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Code Activity
13554 commits 94 branches 53 tags 44 MiB
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1316 commits

Author SHA1 Message Date
Eddie Hung
d4545d415b abc9 to cope with non-wideports, count cells properly 2019-02-16 08:53:06 -08:00
Eddie Hung
f8d0134598 Move lookup inside if 2019-02-15 15:23:26 -08:00
Eddie Hung
a786ac4d53 Refactor 2019-02-15 13:00:13 -08:00
Eddie Hung
914546efd9 Cope with width != 1 when re-mapping cells 2019-02-15 12:55:52 -08:00
Eddie Hung
956ee545c5 abc9 to stitch results with CI/CO properly 2019-02-15 11:52:34 -08:00
Eddie Hung
206f11dca3 Fix stitching 2019-02-13 17:04:23 -08:00
Eddie Hung
f0f5d8a5cc Merge remote-tracking branch 'origin/read_aiger' into xaig 2019-02-13 14:09:36 -08:00
Eddie Hung
87f059adf7 Rip out some more stuff 2019-02-13 10:44:52 -08:00
Eddie Hung
045f7763ae Rip out unused functions in abc9 2019-02-12 16:25:22 -08:00
Eddie Hung
b3341b4abb WIP for ABC with aiger 2019-02-12 09:31:22 -08:00
Eddie Hung
c23e3f0751 Missing headers for Xcode? 2019-02-12 09:24:13 -08:00
Eddie Hung
5a0a5aae4f Compile abc9 2019-02-08 13:58:47 -08:00
Eddie Hung
e25a22015f Copy abc.cc to abc9.cc 2019-02-08 13:23:54 -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
Clifford Wolf
675a44b41a Be slightly less aggressive in "deminout" pass 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-19 14:29:38 +02:00
Robert Ou
9763e4d830 Fix infinite loop in abc command under emscripten 2018-05-18 22:42:39 -07:00
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