The outport instruction

[shedeed]

function outport in borland c

what does this instruction do " the second argument"
outport(0x379,0x05^0x0b)

 

[echo47]

c++ outport

That looks like C.
"outport" is not a standard C function.
You didn't tell us which compiler you are using. I'm guessing "outport" sends a byte to a port.

If those are correct guesses, then the ^ operator is bitwise exclusive-or, so the function outputs the value 0x0E to port 0x379.

 

[shedeed]

sorry it was really a c code instruction

 

[Belsugului]

Outport is a function in Borland C compilers (Turbo C or Borland C++).

outport sends a word to the specified output port.
outportb sends a byte to the specified output port.
The rest is true.

Belsugului[/i]

 

[shedeed]

does any body know how to interface the status register of the parallel port because it have thre reserved bits