Two recent cases piqued my curiosity. 1. sync #(.BUS_WIDTH(ADD_WIDTH), .RST_VALUE(ADD_WIDTH == 2 ? 2'b11 : ADD_WIDTH == 3 ? 3'b111 : {1'b1,{ADD_WIDTH-3{1'b0}},2'b11}) ) sync(...); In this case, if ADD_WIDTH is less than 3, the replication constant ADD_WIDTH-3 is negative and it is not legal. However, if ADD_WIDTH is 2, one could say that the replication constant does not need to be evaluated at all. This is related to the short-circuiting issue we discussed last year. Is this legal? Should it be? 2. parameter ADD_WIDTH = 0 ; ... {ADD_WIDTH-1{1'b0}}... Is there any significance to the legality of a default value of the parameter, or only to the actual instantiated values? Shalom Shalom Bresticker Intel Jerusalem LAD DA +972 2 589-6852 +972 54 721-1033 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.Received on Sun Feb 11 03:53:48 2007
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