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Code Activity
15877 commits 124 branches 59 tags 44 MiB
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333 commits

Author SHA1 Message Date
Eddie Hung
8e507bd807 abc9 -keepff -> -dff; refactor dff operations 2020-01-02 12:36:54 -08:00
Eddie Hung
d6242be802
Merge pull request #1601 from YosysHQ/eddie/synth_retime 
"abc -dff" to no longer retime by default
 2020-01-02 08:46:24 -08:00
Eddie Hung
c40b1aae42 Restore abc9 -keepff 2020-01-01 08:34:43 -08:00
Eddie Hung
405e974fe5 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-12-30 14:31:42 -08:00
Eddie Hung
d7ada66497 Add "synth_xilinx -dff" option, cleanup abc9 2019-12-30 14:13:16 -08:00
Eddie Hung
79448f9be0 Update doc that "-retime" calls abc with "-dff -D 1" 2019-12-30 13:28:29 -08:00
Eddie Hung
aa6d06c1b5 Revert "Revert "synth_* with -retime option now calls abc with -D 1 as well"" 
This reverts commit 6008bb7002.
 2019-12-30 13:28:29 -08:00
Miodrag Milanovic
8c3de1d4bd Merge remote-tracking branch 'origin/master' into iopad_default 2019-12-28 16:23:31 +01:00
Marcin Kościelnicki
666c6128a9 xilinx_dsp: Initial DSP48A/DSP48A1 support. 2019-12-22 20:51:14 +01:00
Miodrag Milanovic
436fea9e69 Addressed review comments 2019-12-21 20:23:23 +01:00
Miodrag Milanovic
1937091f62 iopad no op for compatibility with old scripts 2019-12-21 13:21:45 +01:00
Miodrag Milanovic
2fcf683af4 Make iopad option default for all xilinx flows 2019-12-21 11:56:41 +01:00
Eddie Hung
10e82e103f
Revert "Optimise write_xaiger" 2019-12-20 12:05:45 -08:00
Eddie Hung
94f15f023c Merge remote-tracking branch 'origin/master' into xaig_dff 2019-12-19 10:29:40 -08:00
Eddie Hung
df626ee7ab
Merge pull request #1558 from YosysHQ/eddie/xaiger_cleanup 
Optimise write_xaiger
 2019-12-19 12:24:03 -05:00
Marcin Kościelnicki
a235250403 xilinx: Add xilinx_dffopt pass (#1557) 2019-12-18 13:43:43 +01:00
Marcin Kościelnicki
aff6ad1ce0 xilinx: Improve flip-flop handling. 
This adds support for infering more kinds of flip-flops:

- FFs with async set/reset and clock enable
- FFs with sync set/reset
- FFs with sync set/reset and clock enable

Some passes have been moved (and some added) in order for dff2dffs to
work correctly.

This gives us complete coverage of Virtex 6+ and Spartan 6 flip-flop
capabilities (though not latch capabilities).  Older FPGAs also support
having both a set and a reset input, which will be handled at a later
data.
 2019-12-18 13:43:43 +01:00
Eddie Hung
dd7d2d8db6 Duplicate tribuf call, credit to @mwkmwkmwk 2019-12-13 08:51:05 -08:00
Eddie Hung
3bd623bb05 synth_xilinx: error out if tristate without '-iopad' 2019-12-12 14:33:33 -08:00
Eddie Hung
a46a7e8a67 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-12-06 23:22:52 -08:00
Eddie Hung
98c9ea605b techmap/aigmap of whiteboxes to occur before abc9 instead of in write_xaiger 2019-12-06 17:05:02 -08:00
Eddie Hung
02786b0aa0 Remove clkpart 2019-12-05 17:25:26 -08:00
Marcin Kościelnicki
fcce94010f
xilinx: Add tristate buffer mapping. (#1528) 
Fixes #1225.
 2019-12-04 09:44:00 +01:00
Eddie Hung
0add5965c7 techmap abc_unmap.v before xilinx_srl -fixed 2019-12-03 14:27:45 -08:00
Eddie Hung
b1ab7c16c4 clkpart -unpart into 'finalize' 2019-11-28 12:59:43 -08:00
Eddie Hung
df8dc6d1fb ean call after abc{,9} 2019-11-27 09:10:34 -08:00
Eddie Hung
739f530906 Move 'clean' from map_luts to finalize 2019-11-26 14:51:39 -08:00
Eddie Hung
eb11c06a69 For abc9, run clkpart before ff_map and after abc9 2019-11-23 10:18:22 -08:00
Eddie Hung
09ee96e8c2 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-11-19 15:40:39 -08:00
Marcin Kościelnicki
c4bd318e76 synth_xilinx: Merge blackbox primitive libraries. 
First, there are no longer separate cell libraries for xc6s/xc7/xcu.
Manually instantiating a primitive for a "wrong" family will result
in yosys passing it straight through to the output, and it will be
either upgraded or rejected by the P&R tool.

