for an ARM Cortex M4 project, i want to use the CPU specific instructions for sqrt using the ARM Toolchain with the ARM Compiler.
I can sucessfully include CMSIS into the project, however, it seems, that the necessary macros are not generated (e.g. compiler etc.)
Moreover, if I strip everything unnecessary from CMSIS and onyl include the bare VSQRT in the syntax of CMSIS
__asm("VSQRT.F32 %0,%1" : "=t"(*pOut) : "t"(in)); (wrapped in a function)
the compiler complains about the constraints.
Do you know what is going wrong, or what I have to change? Unfortunately i cannot find a detailed documentation on the Freescale Arm Compiler or the vsqrt.