Using a PIC18F and writing in assembly, I have a group of outputs sprinkled among 
  several ports to turn on LEDs and the like. 
   
  The idea is I have a group of registers, where I keep track of what device is being enabled.  Only one output on at a time, per each register.
   
  For example:
   
  LeftSide is a register, bits [4:0] where only one bit is active at any given time.
  RightSide is similar.
   
  But, the 5 bits that are to be driven are perhaps in PortA, PortB and PortD...
  basically to make the board layout easier because afterall...each bit in each port 
  is controlled via LAT opcode...
  bsf  LATA,0
   
  or mask a shadow register and just movff shadow,LATA...either case it works, and
  is running slow.
   
  So the question is, I was going to use  movff LeftSide,scratch and
  then do a RRNCF and just look at the MSB of the scratch, keeping track of how 
  many times I rotated.  So that would tell me what bit of the LeftSide is active and
  then I can turn on the appropriate bit in the LAT register.  Well short of doing a 
  compare on all values of the count for several registers, I was looking for a method
  that I could almost do a 'cat' of the data.  In other words, the format of the output
  bits are all similar  SIDExOUTy where I would like x and y to be numeric variables
   and so I could call one routine to generate the output for each of the  four sides.  Remember this is in assembly.
   
  Any thoughts?  I may be slow on seeing responses and answering as I will be traveling for the next several days.

 		
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