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Code Activity
13968 commits 122 branches 59 tags 72 MiB
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2296 commits

Author SHA1 Message Date
Eddie Hung
31ef4cc704 abc9_map.v to do `zinit' and make INIT = 1'b0 2019-12-04 16:11:02 -08:00
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
Eddie Hung
a181ff66d3 Add abc9_init wire, attach to abc9_flop cell 2019-12-03 18:47:09 -08:00
Eddie Hung
f98aa1c13f Revert "Add INIT value to abc9_control" 
This reverts commit 19bfb41958.
 2019-12-03 15:40:44 -08:00
Eddie Hung
ed3f359175 $__ICE40_CARRY_WRAPPER to use _TECHMAP_REPLACE_ for SB_CARRY to preserve 
name and attr
 2019-12-03 14:49:10 -08:00
Eddie Hung
1ea9ce0ad7 ice40_opt to ignore (* keep *) -ed cells 2019-12-03 14:48:39 -08:00
Eddie Hung
0add5965c7 techmap abc_unmap.v before xilinx_srl -fixed 2019-12-03 14:27:45 -08:00
Clifford Wolf
2ec6d832dc
Merge pull request #1524 from pepijndevos/gowindffinit 
Gowin: add and test DFF init values
 2019-12-03 08:43:18 -08:00
Pepijn de Vos
a3b25b4af8 Use -match-init to not synth contradicting init values 2019-12-03 15:12:25 +01:00
Eddie Hung
19bfb41958 Add INIT value to abc9_control 2019-12-02 14:17:06 -08:00
Marcin Kościelnicki
2badaa9adb xilinx: Add missing blackbox cell for BUFPLL. 2019-11-29 16:56:27 +01:00
Eddie Hung
b1ab7c16c4 clkpart -unpart into 'finalize' 2019-11-28 12:59:43 -08:00
Diego H
3a5a65829c Adjusting Vivado's BRAM min bits threshold for RAMB18E1 2019-11-27 12:05:04 -06:00
Eddie Hung
df8dc6d1fb ean call after abc{,9} 2019-11-27 09:10:34 -08:00
Eddie Hung
f6c0ec1d09 Merge remote-tracking branch 'origin/eddie/write_xaiger_improve' into xaig_dff 2019-11-27 01:03:33 -08:00
Eddie Hung
739f530906 Move 'clean' from map_luts to finalize 2019-11-26 14:51:39 -08:00
Marcin Kościelnicki
0466c48533 xilinx: Add simulation models for IOBUF and OBUFT. 2019-11-26 08:15:20 +01:00
Eddie Hung
d087024caf Merge remote-tracking branch 'origin/master' into xaig_dff 2019-11-25 12:42:09 -08:00
Eddie Hung
6a2eb5d8f9 Special abc9_clock wire to contain only clock signal 2019-11-25 12:36:13 -08:00
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
Pepijn de Vos
72d03dc910 attempt to fix formatting 2019-11-25 14:50:34 +01:00
Pepijn de Vos
6c79abbf5a gowin: add and test dff init values 2019-11-25 14:33:21 +01:00
Eddie Hung
eb11c06a69 For abc9, run clkpart before ff_map and after abc9 2019-11-23 10:18:22 -08:00
Martin Pietryka
97b22413e5 coolrunner2: remove spurious log_pop() call, fixes #1463 
This was causing a segmentation fault because there is no accompanying
log_push() call so header_count.size() became -1.

Signed-off-by: Martin Pietryka <martin@pietryka.at>
 2019-11-23 06:21:40 +01:00
Eddie Hung
bd56161775 Merge branch 'eddie/clkpart' into xaig_dff 2019-11-22 15:38:48 -08:00
Marcin Kościelnicki
1d098b7195 gowin: Add missing .gitignore entries 2019-11-22 14:40:36 +01:00
Eddie Hung
5a30e3ac3b Merge branch 'eddie/xaig_dff_adff' into xaig_dff 2019-11-21 16:15:25 -08:00
Eddie Hung
af3055fe83 Add blackbox model for $__ABC9_FF_ so that clock partitioning works 2019-11-20 14:30:56 -08:00
Eddie Hung
df63d75ff3 Fix INIT values 2019-11-20 11:26:59 -08:00
Eddie Hung
344619079d Do not drop async control signals in abc_map.v 2019-11-19 16:57:07 -08:00
Eddie Hung
09ee96e8c2 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-11-19 15:40:39 -08:00
Clifford Wolf
7ea0a5937b
Merge pull request #1449 from pepijndevos/gowin 
Improvements for gowin support
 2019-11-19 17:29:27 +01:00
Pepijn de Vos
8ab412eb16 Remove dff init altogether 
The hardware does not actually support it.
In reality it is always initialised to its reset value.
 2019-11-19 15:53:44 +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
Pepijn de Vos
dd8c7e1ddd add help for nowidelut and abc9 options 2019-11-18 14:26:09 +01:00
Pepijn de Vos
32f0296df1 Merge branch 'master' of https://github.com/YosysHQ/yosys into gowin 2019-11-16 12:43:17 +01:00
David Shah
51e4e29bb1 ecp5: Use new autoname pass for better cell/net names 
Signed-off-by: David Shah <dave@ds0.me>
 2019-11-15 21:03:11 +00:00
Clifford Wolf
e907ee4fde
Merge pull request #1490 from YosysHQ/clifford/autoname 
Add "autoname" pass and use it in "synth_ice40"
 2019-11-14 18:03:44 +01:00
Clifford Wolf
056ef76711
Merge pull request #1465 from YosysHQ/dave/ice40_timing_sim 
ice40: Support for post-place-and-route timing simulations
 2019-11-14 12:07:25 +01:00
Clifford Wolf
07c854b7af Add "autoname" pass and use it in "synth_ice40" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-11-13 13:41:16 +01:00
Pepijn de Vos
ab8c521030 fix fsm test with proper clock enable polarity 2019-11-11 17:51:26 +01:00
Pepijn de Vos
ec3faa7b96 Merge branch 'master' of https://github.com/YosysHQ/yosys into gowin 2019-11-11 17:08:40 +01:00
Clifford Wolf
362f4f996d Do not map $eq and $ne in cmp2lut, only proper arithmetic cmp 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-11-11 15:07:29 +01:00
Pepijn de Vos
0e5dbc4abc fix wide luts 2019-11-06 19:48:18 +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
Pepijn de Vos
0f6269b04c add IOBUF 2019-10-28 15:33:05 +01:00
Pepijn de Vos
903f997391 add tristate buffer and test 2019-10-28 15:18:01 +01:00
Pepijn de Vos
2f5e9e9885 More formatting 2019-10-28 13:10:12 +01:00