yosys
https://github.com/cliffordwolf/yosys
C++
Yosys Open SYnthesis Suite
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- Issues
- ERROR: Assert `current_val[i].wire != NULL || current_val[i] == value.bits[i]\' failed in ./kernel/consteval.h:79.
- ERROR: Assert `lut_slacks[node] >= 0' failed in passes/techmap/flowmap.cc:1295.
- Support for math operations on real constants
- Regression: synthesis fails when file names have spaces in path
- Parameter/attribute type encoding in protobuf backend
- Warn on mixing non-blocking and blocking assignments to the same variable
- \TRANSPARENT=1 prevents BRAM inference if $memrd and $memwr are in asynchronous domains
- Missing ECP5 simulation models
- Blackbox modules, Dynamic Port widths and write_smt2
- Map latches to Liberty file cells
- Docs
- C++ not yet supported