eija_flight <ajie.dirgantara@xxxxxxxxxxxxxxx> writes: > I'm using the "i" constraint because I need to access specific registers > respectively, so I need to modify and then pass the variable value to the > asm codes to change the usage of each register dynamically. By using "r" > constraint, the compiler will be use any available general register, How is > my problem can be done by this method? If I understand you correctly, you must force the function to always be inlined. Otherwise there won't be an integer constant, so your asm will fail. You can force it to always be inlined by using the always_inline attribute which I already mentioned. Or you could use a preprocessor macro instead of a function. Ian
