Merge pull request #4021 from povik/booth-wallace

Change `booth` architecture for improved delay, similar signed/unsigned results
YosysHQ · Nov 27, 2023 · beaae79 · beaae79
2 parents 031ad38 + de16cd2
commit beaae79
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Showing 3 changed files with 213 additions and 293 deletions.
diff --git a/kernel/rtlil.h b/kernel/rtlil.h
@@ -921,6 +921,9 @@ struct RTLIL::SigSpec
 	RTLIL::SigSpec extract(int offset, int length = 1) const;
 	RTLIL::SigSpec extract_end(int offset) const { return extract(offset, width_ - offset); }
 
+	RTLIL::SigBit lsb() const { log_assert(width_); return (*this)[0]; };
+	RTLIL::SigBit msb() const { log_assert(width_); return (*this)[width_ - 1]; };
+
 	void append(const RTLIL::SigSpec &signal);
 	inline void append(Wire *wire) { append(RTLIL::SigSpec(wire)); }
 	inline void append(const RTLIL::SigChunk &chunk) { append(RTLIL::SigSpec(chunk)); }