SO in assembly there are specific op codes that are used when the FPU is enabled versus emulated when not. So unless you write in asembly, it will be hard for the C compiiler to do this. There are specfic exceptions and ISR for the FPU, you can monitor those. These are explained in the App note for the FPU at www.st.com/stm32f4.
NASA's Orion Flight Software Production Systems Manager Darrel G. Raines joins Planet Analog Editor Steve Taranovich and Embedded.com Editor Max Maxfield to talk about embedded flight software used on the Mars on EE Times Radio. Live radio show and live chat. Get your questions ready.