Dec 24, 2010 #1 B billylee Junior Member level 1 Joined Sep 10, 2009 Messages 16 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Korea Activity points 1,390 The following is an example of the casex statement is this code ambiguous? Thank you! always @(*) begin casex (SumMsbSat1[16:13]) 4'b0000 : SumMsbSat3 = SumMsbSat1[13:0]; 4'b1111 : SumMsbSat3 = SumMsbSat1[13:0]; 4'b0xxx : SumMsbSat3 = {1'b0, {13{1'b1}}}; 4'b1xxx : SumMsbSat3 = {1'b1, {13{1'b0}}}; default : SumMsbSat3 = SumMsbSat1[13:0]; endcase end
The following is an example of the casex statement is this code ambiguous? Thank you! always @(*) begin casex (SumMsbSat1[16:13]) 4'b0000 : SumMsbSat3 = SumMsbSat1[13:0]; 4'b1111 : SumMsbSat3 = SumMsbSat1[13:0]; 4'b0xxx : SumMsbSat3 = {1'b0, {13{1'b1}}}; 4'b1xxx : SumMsbSat3 = {1'b1, {13{1'b0}}}; default : SumMsbSat3 = SumMsbSat1[13:0]; endcase end
Dec 24, 2010 #2 L lostinxlation Advanced Member level 2 Joined Aug 19, 2010 Messages 699 Helped 197 Reputation 394 Reaction score 183 Trophy points 1,323 Location San Jose area Activity points 5,051 Case statement is prioritized so that it looks fine to me, though you don't need default in this case.
Case statement is prioritized so that it looks fine to me, though you don't need default in this case.
Dec 24, 2010 #3 B billylee Junior Member level 1 Joined Sep 10, 2009 Messages 16 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Korea Activity points 1,390 thank you for your reply also my coworker agree with you! and Merry christmas~! Last edited: Dec 24, 2010