Second, the blackbox library is expanded to cover many more families:
everything from Spartan 3 up is included.  Primitives for Virtex and
Virtex 2 are listed in the Python file as well if we ever want to
include them, but that would require having two different ISE versions
(10.1 and 14.7) available when running cells_xtra.py, and so is probably
more trouble than it's worth.

Third, the blockram blackboxes are no longer in separate files — there
is no practical reason to do so (from synthesis PoV, they are no
different from any other cells_xtra blackbox), and they needlessly
complicated the flow (among other things, merging them allows the user
to use eg. Series 7 primitives and have them auto-upgraded to
Ultrascale).

Last, since xc5v logic synthesis appears to work reasonably well
(the only major problem is lack of blockram inference support), xc5v is
now an accepted setting for the -family option.
 2019-11-06 15:11:27 +01:00
David Shah
3506eaf290 xilinx: Add URAM288 mapping for xcup 
Signed-off-by: David Shah <dave@ds0.me>
 2019-10-23 11:47:44 +01:00
David Shah
6769d31ddb xilinx: Add support for UltraScale[+] BRAM mapping 
Signed-off-by: David Shah <dave@ds0.me>
 2019-10-23 11:47:37 +01:00
Marcin Kościelnicki
7b350cacd4 xilinx: Support multiplier mapping for all families. 
This supports several older families that are not yet supported for
actual logic synthesis — the intention is to add them soon.
 2019-10-22 18:06:57 +02:00
N. Engelhardt
3b405d985e Call memory_dff before DSP mapping to reserve registers (fixes #1447) 2019-10-17 21:33:54 +02:00
Eddie Hung
304e5f9ea4 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-10-08 13:03:06 -07:00
Eddie Hung
9fd2ddb14c
Merge pull request #1437 from YosysHQ/eddie/abc_to_abc9 
Rename abc_* names/attributes to more precisely be abc9_*
 2019-10-08 10:53:38 -07:00
Eddie Hung
1dc22607c3 Remove -D_ABC9 2019-10-07 12:21:52 -07:00
Eddie Hung
6c5e1234e1 Add comment on why partial multipliers are 18x18 2019-10-04 22:31:04 -07:00
Eddie Hung
b47bb5c810 Fix typo in check_label() 2019-10-04 21:43:50 -07:00
Eddie Hung
a2ef93f03a abc -> abc9 2019-10-04 17:56:38 -07:00
Eddie Hung
a5ac33f230 Merge branch 'master' into eddie/abc_to_abc9 2019-10-04 17:53:20 -07:00
Eddie Hung
bbc0e06af3 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-10-04 17:39:08 -07:00
Eddie Hung
0acc51c3d8 Add temporary abc9 -nomfs and use for synth_xilinx -abc9 2019-10-04 17:35:43 -07:00
Eddie Hung
d4212d128b Use read_args for read_verilog 2019-10-04 17:27:05 -07:00
Eddie Hung
7a45cd5856 Merge remote-tracking branch 'origin/eddie/abc_to_abc9' into xaig_dff 2019-10-04 16:58:55 -07:00
Eddie Hung
aae2b9fd9c Rename abc_* names/attributes to more precisely be abc9_* 2019-10-04 11:04:10 -07:00
Eddie Hung
1123c09588 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-09-29 19:39:12 -07:00
Eddie Hung
8474c5b366
Merge pull request #1359 from YosysHQ/xc7dsp 
DSP inference for Xilinx (improved for ice40, initial support for ecp5)
 2019-09-29 11:26:22 -07:00
Eddie Hung
79b6edb639 Big rework; flop info now mostly in cells_sim.v 2019-09-28 23:48:17 -07:00
Eddie Hung
b3d8a60cbd Re-order 2019-09-27 14:32:07 -07:00