FPU

Floating-point unit helpers. More...

Functions
void	mcu_fpu_cleanup (void)
	Drop the calling thread's floating-point context.

Detailed Description

Floating-point unit helpers.

Function Documentation

mcu_fpu_cleanup()

void mcu_fpu_cleanup

(

void

)

Drop the calling thread's floating-point context.

Clears CONTROL.FPCA, so context switches stop stacking the FPU registers (an extra 132 bytes of stack) until the thread uses the FPU again. Call where no floating-point values are live, e.g. between events of an event loop.