Hi,

I am writing a control application using Hi-Tech "C"  compiler using 
PIC18F6720.

The device has a range of Digital inputs and outputs that are not 
physically assigned in a sequential manner (ie. RC1,RC4,RB5 etc)
but I would like to refer to them logically in the program as an array 
of sequential bits.

Up till now I have being using #define to assign ports.
ie. #define D0 LATC1
    #define D1 LATB5

etc.

In the firmware I have an array that represents the status of the IO 
ports. example: DoutStatus[x].

I want to be able to switch the IO on/off in a simple loop

for(x=0; x<=maxIO; x++)
{
   Dout[x] = DoutStatus[x];
}

I am wanting to avoid a drawn out methos as shown below...
     if( Dout[1] == true) then Dout1 = true; else Dout1 = false;
     if( Dout[2] == true) then Dout2 = true; else Dout1 = false;

Maybe there is a lookup array that defines the Address of the SFR and 
the bit mask for each Output ? This still seems a bit messy.

Thanks in advance

Regards

David


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