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99 Commits

Author SHA1 Message Date
whitequark ca866d384e write_verilog: handle the $shift cell. 
The implementation corresponds to the following Verilog, which is
lifted straight from simlib.v:

    module \\$shift (A, B, Y);

    parameter A_SIGNED = 0;
    parameter B_SIGNED = 0;
    parameter A_WIDTH = 0;
    parameter B_WIDTH = 0;
    parameter Y_WIDTH = 0;

    input [A_WIDTH-1:0] A;
    input [B_WIDTH-1:0] B;
    output [Y_WIDTH-1:0] Y;

    generate
        if (B_SIGNED) begin:BLOCK1
            assign Y = $signed(B) < 0 ? A << -B : A >> B;
        end else begin:BLOCK2
            assign Y = A >> B;
        end
    endgenerate

    endmodule
 2018-12-16 18:46:32 +00:00
Clifford Wolf ddff75b60a
Merge pull request #736 from whitequark/select_assert_list 
select: print selection if a -assert-* flag causes an error
 2018-12-16 16:45:49 +01:00
whitequark fccaa25ec1 write_verilog: add a missing newline. 2018-12-16 15:22:34 +00:00
whitequark 7fe770a441 write_verilog: correctly map RTLIL `sync init`. 2018-12-07 18:55:08 +00:00
rafaeltp c7770d9eea adding offset info to memories 2018-10-18 16:22:33 -07:00
rafaeltp 609f46eeb7 adding offset info to memories 2018-10-18 16:20:21 -07:00
acw1251 efac8a45a6 Fixed typo in "verilog_write" help message 2018-09-18 13:34:30 -04:00
Clifford Wolf 12440fcc8f Add $lut support to Verilog back-end 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-09-06 00:18:01 +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
Clifford Wolf d9a2b43014 Add $dlatch support to write_verilog 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-22 16:03:26 +02:00
Clifford Wolf adf1754729 Add $shiftx support to verilog front-end 2017-10-07 13:40:54 +02:00
Clifford Wolf 65f91e5120 Rename "write_verilog -nobasenradix" to "write_verilog -decimal" 2017-10-03 17:31:21 +02:00
dh73 e480847753 Fixed wrong declaration in Verilog backend 2017-10-01 11:11:32 -05:00
dh73 cbaba62401 Adding Cyclone IV (E, GX), Arria 10, Cyclone V and LPM functions (ALTPLL and M9K); M9K is not finished yet. Achronix Speedster also in this commit. Both Arria10 and Speedster-i are still experimental due complexity, but you can experiment around those devices right now 2017-10-01 11:04:17 -05:00
Clifford Wolf 05cdd58c8d Add $_ANDNOT_ and $_ORNOT_ gates 2017-05-17 09:08:29 +02:00
Clifford Wolf ce132cf652 Cleanups and fixed in write_verilog regarding reg init 2016-11-16 12:00:39 +01:00
Clifford Wolf 3db2ac4e00 Added hex constant support to write_verilog 2016-11-03 12:13:23 +01:00
Clifford Wolf caa2fc62ef Adde "write_verilog -renameprefix -v" 2016-11-01 11:30:27 +01:00
Clifford Wolf 75bf7416f0 Bugfix in partial mem write handling in verilog back-end 2016-08-20 13:06:06 +02:00
Clifford Wolf 9b8e06bee1 Added missing support for mem read enable ports to verilog back-end 2016-08-18 21:47:02 +02:00
Clifford Wolf f0a8713fea Fixed upto handling in verilog back-end 2016-08-15 08:26:20 +02:00
Clifford Wolf 5fe13a16ea Added "write_verilog -defparam" 2016-07-30 12:46:06 +02:00
Clifford Wolf 7fa61cba1b Added "write_verilog -nodec -nostr" 2016-07-30 12:38:40 +02:00
Clifford Wolf 0bc95f1e04 Added "yosys -D" feature 2016-04-21 23:28:37 +02:00
Clifford Wolf 2a8d5e64f5 Bugfix in write_verilog for RTLIL processes 2016-03-14 13:03:28 +01:00
Clifford Wolf 4ac202e2a5 Bugfixes in writing of memories as Verilog 2015-09-25 13:49:26 +02:00
Larry Doolittle 6c00704a5e Another block of spelling fixes 
Smaller this time
 2015-08-14 23:27:05 +02:00
Clifford Wolf 0350074819 Re-created command-reference-manual.tex, copied some doc fixes to online help 2015-08-14 11:27:19 +02:00
Clifford Wolf 84bf862f7c Spell check (by Larry Doolittle) 2015-08-14 10:56:05 +02:00
Clifford Wolf 6c84341f22 Fixed trailing whitespaces 2015-07-02 11:14:30 +02:00
luke whittlesey 2f90499e3d $mem cell in verilog backend : grouped writes by clock 2015-06-08 17:35:40 -04:00
luke whittlesey a8fe040906 Bug fix in $mem verilog backend + changed tests/bram flow of make test. 2015-06-04 16:12:40 -04:00
Clifford Wolf 4744bb95fb Some fixes for $mem in verilog back-end 2015-05-20 13:55:50 +02:00
Clifford Wolf 42348cddd9 Merge pull request #63 from wluker/verilog-backend-mem 
Fixed bug in $mem cell verilog code generation.
 2015-05-11 21:38:06 +02:00
luke whittlesey 3bb5f064b8 Fixed bug in $mem cell verilog code generation. 2015-05-11 14:05:18 -04:00
Clifford Wolf 9e56739634 Disabled broken $mem support in verilog backend 2015-05-10 21:38:41 +02:00
luke whittlesey 6de8fea2c7 Made changes recommended by Clifford Wolf ... 
Removed bit_check_equal(), used RTLIL::SigBit for individual bits, used
dict<> instead of std::map, and used RTLIL::SigSpec instead of
std::vector.
 2015-05-10 11:33:24 -04:00
luke whittlesey 2c1e150297 Verilog backend for $mem cells should now be able to handle different 
write-enable bits and RD_TRANSPARENT parameter settings.
 2015-05-08 15:29:51 -04:00
luke whittlesey c0b68f4848 Added support for $mem cells in the verilog backend. 2015-05-07 13:03:09 -04:00
Clifford Wolf d176e613c2 Minor fixes in handling of "init" attribute 2015-04-09 15:12:26 +02:00
Clifford Wolf b0c0ede879 Added "init" attribute support to verilog backend 2015-04-04 18:06:52 +02:00
Clifford Wolf 67e6dcd34a Added Verilog backend $dffsr support 2015-03-18 08:01:37 +01:00
Clifford Wolf 756b4064b2 Fixed "write_verilog -attr2comment" handling of "*/" in strings 2015-02-13 22:48:10 +01:00
Clifford Wolf 43951099cf Added dict/pool.sort() 2015-01-24 00:13:27 +01:00
Clifford Wolf 146f769bee Cosmetic changes in verilog output format 2015-01-02 22:57:08 +01:00
Clifford Wolf 9e6fb0b02c Replaced std::unordered_map as implementation for Yosys::dict 2014-12-26 21:35:22 +01:00
Clifford Wolf a6c96b986b Added Yosys::{dict,nodict,vector} container types 2014-12-26 10:53:21 +01:00
Clifford Wolf 5df192e71c Added $dffe support to write_verilog 2014-12-20 00:03:20 +01:00
Clifford Wolf 461594bb83 Fixed generation of temp names in verilog backend 2014-11-07 14:40:06 +01:00
Clifford Wolf 4569a747f8 Renamed SIZE() to GetSize() because of name collision on Win32 2014-10-10 17:07:24 +02:00