priority encoder using with select in VHDL

[sougata_vlsi13]

I am facing problem in writing the code of priority encoder using with select.....please help me in this regard

 

[TrickyDicky]

Help us by posting your code.

 

[sougata_vlsi13]

i have written the code using when else but i am nt getting how to select the expression using with select.As with select is equivalent to case expression some defined conditions are ncessary .....how to define that

 

[TrickyDicky]

with select is like this:

with a select
  b <= "000" when 0,
       "001" when 1,
       "010" when 2,
--etc

But case statements can be put inside a clocked process for synchronisation, with..select cannot.

 

[sougata_vlsi13]

Sir...is there any specific libraries i have to mention along with that code becoz 0,1,2 are all integers

 

[TrickyDicky]

so? if a is an integer then there is no problem.

 

[K-J]

Sir...is there any specific libraries i have to mention along with that code becoz 0,1,2 are all integers

Refer back to the original response that TrickyDicky had to this thread...post your code. If you have none yet, then write some first and then ask questions if it doesn't work as you expected.

Kevin