whitequark changed the topic of #yosys to: Yosys Open SYnthesis Suite: https://github.com/YosysHQ/yosys/ | Channel logs: https://libera.irclog.whitequark.org/yosys/ | Bridged to #yosys:matrix.org
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<lofty> tnt: iHP have a liberty file, right?
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<tnt> lofty: yes ?
<lofty> tnt: `abc -liberty` will do the tech mapping for you, although yes, it doesn't do multiple output cells
<tnt> Mmm, but why does sky130 have separate max files for mux2/mux4 latches .... if it's all automatic from .lib then ?
<tnt> s/max/map/
<lofty> tnt: ABC *can* infer muxes, but a lot of how it works amounts to shaking up the design like a snowglobe, and that information can get lost. it's not always obvious if muxes are better directly mapped or left to ABC though
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