Claire Wolf
ab8826ae36
Merge pull request #1709 from rqou/coolrunner2_counter
...
Improve CoolRunner-II optimization by using extract_counter pass
2020-02-27 19:05:56 +01:00
R. Ou
13d0ff4a5f
coolrunner2: Use extract_counter to optimize counters
...
This tends to make much more efficient pterm usage compared to just
throwing the problem at ABC
2020-02-17 03:09:40 -08:00
R. Ou
6a0682f5a0
coolrunner2: Separate and improve buffer cell insertion pass
...
The new pass will contain all of the logic for inserting "passthrough"
product term and XOR cells as appropriate for the architecture. For
example, this commit fixes connecting an input pin directly to another
output pin with no logic in between.
2020-02-16 20:25:46 -08:00
Robert Ou
8fe9cdf364
coolrunner2: Add extraction for TFFs
2018-03-31 02:54:26 -07:00
Robert Ou
36b75dfcb7
coolrunner2: Initial mapping of latches
2017-06-25 23:58:28 -07:00
Robert Ou
4af5baab21
coolrunner2: Initial mapping of DFFs
...
All DFFs map to either FDCP (matches Xilinx) or a custom FDCP_N
(negative-edge triggered)
2017-06-25 23:58:28 -07:00
Robert Ou
a64b56648d
coolrunner2: Initial techmapping for $sop
2017-06-25 23:58:22 -07:00
Robert Ou
6e0fb889fa
coolrunner2: Initial commit
2017-06-24 07:22:56 -07:00
