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
8a2480526f
Fix $lut pin ordering inside $__ICE40_CARRY_WRAPPER
2019-08-12 12:19:25 -07:00
Eddie Hung
12c692f6ed
Revert "Merge pull request #1280 from YosysHQ/revert-1266-eddie/ice40_full_adder"
...
This reverts commit c851dc1310f54bf1631f
2019-08-12 12:06:45 -07:00
Miodrag Milanovic
5f561bdcb1
Proper arith for Anlogic and use standard pass
2019-08-12 20:21:36 +02:00
Miodrag Milanovic
2897fe4d09
Fix formating
2019-08-11 17:05:24 +02:00
Miodrag Milanovic
ead2b52b5a
one bit enable signal
2019-08-11 13:59:39 +02:00
Miodrag Milanovic
aa0c37722a
fix mixing signals on FF mapping
2019-08-11 11:40:15 +02:00
Miodrag Milanovic
853c755a0c
Replaced custom step with setundef
2019-08-11 11:01:46 +02:00
Miodrag Milanovic
e609537e38
Fixed data width
2019-08-11 10:46:48 +02:00
Miodrag Milanovic
8c8100e0df
Adding new pass to fix carry chain
2019-08-11 10:17:49 +02:00
Miodrag Milanovic
b3a91d6508
cleanup
2019-08-11 08:37:56 +02:00
David Shah
f9020ce2b3
Revert "Wrap SB_LUT+SB_CARRY into $__ICE40_CARRY_WRAPPER"
2019-08-10 17:14:48 +01:00
Clifford Wolf
f54bf1631f
Merge pull request #1258 from YosysHQ/eddie/cleanup
...
Cleanup a few barnacles across codebase
2019-08-10 09:52:14 +02:00
Clifford Wolf
a469d1a64a
Merge pull request #1270 from YosysHQ/eddie/alu_lcu_doc
...
Add a few comments to document $alu and $lcu
2019-08-10 09:46:46 +02:00
Eddie Hung
041defc5a6
Reformat so it shows up/looks nice when "help $alu" and "help $alu+"
2019-08-09 12:33:39 -07:00
Eddie Hung
acfb672d34
A bit more on where $lcu comes from
2019-08-09 09:50:47 -07:00
Eddie Hung
5aef998957
Add more comments
2019-08-09 09:48:17 -07:00
Miodrag Milanovic
d51b135e33
Fix CO
2019-08-09 12:37:10 +02:00
Miodrag Milanovic
7a860c5623
Merge remote-tracking branch 'upstream/master' into efinix
2019-08-09 09:46:37 +02:00
Eddie Hung
dae7c59358
Add a few comments to document $alu and $lcu
2019-08-08 10:05:28 -07:00
Eddie Hung
9776084eda
Allow whitebox modules to be overwritten
2019-08-07 16:40:24 -07:00
Eddie Hung
675c1d4218
Add ice40_wrapcarry pass, rename $__ICE40_FULL_ADDER -> CARRY_WRAPPER
2019-08-07 16:29:38 -07:00
Eddie Hung
cc331cf70d
Add test
2019-08-07 16:29:38 -07:00
Eddie Hung
ea8ac8fd74
Remove ice40_unlut
2019-08-07 16:29:38 -07:00
Eddie Hung
6b314c8371
Wrap SB_CARRY+SB_LUT into $__ICE40_FULL_ADDER
2019-08-07 16:29:38 -07:00
Eddie Hung
6d77236f38
substr() -> compare()
2019-08-07 12:20:08 -07:00
Eddie Hung
7164996921
RTLIL::S{0,1} -> State::S{0,1}
2019-08-07 11:12:38 -07:00
Eddie Hung
e6d5147214
Merge remote-tracking branch 'origin/master' into eddie/cleanup
2019-08-07 11:11:50 -07:00
Eddie Hung
48d0f99406
stoi -> atoi
2019-08-07 11:09:17 -07:00
David Shah
5545cd3c10
Merge pull request #1260 from YosysHQ/dave/ecp5_cell_fixes
...
ecp5: Make cells_sim.v consistent with nextpnr
2019-08-07 15:35:29 +01:00
David Shah
a36fd8582e
ecp5: Make cells_sim.v consistent with nextpnr
...
Signed-off-by: David Shah <dave@ds0.me>
2019-08-07 14:19:31 +01:00
Clifford Wolf
4c49ddf36a
Merge pull request #1249 from mmicko/anlogic_fix
...
anlogic : Fix alu mapping
2019-08-07 12:30:52 +02:00
Eddie Hung
e5be9ff871
Fix spacing
2019-08-06 16:47:55 -07:00
Eddie Hung
c11ad24fd7
Use std::stoi instead of atoi(<str>.c_str())
2019-08-06 16:45:48 -07:00
Eddie Hung
3486235338
Make liberal use of IdString.in()
2019-08-06 16:18:18 -07:00
Clifford Wolf
023086bd46
Add $_NMUX_, add "abc -g cmos", add proper cmos cell costs
...
Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-08-06 04:47:55 +02:00
Ben Widawsky
7de098ad45
techlibs/intel: Clean up Makefile
...
Use GNU make's foreach iterator and remove nonexistent files. Gmake is
already a requirement of the build system.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
2019-08-05 11:22:11 -07:00
Miodrag Milanovic
8a3329871b
clock for ram trough gbuf
2019-08-04 12:17:55 +02:00
Miodrag Milanovic
cf96f41c6d
Added bram support
2019-08-04 11:46:36 +02:00
Miodrag Milanovic
837cb0a1b9
anlogic : Fix alu mapping
2019-08-03 14:47:33 +02:00
Miodrag Milanovic
6e210f26fa
Custom step to add global clock buffers
2019-08-03 14:40:23 +02:00
Miodrag Milanovic
ab98f604fd
Initial EFINIX support
2019-08-03 13:10:44 +02:00
Clifford Wolf
f4ae6afc22
Merge pull request #1239 from mmicko/mingw_fix
...
Fix formatting for msys2 mingw build
2019-08-02 16:37:57 +02:00
Miodrag Milanovic
28b7053a01
Fix formatting for msys2 mingw build using GetSize
2019-08-01 17:27:34 +02:00
Eddie Hung
66806085db
RST -> RSTBRST for RAMB8BWER
2019-07-29 16:05:44 -07:00
Clifford Wolf
eb663c7579
Merge branch 'ZirconiumX-synth_intel_m9k'
2019-07-25 17:23:48 +02:00
Clifford Wolf
5c933e5110
Merge pull request #1218 from ZirconiumX/synth_intel_iopads
...
intel: Make -noiopads the default
2019-07-25 17:19:54 +02:00
Eddie Hung
5248a902ef
Merge pull request #1224 from YosysHQ/xilinx_fix_ff
...
xilinx: Fix missing cell name underscore in cells_map.v
2019-07-25 06:44:17 -07:00
