[myhdl-list] full case / parallel case
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jandecaluwe
From: Jan D. <ja...@ja...> - 2010-06-22 00:06:41
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Currently the Verilog convertor outputs the synthesis directives full case / parallel case. It's an old thing, originally intended to make designs with case statements more optimal. I have read a paper that advocates against this, and I agree. A good synthesis tool should be able to infer these semantics from the code itself. If that's not possible, it means that there is a risk for simulation/synthesis mismatch. So I propose to remove these directives. Any objections? -- Jan Decaluwe - Resources bvba - http://www.jandecaluwe.com Python as a HDL: http://www.myhdl.org VHDL development, the modern way: http://www.sigasi.com Analog design automation: http://www.mephisto-da.com World-class digital design: http://www.easics.com |