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76 Commits

Author SHA1 Message Date
Pepijn de Vos 8a2699c40c add negedge DFF 2019-10-21 12:31:11 +02:00
Pepijn de Vos af7bdd598e use ADDSUB ALU mode to remove inverters 2019-10-21 12:00:27 +02:00
Pepijn de Vos 72323e11a4 remove duplicate DFFR 2019-10-16 11:24:56 +02:00
Pepijn de Vos 2fb20f184a Revert "add MUX support" 
It turns out that they make everything worse and they don't PnR.

This reverts commit 3eff2271d0.
 2019-09-06 11:28:17 +02:00
Pepijn de Vos 96efa63f16 fix BRAM width and init 2019-09-06 10:55:04 +02:00
Pepijn de Vos 1b9f7f49b5 add more DFF to sim lib 2019-09-06 09:01:07 +02:00
Pepijn de Vos 5168b6ffa4 WIP aditional DFF primitives 2019-09-05 19:12:47 +02:00
Pepijn de Vos 47374a495d support bram initialisation 2019-09-05 17:25:51 +02:00
Pepijn de Vos 7a43be5e43 use singleton ground and vcc nets, apparently this makes pnr happier 2019-09-05 16:38:47 +02:00
Pepijn de Vos 3eff2271d0 add MUX support 2019-09-05 13:36:41 +02:00
Pepijn de Vos ae93c034ad set undriven pads to zero 2019-09-04 16:29:40 +02:00
Pepijn de Vos a6d81a8d14 Merge remote-tracking branch 'diego/gowin' 2019-09-04 11:20:05 +02:00
Pepijn de Vos ec56438cf2 gowin: add splitnets to appease the PnR 2019-09-04 10:33:47 +02:00
Diego H 5aa8d7ceeb Updating gowin 2019-09-02 17:43:27 -05:00
Miodrag Milanovic 28b7053a01 Fix formatting for msys2 mingw build using GetSize 2019-08-01 17:27:34 +02:00
Clifford Wolf 913659d644 Merge branch 'master' of https://github.com/dh73/yosys_gowin into dh73-master 2019-04-22 09:09:27 +02:00
Diego f9272fc56d GoWin enablement: DRAM, initial BRAM, DRAM init, DRAM sim and synth_gowin flow 2019-04-12 23:40:02 -05:00
Miodrag Milanovic df92e9bdc2 Make nobram false by default for gowin 2019-04-02 19:21:01 +02:00
Larry Doolittle e2fc18f27b Reduce amount of trailing whitespace in code base 2019-02-28 14:58:11 -08:00
Miodrag Milanovic 3b17c9018a Unify usage of noflatten among architectures 2019-01-04 11:37:25 +01:00
whitequark efa278e232 Fix typographical and grammatical errors and inconsistencies. 
The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.

    DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
    DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
    codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint

More hits were found by looking through comments and strings manually.
 2019-01-02 13:12:17 +00:00
Diego H 819ca73096 Changes in GoWin synth commands and ALU primitive support 2018-12-03 20:08:35 -06:00
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
Clifford Wolf e9d73d2ee0 Indenting fixes in gowin sim cell lib 2016-11-08 18:54:00 +01:00
Clifford Wolf 3db2ac4e00 Added hex constant support to write_verilog 2016-11-03 12:13:23 +01:00
Clifford Wolf cae5131bac Added initial version of "synth_gowin" 2016-11-01 11:31:13 +01:00