gnupic@linuxhacker.org

Well, that does work for the simple case. However, how about this:

; bit add

      bcf      bit0 >> 3,  bit0 & 7
      movlw   (1 << ( bit0 & 7)
      btfsc    bit1 >> 3,  bit1 & 7
       xorwf  ( bit0 >> 3),f
      btfsc    bit2 >> 3,  bit2 & 7
       xorwf  ( bit0 >> 3),f

Here, the bit is being accessed both as a bit and as a 'byte'.

What I really would like is a way of defining a single object to describe 
the bit variable. The only solution that I can think of for relocatable 
code requires two objects to describe a bit variable. You need to know the 
address of the byte containing the bit and the offeset within the byte. 
The byte can be relocated, but the offset is static. 


Scott


Try this

bitfield0	res	1
bitfield1	res	1
 
 bit0	EQU	0
 bit1	EQU	1
 bit2	EQU	2
....
 bit12  EQU   12

to access the byte
bitfield#v( ( bitN ) /8 )
 
 bitN =  bit0 -  bit999

to access the bit
( bitN%8) 
or
( bitN&7)