How to read port pins in port(P0,1,2)?

i want to use function is

You've told us that about a dozen times already. And you've been told just about as often

1) that this is a bad idea, for the controller your using
2) how you can do it, if you still think you have to.

So what on earth do you think you'll achieve by posting the same question yet another time?

Did it still not occur to you that just because you want something doesn't mean you'll get it?

i want to use function is

You've told us that about a dozen times already. And you've been told just about as often

1) that this is a bad idea, for the controller your using
2) how you can do it, if you still think you have to.

So what on earth do you think you'll achieve by posting the same question yet another time?

Did it still not occur to you that just because you want something doesn't mean you'll get it?

How to read port pins in port(P0,x1,x2)?

temp1 = 1 <<= x1

temp2 = 1 <<= x2
temp2 |= temp1
temp3 = p0
temp3 &= temp2
return (temp3)

the above describe the needed process maybe not the most elegant way, but that (1 <<= x2) is the only way you can process port pins defined in a function header.

since you refuse to accept the inability to indirectly address bits, BEFORE YOU POST AGAIN study (I did not say 'read') "the bible" chapter 2. www.8052.com/.../120112

Erik

Note the <<= shifts and assigns - so left side better be assignable.