I upgraded my CA51 to 7.00. My initial results on my code for my 5K part are: Keil 6.23 CA51 => 4F9B code size Keil 7.00 CA51 => 5035 code size I like to keep current with my tools. Is there an option I can set on the 7.00 CA51 compiler so I can get the 6.23 performance?