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Code Activity
7946 commits 99 branches 53 tags 46 MiB
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653 commits

Author SHA1 Message Date
Eddie Hung
5a00d5578c Add unconditional match blocks for force RAM 2019-12-16 13:31:15 -08:00
Eddie Hung
d910bec8e0 Update xc7/xcu bram rules 2019-12-16 13:00:58 -08:00
Diego H
f3f59910eb Removing fixed attribute value to !ramstyle rules 2019-12-15 23:51:58 -06:00
Diego H
b35559fc33 Merging attribute rules into a single match block; Adding tests 2019-12-15 23:33:09 -06:00
Diego H
266993408a Refactoring memory attribute matching based on IEEE 1364.1 and Tool specific 2019-12-13 15:43:24 -06:00
Eddie Hung
52875b0d61
Merge pull request #1533 from dh73/bram_xilinx 
Adjust Xilinx xc7/xcu BRAM min bits threshold for RAMB18E1
 2019-12-13 12:01:03 -08:00
Diego H
751a18d7e9 Fixing citation in xc7_xcu_brams.txt file. Fixing RAMB36E1 test. 2019-12-12 17:32:58 -06:00
Eddie Hung
9ab1feeaf1 abc9_map.v: fix Xilinx LUTRAM 2019-12-12 14:56:52 -08:00
Diego H
937ec1ee78 Updating RAMB36E1 thresholds. Adding test for both RAMB18E1/RAMB36E1 2019-12-12 13:50:36 -06:00
Diego H
ab6ac8327f Merge https://github.com/YosysHQ/yosys into bram_xilinx 2019-12-12 13:40:05 -06:00
Marcin Kościelnicki
fcce94010f
xilinx: Add tristate buffer mapping. (#1528) 
Fixes #1225.
 2019-12-04 09:44:00 +01:00
Marcin Kościelnicki
10014e2643
xilinx: Add models for LUTRAM cells. (#1537) 2019-12-04 06:31:09 +01:00
Marcin Kościelnicki
2badaa9adb xilinx: Add missing blackbox cell for BUFPLL. 2019-11-29 16:56:27 +01:00
Diego H
3a5a65829c Adjusting Vivado's BRAM min bits threshold for RAMB18E1 2019-11-27 12:05:04 -06:00
Marcin Kościelnicki
0466c48533 xilinx: Add simulation models for IOBUF and OBUFT. 2019-11-26 08:15:20 +01:00
Marcin Kościelnicki
6cdea425b8 clkbufmap: Add support for inverters in clock path. 2019-11-25 20:40:39 +01:00
Marcin Kościelnicki
7562e7304e xilinx: Use INV instead of LUT1 when applicable 2019-11-25 20:40:39 +01:00
Marcin Kościelnicki
7a9081440c xilinx: Add simulation models for MULT18X18* and DSP48A*. 
This adds simulation models for the following primitives:

- MULT18X18 and MULT18X18S (Virtex 2*, Spartan 3)
- MULT18X18SIO (Spartan 3E, Spartan 3A)
- DSP48A (Spartan 3A DSP) — implemented in terms of DSP48A1
- DSP48A1 (Spartan 6)
 2019-11-19 01:00:58 +01:00
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
Clifford Wolf
a3a7bb9bf7
Merge pull request #1452 from nakengelhardt/fix_dsp_mem_reg 
Call memory_dff before DSP mapping to reserve registers (fixes #1447)
 2019-10-22 17:36:54 +02:00
Sean Cross
82f60ba938 Makefile: don't assume python is called python3 
On some architectures, notably on Windows, the official name for the
Python binary from python.org is `python`.  The build system assumes
that python is called `python3`, which breaks under this architecture.

There is already infrastructure in place to determine the name of the
Python binary when building PYOSYS.  Since Python is now always required
to build Yosys, enable this check universally which sets the
`PYTHON_EXECUTABLE` variable.

Then, reuse this variable in other Makefiles as necessary, rather than
hardcoding `python3` everywhere.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-10-19 14:04:52 +08:00
N. Engelhardt
3b405d985e Call memory_dff before DSP mapping to reserve registers (fixes #1447) 2019-10-17 21:33:54 +02:00
Marcin Kościelnicki
526fe4cb89 xilinx: Add simulation model for IBUFG. 2019-10-10 13:16:03 +02:00
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
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
a5ac33f230 Merge branch 'master' into eddie/abc_to_abc9 2019-10-04 17:53:20 -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
9c23811839 Remove DSP48E1 from *_cells_xtra.v 2019-10-04 17:26:42 -07:00
Eddie Hung
aae2b9fd9c Rename abc_* names/attributes to more precisely be abc9_* 2019-10-04 11:04:10 -07:00
Eddie Hung
5b5756b91e Add LDCE/LDPE sim library, remove from *cells_xtra.{v,py} 2019-09-30 12:52:43 +02:00
Marcin Kościelnicki
4535f2c694 synth_xilinx: Support latches, remove used-up FF init values. 
Fixes #1387.
 2019-09-30 12:52:43 +02:00
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
c372e7baf9 Fix box name 2019-09-27 18:49:45 -07:00
Eddie Hung
b3d8a60cbd Re-order 2019-09-27 14:32:07 -07:00
Eddie Hung
143f82def2 Missing an '&' 2019-09-26 11:13:08 -07:00
Eddie Hung
033aefc0f4 Typo 2019-09-26 10:34:14 -07:00
Eddie Hung
781dda6175 select once 2019-09-26 10:15:05 -07:00
Eddie Hung
27e5bf5aad Stop trying to be too smart by prematurely optimising 2019-09-26 09:57:11 -07:00
Eddie Hung
53ea5daa42 Call 'wreduce' after mul2dsp to avoid unextend() 2019-09-25 14:04:36 -07:00
Eddie Hung
93363c94a2 Oops. Actually use __NAME__ in ABC_DSP48E1 macro 2019-09-25 10:33:16 -07:00
Eddie Hung
b41d2fb4e4 Add (* techmap_autopurge *) to abc_unmap.v too 2019-09-23 22:02:22 -07:00
Eddie Hung
11ac37733d Add techmap_autopurge to outputs in abc_map.v too 2019-09-23 21:56:28 -07:00
Eddie Hung
27167848f4 Revert "Add a xilinx_finalise pass" 
This reverts commit 23d90e0439.
 2019-09-23 19:52:55 -07:00
Eddie Hung
0f53893104 Revert "Remove (* techmap_autopurge *) from abc_unmap.v since no effect" 
This reverts commit 67c2db3486.
 2019-09-23 19:52:55 -07:00
Eddie Hung
29db96fa1f Revert "Vivado does not like zero width port connections" 
This reverts commit 895e2befa7.
 2019-09-23 19:52:54 -07:00
Eddie Hung
895e2befa7 Vivado does not like zero width port connections 2019-09-23 19:04:07 -07:00