Eddie Hung
a098205479
Merge branch 'master' into mwk/xilinx_bufgmap
2019-08-26 13:25:17 -07:00
Eddie Hung
d7051b90de
Add undocumented feature
2019-08-23 16:41:32 -07:00
Eddie Hung
20f4d191b5
Merge branch 'master' into mwk/xilinx_bufgmap
2019-08-23 11:24:19 -07:00
Eddie Hung
509c353fe9
Forgot one
2019-08-23 11:23:50 -07:00
Eddie Hung
0d0ad15898
Merge branch 'master' into mwk/xilinx_bufgmap
2019-08-23 11:23:31 -07:00
Eddie Hung
a270af00cc
Put abc_* attributes above port
2019-08-23 11:21:44 -07:00
Eddie Hung
6872805a3e
Merge remote-tracking branch 'origin/master' into mwk/xilinx_bufgmap
2019-08-23 10:00:50 -07:00
Eddie Hung
33960dd3d8
Merge pull request #1209 from YosysHQ/eddie/synth_xilinx
...
[WIP] synth xilinx renaming, as per #1184
2019-08-20 12:55:26 -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
d81a090d89
Unify abc_carry_{in,out} into abc_carry and use port dir, as @mithro
2019-08-19 09:56:17 -07:00
Eddie Hung
562c9e3624
Attach abc_scc_break, abc_carry_{in,out} attr to ports not modules
2019-08-16 15:40:53 -07:00
Marcin Kościelnicki
3c75a72feb
move attributes to wires
2019-08-13 19:36:59 +00:00
Marcin Kościelnicki
49765ec19e
minor review fixes
2019-08-13 18:05:49 +00:00
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
48d0f99406
stoi -> atoi
2019-08-07 11:09:17 -07:00
Eddie Hung
66806085db
RST -> RSTBRST for RAMB8BWER
2019-07-29 16:05:44 -07:00
David Shah
ab607e896e
xilinx: Fix missing cell name underscore in cells_map.v
...
Signed-off-by: David Shah <dave@ds0.me>
2019-07-25 08:19:07 +01:00
Eddie Hung
43616e1414
Update Makefile too
2019-07-18 14:51:55 -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
19c1c3cfa3
Merge pull request #1182 from koriakin/xc6s-bram
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synth_xilinx: Initial Spartan 6 block RAM inference support.
2019-07-11 12:55:35 -07:00
Marcin Kościelnicki
a9efacd01d
xilinx: Fix the default values for FDPE/FDSE INIT attributes to match ISE/Vivado.
2019-07-11 21:13:12 +02:00
Marcin Kościelnicki
ce250b341c
synth_xilinx: Initial Spartan 6 block RAM inference support.
2019-07-11 14:45:48 +02:00
Eddie Hung
bb2144ae73
Merge pull request #1180 from YosysHQ/eddie/no_abc9_retime
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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
58bb84e5b2
Add some spacing
2019-07-10 12:32:33 -07:00
Eddie Hung
521971e32e
Add some ASCII art explaining mux decomposition
2019-07-10 12:20:04 -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
b1a048a703
Extend using A[1] to preserve don't care
2019-07-09 12:35:41 -07:00
Eddie Hung
93522b0ae1
Extend during mux decomposition with 1'bx
2019-07-09 10:59:37 -07:00
Eddie Hung
c864995343
Fix typo and comments
2019-07-09 10:38:07 -07:00
Eddie Hung
c91cb73562
Merge remote-tracking branch 'origin/master' into xc7mux
2019-07-09 10:22:49 -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
6951e32070
Decompose mux inputs in delay-orientated (rather than area) fashion
2019-07-08 23:51:13 -07:00
Eddie Hung
45da3ada7b
Do not call opt -mux_undef (part of -full) before muxcover
2019-07-08 23:49:16 -07:00
Eddie Hung
d4ab43d940
Add one more comment
2019-07-08 23:05:48 -07:00
Eddie Hung
939a225f92
Less thinking
2019-07-08 23:02:57 -07:00
Eddie Hung
de40453553
Reword
2019-07-08 22:56:19 -07:00
Eddie Hung
7f964859ec
synth_xilinx to call "synth -run coarse" with "-keepdc"
2019-07-08 19:23:24 -07:00
Eddie Hung
3f86407cc3
Map $__XILINX_SHIFTX in a more balanced manner
2019-07-08 17:06:35 -07:00
Eddie Hung
78914e2e0e
Capitalisation
2019-07-08 17:06:22 -07:00
Eddie Hung
baf47e496f
Add synth_xilinx -widemux recommended value
2019-07-08 17:04:39 -07:00
Eddie Hung
895ca50173
Fixes for 2:1 muxes
2019-07-08 12:03:38 -07:00
Eddie Hung
0944acf3af
synth_xilinx -widemux=2 is minimum now
2019-07-08 11:29:21 -07:00
Eddie Hung
dbe1326573
Parametric muxcover costs as per @daveshah1
2019-07-08 11:08:20 -07:00
