[avr-gcc-list] Efficient setting/clearing/checking bits in registers ?

[Robert Rozman]

Hello,

I have an application that frequently uses setting/clearing and checking
separate bits in data registers. In avr-gcc I'm using following macros, but
I'm not sure if that is code space efficient solution - it seems they are
not compiled to compact SBR,CBR instructions for CPU.

#define SETBIT(x,y) (x |= (y))
#define CLEARBIT(x,y) (x &= (~y))
#define CHECKBIT(x,y) (x & (y))

Any advice would be appreciated.

Thanks in advance,

Robert Rozman