sir , when I compile my program which is made for at89s52 it shows the error c235. Can you tell me solution of this problem?
"program which is made for at89s52"
So why did you choose 'None' as the toolset?
Isn't it obvious that this must be a specific question about C51?
"it shows the error c235"
The C51 Manual contains a complete listing of error codes - did you look at it?
Did you read the text of the error message? What did it tell you?