Okay, so this will work?

bit mybit;
unsigned char mychar;
unsigned char mymask;

mychar = 0xFF;
mymask = 0x02; //I want to get bit 1
mybit = mychar & mymask;

I need the most efficient way to do this, as it'll be in the ISR.

Now i heared that the accumulator is bit addressable?
so is this also possible?

mov a, 0xFF
mov c, a.1
mov _mybit, c

Mas