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247 commits

Author SHA1 Message Date
Eddie Hung
edec73fec1 abc9 to perform new 'map_ffs' before 'map_luts' 2019-08-21 15:37:55 -07:00
Eddie Hung
5ce0c31d0e Add init support 2019-08-21 13:05:10 -07:00
Eddie Hung
c7af71ecde Use semicolon 2019-08-21 11:47:17 -07:00
Eddie Hung
5d0f6cbd54 techmap before read 2019-08-21 11:47:06 -07:00
Eddie Hung
b7a48e3e0f Merge remote-tracking branch 'origin/master' into xc7dsp 2019-08-20 20:18:17 -07:00
Eddie Hung
c26c556384 xilinx to use abc_map.v with -max_iter 1 2019-08-20 19:47:11 -07:00
Eddie Hung
091bf4a18b Remove sequential extension 2019-08-20 18:16:37 -07:00
Eddie Hung
30a379b5b6 Cleanup techmap in map_luts 2019-08-20 17:59:31 -07:00
Eddie Hung
3b52d6e29c Move techmap abc_map.v into map_luts 2019-08-20 17:55:12 -07:00
Eddie Hung
8f666ebac1 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-08-20 17:36:14 -07:00
Eddie Hung
5eda5fc7eb Remove -icells 2019-08-20 12:41:11 -07:00
Eddie Hung
be9e4f1b67 Use abc_{map,unmap,model}.v 2019-08-20 12:39:11 -07:00
Eddie Hung
d9fe4cccbf Merge remote-tracking branch 'origin/master' into eddie/synth_xilinx 2019-08-20 11:57:52 -07:00
Eddie Hung
24c934f1af Merge branch 'eddie/abc9_refactor' into xaig_dff 2019-08-16 16:51:22 -07:00
Eddie Hung
261daffd9d Merge branch 'xc7dsp' of github.com:YosysHQ/yosys into xc7dsp 2019-08-15 12:19:47 -07:00
Marcin Kościelnicki
49765ec19e minor review fixes 2019-08-13 18:05:49 +00:00
Eddie Hung
2a1b98d478 Add DSP_A_MAXWIDTH_PARTIAL, refactor 2019-08-13 10:21:24 -07:00
David Shah
edff79a25a xilinx: Rework labels for faster Verilator testing
Signed-off-by: David Shah <dave@ds0.me>
2019-08-13 10:29:42 +01:00
Marcin Kościelnicki
c6d5b97b98 review fixes 2019-08-13 00:35:54 +00:00
Marcin Kościelnicki
f4c62f33ac Add clock buffer insertion pass, improve iopadmap.
A few new attributes are defined for use in cell libraries:

- iopad_external_pin: marks PAD cell's external-facing pin.  Pad
  insertion will be skipped for ports that are already connected
  to such a pin.
- clkbuf_sink: marks an input pin as a clock pin, requesting clock
  buffer insertion.
- clkbuf_driver: marks an output pin as a clock buffer output pin.
  Clock buffer insertion will be skipped for nets that are already
  driven by such a pin.

All three are module attributes that should be set to a comma-separeted
list of pin names.

Clock buffer insertion itself works as follows:

