Hello Don't remember as an operation is called and and therefore i have problems with the search for implementation. input [4:0] number1, output [31:0] number2 number2 has the form : 11..1100..00 where the cout of "1" is equal to the number1 As example number1 = 3, so number2 = 111000..00 As example number1 = 8, so number2 = 11111111000..00 I think the best way to speed and energy efficiency is to describe each output bit, but for large numbers it looks unattractive for reading and understanding. I would like to find a parametrized short record of this relationship, but I can not Thanks for the help

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Edited by User

Andy wrote: > This may work: > >

> assign number2 = ~(32'hFFFFFFFF >> number1); > |

Yes! Beautiful solution. Thanks, it's what i want.