
61fc411c5d Clean up some whitepsace outliers 2019-02-26 09:39:46 -08:00
David Shah
58c22dae31 abc: Improved recovered netnames, also preserve src on nets with dress 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-02-06 22:23:13 +01:00
David Shah
8524a479b1 abc: Preserve naming through ABC using 'dress' command 
Signed-off-by: David Shah <dave@ds0.me>
 2019-02-06 22:23:13 +01:00
whitequark
e792bd56b7 flowmap: clean up terminology. 
* "map": group gates into LUTs;
  * "pack": replace gates with LUTs.

This is important because we have FlowMap and DF-Map, and currently
our messages are ambiguous.

Also clean up some other log messages while we're at it.
 2019-01-08 02:05:06 +00:00
whitequark
211c26a4c9 flowmap: implement depth relaxation. 2019-01-08 01:13:05 +00:00
whitequark
8b44198e23 flowmap: construct a max-volume max-flow min-cut, not just any one. 2019-01-06 19:51:37 +00:00
whitequark
2fcc1ee72e flowmap: add -minlut option, to allow postprocessing with opt_lut. 2019-01-04 21:18:03 +00:00
whitequark
9bc5cf0844 flowmap: cleanup for clarity. NFCI. 2019-01-04 13:04:20 +00:00
whitequark
fd21564deb flowmap: improve debug graph output. NFC. 2019-01-04 03:30:04 +00:00
whitequark
7850a0c28a flowmap: add link to longer version of paper. NFC. 2019-01-04 02:33:10 +00:00
whitequark
07af772a72 flowmap: new techmap pass. 2019-01-03 14:28:19 +00:00
Icenowy Zheng
256fb8c95c Add "dffinit -noreinit" parameter 
Sometimes the FF cell might be initialized during the map process, e.g.
some FPGA platforms (Anlogic Eagle and Lattice ECP5 for example) has
only a "SR" pin for a FF for async reset, that resets the FF to the
initial value, which means the async reset value should be set as the
initial value. In this case the DFFINIT pass shouldn't reinitialize it
to a different value, which will lead to error.

Add a "-noreinit" parameter for the safeguard. If a FF is not
technically initialized before DFFINIT pass, the default value should be
set to x.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
 2018-12-18 23:10:40 +08:00
Icenowy Zheng
fec8b3c81f Add "dffinit -strinit high low" 
On some platforms the string to initialize DFF might not be "high" and
"low", e.g. with Anlogic TD it's "SET" and "RESET".

Add a "-strinit" parameter for dffinit to allow specify the strings used
for high and low.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
 2018-12-18 15:37:43 +08:00
Clifford Wolf
2641a3089b
Revert "Proof-of-concept: preserve naming through ABC using dress" 2018-12-16 21:27:31 +01:00
Clifford Wolf
0d9c850a07
Merge pull request #735 from daveshah1/trifixes 
deminout fixes
 2018-12-16 16:02:21 +01:00
Clifford Wolf
a1fb5b1e4b
Merge pull request #714 from daveshah1/abc_preserve_naming 
Proof-of-concept: preserve naming through ABC using dress
 2018-12-16 15:41:30 +01:00
David Shah
4c59447168 deminout: Consider $tribuf cells 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-12 17:17:40 +00:00
David Shah
d3fe9465f3 deminout: Don't demote constant-driven inouts to inputs 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-12 16:50:46 +00:00
David Shah
1dfb2fecab abc: Preserve naming through ABC using 'dress' command 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 15:05:07 +00:00
whitequark
d1f2cb01dc lut2mux: handle 1-bit INIT constant in $lut cells. 
This pass already handles INIT constants shorter than 2^width, but
that was not done for the recursion base case.
 2018-12-05 19:27:48 +00:00
Clifford Wolf
c800e3bb16 Fix typo 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-12-04 23:30:23 +01:00
Sylvain Munaut
8d3ab626ea dff2dffe: Add option for unmap to only remove DFFE with low CE signal use 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-27 21:50:42 +01:00
Niels Moseley
cfc9b9147c DFFLIBMAP: changed 'missing pin' error into a warning with additional reason/info. 2018-11-06 12:11:52 +01:00
Clifford Wolf
719e29404a Allow square brackets in liberty identifiers 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-11-05 12:33:33 +01:00
Niels Moseley
04cd179696 Liberty file newline handling is more relaxed. More descriptive error message 2018-11-03 18:38:49 +01:00
Niels Moseley
d1e8249f9a Report an error when a liberty file contains pin references that reference non-existing pins 2018-11-03 18:07:51 +01:00
Clifford Wolf
67b1026297
Merge pull request #591 from hzeller/virtual-override 
Consistent use of 'override' for virtual methods in derived classes.
 2018-08-15 14:05:38 +02:00
Clifford Wolf
0eaab6cd1d Add missing <deque> include (MSVC build fix) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-07-22 15:21:59 +02:00
Henner Zeller
3aa4484a3c Consistent use of 'override' for virtual methods in derived classes. 
o Not all derived methods were marked 'override', but it is a great
  feature of C++11 that we should make use of.
o While at it: touched header files got a -*- c++ -*- for emacs to
  provide support for that language.
o use YS_OVERRIDE for all override keywords (though we should probably
  use the plain keyword going forward now that C++11 is established)
 2018-07-20 23:51:06 -07:00
David Shah
459d367913 ecp5: Adding synchronous set/reset support 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-14 16:18:01 +02:00