whitequark 892cff059b vendor.xilinx_{7series,ultrascale}: add (*keep*) on constrained clocks. ... If the clock signal is not a top-level port and has aliases, it can be optimized out, and then the constraint will no longer apply. To prevent this, make sure the constrained signal is preferred over any aliases by using the `keep` attribute. Vivado does not parse attributes like (* keep = 32'd1 *) as valid even though, AFAICT, they are equivalent to (* keep = 1 *) or simply (* keep *) per IEEE 1364. To work around this, use the solution we currently use for Quartus, which is `write_verilog -decimal`. Fixes #373.		2020-05-20 04:58:03 +00:00
..
back	back.rtlil: handle signed and large Instance parameters correctly.	2020-05-19 23:33:14 +00:00
build	plat, vendor: systematically escape net and file names in Tcl.	2020-05-02 10:41:18 +00:00
compat	Add support for using non-compat Elaboratable instances with compat.fhdl.verilog.convert and compat.run_simulation	2020-04-02 02:46:44 +00:00
hdl	hdl.ast: add const-shift operations.	2020-05-20 03:18:33 +00:00
lib	lib.cdc: add missing documentation for AsyncFFSynchronizer. NFC.	2020-04-27 02:20:29 +00:00
test	hdl.ast: add const-shift operations.	2020-05-20 03:18:33 +00:00
vendor	vendor.xilinx_{7series,ultrascale}: add (*keep*) on constrained clocks.	2020-05-20 04:58:03 +00:00
__init__.py	Remove everything deprecated in nmigen 0.1.	2020-01-12 13:59:26 +00:00
_toolchain.py	Refactor build script toolchain lookups.	2019-10-13 13:53:24 +00:00
_unused.py	_unused: extract must-use logic from hdl.ir.	2020-02-01 01:35:05 +00:00
_utils.py	hdl.ir: allow disabling UnusedElaboratable warning in file scope.	2019-10-26 06:17:14 +00:00
asserts.py	hdl.ast,back.rtlil: implement Cover.	2019-09-03 01:32:24 +00:00
cli.py	cli: update use of deprecated code.	2020-02-12 14:42:24 +00:00
rpc.py	rpc: add public Records as module ports.	2019-09-30 18:28:21 +00:00
tracer.py	tracer: fix get_var_name() to work on toplevel attributes.	2020-05-17 19:51:58 +00:00
utils.py	{,_}tools→{,_}utils	2019-10-13 18:53:38 +00:00