caiyu/nextpnr
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28 Commits

Author SHA1 Message Date
gatecat
86699b42f6 Switch to potentially-sparse net users array 
This uses a new data structure for net.users that allows gaps, so
removing a port from a net is no longer an O(n) operation on the number
of users the net has.

Signed-off-by: gatecat <gatecat@ds0.me>
 2022-02-27 13:47:05 +00:00
gatecat
6a32aca4ac refactor: New member functions to replace design_utils 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-02-18 11:13:18 +00:00
gatecat
2ffb081442 Fixing old emails and names in copyrights 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-12 13:22:38 +01:00
David Shah
d8e748bc58 nexus: Refactor DSP macro splitting to make it more generic 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
30c65931b2 nexus: Add support for clocked MULT9X9s 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
9203181625 nexus: Support for unclocked 9x9 multiplies 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
094bf419d4 nexus: Miscellaneous DSP infrastructure 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
90608f2c89 nexus: Add some infrastructure for DSP packing 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
84d5426242 nexus: Working on validity checking 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
cf5cbd1153 ecp5: Preserve top level IO properly 
Signed-off-by: David Shah <dave@ds0.me>
 2019-10-18 15:58:57 +01:00
David Shah
12f375a239 ecp5: Fix USRMCLK primitive 
Signed-off-by: David Shah <dave@ds0.me>
 2019-05-10 18:51:45 +01:00
David Shah
a4ac174ccb design_utils: Adding some design helper functions 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-10-01 15:43:02 +01:00
David Shah
6afc2c75fd ecp5: Adding carry helper functions 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-30 15:13:31 +01:00
David Shah
924037129c Fix driver finder when net is undriven 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-17 11:00:18 +02:00
David Shah
1e8840b0f9 Update from increased clangformat line length 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-23 16:12:52 +02:00
Clifford Wolf
aa81f9d648 Switched from clifford@clifford.at to clifford@symbioticeda.com for copyright headers 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-22 16:19:17 +02:00
Clifford Wolf
79d1075345 Getting rid of old IdString API users, Add ctx to many internal APIs 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-18 17:08:35 +02:00
Clifford Wolf
8ee149f4fc Rename Design to Context, derive from Arch instead of instantiating 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-18 14:06:37 +02:00
David Shah
1b077320dc General reformatting 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-17 12:53:39 +02:00
David Shah
6a937e0b45 Updating copyrights 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-17 11:49:57 +02:00
David Shah
3afce5ff5a Improving the placer output 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-17 11:45:41 +02:00
David Shah
6b74d326d4 experiment: Simple heuristic-based placer 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-16 14:44:10 +02:00
David Shah
a76f5c5678 Remove IO buffers when fed by SB_IO 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-13 10:50:05 +02:00
Clifford Wolf
d62e341d5a Merge branch 'master' of gitlab.com:SymbioticEDA/nextpnr 2018-06-12 14:25:12 +02:00
Clifford Wolf
391d49c13e Add nextpnr namespace 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-12 14:24:59 +02:00
David Shah
2f61a9b98a ice40: Start working on a packer, currently not tested 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-12 12:13:11 +02:00
David Shah
5f813410aa ice40: Adding cell utilities for packing 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-12 11:49:54 +02:00
David Shah
3ce32b6b1d Adding some utilities for packing 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-12 11:02:07 +02:00