How to access bit addressable?

Here is one to help a mechanical engineering student trying to program a microcontroller. P5 is a bit addressable register. In the header reg517.h is only the definiton of P5 as a sfr . How do I access...
How to access bit addressable?

Here is one to help a mechanical engineering student trying to program a microcontroller. P5 is a bit addressable register. In the header reg517.h is only the definiton of P5 as a sfr . How do I access...
how to access ports as "bit-addressable" in C51?

if i want to access only P1.3 or P2.4, how do i set it or reset it in C lang ? could some body kindly help me? thanx
how to access ports as "bit-addressable" in C51?

if i want to access only P1.3 or P2.4, how do i set it or reset it in C lang ? could some body kindly help me? thanx
Can't access addresses 0x00 - 0xFF of memory using XBYTE

I am using the XBYTE macro to access a memory mapped device. The chip select is being handled via another port (P1) to allow the full 64K of addresses to be axcessed. When I read data from the memory...