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Code Activity
4985 commits 122 branches 59 tags 73 MiB
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424 commits

Author SHA1 Message Date
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
Eddie Hung
bf83c074c8 Cope with SHREG not having E port; Revert $pmux fine tune 2019-03-23 16:09:38 -07:00
Eddie Hung
098bd5758f Add support for SHREGMAP+$mux, also fine tune $pmux 2019-03-22 23:22:19 -07:00
Eddie Hung
0895093c7c Leftover printf 2019-03-22 19:14:04 -07:00
Eddie Hung
456295eb66 Fixes for multibit 2019-03-22 18:32:42 -07:00
Eddie Hung
03d108cd1f Working for 1 bit 2019-03-22 17:46:49 -07:00
Eddie Hung
5597270b9e Opt 2019-03-21 10:20:27 -07:00
Eddie Hung
2b911e270b Fix spacing 2019-03-20 12:28:39 -07:00
Eddie Hung
505e4c2d59 Revert $__SHREG_ to orig; use $__XILINX_SHREG for variable length 2019-03-19 21:58:05 -07:00
Eddie Hung
5445cd4d00 Add support for variable length Xilinx SRL > 128 2019-03-19 17:44:33 -07:00
Eddie Hung
4cd8f02973 shregmap -tech xilinx to delete $shiftx for var length SRL 2019-03-19 15:05:08 -07:00
Eddie Hung
0ea7eba5f1 Make output port a non chain user 2019-03-19 13:08:43 -07:00
Eddie Hung
ed32119d13 Fix shregmap to correctly recognise non chain users; cleanup 2019-03-18 16:12:19 -07:00
Eddie Hung
b94db54664 shiftx NULL pointer check 2019-03-18 13:35:54 -07:00
Eddie Hung
d6d9ef0fee Cleanup 2019-03-16 12:49:46 -07:00
Eddie Hung
fadeadb8c8 Only accept <128 for variable length, only if $shiftx exclusive 2019-03-16 08:51:13 -07:00
Eddie Hung
06f8f2654a Working 2019-03-15 19:13:40 -07:00
Eddie Hung
8af9979aab Revert "Add shregmap -init_msb_first and use in synth_xilinx" 
This reverts commit 26ecbc1aee.
 2019-03-14 09:01:48 -07:00
Eddie Hung
f1a8e8a480 Merge remote-tracking branch 'origin/master' into xc7srl 2019-03-14 08:59:19 -07:00
Eddie Hung
26ecbc1aee Add shregmap -init_msb_first and use in synth_xilinx 2019-03-14 08:10:02 -07:00
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