1. All cell ports, starting from bottom up, can be marked as clock sinks
   (requesting clock buffer insertion) or as clock buffer outputs.
2. If a wire in a given module is driven by a cell port that is a clock
   buffer output, it is in turn also considered a clock buffer output.
3. If an input port in a non-top module is connected to a clock sink in a
   contained cell, it is also in turn considered a clock sink.
4. If a wire in a module is driven by a non-clock-buffer cell, and is
   also connected to a clock sink port in a contained cell, a clock
   buffer is inserted in this module.
5. For the top module, a clock buffer is also inserted on input ports
   connected to clock sinks, optionally with a special kind of input
   PAD (such as IBUFG for Xilinx).
6. Clock buffer insertion on a given wire is skipped if the clkbuf_inhibit
   attribute is set on it.
2019-08-13 00:16:38 +02:00
Eddie Hung
f890cfb63b Merge remote-tracking branch 'origin/master' into xc7dsp 2019-08-12 11:32:10 -07:00
Eddie Hung
0b5b56c1ec Pack partial-product adder DSP48E1 packing 2019-08-09 15:19:33 -07:00
Eddie Hung
162eab6b74 Combine techmap calls 2019-08-08 10:55:48 -07:00
Eddie Hung
7160243874 Move xilinx_dsp to before alumacc 2019-08-08 10:45:56 -07:00
Eddie Hung
48d0f99406 stoi -> atoi 2019-08-07 11:09:17 -07:00
Eddie Hung
fc0b5d5ab6 Change $__softmul back to $mul 2019-08-01 12:45:14 -07:00
Eddie Hung
b97fe6e866 Work in progress for renaming labels/options in synth_xilinx 2019-07-18 14:20:43 -07:00
Eddie Hung
5562cb08a4 Use single DSP_SIGNEDONLY macro 2019-07-18 13:09:55 -07:00
Eddie Hung
58e63feae1 Update comment 2019-07-17 13:26:17 -07:00
Eddie Hung
6390c535ba Revert drop down to 24x16 multipliers for all 2019-07-16 14:30:25 -07:00
Eddie Hung
569cd66764 Merge branch 'xc7dsp' of github.com:YosysHQ/yosys into xc7dsp 2019-07-16 14:18:36 -07:00
David Shah
95c8d27b0b xilinx: Treat DSP48E1 as 24x17 unsigned for now (actual behaviour is 25x18 signed)
Signed-off-by: David Shah <dave@ds0.me>
2019-07-16 16:47:53 +01:00
Eddie Hung
5f00d335d4 Oops forgot these files 2019-07-15 15:03:15 -07:00
Eddie Hung
146451a767 Merge remote-tracking branch 'origin/master' into xc7dsp 2019-07-15 09:49:41 -07:00
Marcin Kościelnicki
ce250b341c synth_xilinx: Initial Spartan 6 block RAM inference support. 2019-07-11 14:45:48 +02:00
Eddie Hung
7b2599cb94 Move ABC FF stuff to abc_ff.v; add support for other FD* types 2019-07-10 17:06:05 -07:00
Eddie Hung
838ae1a14c synth_xilinx's map_cells stage to techmap ff_map.v 2019-07-10 16:15:57 -07:00
Eddie Hung
052060f109 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-07-10 16:05:41 -07:00
Eddie Hung
b33ecd2a74 Move dsp_map.v into cells_map.v; cleanup synth_xilinx a little 2019-07-10 16:00:03 -07:00
Eddie Hung
cea7441d8a Merge remote-tracking branch 'origin/master' into xc7dsp 2019-07-10 15:58:01 -07:00
Eddie Hung
bb2144ae73
Merge pull request #1180 from YosysHQ/eddie/no_abc9_retime
Error out if -abc9 and -retime specified
2019-07-10 14:38:13 -07:00
Eddie Hung
6bbd286e03 Error out if -abc9 and -retime specified 2019-07-10 12:47:48 -07:00
Eddie Hung
e573d024a2 Call muxpack and pmux2shiftx before cmp2lut 2019-07-09 21:26:38 -07:00
Eddie Hung
c55530b901 Restore opt_clean back to original place 2019-07-09 14:29:58 -07:00
Eddie Hung
5b48b18d29 Restore missing techmap -map +/cmp2lut.v with LUT_WIDTH=6 2019-07-09 14:28:54 -07:00
Eddie Hung
c68b909210 synth_xilinx to call commands of synth -coarse directly 2019-07-09 10:21:54 -07:00
Eddie Hung
737340327f Revert "synth_xilinx to call "synth -run coarse" with "-keepdc""
This reverts commit 7f964859ec.
2019-07-09 10:15:02 -07:00
Eddie Hung
bc84f7dd10 Fix spacing 2019-07-09 09:22:12 -07:00
Eddie Hung
667199d460 Fix spacing 2019-07-09 09:16:00 -07:00
Eddie Hung
45da3ada7b Do not call opt -mux_undef (part of -full) before muxcover 2019-07-08 23:49:16 -07:00